Android veraltete Kamera Problem

Question

Meine App verwendet android.hardware.camera Klasse. Die Klasse war veraltet, und selbst wenn die App auf Android 5.0+ funktioniert, wenn der Client es unter Android 7.0 der App-Absturz installiert.

Ich finde ähnliche Fragen (Use of camera2 versus deprecated Camera - what is best practice?), aber es gibt keine Antwort auf meine spezifische Frage.

Da die App bereits fertig ist und die Kamera nicht das essentielle Feature ist. Gibt es eine Möglichkeit, diesen Absturz zu vermeiden und die alte Kameraklasse beizubehalten?

Crash:

java.lang.RuntimeException: 
    at android.hardware.Camera.<init>(Camera.java:519) 
    at android.hardware.Camera.open(Camera.java:379) 
    at info.blacktrail.catedral.Camaracap.onResume(Camaracap.java:216) 
    at android.support.v4.app.Fragment.performResume(Fragment.java:2235) 
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1346) 
    at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528) 
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1595) 
    at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:757) 
    at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2355) 
    at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2146) 
    at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2098) 
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2008) 
    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:710) 
    at android.os.Handler.handleCallback(Handler.java:751) 
    at android.os.Handler.dispatchMessage(Handler.java:95) 
    at android.os.Looper.loop(Looper.java:154) 
    at android.app.ActivityThread.main(ActivityThread.java:6776) 
    at java.lang.reflect.Method.invoke(Native Method:0) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410) 

Fragment:

public class Cameracap extends Fragment implements View.OnClickListener { 

ProgressDialog mProgressDialog; 
private SurfaceView preview = null; 
private SurfaceHolder previewHolder = null; 
private Camera camera = null; 
private boolean inPreview = false; 
private FrameLayout camera_preview; 

ImageView image, captured_image,image_frame,imageshare,imagetakepic; 
Bitmap bmp; 
static Bitmap mutableBitmap; 
File imageFileName = null; 

private MediaScannerConnection msConn; 
ProgressDialog dialog; 

FragmentManager mFragmentManager; 




@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    View rootView = inflater.inflate(R.layout.cameraselfie, container, false); 

    ContextCompat.checkSelfPermission(getActivity(),Manifest.permission.CAMERA); 



    image = (ImageView) rootView.findViewById(R.id.image); 

    imageshare= (ImageView) rootView.findViewById(R.id.imageshare); 
    imagetakepic= (ImageView) rootView.findViewById(R.id.imagetakepic); 


    image_frame = (ImageView) rootView.findViewById(R.id.imageView18); 





    captured_image = (ImageView) rootView.findViewById(R.id.captured_image); 
    preview = (SurfaceView) rootView.findViewById(R.id.surface_cam); 
    camera_preview = (FrameLayout) rootView.findViewById(R.id.camera_preview); 




    previewHolder = preview.getHolder(); 
    previewHolder.addCallback(surfaceCallback); 
    previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 

    previewHolder.setFixedSize(getActivity().getWindow().getWindowManager() 
      .getDefaultDisplay().getWidth(), getActivity().getWindow().getWindowManager() 
      .getDefaultDisplay().getHeight()); 


    final Button captureButton = (Button) rootView.findViewById(R.id.foto); 
    final Button share_image = (Button) rootView.findViewById(R.id.shareface); 
    captureButton.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      imageshare.setVisibility(View.VISIBLE); 
      share_image.setVisibility(View.VISIBLE); 
      imagetakepic.setVisibility(View.GONE); 
      captureButton.setVisibility(View.GONE); 


      capture(); 
     } 
    }); 


    share_image.setOnClickListener(new View.OnClickListener() { 




     @Override 
     public void onClick(View v) { 
      imageshare.setVisibility(View.GONE); 
      share_image.setVisibility(View.GONE); 
      imagetakepic.setVisibility(View.VISIBLE); 
      captureButton.setVisibility(View.VISIBLE); 


      new Title().execute(); 

     } 
    }); 

    Button button_back=(Button)rootView.findViewById(R.id.button_back); 


    button_back.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      mFragmentManager = getActivity().getSupportFragmentManager(); 

      android.support.v4.app.FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); 
      fragmentTransaction.replace(R.id.contenedor_principal,new FragmentoInicio()).commit(); 
     } 
    }); 

    Button emergencia=(Button)rootView.findViewById(R.id.button_sos); 
    emergencia.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      mFragmentManager = getActivity().getSupportFragmentManager(); 

      android.support.v4.app.FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); 
      fragmentTransaction.replace(R.id.contenedor_principal,new Emergencia()).commit(); 

