съемка при событии с несколькими касаниями

Я новичок в android. Я разрабатываю простое приложение для камеры (с использованием частей кода в Интернете). Я хочу, чтобы он сосредоточился на одном касании и сделал снимок с двумя пальцами. Фокусирующая часть отлично работает. но когда я делаю два пальца, приложение падает. вот отчет журнала.съемка при событии с несколькими касаниями

01-04 04:01:01.015: D/CamTest(8650): focused success 
01-04 04:01:07.343: D/CamTest(8650): focused success 
01-04 04:01:09.109: D/CamTest(8650): X0= 484.5 Y0=482.8125 
01-04 04:01:09.109: D/CamTest(8650): X1= 269.5 Y1=229.39453 
01-04 04:01:10.117: E/InputEventReceiver(8650): Exception dispatching input event. 
01-04 04:01:10.117: E/MessageQueue-JNI(8650): Exception in MessageQueue callback: handleReceiveCallback 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): java.lang.RuntimeException: takePicture failed 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.hardware.Camera.native_takePicture(Native Method) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.hardware.Camera.takePicture(Camera.java:1061) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.hardware.Camera.takePicture(Camera.java:1006) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.example.camera_overlay.MainActivity$4.onTouch(MainActivity.java:65) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.View.dispatchTouchEvent(View.java:7122) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1925) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1379) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.app.Activity.dispatchTouchEvent(Activity.java:2399) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1873) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.View.dispatchPointerEvent(View.java:7307) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3172) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3117) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4153) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4132) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4224) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.os.MessageQueue.nativePollOnce(Native Method) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.os.MessageQueue.next(MessageQueue.java:125) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.os.Looper.loop(Looper.java:124) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at android.app.ActivityThread.main(ActivityThread.java:4812) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at java.lang.reflect.Method.invokeNative(Native Method) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at java.lang.reflect.Method.invoke(Method.java:511) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
01-04 04:01:10.132: E/MessageQueue-JNI(8650): at dalvik.system.NativeStart.main(Native Method) 
01-04 04:01:10.132: D/AndroidRuntime(8650): Shutting down VM 
01-04 04:01:10.132: W/dalvikvm(8650): threadid=1: thread exiting with uncaught exception (group=0x40bcd300) 
01-04 04:01:10.164: E/AndroidRuntime(8650): FATAL EXCEPTION: main 
01-04 04:01:10.164: E/AndroidRuntime(8650): java.lang.RuntimeException: takePicture failed 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.hardware.Camera.native_takePicture(Native Method) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.hardware.Camera.takePicture(Camera.java:1061) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.hardware.Camera.takePicture(Camera.java:1006) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.example.camera_overlay.MainActivity$4.onTouch(MainActivity.java:65) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.View.dispatchTouchEvent(View.java:7122) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1925) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1379) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.app.Activity.dispatchTouchEvent(Activity.java:2399) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1873) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.View.dispatchPointerEvent(View.java:7307) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3172) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3117) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4153) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4132) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4224) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.os.MessageQueue.nativePollOnce(Native Method) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.os.MessageQueue.next(MessageQueue.java:125) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.os.Looper.loop(Looper.java:124) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at android.app.ActivityThread.main(ActivityThread.java:4812) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at java.lang.reflect.Method.invokeNative(Native Method) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at java.lang.reflect.Method.invoke(Method.java:511) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
01-04 04:01:10.164: E/AndroidRuntime(8650):  at dalvik.system.NativeStart.main(Native Method) 
01-04 04:01:10.257: D/dalvikvm(8650): GC_CONCURRENT freed 301K, 5% free 9450K/9863K, paused 7ms+5ms, total 95ms 
01-04 04:01:12.953: I/Process(8650): Sending signal. PID: 8650 SIG: 9

вот какая часть кода (насколько мне известно: /).

