[Android] Configure face recognition and segmentation details page (#619)

* 1.Classification Code submission;
2.Specification code format.

* Specification code format.

* Update strings.xml

* 1.Display ocr, detection and classification results.
2.Specification code format.

* Configure face recognition and semantic segmentation details page.

Co-authored-by: DefTruth <31974251+DefTruth@users.noreply.github.com>

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/classification/ClassificationMainActivity.java

@@ -2,6 +2,7 @@ package com.baidu.paddle.fastdeploy.app.examples.classification;
 
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.readTxt;
 
 import android.Manifest;
 import android.annotation.SuppressLint;
@@ -36,9 +37,9 @@ import com.baidu.paddle.fastdeploy.app.ui.Utils;
 import com.baidu.paddle.fastdeploy.app.ui.view.adapter.BaseResultAdapter;
 import com.baidu.paddle.fastdeploy.app.ui.view.model.BaseResultModel;
 import com.baidu.paddle.fastdeploy.vision.ClassifyResult;
+import com.baidu.paddle.fastdeploy.vision.Visualize;
 import com.baidu.paddle.fastdeploy.vision.classification.PaddleClasModel;
 
-import java.io.File;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
@@ -62,27 +63,33 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
     private SeekBar confidenceSeekbar;
     private TextView seekbarText;
     private float resultNum = 1.0f;
-    private ResultListView detectResultView;
+    private ResultListView resultView;
     private Bitmap shutterBitmap;
-    private Bitmap originShutterBitmap;
     private Bitmap picBitmap;
-    private Bitmap originPicBitmap;
+    private boolean isShutterBitmapCopied = false;
 
     public static final int TYPE_UNKNOWN = -1;
     public static final int BTN_SHUTTER = 0;
     public static final int ALBUM_SELECT = 1;
-    private static int TYPE = TYPE_UNKNOWN;
+    public static final int REALTIME_DETECT = 2;
+    private static int TYPE = REALTIME_DETECT;
 
     private static final int REQUEST_PERMISSION_CODE_STORAGE = 101;
     private static final int INTENT_CODE_PICK_IMAGE = 100;
+    private static final int TIME_SLEEP_INTERVAL = 50; // ms
 
-    String savedImagePath = "result.jpg";
     long timeElapsed = 0;
     long frameCounter = 0;
 
     // Call 'init' and 'release' manually later
     PaddleClasModel predictor = new PaddleClasModel();
 
+    private float[] scores;
+    private int[] labelId;
+    private boolean initialized;
+    private List<String> labelText;
+    private List<BaseResultModel> results = new ArrayList<>();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -114,12 +121,8 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
                 break;
             case R.id.btn_shutter:
                 TYPE = BTN_SHUTTER;
-                svPreview.onPause();
-                cameraPageView.setVisibility(View.GONE);
-                resultPageView.setVisibility(View.VISIBLE);
-                seekbarText.setText(resultNum + "");
-                confidenceSeekbar.setProgress((int) (resultNum * 100));
-                resultImage.setImageBitmap(shutterBitmap);
+                shutterAndPauseCamera();
+                resultView.setAdapter(null);
                 break;
             case R.id.btn_settings:
                 startActivity(new Intent(ClassificationMainActivity.this, ClassificationSettingsActivity.class));
@@ -130,7 +133,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
             case R.id.back_in_preview:
                 finish();
                 break;
-            case R.id.albumSelect:
+            case R.id.iv_select:
                 TYPE = ALBUM_SELECT;
                 // Judge whether authority has been granted.
                 if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
@@ -141,16 +144,84 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
                     intent.setType("image/*");
                     startActivityForResult(intent, INTENT_CODE_PICK_IMAGE);
                 }
+                resultView.setAdapter(null);
                 break;
             case R.id.back_in_result:
-                resultPageView.setVisibility(View.GONE);
-                cameraPageView.setVisibility(View.VISIBLE);
-                svPreview.onResume();
+                back();
                 break;
 
         }
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        back();
+    }
+
+    private void back() {
+        resultPageView.setVisibility(View.GONE);
+        cameraPageView.setVisibility(View.VISIBLE);
+        TYPE = REALTIME_DETECT;
+        isShutterBitmapCopied = false;
+        svPreview.onResume();
+        results.clear();
+        if (scores != null) {
+            scores = null;
+        }
+        if (labelId != null) {
+            labelId = null;
+        }
+    }
+
+    private void shutterAndPauseCamera() {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    // Sleep some times to ensure picture has been correctly shut.
+                    Thread.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                runOnUiThread(new Runnable() {
+                    @SuppressLint("SetTextI18n")
+                    public void run() {
+                        // These code will run in main thread.
+                        svPreview.onPause();
+                        cameraPageView.setVisibility(View.GONE);
+                        resultPageView.setVisibility(View.VISIBLE);
+                        seekbarText.setText(resultNum + "");
+                        confidenceSeekbar.setProgress((int) (resultNum * 100));
+                        if (shutterBitmap != null && !shutterBitmap.isRecycled()) {
+                            resultImage.setImageBitmap(shutterBitmap);
+                        } else {
+                            new AlertDialog.Builder(ClassificationMainActivity.this)
+                                    .setTitle("Empty Result!")
+                                    .setMessage("Current picture is empty, please shutting it again!")
+                                    .setCancelable(true)
+                                    .show();
+                        }
+                    }
+                });
+
+            }
+        }).start();
+    }
+
+    private void copyBitmapFromCamera(Bitmap ARGB8888ImageBitmap) {
+        if (isShutterBitmapCopied || ARGB8888ImageBitmap == null) {
+            return;
+        }
+        if (!ARGB8888ImageBitmap.isRecycled()) {
+            synchronized (this) {
+                shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
+            }
+            SystemClock.sleep(TIME_SLEEP_INTERVAL);
+            isShutterBitmapCopied = true;
+        }
+    }
+
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
@@ -163,7 +234,6 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
                 Uri uri = data.getData();
                 String path = getRealPathFromURI(this, uri);
                 picBitmap = decodeBitmap(path, 720, 1280);
-                originPicBitmap = picBitmap.copy(Bitmap.Config.ARGB_8888, true);
                 resultImage.setImageBitmap(picBitmap);
             }
         }
@@ -190,34 +260,17 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
 