     } 
    }); 

    Button buttoncam=(Button)rootView.findViewById(R.id.buttoncam); 
    buttoncam.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      mFragmentManager = getActivity().getSupportFragmentManager(); 

      android.support.v4.app.FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); 
      fragmentTransaction.replace(R.id.contenedor_principal,new Camera2BasicFragment()).commit(); 

     } 
    }); 


    Button configbut=(Button)rootView.findViewById(R.id.button_config); 
    configbut.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 



     } 
    }); 

    return rootView; 
} 


@Override 
public void onResume() { 
    super.onResume(); 
    camera = Camera.open(); 
} 

@Override 
public void onPause() { 
    if (inPreview) { 
     camera.stopPreview(); 
    } 

    camera.release(); 
    camera = null; 
    inPreview = false; 
    super.onPause(); 
} 

private Camera.Size getBestPreviewSize(int width, int height, Camera.Parameters parameters) { 
    Camera.Size result = null; 
    for (Camera.Size size : parameters.getSupportedPreviewSizes()) { 
     if (size.width <= width && size.height <= height) { 
      if (result == null) { 
       result = size; 
      } else { 
       int resultArea = result.width * result.height; 
       int newArea = size.width * size.height; 
       if (newArea > resultArea) { 
        result = size; 
       } 
      } 
     } 
    } 
    return (result); 
} 

SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() { 
    public void surfaceCreated(SurfaceHolder holder) { 
     try { 
      camera.setPreviewDisplay(previewHolder); 
     } catch (Throwable t) { 

      Toast.makeText(getActivity(), t.getMessage(), Toast.LENGTH_LONG) 
        .show(); 
     } 
    } 

    public void surfaceChanged(SurfaceHolder holder, 
           int format, int width, 
           int height) { 
     Camera.Parameters parameters = camera.getParameters(); 
     Camera.Size size = getBestPreviewSize(width, height, 
       parameters); 

     if (size != null) { 
      parameters.setPreviewSize(size.width, size.height); 
      camera.setParameters(parameters); 
      camera.setDisplayOrientation(90); 
      camera.startPreview(); 
      inPreview = true; 
     } 
    } 

    public void surfaceDestroyed(SurfaceHolder holder) { 
     // no-op 
    } 
}; 


Camera.PictureCallback photoCallback = new Camera.PictureCallback() { 
    public void onPictureTaken(final byte[] data, final Camera camera) { 
     dialog = ProgressDialog.show(getActivity(), "", "Guardando foto"); 
     new Thread() { 
      public void run() { 
       try { 
        Thread.sleep(1000); 
       } catch (Exception ex) { 
       } 
       onPictureTake(data, camera); 
      } 
     }.start(); 
    } 
}; 


public void onPictureTake(byte[] data, Camera camera) { 

    bmp = BitmapFactory.decodeByteArray(data, 0, data.length); 
    mutableBitmap = bmp.copy(Bitmap.Config.ARGB_8888, true); 
    savePhoto(mutableBitmap); 

    dialog.dismiss(); 

} 






public void savePhoto(Bitmap bmp) { 

    FileOutputStream out = null; 

    try { 
     out = new FileOutputStream("/sdcard/" 
       + "catedralselfie" 
       + ".jpg"); 
     bmp.compress(Bitmap.CompressFormat.JPEG, 100, out); 
     out.flush(); 
     out.close(); 
     scanPhoto(imageFileName.toString()); 
     out = null; 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
} 



public void scanPhoto(final String imageFileName) { 
    msConn = new MediaScannerConnection(getActivity(), new MediaScannerConnection.MediaScannerConnectionClient() { 
     public void onMediaScannerConnected() { 
      msConn.scanFile(imageFileName, null); 

     } 

     public void onScanCompleted(String path, Uri uri) { 
      msConn.disconnect(); 

     } 
    }); 
    msConn.connect(); 
} 


public void capture() { 
    Log.e("onBack :", "yes"); 
    camera.takePicture(null, null, photoCallback); 
    inPreview = false; 
} 

@Override 
public void onClick(View v) { 

} 



// Title AsyncTask 
private class Title extends AsyncTask<Void, Void, Void> { 

    Drawable drawable; 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     mProgressDialog = new ProgressDialog(getActivity()); 
     mProgressDialog.setTitle("Cerro Catedral"); 
     mProgressDialog.setMessage("cargando datos..."); 
     mProgressDialog.setIndeterminate(false); 
     mProgressDialog.show(); 
    } 

