diff --git a/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/detection/DetectionMainActivity.java b/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/detection/DetectionMainActivity.java
index dbb76df83..127711767 100644
--- a/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/detection/DetectionMainActivity.java
+++ b/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/detection/DetectionMainActivity.java
@@ -305,6 +305,8 @@ public class DetectionMainActivity extends Activity implements View.OnClickListe
         // Open camera until the permissions have been granted
         if (!checkAllPermissions()) {
             svPreview.disableCamera();
+        } else {
+            svPreview.enableCamera();
         }
         svPreview.onResume();
     }
diff --git a/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java b/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
index 94a5fdbd0..14217181d 100644
--- a/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
+++ b/examples/vision/detection/paddledetection/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
@@ -278,6 +278,10 @@ public class CameraSurfaceView extends GLSurfaceView implements Renderer,
         disableCamera = true;
     }
 
+    public void enableCamera() {
+        disableCamera = false;
+    }
+
     public void switchCamera() {
         releaseCamera();
         selectedCameraId = (selectedCameraId + 1) % numberOfCameras;
diff --git a/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/facedet/FaceDetMainActivity.java b/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/facedet/FaceDetMainActivity.java
index 169c09cd0..8397531c8 100644
--- a/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/facedet/FaceDetMainActivity.java
+++ b/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/facedet/FaceDetMainActivity.java
@@ -300,6 +300,8 @@ public class FaceDetMainActivity extends Activity implements View.OnClickListene
         // Open camera until the permissions have been granted
         if (!checkAllPermissions()) {
             svPreview.disableCamera();
+        } else {
+            svPreview.enableCamera();
         }
         svPreview.onResume();
     }
diff --git a/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java b/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
index 94a5fdbd0..14217181d 100644
--- a/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
+++ b/examples/vision/facedet/scrfd/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
@@ -278,6 +278,10 @@ public class CameraSurfaceView extends GLSurfaceView implements Renderer,
         disableCamera = true;
     }
 
+    public void enableCamera() {
+        disableCamera = false;
+    }
+
     public void switchCamera() {
         releaseCamera();
         selectedCameraId = (selectedCameraId + 1) % numberOfCameras;
diff --git a/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/segmentation/SegmentationMainActivity.java b/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/segmentation/SegmentationMainActivity.java
index 08ecda611..88b3c3a5b 100644
--- a/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/segmentation/SegmentationMainActivity.java
+++ b/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/examples/segmentation/SegmentationMainActivity.java
@@ -287,6 +287,8 @@ public class SegmentationMainActivity extends Activity implements View.OnClickLi
         // Open camera until the permissions have been granted
         if (!checkAllPermissions()) {
             svPreview.disableCamera();
+        } else {
+            svPreview.enableCamera();
         }
         svPreview.onResume();
     }
diff --git a/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java b/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
index 94a5fdbd0..14217181d 100644
--- a/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
+++ b/examples/vision/segmentation/paddleseg/android/app/src/main/java/com/baidu/paddle/fastdeploy/app/ui/view/CameraSurfaceView.java
@@ -278,6 +278,10 @@ public class CameraSurfaceView extends GLSurfaceView implements Renderer,
         disableCamera = true;
     }
 
+    public void enableCamera() {
+        disableCamera = false;
+    }
+
     public void switchCamera() {
         releaseCamera();
         selectedCameraId = (selectedCameraId + 1) % numberOfCameras;