     @Override
     public boolean onTextureChanged(Bitmap ARGB8888ImageBitmap) {
-        String savedImagePath = "";
-        synchronized (this) {
-            savedImagePath = Utils.getDCIMDirectory() + File.separator + "result.jpg";
-        }
         if (TYPE == BTN_SHUTTER) {
-            shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
-            originShutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
-        } else {
-            // Only reference in predict loops.
-            shutterBitmap = ARGB8888ImageBitmap;
-            originShutterBitmap = ARGB8888ImageBitmap;
+            copyBitmapFromCamera(ARGB8888ImageBitmap);
+            return false;
         }
         boolean modified = false;
-
         long tc = System.currentTimeMillis();
-        ClassifyResult result = predictor.predict(
-                ARGB8888ImageBitmap, true, ClassificationSettingsActivity.scoreThreshold);
-
+        ClassifyResult result = predictor.predict(ARGB8888ImageBitmap);
         timeElapsed += (System.currentTimeMillis() - tc);
-        frameCounter++;
-
+        Visualize.visClassification(ARGB8888ImageBitmap, result, resultNum, 12);
         modified = result.initialized();
-        if (!savedImagePath.isEmpty()) {
-            synchronized (this) {
-                ClassificationMainActivity.this.savedImagePath = "result.jpg";
-            }
-        }
-
+        frameCounter++;
         if (frameCounter >= 30) {
             final int fps = (int) (1000 / (timeElapsed / 30));
             runOnUiThread(new Runnable() {
@@ -259,7 +312,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
     }
 
     public void initView() {
-        TYPE = BTN_SHUTTER;
+        TYPE = REALTIME_DETECT;
         svPreview = (CameraSurfaceView) findViewById(R.id.sv_preview);
         svPreview.setOnTextureChangedListener(this);
         tvStatus = (TextView) findViewById(R.id.tv_status);
@@ -273,7 +326,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
         realtimeToggleButton.setOnClickListener(this);
         backInPreview = findViewById(R.id.back_in_preview);
         backInPreview.setOnClickListener(this);
-        albumSelectButton = findViewById(R.id.albumSelect);
+        albumSelectButton = findViewById(R.id.iv_select);
         albumSelectButton.setOnClickListener(this);
         cameraPageView = findViewById(R.id.camera_page);
         resultPageView = findViewById(R.id.result_page);
@@ -282,15 +335,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
         backInResult.setOnClickListener(this);
         confidenceSeekbar = findViewById(R.id.confidence_seekbar);
         seekbarText = findViewById(R.id.seekbar_text);
-        detectResultView = findViewById(R.id.result_list_view);
-
-        List<BaseResultModel> results = new ArrayList<>();
-        results.add(new BaseResultModel(1, "cup", 0.4f));
-        results.add(new BaseResultModel(2, "pen", 0.6f));
-        results.add(new BaseResultModel(3, "tang", 1.0f));
-        final BaseResultAdapter adapter = new BaseResultAdapter(this, R.layout.classification_result_page_item, results);
-        detectResultView.setAdapter(adapter);
-        detectResultView.invalidate();
+        resultView = findViewById(R.id.result_list_view);
 
         confidenceSeekbar.setMax(100);
         confidenceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@@ -301,6 +346,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
                 resultNum = bd.setScale(1, BigDecimal.ROUND_HALF_UP).floatValue();
                 seekbarText.setText(resultNum + "");
                 confidenceSeekbar.setProgress((int) (resultNum * 100));
+                results.clear();
             }
 
             @Override
@@ -315,16 +361,11 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
                     public void run() {
                         if (TYPE == ALBUM_SELECT) {
                             SystemClock.sleep(500);
-                            predictor.predict(picBitmap, savedImagePath, resultNum);
-                            resultImage.setImageBitmap(picBitmap);
-                            picBitmap = originPicBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            resultNum = 1.0f;
+                            detail(picBitmap);
                         } else {
                             SystemClock.sleep(500);
-                            predictor.predict(shutterBitmap, savedImagePath, resultNum);
-                            resultImage.setImageBitmap(shutterBitmap);
-                            shutterBitmap = originShutterBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            resultNum = 1.0f;
+                            svPreview.onPause();
+                            detail(shutterBitmap);
                         }
                     }
                 });
@@ -332,6 +373,34 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
         });
     }
 
+    private void detail(Bitmap bitmap) {
+        ClassifyResult result = predictor.predict(bitmap, true, ClassificationSettingsActivity.scoreThreshold);
+        if (scores == null) {
+            scores = result.mScores;
+        }
+        if (labelId == null) {
+            labelId = result.mLabelIds;
+        }
+        initialized = result.initialized();
+        if (initialized) {
+            for (int i = 0; i < labelId.length; i++) {
+                for (int j = 0; j < labelText.size(); j++) {
+                    if (scores[i] > resultNum) {
+                        if (labelId[i] == Integer.parseInt(labelText.get(j).substring(0, labelText.get(j).indexOf(" ")))) {
+                            results.add(new BaseResultModel(labelId[i], labelText.get(j), scores[i]));
+                        }
+                    }
+                }
+            }
+        }
+        BaseResultAdapter adapter = new BaseResultAdapter(getBaseContext(), R.layout.ocr_result_page_item, results);
+        resultView.setAdapter(adapter);
+        resultView.invalidate();
+
+        resultImage.setImageBitmap(bitmap);
+        resultNum = 1.0f;
+    }
+
     @SuppressLint("ApplySharedPref")
     public void initSettings() {
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
@@ -352,6 +421,7 @@ public class ClassificationMainActivity extends Activity implements View.OnClick
             String paramsFile = realModelDir + "/" + "inference.pdiparams";
             String configFile = realModelDir + "/" + "inference_cls.yaml";
             String labelFile = realLabelPath;
+            labelText = readTxt(labelFile);
             RuntimeOption option = new RuntimeOption();
             option.setCpuThreadNum(ClassificationSettingsActivity.cpuThreadNum);
             option.setLitePowerMode(ClassificationSettingsActivity.cpuPowerMode);

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/detection/DetectionMainActivity.java

@@ -8,18 +8,14 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
-import android.database.Cursor;
 import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.SystemClock;
 import android.preference.PreferenceManager;
-import android.provider.MediaStore;
 import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
-import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
@@ -31,7 +27,6 @@ import android.widget.TextView;
 
 import com.baidu.paddle.fastdeploy.RuntimeOption;
 import com.baidu.paddle.fastdeploy.app.examples.R;
-import com.baidu.paddle.fastdeploy.app.examples.facedet.FaceDetMainActivity;
 import com.baidu.paddle.fastdeploy.app.ui.view.CameraSurfaceView;
 import com.baidu.paddle.fastdeploy.app.ui.view.ResultListView;
 import com.baidu.paddle.fastdeploy.app.ui.Utils;
@@ -43,8 +38,8 @@ import com.baidu.paddle.fastdeploy.vision.detection.PicoDet;
 
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.readTxt;
 