    @Override 
    protected Void doInBackground(Void... params) { 
     Elements elements, elements1, elements2; 

     File imgFile = new File("/sdcard/catedralselfie.jpg"); 

     if (imgFile.exists()) { 

      Bitmap myBitmap2 = BitmapFactory.decodeFile(imgFile.getAbsolutePath()); 

      Matrix matrix = new Matrix(); 
      matrix.postRotate(90); 
      Bitmap rotatedBitmap = Bitmap.createBitmap(myBitmap2 , 0, 0, myBitmap2.getWidth(), myBitmap2.getHeight(), matrix, true); 
      drawable = new BitmapDrawable(getResources(), rotatedBitmap); 



     } 

     return null; 
    } 

    @Override 
    protected void onPostExecute(Void result) { 


     image_frame.setBackground(drawable); 

     shareintento(); 
     mProgressDialog.dismiss(); 

    } 



} 


protected void shareintento() { 


    camera_preview.setDrawingCacheEnabled(true); 

    camera_preview.buildDrawingCache(); 

    Bitmap bitmap = camera_preview.getDrawingCache(); 

    try { 
     FileOutputStream out = new FileOutputStream("/sdcard/" 
       + "catedralselfie2" 
       + ".jpg"); 
     bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 


    File file = new File("/sdcard/catedralselfie2.jpg"); 

    Intent shareIntent = new Intent(); 
    shareIntent.setAction(Intent.ACTION_SEND); 
    String _text = "#CatedralSelfie #MiSelfieEnCatedral #CatedralInvierno #Bariloche @CerroCatedralok"; 


    shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(String.valueOf(file)))); //optional//use this when you want to send an image 


    shareIntent = new Intent(); 
    shareIntent.setAction(Intent.ACTION_SEND); 
    shareIntent.putExtra(Intent.EXTRA_TEXT, (CharSequence) _text); 
    shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File("/sdcard/catedralselfie2.jpg"))); //optional//use this when you want to send an image 
    shareIntent.setType("image/jpeg"); 
    shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 
    startActivity(Intent.createChooser(shareIntent, "send")); 


    mFragmentManager = getActivity().getSupportFragmentManager(); 

    android.support.v4.app.FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); 
    fragmentTransaction.replace(R.id.contenedor_principal,new FragmentoInicio()).commit(); 


} 

}

Answer 1

Ihr Stack-Trace zeigt, dass Ihre Anwendung ruft Cameta.open() von Fragment.onResume Verfahren auf dem Haupt-Ui-Thread . Dies allein kann RuntimeException auf Android 7 verursachen, wodurch die Ausführung zeitaufwendiger Vorgänge auf dem UI-Thread noch stärker eingeschränkt wird. Eine andere Ursache könnten die Berechtigungen sein: Sie müssen keine vollständigen Laufzeitberechtigungen implementieren, wenn Ihre Ziel-API weniger als 21 ist. Ihr Code muss jedoch darauf vorbereitet sein, den Fall zu behandeln, wenn die Kameraberechtigung widerrufen wird Zeit.

Möglicherweise gibt es andere Probleme mit Ihrem Kamera-Code, bitte teilen Sie ihn für weitere Analysen.

Answer 2

Verwenden Sie diesen Code für die Bilderfassung ...

static final int REQUEST_IMAGE_CAPTURE1 = 80;

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE1); 

    @Override 
public void onActivityResult(int requestCode, int resultCode, Intent intent1) { 
    super.onActivityResult(requestCode, resultCode, intent1); 

    if (requestCode == REQUEST_IMAGE_CAPTURE1) { 
     // Handle scan intent 

     System.out.println("requestCode " + requestCode); 
     System.out.println("resultCode " + resultCode); 
     // System.out.println("intent "+intent1.getExtras()); 

     try { 
      Bitmap thumbnail = (Bitmap) intent1.getExtras().get("data"); 
      //3 
      ByteArrayOutputStream bytes = new ByteArrayOutputStream(); 
      thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, bytes); 
      //4 
      String timeStamp = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()); 
      final File file = new File(Environment.getExternalStorageDirectory()+File.separator +"1"+ "_" + "2"+"_"+"3"+"_" + timeStamp +".jpg"); 
      try { 
       file.createNewFile(); 
       FileOutputStream fo = new FileOutputStream(file); 
       //5 
       fo.write(bytes.toByteArray()); 
       fo.close(); 
      } catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

      if (resultCode == RESULT_OK) { 

       System.out.println("photoFile" + file);       
       } 
      } 
     } 
     catch (Exception e) 
     { 

     } 
    } 
    }