preview.setOnTouchListener(new OnTouchListener() { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       //get the Touch pointer count 

       int pointerCount = event.getPointerCount(); 
       int action=event.getAction() & MotionEvent.ACTION_MASK; 
       // if two fingers, take the picture and get the coordinates 
       if(pointerCount==2){ 


        if(action==MotionEvent.ACTION_POINTER_UP){ 


         int pointerIndex0 = event.findPointerIndex(event.getPointerId(0)); 
         // Get the 1st pointer's current position 
         float x0 = event.getX(pointerIndex0); 
         float y0 = event.getY(pointerIndex0); 
         Log.d(TAG, "X0= "+x0 + " Y0=" + y0); 
         int pointerIndex1 = event.findPointerIndex(event.getPointerId(1)); 
         // Get the 2nd pointer's current position 
         float x1 = event.getX(pointerIndex1); 
         float y1 = event.getY(pointerIndex1); 
         Log.d(TAG, "X1= "+x1 + " Y1=" + y1); 

         if (safeToTakePicture) { 
          safeToTakePicture = false; 
          preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback); 

         } 

        } 

        //preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback); 
        prvw=0; 

       } 


       //else, focus only 
       else if(pointerCount==1 && action==MotionEvent.ACTION_DOWN){ 

        preview.camera.autoFocus(new AutoFocusCallback() { 

         public void onAutoFocus(boolean success, Camera camera) { 
          if(success){ 
           Log.d(TAG,"focused success"); 
          } 
         } 
        }); 


       }    
       return true; 
      } 



     }); 

     Log.d(TAG, "onCreate'd"); 
    } 
    @Override 
    public void onBackPressed() 
    { 
     if(prvw==1) 
      finish(); 
     else 
      onCreate(null); 
    } 
    public void onResume(){ 

     onCreate(null); 
    } 

    ShutterCallback shutterCallback = new ShutterCallback() { 
     public void onShutter() { 
      Log.d(TAG, "onShutter'd"); 
     } 
    }; 

    /** Handles data for raw picture */ 
    PictureCallback rawCallback = new PictureCallback() { 
     public void onPictureTaken(byte[] data, Camera camera) { 
      Log.d(TAG, "onPictureTaken - raw"); 
     } 
    }; 

    /** Handles data for jpeg picture */ 
    PictureCallback jpegCallback = new PictureCallback() { 
     public void onPictureTaken(byte[] data, Camera camera) { 
      FileOutputStream outStream = null; 
      try { 


       //create the directory 
       String state = Environment.getExternalStorageDirectory().getPath()+"/CamOverlay"; 

       File folder = new File(state); 
       boolean success = true; 
       if (!folder.exists()) { 
        success = folder.mkdirs(); 
       } 
       if(!success) 
        Log.d(TAG,"directory creation failed"); 

       // write to local sandbox file system 
       // outStream = 
       // System.currentTimeMillis()), 0); 
       // Or write to sdcard 

       outStream = new FileOutputStream(String.format(state+"/%d.jpg", System.currentTimeMillis())); 

       outStream.write(data); 

       outStream.close(); 

       Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length); 
      } catch (FileNotFoundException e) { 
       e.printStackTrace(); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } finally { 
      } 
      Log.d(TAG, "onPictureTaken - jpeg"); 
      safeToTakePicture=true; 
     } 
    }; 

}

Может кто-нибудь, пожалуйста, объясните мне, что случилось, и как это исправить? Спасибо в продвинутом .. :)

источник

2014-10-23 udakarajd

Что такое линия 65? – Nabin

Пожалуйста, оставьте свой комментарий, указав строку 65 на свой код – Nabin

@Nabin preview.camera.takePicture (shutterCallback, rawCallback, jpegCallback); находится на линии 65 – udakarajd

Я прояснил это ... :) Если у кого-то такая же проблема, я укажу на свою ошибку.

Я использовал «действие касания касания» на событии одно касания и «действие второго пальца вверх» на событии multi_touch. если пользователь сделал двойной щелчок пальцем, камера пытается выполнить как работу, так и приложение сработает.

источник

2014-10-27 09:42:43 udakarajd

съемка при событии с несколькими касаниями

ответ

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