-import java.io.File;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
@@ -68,11 +63,9 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
     private SeekBar confidenceSeekbar;
     private TextView seekbarText;
     private float resultNum = 1.0f;
-    private ResultListView detectResultView;
+    private ResultListView resultView;
     private Bitmap shutterBitmap;
-    private Bitmap originShutterBitmap;
     private Bitmap picBitmap;
-    private Bitmap originPicBitmap;
     private boolean isShutterBitmapCopied = false;
 
     public static final int TYPE_UNKNOWN = -1;
@@ -85,13 +78,18 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
     private static final int INTENT_CODE_PICK_IMAGE = 100;
     private static final int TIME_SLEEP_INTERVAL = 50; // ms
 
-    String savedImagePath = "result.jpg";
     long timeElapsed = 0;
     long frameCounter = 0;
 
     // Call 'init' and 'release' manually later
     PicoDet predictor = new PicoDet();
 
+    private float[] scores;
+    private int[] labelId;
+    private boolean initialized;
+    private List<String> labelText;
+    private List<BaseResultModel> results = new ArrayList<>();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -124,6 +122,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
             case R.id.btn_shutter:
                 TYPE = BTN_SHUTTER;
                 shutterAndPauseCamera();
+                resultView.setAdapter(null);
                 break;
             case R.id.btn_settings:
                 startActivity(new Intent(DetectionMainActivity.this, DetectionSettingsActivity.class));
@@ -134,7 +133,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
             case R.id.back_in_preview:
                 finish();
                 break;
-            case R.id.albumSelect:
+            case R.id.iv_select:
                 TYPE = ALBUM_SELECT;
                 // Judge whether authority has been granted.
                 if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
@@ -145,17 +144,35 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
                     intent.setType("image/*");
                     startActivityForResult(intent, INTENT_CODE_PICK_IMAGE);
                 }
+                resultView.setAdapter(null);
                 break;
             case R.id.back_in_result:
-                resultPageView.setVisibility(View.GONE);
-                cameraPageView.setVisibility(View.VISIBLE);
-                TYPE = REALTIME_DETECT;
-                isShutterBitmapCopied = false;
-                svPreview.onResume();
+                back();
                 break;
         }
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        back();
+    }
+
+    private void back() {
+        resultPageView.setVisibility(View.GONE);
+        cameraPageView.setVisibility(View.VISIBLE);
+        TYPE = REALTIME_DETECT;
+        isShutterBitmapCopied = false;
+        svPreview.onResume();
+        results.clear();
+        if (scores != null) {
+            scores = null;
+        }
+        if (labelId != null) {
+            labelId = null;
+        }
+    }
+
     private void shutterAndPauseCamera() {
         new Thread(new Runnable() {
             @Override
@@ -198,7 +215,6 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
         if (!ARGB8888ImageBitmap.isRecycled()) {
             synchronized (this) {
                 shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                originShutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
             }
             SystemClock.sleep(TIME_SLEEP_INTERVAL);
             isShutterBitmapCopied = true;
@@ -217,7 +233,6 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
                 Uri uri = data.getData();
                 String path = getRealPathFromURI(this, uri);
                 picBitmap = decodeBitmap(path, 720, 1280);
-                originPicBitmap = picBitmap.copy(Bitmap.Config.ARGB_8888, true);
                 resultImage.setImageBitmap(picBitmap);
             }
         }
@@ -248,27 +263,12 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
             copyBitmapFromCamera(ARGB8888ImageBitmap);
             return false;
         }
-
-        String savedImagePath = "";
-        synchronized (this) {
-            savedImagePath = Utils.getDCIMDirectory() + File.separator + "result.jpg";
-        }
-
         boolean modified = false;
-
         long tc = System.currentTimeMillis();
         DetectionResult result = predictor.predict(ARGB8888ImageBitmap);
         timeElapsed += (System.currentTimeMillis() - tc);
-
         Visualize.visDetection(ARGB8888ImageBitmap, result, DetectionSettingsActivity.scoreThreshold);
-
         modified = result.initialized();
-        if (!savedImagePath.isEmpty()) {
-            synchronized (this) {
-                DetectionMainActivity.this.savedImagePath = "result.jpg";
-            }
-        }
-
         frameCounter++;
         if (frameCounter >= 30) {
             final int fps = (int) (1000 / (timeElapsed / 30));
@@ -325,7 +325,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
         realtimeToggleButton.setOnClickListener(this);
         backInPreview = findViewById(R.id.back_in_preview);
         backInPreview.setOnClickListener(this);
-        albumSelectButton = findViewById(R.id.albumSelect);
+        albumSelectButton = findViewById(R.id.iv_select);
         albumSelectButton.setOnClickListener(this);
         cameraPageView = findViewById(R.id.camera_page);
         resultPageView = findViewById(R.id.result_page);
@@ -334,15 +334,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
         backInResult.setOnClickListener(this);
         confidenceSeekbar = findViewById(R.id.confidence_seekbar);
         seekbarText = findViewById(R.id.seekbar_text);
-        detectResultView = findViewById(R.id.result_list_view);
-
-        List<BaseResultModel> results = new ArrayList<>();
-        results.add(new BaseResultModel(1, "cup", 0.4f));
-        results.add(new BaseResultModel(2, "pen", 0.6f));
-        results.add(new BaseResultModel(3, "tang", 1.0f));
-        final BaseResultAdapter adapter = new BaseResultAdapter(this, R.layout.detection_result_page_item, results);
-        detectResultView.setAdapter(adapter);
-        detectResultView.invalidate();
+        resultView = findViewById(R.id.result_list_view);
 
         confidenceSeekbar.setMax(100);
         confidenceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@@ -353,6 +345,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
                 resultNum = bd.setScale(1, BigDecimal.ROUND_HALF_UP).floatValue();
                 seekbarText.setText(resultNum + "");
                 confidenceSeekbar.setProgress((int) (resultNum * 100));
+                results.clear();
             }
 
             @Override
@@ -367,20 +360,11 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
                     public void run() {
                         if (TYPE == ALBUM_SELECT) {
                             SystemClock.sleep(TIME_SLEEP_INTERVAL * 10);
-                            if (!picBitmap.isRecycled()) {
-                                predictor.predict(picBitmap, true, resultNum);
-                                resultImage.setImageBitmap(picBitmap);
-                                picBitmap = originPicBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
+                            detail(picBitmap);
                         } else {
                             SystemClock.sleep(TIME_SLEEP_INTERVAL * 10);
-                            if (!shutterBitmap.isRecycled()) {
-                                predictor.predict(shutterBitmap, true, resultNum);
-                                resultImage.setImageBitmap(shutterBitmap);
-                                shutterBitmap = originShutterBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
+                            svPreview.onPause();
+                            detail(shutterBitmap);
                         }
                     }
                 });
@@ -388,6 +372,35 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
         });
     }
 
