[Android] add VoiceAssistant app example (#834)

* [Android]add VoiceAssistant.

* Create VoiceAssistantDemo

* Update and rename VoiceAssistantDemo to VoiceAssistantDemo.md

* Update VoiceAssistantDemo.md

* Delete VoiceAssistantDemo.md

* [Android]1.delete about core folder.
2.build and configure bdasr_V3_20210628_cfe8c44.aar file.

* change app/build.gradle etc.

* Update build.gradle

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

java/android/app/build.gradle

@@ -5,7 +5,7 @@ android {
 
     defaultConfig {
         applicationId 'com.baidu.paddle.fastdeploy.app.examples'
-        minSdkVersion 15
+        minSdkVersion 16
         //noinspection ExpiredTargetSdkVersion
         targetSdkVersion 28
         versionCode 1
@@ -79,6 +79,10 @@ def FD_JAVA_SDK = [
         [
                 'src' : 'https://bj.bcebos.com/fastdeploy/test/fastdeploy-android-sdk-latest-dev.aar',
                 'dest': 'libs'
+        ],
+        [
+                'src' : 'https://bj.bcebos.com/fastdeploy/test/bdasr_V3_20210628_cfe8c44.aar',
+                'dest': 'libs'
         ]
 ]
 
@@ -132,7 +136,7 @@ task downloadAndExtractSDKs(type: DefaultTask) {
             boolean copyFiles = false
             if (!file("${sdk.dest}/${sdkName}").exists()) {
                 // Download the target SDK if not exists
-                if (file("${cachePath}/${sdkName}").exists()) {
+                if (!file("${cachePath}/${sdkName}").exists()) {
                     println "[INFO] Downloading ${sdk.src} -> ${cachePath}/${sdkName}"
                     ant.get(src: sdk.src, dest: file("${cachePath}/${sdkName}"))
                 }

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/ernie/applications/VoiceAssistantMainActivity.java