+    private void detail(Bitmap bitmap) {
+        DetectionResult result = predictor.predict(
+                bitmap, true, DetectionSettingsActivity.scoreThreshold);
+        if (scores == null) {
+            scores = result.mScores;
+        }
+        if (labelId == null) {
+            labelId = result.mLabelIds;
+        }
+        initialized = result.initialized();
+        if (initialized) {
+            for (int i = 0; i < labelId.length; i++) {
+                for (int j = 0; j < labelText.size(); j++) {
+                    if (scores[i] > resultNum) {
+                        if (labelId[i] == j) {
+                            results.add(new BaseResultModel(labelId[i], labelText.get(j), scores[i]));
+                        }
+                    }
+                }
+            }
+        }
+        BaseResultAdapter adapter = new BaseResultAdapter(getBaseContext(), R.layout.ocr_result_page_item, results);
+        resultView.setAdapter(adapter);
+        resultView.invalidate();
+
+        resultImage.setImageBitmap(bitmap);
+        resultNum = 1.0f;
+    }
+
     @SuppressLint("ApplySharedPref")
     public void initSettings() {
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
@@ -408,6 +421,7 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
             String paramsFile = realModelDir + "/" + "model.pdiparams";
             String configFile = realModelDir + "/" + "infer_cfg.yml";
             String labelFile = realLabelPath;
+            labelText = readTxt(labelFile);
             RuntimeOption option = new RuntimeOption();
             option.setCpuThreadNum(DetectionSettingsActivity.cpuThreadNum);
             option.setLitePowerMode(DetectionSettingsActivity.cpuPowerMode);

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/facedet/FaceDetMainActivity.java

@@ -8,14 +8,11 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
-import android.database.Cursor;
 import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.SystemClock;
 import android.preference.PreferenceManager;
-import android.provider.MediaStore;
 import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
@@ -43,7 +40,6 @@ import com.baidu.paddle.fastdeploy.vision.facedet.SCRFD;
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
 import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
 
-import java.io.File;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
@@ -67,11 +63,9 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
     private SeekBar confidenceSeekbar;
     private TextView seekbarText;
     private float resultNum = 1.0f;
-    private ResultListView detectResultView;
+    private ResultListView resultView;
     private Bitmap shutterBitmap;
-    private Bitmap originShutterBitmap;
     private Bitmap picBitmap;
-    private Bitmap originPicBitmap;
     private boolean isShutterBitmapCopied = false;
 
     public static final int TYPE_UNKNOWN = -1;
@@ -84,13 +78,16 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
     private static final int INTENT_CODE_PICK_IMAGE = 100;
     private static final int TIME_SLEEP_INTERVAL = 50; // ms
 
-    String savedImagePath = "result.jpg";
     long timeElapsed = 0;
     long frameCounter = 0;
 
     // Call 'init' and 'release' manually later
     SCRFD predictor = new SCRFD();
 
+    public float[] scores;  // [n]
+    public boolean initialized = false;
+    private List<BaseResultModel> results = new ArrayList<>();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -123,6 +120,7 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
             case R.id.btn_shutter:
                 TYPE = BTN_SHUTTER;
                 shutterAndPauseCamera();
+                resultView.setAdapter(null);
                 break;
             case R.id.btn_settings:
                 startActivity(new Intent(FaceDetMainActivity.this, FaceDetSettingsActivity.class));
@@ -144,17 +142,32 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
                     intent.setType("image/*");
                     startActivityForResult(intent, INTENT_CODE_PICK_IMAGE);
                 }
+                resultView.setAdapter(null);
                 break;
             case R.id.back_in_result:
-                resultPageView.setVisibility(View.GONE);
-                cameraPageView.setVisibility(View.VISIBLE);
-                TYPE = REALTIME_DETECT;
-                isShutterBitmapCopied = false;
-                svPreview.onResume();
+                back();
                 break;
         }
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        back();
+    }
+
+    private void back() {
+        resultPageView.setVisibility(View.GONE);
+        cameraPageView.setVisibility(View.VISIBLE);
+        TYPE = REALTIME_DETECT;
+        isShutterBitmapCopied = false;
+        svPreview.onResume();
+        results.clear();
+        if (scores != null) {
+            scores = null;
+        }
+    }
+
     private void shutterAndPauseCamera() {
         new Thread(new Runnable() {
             @Override
@@ -197,7 +210,6 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
         if (!ARGB8888ImageBitmap.isRecycled()) {
             synchronized (this) {
                 shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                originShutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
             }
             SystemClock.sleep(TIME_SLEEP_INTERVAL);
             isShutterBitmapCopied = true;
@@ -216,7 +228,6 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
                 Uri uri = data.getData();
                 String path = getRealPathFromURI(this, uri);
                 picBitmap = decodeBitmap(path, 720, 1280);
-                originPicBitmap = picBitmap.copy(Bitmap.Config.ARGB_8888, true);
                 resultImage.setImageBitmap(picBitmap);
             }
         }
@@ -248,29 +259,14 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
             copyBitmapFromCamera(ARGB8888ImageBitmap);
             return false;
         }
-
-        String savedImagePath = "";
-        synchronized (this) {
-            savedImagePath = Utils.getDCIMDirectory() + File.separator + "result.jpg";
-        }
-
         boolean modified = false;
-
         long tc = System.currentTimeMillis();
+        SystemClock.sleep(TIME_SLEEP_INTERVAL);
         FaceDetectionResult result = predictor.predict(
                 ARGB8888ImageBitmap, FaceDetSettingsActivity.scoreThreshold, 0.4f);
-
         timeElapsed += (System.currentTimeMillis() - tc);
-
         Visualize.visFaceDetection(ARGB8888ImageBitmap, result);
-
         modified = result.initialized();
-        if (!savedImagePath.isEmpty()) {
-            synchronized (this) {
-                FaceDetMainActivity.this.savedImagePath = "result.jpg";
-            }
-        }
-
         frameCounter++;
         if (frameCounter >= 30) {
             final int fps = (int) (1000 / (timeElapsed / 30));
@@ -336,16 +332,7 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
         backInResult.setOnClickListener(this);
         confidenceSeekbar = findViewById(R.id.confidence_seekbar);
         seekbarText = findViewById(R.id.seekbar_text);
-        detectResultView = findViewById(R.id.result_list_view);
-
-        List<BaseResultModel> results = new ArrayList<>();
-        // TODO: add model results from FaceDetectionResult instead of using fake data.
-        results.add(new BaseResultModel(1, "face", 0.4f));
-        results.add(new BaseResultModel(2, "face", 0.6f));
-        results.add(new BaseResultModel(3, "face", 1.0f));
-        final BaseResultAdapter adapter = new BaseResultAdapter(this, R.layout.facedet_result_page_item, results);
-        detectResultView.setAdapter(adapter);
-        detectResultView.invalidate();
+        resultView = findViewById(R.id.result_list_view);
 
         confidenceSeekbar.setMax(100);
         confidenceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@@ -356,6 +343,7 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
                 resultNum = bd.setScale(1, BigDecimal.ROUND_HALF_UP).floatValue();
                 seekbarText.setText(resultNum + "");
                 confidenceSeekbar.setProgress((int) (resultNum * 100));
+                results.clear();
             }
 