@@ -0,0 +1,211 @@
+package com.baidu.paddle.fastdeploy.app.examples.ernie.applications;
+
+import static com.baidu.paddle.fastdeploy.ui.Utils.isNetworkAvailable;
+
+import android.Manifest;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.Log;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.baidu.aip.asrwakeup3.core.mini.AutoCheck;
+import com.baidu.aip.asrwakeup3.core.util.AuthUtil;
+import com.baidu.paddle.fastdeploy.app.examples.R;
+import com.baidu.speech.EventListener;
+import com.baidu.speech.EventManager;
+import com.baidu.speech.EventManagerFactory;
+import com.baidu.speech.asr.SpeechConstant;
+
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+public class VoiceAssistantMainActivity extends Activity implements View.OnClickListener, EventListener {
+    private Button startVoiceBtn;
+    private TextView voiceOutput;
+    private Button startIntentBtn;
+    private TextView intentOutput;
+    private ImageView back;
+    private EventManager asr;
+    private Boolean isStartVoice = false;
+    private String voiceTxt = "";
+    private int times = 0;
+    private final int REQUEST_PERMISSION = 0;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        // Fullscreen
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
+
+        setContentView(R.layout.voice_assistant_activity_main);
+
+        init();
+    }
+
+    private void init() {
+        checkPermission();
+        asr = EventManagerFactory.create(this, "asr");
+        asr.registerListener(this);
+        startVoiceBtn = findViewById(R.id.btn_voice);
+        startVoiceBtn.setOnClickListener(this);
+        voiceOutput = findViewById(R.id.tv_voice_output);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        startIntentBtn = findViewById(R.id.btn_intent);
+        startIntentBtn.setOnClickListener(this);
+        intentOutput = findViewById(R.id.tv_intent_output);
+    }
+
+    @Override
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.btn_voice:
+                if (!isNetworkAvailable(this)) {
+                    new AlertDialog.Builder(VoiceAssistantMainActivity.this)
+                            .setMessage("请先连接互联网。")
+                            .setCancelable(true)
+                            .show();
+                    return;
+                }
+                if (!isStartVoice) {
+                    isStartVoice = true;
+                    startVoiceBtn.setText("停止录音");
+                    start();
+                } else {
+                    isStartVoice = false;
+                    startVoiceBtn.setText("开始录音");
+                    stop();
+                }
+                break;
+            case R.id.iv_back:
+                finish();
+                break;
+            case R.id.btn_intent:
+                if (voiceTxt.equals("")) {
+                    new AlertDialog.Builder(VoiceAssistantMainActivity.this)
+                            .setMessage("请先录音。")
+                            .setCancelable(true)
+                            .show();
+                    return;
+                }
+                intentOutput.setText("我刚才说了：" + voiceTxt);
+                break;
+        }
+    }
+
+    @Override
+    public void onEvent(String name, String params, byte[] data, int offset, int length) {
+        if (name.equals(SpeechConstant.CALLBACK_EVENT_ASR_PARTIAL)) {
+            if (params.contains("\"final_result\"")) {
+                if (params.contains("[")) {
+                    voiceTxt = params.substring(params.lastIndexOf('[') + 1, params.lastIndexOf(']'));
+                }
+                voiceOutput.setText(voiceTxt);
+            }
+        }
+    }
+
+    private void start() {
+        Map<String, Object> params = AuthUtil.getParam();
+        String event = null;
+        event = SpeechConstant.ASR_START;
+        params.put(SpeechConstant.ACCEPT_AUDIO_VOLUME, false);
+        (new AutoCheck(getApplicationContext(), new Handler() {
+            public void handleMessage(Message msg) {
+                if (msg.what == 100) {
+                    AutoCheck autoCheck = (AutoCheck) msg.obj;
+                    synchronized (autoCheck) {
+                        String message = autoCheck.obtainErrorMessage();
+                        Log.e(getClass().getName(), message);
+                    }
+                }
+            }
+        }, false)).checkAsr(params);
+        String json = null;
+        json = new JSONObject(params).toString();
+        asr.send(event, json, null, 0, 0);
+    }
+
+    private void stop() {
+        asr.send(SpeechConstant.ASR_STOP, null, null, 0, 0);
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        asr.send(SpeechConstant.ASR_CANCEL, "{}", null, 0, 0);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        asr.send(SpeechConstant.ASR_CANCEL, "{}", null, 0, 0);
+        asr.unregisterListener(this);
+    }
+
+    private void checkPermission() {
+        times++;
+        final List<String> permissionsList = new ArrayList<>();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            if ((checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED))
+                permissionsList.add(Manifest.permission.RECORD_AUDIO);
+            if ((checkSelfPermission(Manifest.permission.ACCESS_NETWORK_STATE) != PackageManager.PERMISSION_GRANTED))
+                permissionsList.add(Manifest.permission.ACCESS_NETWORK_STATE);
+            if ((checkSelfPermission(Manifest.permission.INTERNET) != PackageManager.PERMISSION_GRANTED)) {
+                permissionsList.add(Manifest.permission.INTERNET);
+            }
+            if ((checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {
+                permissionsList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
+            }
+            if (permissionsList.size() != 0) {
+                if (times == 1) {
+                    requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
+                            REQUEST_PERMISSION);
+                } else {
+                    new AlertDialog.Builder(this)
+                            .setCancelable(true)
+                            .setTitle("提示")
+                            .setMessage("获取不到授权，APP将无法正常使用，请允许APP获取权限！")
+                            .setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                                @Override
+                                public void onClick(DialogInterface arg0, int arg1) {
+                                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                                        requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
+                                                REQUEST_PERMISSION);
+                                    }
+                                }
+                            }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                                @Override
+                                public void onClick(DialogInterface arg0, int arg1) {
+                                    finish();
+                                }
+                            }).show();
+                }
+            }
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        checkPermission();
+    }
+}

java/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/ernie/applications/VoiceAssistantWelcomeActivity.java

@@ -0,0 +1,30 @@
+package com.baidu.paddle.fastdeploy.app.examples.ernie.applications;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.view.View;
+
+import com.baidu.paddle.fastdeploy.app.examples.R;
+
+public class VoiceAssistantWelcomeActivity extends Activity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
+            getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+            );
+            getWindow().setStatusBarColor(Color.TRANSPARENT);
+        }
+        setContentView(R.layout.voice_assistant_welcome);
+    }
+
+    public void startActivity(View view) {
+        Intent intent = new Intent(VoiceAssistantWelcomeActivity.this, VoiceAssistantMainActivity.class);
+        startActivity(intent);
+    }
+}