             @Override
@@ -370,20 +358,11 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
                     public void run() {
                         if (TYPE == ALBUM_SELECT) {
                             SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
-                            if (!picBitmap.isRecycled()) {
-                                predictor.predict(picBitmap, true, resultNum, 0.4f);
-                                resultImage.setImageBitmap(picBitmap);
-                                picBitmap = originPicBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
+                            detail(picBitmap);
                         } else {
                             SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
-                            if (!shutterBitmap.isRecycled()) {
-                                predictor.predict(shutterBitmap, true, resultNum, 0.4f);
-                                resultImage.setImageBitmap(shutterBitmap);
-                                shutterBitmap = originShutterBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
+                            svPreview.onPause();
+                            detail(shutterBitmap);
                         }
                     }
                 });
@@ -391,6 +370,28 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
         });
     }
 
+    private void detail(Bitmap bitmap) {
+        FaceDetectionResult result = predictor.predict(bitmap, true, FaceDetSettingsActivity.scoreThreshold, 0.4f);
+        if (scores == null) {
+            scores = result.mScores;
+        }
+        initialized = result.initialized();
+        Log.e("GBD", initialized + "---initialized");
+        if (initialized) {
+            for (int i = 0; i < scores.length; i++) {
+                if (scores[i] > resultNum) {
+                    results.add(new BaseResultModel(i + 1, "face", scores[i]));
+                }
+            }
+        }
+        BaseResultAdapter adapter = new BaseResultAdapter(getBaseContext(), R.layout.ocr_result_page_item, results);
+        resultView.setAdapter(adapter);
+        resultView.invalidate();
+
+        resultImage.setImageBitmap(bitmap);
+        resultNum = 1.0f;
+    }
+
     @SuppressLint("ApplySharedPref")
     public void initSettings() {
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/ocr/OcrMainActivity.java

@@ -1,5 +1,7 @@
 package com.baidu.paddle.fastdeploy.app.examples.ocr;
 
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
 
 import android.Manifest;
 import android.annotation.SuppressLint;
@@ -10,32 +12,39 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
+import android.net.Uri;
 import android.os.Bundle;
+import android.os.SystemClock;
 import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.ImageButton;
 import android.widget.ImageView;
+import android.widget.SeekBar;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import com.baidu.paddle.fastdeploy.RuntimeOption;
 import com.baidu.paddle.fastdeploy.app.examples.R;
-import com.baidu.paddle.fastdeploy.app.ui.Utils;
 import com.baidu.paddle.fastdeploy.app.ui.view.CameraSurfaceView;
-import com.baidu.paddle.fastdeploy.vision.OCRResult;
+import com.baidu.paddle.fastdeploy.app.ui.view.ResultListView;
+import com.baidu.paddle.fastdeploy.app.ui.Utils;
+import com.baidu.paddle.fastdeploy.app.ui.view.adapter.BaseResultAdapter;
+import com.baidu.paddle.fastdeploy.app.ui.view.model.BaseResultModel;
 import com.baidu.paddle.fastdeploy.pipeline.PPOCRv2;
+import com.baidu.paddle.fastdeploy.vision.OCRResult;
+import com.baidu.paddle.fastdeploy.vision.Visualize;
 import com.baidu.paddle.fastdeploy.vision.ocr.Classifier;
 import com.baidu.paddle.fastdeploy.vision.ocr.DBDetector;
 import com.baidu.paddle.fastdeploy.vision.ocr.Recognizer;
 
-import java.io.File;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
 public class OcrMainActivity extends Activity implements View.OnClickListener, CameraSurfaceView.OnTextureChangedListener {
     private static final String TAG = OcrMainActivity.class.getSimpleName();
@@ -48,14 +57,40 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
     ImageView realtimeToggleButton;
     boolean isRealtimeStatusRunning = false;
     ImageView backInPreview;
+    private ImageView albumSelectButton;
+    private View cameraPageView;
+    private ViewGroup resultPageView;
+    private ImageView resultImage;
+    private ImageView backInResult;
+    private SeekBar confidenceSeekbar;
+    private TextView seekbarText;
+    private float resultNum = 1.0f;
+    private ResultListView resultView;
+    private Bitmap shutterBitmap;
+    private Bitmap picBitmap;
+    private boolean isShutterBitmapCopied = false;
 
-    String savedImagePath = "result.jpg";
-    int lastFrameIndex = 0;
-    long lastFrameTime;
+    public static final int TYPE_UNKNOWN = -1;
+    public static final int BTN_SHUTTER = 0;
+    public static final int ALBUM_SELECT = 1;
+    public static final int REALTIME_DETECT = 2;
+    private static int TYPE = REALTIME_DETECT;
+
+    private static final int REQUEST_PERMISSION_CODE_STORAGE = 101;
+    private static final int INTENT_CODE_PICK_IMAGE = 100;
+    private static final int TIME_SLEEP_INTERVAL = 50; // ms
+
+    long timeElapsed = 0;
+    long frameCounter = 0;
 
     // Call 'init' and 'release' manually later
     PPOCRv2 predictor = new PPOCRv2();
 