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

@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <com.baidu.paddle.fastdeploy.ui.layout.ActionBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <ImageView
+            android:id="@+id/iv_back"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:cropToPadding="true"
+            android:paddingLeft="40px"
+            android:paddingTop="60px"
+            android:paddingRight="60px"
+            android:paddingBottom="40px"
+            android:src="@drawable/back_btn" />
+
+        <TextView
+            style="@style/action_btn"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerHorizontal="true"
+            android:layout_marginTop="50px"
+            android:text="@string/voice_assistant_app_name"
+            android:textSize="15sp" />
+    </com.baidu.paddle.fastdeploy.ui.layout.ActionBarLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <Button
+            android:id="@+id/btn_voice"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="开始录音" />
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:layout_marginTop="20dp"
+            android:layout_marginRight="20dp"
+            android:text="语音转文字结果：" />
+
+        <TextView
+            android:id="@+id/tv_voice_output"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:layout_marginTop="10dp"
+            android:layout_marginRight="20dp"
+            android:textColor="@android:color/black"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btn_intent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_marginTop="20dp"
+            android:text="开始意图识别" />
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:layout_marginTop="20dp"
+            android:layout_marginRight="20dp"
+            android:text="意图识别结果：" />
+
+        <TextView
+            android:id="@+id/tv_intent_output"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:layout_marginTop="10dp"
+            android:layout_marginRight="20dp"
+            android:textColor="@android:color/black"
+            android:textSize="20sp" />
+    </LinearLayout>
+</LinearLayout>

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

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:scaleType="centerCrop"
+        android:background="@drawable/main_bk"
+        />
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TextView
+            android:id="@+id/model_text"
+            android:layout_width="320dp"
+            android:layout_height="wrap_content"
+            android:layout_centerHorizontal="true"
+            android:layout_marginTop="120dp"
+            android:background="@color/colorStartBtn"
+            android:gravity="center"
+            android:text="VoiceAssistant"
+            android:textColor="@color/colorTextWrite"
+            android:textSize="30sp" />
+
+        <TextView
+            android:id="@+id/baidu"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/model_text"
+            android:layout_centerHorizontal="true"
+            android:layout_marginTop="20dp"
+            android:text="百度FastDeploy"
+            android:textColor="@color/colorTextWrite"
+            android:textSize="22sp" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/baidu"
+            android:layout_centerHorizontal="true"
+            android:layout_marginTop="10dp"
+            android:text="Powered by EasyEdge"
+            android:textColor="@color/colorTextWrite"
+            android:textSize="18sp" />
+
+        <Button
+
+            android:id="@+id/start_ui_activity"
+            android:layout_width="200dp"
+            android:layout_height="50dp"
+            android:layout_alignParentBottom="true"
+            android:layout_centerHorizontal="true"
+            android:layout_marginBottom="70dp"
+            android:background="@drawable/round_corner_btn"
+            android:text="@string/start_ui_activity"
+            android:textColor="@color/colorTextWrite"
+            android:textSize="22sp"
+            android:onClick="startActivity"/>
+
+        <ImageView
+            android:id="@+id/logo"
+            android:layout_width="95dp"
+            android:layout_height="30dp"
+            android:layout_alignParentBottom="true"
+            android:layout_centerHorizontal="true"
+            android:layout_marginBottom="10dp"
+            android:background="@drawable/paddle_logo"
+            android:scaleType="centerCrop" />
+    </RelativeLayout>
+</FrameLayout>

java/android/ui/src/main/AndroidManifest.xml

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.baidu.paddle.fastdeploy.ui">
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 </manifest>

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

@@ -6,6 +6,8 @@ import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.hardware.Camera;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
 import android.net.Uri;
 import android.opengl.GLES20;
 import android.os.Environment;
@@ -310,4 +312,28 @@ public class Utils {
         }
         return null;
     }
+
+    public static boolean isNetworkAvailable(final Context context) {
+        boolean hasWifoCon = false;
+        boolean hasMobileCon = false;
+
+        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE);
+        NetworkInfo[] netInfos = cm.getAllNetworkInfo();
+        for (NetworkInfo net : netInfos) {
+
+            String type = net.getTypeName();
+            if (type.equalsIgnoreCase("WIFI")) {
+                if (net.isConnected()) {
+                    hasWifoCon = true;
+                }
+            }
+
+            if (type.equalsIgnoreCase("MOBILE")) {
+                if (net.isConnected()) {
+                    hasMobileCon = true;
+                }
+            }
+        }
+        return hasWifoCon || hasMobileCon;
+    }
 }