+    private String[] texts;
+    private float[] recScores;
+    private boolean initialized;
+    private List<BaseResultModel> results = new ArrayList<>();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -86,12 +121,9 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
                 svPreview.switchCamera();
                 break;
             case R.id.btn_shutter:
-                @SuppressLint("SimpleDateFormat")
-                SimpleDateFormat date = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");
-                synchronized (this) {
-                    savedImagePath = Utils.getDCIMDirectory() + File.separator + date.format(new Date()).toString() + ".png";
-                }
-                Toast.makeText(OcrMainActivity.this, "Save snapshot to " + savedImagePath, Toast.LENGTH_SHORT).show();
+                TYPE = BTN_SHUTTER;
+                shutterAndPauseCamera();
+                resultView.setAdapter(null);
                 break;
             case R.id.btn_settings:
                 startActivity(new Intent(OcrMainActivity.this, OcrSettingsActivity.class));
@@ -102,6 +134,109 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
             case R.id.back_in_preview:
                 finish();
                 break;
+            case R.id.iv_select:
+                TYPE = ALBUM_SELECT;
+                // Judge whether authority has been granted.
+                if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+                    // If this permission was requested before the application but the user refused the request, this method will return true.
+                    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_PERMISSION_CODE_STORAGE);
+                } else {
+                    Intent intent = new Intent(Intent.ACTION_PICK);
+                    intent.setType("image/*");
+                    startActivityForResult(intent, INTENT_CODE_PICK_IMAGE);
+                }
+                resultView.setAdapter(null);
+                break;
+            case R.id.back_in_result:
+                back();
+                break;
+        }
+    }
+
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        back();
+    }
+
+    private void back() {
+        resultPageView.setVisibility(View.GONE);
+        cameraPageView.setVisibility(View.VISIBLE);
+        TYPE = REALTIME_DETECT;
+        isShutterBitmapCopied = false;
+        svPreview.onResume();
+        results.clear();
+        if (texts != null) {
+            texts = null;
+        }
+        if (recScores != null) {
+            recScores = null;
+        }
+    }
+
+    private void shutterAndPauseCamera() {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    // Sleep some times to ensure picture has been correctly shut.
+                    Thread.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                runOnUiThread(new Runnable() {
+                    @SuppressLint("SetTextI18n")
+                    public void run() {
+                        // These code will run in main thread.
+                        svPreview.onPause();
+                        cameraPageView.setVisibility(View.GONE);
+                        resultPageView.setVisibility(View.VISIBLE);
+                        seekbarText.setText(resultNum + "");
+                        confidenceSeekbar.setProgress((int) (resultNum * 100));
+                        if (shutterBitmap != null && !shutterBitmap.isRecycled()) {
+                            resultImage.setImageBitmap(shutterBitmap);
+                        } else {
+                            new AlertDialog.Builder(OcrMainActivity.this)
+                                    .setTitle("Empty Result!")
+                                    .setMessage("Current picture is empty, please shutting it again!")
+                                    .setCancelable(true)
+                                    .show();
+                        }
+                    }
+                });
+
+            }
+        }).start();
+    }
+
+    private void copyBitmapFromCamera(Bitmap ARGB8888ImageBitmap) {
+        if (isShutterBitmapCopied || ARGB8888ImageBitmap == null) {
+            return;
+        }
+        if (!ARGB8888ImageBitmap.isRecycled()) {
+            synchronized (this) {
+                shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
+            }
+            SystemClock.sleep(TIME_SLEEP_INTERVAL);
+            isShutterBitmapCopied = true;
+        }
+    }
+
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == INTENT_CODE_PICK_IMAGE) {
+            if (resultCode == Activity.RESULT_OK) {
+                cameraPageView.setVisibility(View.GONE);
+                resultPageView.setVisibility(View.VISIBLE);
+                seekbarText.setText(resultNum + "");
+                confidenceSeekbar.setProgress((int) (resultNum * 100));
+                Uri uri = data.getData();
+                String path = getRealPathFromURI(this, uri);
+                picBitmap = decodeBitmap(path, 720, 1280);
+                resultImage.setImageBitmap(picBitmap);
+            }
         }
     }
 
@@ -126,29 +261,27 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
 
     @Override
     public boolean onTextureChanged(Bitmap ARGB8888ImageBitmap) {
-        String savedImagePath = "";
-        synchronized (this) {
-            savedImagePath = OcrMainActivity.this.savedImagePath;
+        if (TYPE == BTN_SHUTTER) {
+            copyBitmapFromCamera(ARGB8888ImageBitmap);
+            return false;
         }
         boolean modified = false;
-        OCRResult result = predictor.predict(ARGB8888ImageBitmap, savedImagePath);
+        long tc = System.currentTimeMillis();
+        OCRResult result = predictor.predict(ARGB8888ImageBitmap, true);
+        timeElapsed += (System.currentTimeMillis() - tc);
+        Visualize.visOcr(ARGB8888ImageBitmap, result);
         modified = result.initialized();
-        if (!savedImagePath.isEmpty()) {
-            synchronized (this) {
-                OcrMainActivity.this.savedImagePath = "result.jpg";
-            }
-        }
-        lastFrameIndex++;
-        if (lastFrameIndex >= 30) {
-            final int fps = (int) (lastFrameIndex * 1e9 / (System.nanoTime() - lastFrameTime));
+        frameCounter++;
+        if (frameCounter >= 30) {
+            final int fps = (int) (1000 / (timeElapsed / 30));
             runOnUiThread(new Runnable() {
                 @SuppressLint("SetTextI18n")
                 public void run() {
                     tvStatus.setText(Integer.toString(fps) + "fps");
                 }
             });
-            lastFrameIndex = 0;
-            lastFrameTime = System.nanoTime();
+            frameCounter = 0;
+            timeElapsed = 0;
         }
         return modified;
     }
@@ -180,6 +313,7 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
     }
 
     public void initView() {
+        TYPE = REALTIME_DETECT;
         svPreview = (CameraSurfaceView) findViewById(R.id.sv_preview);
         svPreview.setOnTextureChangedListener(this);
         tvStatus = (TextView) findViewById(R.id.tv_status);
@@ -193,6 +327,75 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
         realtimeToggleButton.setOnClickListener(this);
         backInPreview = findViewById(R.id.back_in_preview);
         backInPreview.setOnClickListener(this);
+        albumSelectButton = findViewById(R.id.iv_select);
+        albumSelectButton.setOnClickListener(this);
+        cameraPageView = findViewById(R.id.camera_page);
+        resultPageView = findViewById(R.id.result_page);
+        resultImage = findViewById(R.id.result_image);
+        backInResult = findViewById(R.id.back_in_result);
+        backInResult.setOnClickListener(this);
+        confidenceSeekbar = findViewById(R.id.confidence_seekbar);
+        seekbarText = findViewById(R.id.seekbar_text);
+        resultView = findViewById(R.id.result_list_view);
+
+        confidenceSeekbar.setMax(100);
+        confidenceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                float resultConfidence = seekBar.getProgress() / 100f;
+                BigDecimal bd = new BigDecimal(resultConfidence);
+                resultNum = bd.setScale(1, BigDecimal.ROUND_HALF_UP).floatValue();
+                seekbarText.setText(resultNum + "");
+                confidenceSeekbar.setProgress((int) (resultNum * 100));
+                results.clear();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        if (TYPE == ALBUM_SELECT) {
+                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10);
+                            detail(picBitmap);
+                        } else {
+                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10);
+                            svPreview.onPause();
+                            detail(shutterBitmap);
+                        }
+                    }
+                });
+            }
+        });
+    }
+
+    private void detail(Bitmap bitmap) {
+        OCRResult result = predictor.predict(bitmap, true);
+        if (texts == null) {
+            texts = result.mText;
+        }
+        if (recScores == null) {
+            recScores = result.mRecScores;
+        }
+        initialized = result.initialized();
+        if (initialized) {
+            for (int i = 0; i < texts.length; i++) {
+                if (recScores[i] > resultNum) {
+                    results.add(new BaseResultModel(i + 1, texts[i], recScores[i]));
+                }
+            }
+        }
+        BaseResultAdapter adapter = new BaseResultAdapter(getBaseContext(), R.layout.ocr_result_page_item, results);
+        resultView.setAdapter(adapter);
+        resultView.invalidate();
+
+        resultImage.setImageBitmap(bitmap);
+        resultNum = 1.0f;
     }
 
     @SuppressLint("ApplySharedPref")
@@ -215,9 +418,9 @@ public class OcrMainActivity extends Activity implements View.OnClickListener, C
             String realDetModelDir = realModelDir + "/" + detModelName;
             String realClsModelDir = realModelDir + "/" + clsModelName;
             String realRecModelDir = realModelDir + "/" + recModelName;
-            String srcDetModelDir =  OcrSettingsActivity.modelDir + "/" + detModelName;
-            String srcClsModelDir =  OcrSettingsActivity.modelDir + "/" + clsModelName;
-            String srcRecModelDir =  OcrSettingsActivity.modelDir + "/" + recModelName;
+            String srcDetModelDir = OcrSettingsActivity.modelDir + "/" + detModelName;
+            String srcClsModelDir = OcrSettingsActivity.modelDir + "/" + clsModelName;
+            String srcRecModelDir = OcrSettingsActivity.modelDir + "/" + recModelName;
             Utils.copyDirectoryFromAssets(this, srcDetModelDir, realDetModelDir);
             Utils.copyDirectoryFromAssets(this, srcClsModelDir, realClsModelDir);
             Utils.copyDirectoryFromAssets(this, srcRecModelDir, realRecModelDir);

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/segmentation/SegmentationMainActivity.java

@@ -1,8 +1,5 @@
 package com.baidu.paddle.fastdeploy.app.examples.segmentation;
 
-import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
-import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
-
 import android.Manifest;
 import android.annotation.SuppressLint;
 import android.app.Activity;
@@ -31,16 +28,17 @@ import android.widget.TextView;
 
 import com.baidu.paddle.fastdeploy.RuntimeOption;
 import com.baidu.paddle.fastdeploy.app.examples.R;
-import com.baidu.paddle.fastdeploy.app.ui.Utils;
 import com.baidu.paddle.fastdeploy.app.ui.view.CameraSurfaceView;
 import com.baidu.paddle.fastdeploy.app.ui.view.ResultListView;
-import com.baidu.paddle.fastdeploy.app.ui.view.adapter.BaseResultAdapter;
+import com.baidu.paddle.fastdeploy.app.ui.Utils;
 import com.baidu.paddle.fastdeploy.app.ui.view.model.BaseResultModel;
 import com.baidu.paddle.fastdeploy.vision.SegmentationResult;
 import com.baidu.paddle.fastdeploy.vision.Visualize;
 import com.baidu.paddle.fastdeploy.vision.segmentation.PaddleSegModel;
 
-import java.io.File;
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.decodeBitmap;
+import static com.baidu.paddle.fastdeploy.app.ui.Utils.getRealPathFromURI;
+
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
@@ -64,11 +62,9 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
     private SeekBar confidenceSeekbar;
     private TextView seekbarText;
     private float resultNum = 1.0f;
-    private ResultListView detectResultView;
+    private ResultListView resultView;
     private Bitmap shutterBitmap;
-    private Bitmap originShutterBitmap;
     private Bitmap picBitmap;
-    private Bitmap originPicBitmap;
     private boolean isShutterBitmapCopied = false;
 
     public static final int TYPE_UNKNOWN = -1;
@@ -81,12 +77,12 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
     private static final int INTENT_CODE_PICK_IMAGE = 100;
     private static final int TIME_SLEEP_INTERVAL = 50; // ms
 
-    String savedImagePath = "result.jpg";
     long timeElapsed = 0;
     long frameCounter = 0;
 
     // Call 'init' and 'release' manually later
     PaddleSegModel predictor = new PaddleSegModel();
+    private List<BaseResultModel> results = new ArrayList<>();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -120,6 +116,7 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
             case R.id.btn_shutter:
                 TYPE = BTN_SHUTTER;
                 shutterAndPauseCamera();
+                resultView.setAdapter(null);
                 break;
             case R.id.btn_settings:
                 startActivity(new Intent(SegmentationMainActivity.this, SegmentationSettingsActivity.class));
@@ -141,17 +138,29 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
                     intent.setType("image/*");
                     startActivityForResult(intent, INTENT_CODE_PICK_IMAGE);
                 }
+                resultView.setAdapter(null);
                 break;
             case R.id.back_in_result:
-                resultPageView.setVisibility(View.GONE);
-                cameraPageView.setVisibility(View.VISIBLE);
-                TYPE = REALTIME_DETECT;
-                isShutterBitmapCopied = false;
-                svPreview.onResume();
+                back();
                 break;
         }
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        back();
+    }
+
+    private void back() {
+        resultPageView.setVisibility(View.GONE);
+        cameraPageView.setVisibility(View.VISIBLE);
+        TYPE = REALTIME_DETECT;
+        isShutterBitmapCopied = false;
+        svPreview.onResume();
+        results.clear();
+    }
+
     private void shutterAndPauseCamera() {
         new Thread(new Runnable() {
             @Override
@@ -172,7 +181,7 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
                         seekbarText.setText(resultNum + "");
                         confidenceSeekbar.setProgress((int) (resultNum * 100));
                         if (shutterBitmap != null && !shutterBitmap.isRecycled()) {
-                            resultImage.setImageBitmap(shutterBitmap);
+                            detail(shutterBitmap);
                         } else {
                             new AlertDialog.Builder(SegmentationMainActivity.this)
                                     .setTitle("Empty Result!")
@@ -193,7 +202,6 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
         if (!ARGB8888ImageBitmap.isRecycled()) {
             synchronized (this) {
                 shutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                originShutterBitmap = ARGB8888ImageBitmap.copy(Bitmap.Config.ARGB_8888, true);
             }
             SystemClock.sleep(TIME_SLEEP_INTERVAL);
             isShutterBitmapCopied = true;
@@ -211,9 +219,10 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
                 confidenceSeekbar.setProgress((int) (resultNum * 100));
                 Uri uri = data.getData();
                 String path = getRealPathFromURI(this, uri);
-                picBitmap = decodeBitmap(path, 720, 1280);
-                originPicBitmap = picBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                resultImage.setImageBitmap(picBitmap);
+                Bitmap bitmap = decodeBitmap(path, 720, 1280);
+                picBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
+                SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
+                detail(picBitmap);
             }
         }
     }
@@ -244,27 +253,12 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
             copyBitmapFromCamera(ARGB8888ImageBitmap);
             return false;
         }
-
-        String savedImagePath = "";
-        synchronized (this) {
-            savedImagePath = Utils.getDCIMDirectory() + File.separator + "result.jpg";
-        }
-
         boolean modified = false;
-
         long tc = System.currentTimeMillis();
         SegmentationResult result = predictor.predict(ARGB8888ImageBitmap);
         timeElapsed += (System.currentTimeMillis() - tc);
-
         Visualize.visSegmentation(ARGB8888ImageBitmap, result);
-
         modified = result.initialized();
-        if (!savedImagePath.isEmpty()) {
-            synchronized (this) {
-                SegmentationMainActivity.this.savedImagePath = "result.jpg";
-            }
-        }
-
         frameCounter++;
         if (frameCounter >= 30) {
             final int fps = (int) (1000 / (timeElapsed / 30));
@@ -308,16 +302,8 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
 
     public void initView() {
         TYPE = REALTIME_DETECT;
-        // For front face camera and human seg, the smaller width and height
-        // may get both better result and performance. EXPECTED_PREVIEW_HEIGHT
-        // should be 'width' and EXPECTED_PREVIEW_WIDTH should be 'height' if
-        // your camera display orientation is rotate (degree == 90 || degree == 270).
-        // The transformation will auto process in camera.
-        CameraSurfaceView.EXPECTED_PREVIEW_HEIGHT = 360;
-        CameraSurfaceView.EXPECTED_PREVIEW_WIDTH = 720;
         svPreview = (CameraSurfaceView) findViewById(R.id.sv_preview);
         svPreview.setOnTextureChangedListener(this);
-        svPreview.switchCamera();  // switch to front camera for human seg
         tvStatus = (TextView) findViewById(R.id.tv_status);
         btnSwitch = (ImageButton) findViewById(R.id.btn_switch);
         btnSwitch.setOnClickListener(this);
@@ -338,16 +324,7 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
         backInResult.setOnClickListener(this);
         confidenceSeekbar = findViewById(R.id.confidence_seekbar);
         seekbarText = findViewById(R.id.seekbar_text);
-        detectResultView = findViewById(R.id.result_list_view);
-
-        List<BaseResultModel> results = new ArrayList<>();
-        // TODO: add model results from SegmentationResult instead of using fake data.
-        results.add(new BaseResultModel(1, "human", 1.0f));
-        results.add(new BaseResultModel(2, "human", 1.0f));
-        results.add(new BaseResultModel(3, "human", 1.0f));
-        final BaseResultAdapter adapter = new BaseResultAdapter(this, R.layout.facedet_result_page_item, results);
-        detectResultView.setAdapter(adapter);
-        detectResultView.invalidate();
+        resultView = findViewById(R.id.result_list_view);
 
         confidenceSeekbar.setMax(100);
         confidenceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@@ -358,6 +335,7 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
                 resultNum = bd.setScale(1, BigDecimal.ROUND_HALF_UP).floatValue();
                 seekbarText.setText(resultNum + "");
                 confidenceSeekbar.setProgress((int) (resultNum * 100));
+                results.clear();
             }
 
             @Override
@@ -367,32 +345,29 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
 
             @Override
             public void onStopTrackingTouch(SeekBar seekBar) {
-                runOnUiThread(new Runnable() {
-                    @Override
-                    public void run() {
-                        if (TYPE == ALBUM_SELECT) {
-                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
-                            if (!picBitmap.isRecycled()) {
-                                predictor.predict(picBitmap, true, resultNum);
-                                resultImage.setImageBitmap(picBitmap);
-                                picBitmap = originPicBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
-                        } else {
-                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
-                            if (!shutterBitmap.isRecycled()) {
-                                predictor.predict(shutterBitmap, true, resultNum);
-                                resultImage.setImageBitmap(shutterBitmap);
-                                shutterBitmap = originShutterBitmap.copy(Bitmap.Config.ARGB_8888, true);
-                            }
-                            resultNum = 1.0f;
-                        }
-                    }
-                });
+//                runOnUiThread(new Runnable() {
+//                    @Override
+//                    public void run() {
+//                        if (TYPE == ALBUM_SELECT) {
+//                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
+//                            detail(picBitmap);
+//                        } else {
+//                            SystemClock.sleep(TIME_SLEEP_INTERVAL * 10); // 500ms
+//                            svPreview.onPause();
+//                            detail(shutterBitmap);
+//                        }
+//                    }
+//                });
             }
         });
     }
 
+    private void detail(Bitmap bitmap) {
+        predictor.predict(bitmap, true, 0.6f);
+        resultImage.setImageBitmap(bitmap);
+        resultNum = 1.0f;
+    }
+
     @SuppressLint("ApplySharedPref")
     public void initSettings() {
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
@@ -448,32 +423,5 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
         return ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
                 && ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
     }
+
 }
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/Utils.java

@@ -16,12 +16,16 @@ import android.view.WindowManager;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.io.OutputStream;
+import java.util.ArrayList;
 import java.util.List;
 
 public class Utils {
@@ -286,4 +290,24 @@ public class Utils {
         }
         return result;
     }
+
+    public static List<String> readTxt(String txtPath) {
+        File file = new File(txtPath);
+        if (file.isFile() && file.exists()) {
+            try {
+                FileInputStream fileInputStream = new FileInputStream(file);
+                InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
+                BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
+                String text;
+                List<String> labels = new ArrayList<>();
+                while ((text = bufferedReader.readLine()) != null) {
+                    labels.add(text);
+                }
+                return labels;
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
 }

java/android/app/src/main/res/layout/classification_camera_page.xml

@@ -64,7 +64,7 @@
             android:layout_centerInParent="true" />
 
         <ImageView
-            android:id="@+id/albumSelect"
+            android:id="@+id/iv_select"
             android:layout_width="40dp"
             android:layout_height="40dp"
             android:layout_alignParentRight="true"

java/android/app/src/main/res/layout/detection_camera_page.xml

@@ -62,7 +62,7 @@
             android:layout_centerInParent="true" />
 
         <ImageView
-            android:id="@+id/albumSelect"
+            android:id="@+id/iv_select"
             android:layout_width="40dp"
             android:layout_height="40dp"
             android:layout_alignParentRight="true"

java/android/app/src/main/res/layout/ocr_camera_page.xml

@@ -47,14 +47,13 @@
                 <TextView
                     android:id="@+id/action_realtime_btn"
                     style="@style/action_btn"
-                    android:layout_width="300px"
+                    android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="@string/action_bar_realtime"
                     android:textAlignment="center" />
             </LinearLayout>
         </com.baidu.paddle.fastdeploy.app.ui.layout.ActionBarLayout>
 
-        <!--        实时-->
         <com.baidu.paddle.fastdeploy.app.ui.view.CameraSurfaceView
             android:id="@+id/sv_preview"
             android:layout_width="match_parent"
@@ -64,7 +63,7 @@
             android:layout_centerInParent="true" />
 
         <ImageView
-            android:id="@+id/albumSelect"
+            android:id="@+id/iv_select"
             android:layout_width="40dp"
             android:layout_height="40dp"
             android:layout_alignParentRight="true"