Android에서 MotionEvent.ACTION_MOVE가 작동하지 않습니다.

Question

내 안드로이드 앱에 자르기 이미지가 있습니다. 따라서 CropBox을 확장하여 ImageView으로 프로그래밍합니다. 자르기 상자를 이동하고 크기를 조정하고 싶습니다. OnTouchListener을 사용하지만 MotionEvent.ACTION_MOVE가 작동하지 않습니다. 나는 그것을 google하지만 나는 아무것도 잡지 않는다.

Attr의 등급 :

public class Attr { 

    public static final float CROP_BOX_START_X = 5; 
    public static final float CROP_BOX_START_Y = 5; 
    public static final float CROP_BOX_END_X = 305; 
    public static final float CROP_BOX_END_Y = 105; 

} 

CropBox 등급 :

public class CropBox extends ImageView { 

    private Paint paint = new Paint(); 


    public CropBox(Context context) { 
     super(context); 
    } 

    public CropBox(Context context, AttributeSet attributeSet) { 
     super(context, attributeSet); 
    } 


    @Override 
    public void onDraw(Canvas canvas) { 
     float[][] circleXY = { 
      {Attr.CROP_BOX_START_X, Attr.CROP_BOX_START_Y}, 
      {(Attr.CROP_BOX_START_X + Attr.CROP_BOX_END_X)/2, Attr.CROP_BOX_START_Y}, 
      {Attr.CROP_BOX_END_X, Attr.CROP_BOX_START_Y}, 
      {Attr.CROP_BOX_START_X, Attr.CROP_BOX_END_Y}, 
      {(Attr.CROP_BOX_START_X + Attr.CROP_BOX_END_X)/2, Attr.CROP_BOX_END_Y}, 
      {Attr.CROP_BOX_END_X, Attr.CROP_BOX_END_Y}, 
      {Attr.CROP_BOX_START_X, (Attr.CROP_BOX_START_Y + Attr.CROP_BOX_END_Y)/2}, 
      {Attr.CROP_BOX_END_X, (Attr.CROP_BOX_START_Y + Attr.CROP_BOX_END_Y)/2} 
     }; 
     float[][] lineXY = { 
      {Attr.CROP_BOX_START_X, Attr.CROP_BOX_START_Y, Attr.CROP_BOX_END_X, Attr.CROP_BOX_START_Y}, 
      {Attr.CROP_BOX_START_X, Attr.CROP_BOX_END_Y, Attr.CROP_BOX_END_X, Attr.CROP_BOX_END_Y}, 
      {Attr.CROP_BOX_START_X, Attr.CROP_BOX_START_Y, Attr.CROP_BOX_START_X, Attr.CROP_BOX_END_Y}, 
      {Attr.CROP_BOX_END_X, Attr.CROP_BOX_START_Y, Attr.CROP_BOX_END_X, Attr.CROP_BOX_END_Y} 
     }; 

     paint.setColor(Color.CYAN); 
     paint.setStrokeWidth(1); 

     for(int i = 0 ; i < circleXY.length ; i++) 
      canvas.drawCircle(circleXY[i][0], circleXY[i][1], 5, paint); 

     paint.setStrokeWidth(2); 

     for(int i = 0 ; i < lineXY.length ; i++) 
      canvas.drawLine(lineXY[i][0], lineXY[i][1], lineXY[i][2], lineXY[i][3], paint); 
    } 

} 

CropTestActivity 등급 :

public class CropTestActivity extends Activity { 

    private ImageView imageView; 
    private CropBox cropBorder; 
    private RelativeLayout relativeLayout; 
    private RelativeLayout.LayoutParams layoutParams; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.crop_test_layout); 
     imageView = (ImageView)findViewById(R.id.android_image); 
     cropBorder = new CropBox(this); 
     relativeLayout = (RelativeLayout)findViewById(R.id.crop_test_layout); 
     layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.FILL_PARENT); 
     ViewTreeObserver viewTreeObserver = imageView.getViewTreeObserver(); 
     if(viewTreeObserver.isAlive()) { 
      viewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() { 
       public void onGlobalLayout() { 
        layoutParams.leftMargin = imageView.getWidth()/2 - (int)((Attr.CROP_BOX_START_X + Attr.CROP_BOX_END_X)/2) + imageView.getLeft(); 
        layoutParams.topMargin = imageView.getHeight()/2 - (int)((Attr.CROP_BOX_START_Y + Attr.CROP_BOX_END_Y)/2) + imageView.getTop(); 
       } 
      }); 
     } 
     relativeLayout.addView(cropBorder, layoutParams); 
     cropBorder.setOnTouchListener(new Crop()); 
    } 

} 

자르기 등급 :

public class Crop implements OnTouchListener { 

    private static final int NONE = 0; 
    private static final int BOX_DRAG = 1; 
    private static final int BORDER_DRAG = 2; 

    private Matrix matrix = new Matrix(); 
    private Matrix savedMatrix = new Matrix(); 

    private PointF start = new PointF(); 

    private int mode = NONE; 

    private float cropBoxStartX = Attr.CROP_BOX_START_X; 
    private float cropBoxStartY = Attr.CROP_BOX_START_Y; 
    private float cropBoxEndX = Attr.CROP_BOX_END_X; 
    private float cropBoxEndY = Attr.CROP_BOX_END_Y; 

    public boolean onTouch(View view, MotionEvent event) { 
     CropBox cropBox = (CropBox)view; 

     switch(event.getAction() & MotionEvent.ACTION_MASK) { 

      case MotionEvent.ACTION_DOWN: 
       savedMatrix.set(matrix); 
       start.set(event.getX(), event.getY()); 
       if(event.getX() > cropBoxStartX && event.getX() < cropBoxEndX && event.getY() > cropBoxStartY && event.getY() < cropBoxEndY) 
        mode = BOX_DRAG; 
       else if(event.getX() == cropBoxStartX || event.getX() == cropBoxEndX || event.getY() == cropBoxStartY || event.getY() == cropBoxEndY) 
        mode = BORDER_DRAG; 
       else 
        mode = NONE; 
       break; 

      case MotionEvent.ACTION_UP: 
       mode = NONE; 
       break; 

      case MotionEvent.ACTION_MOVE: 
       if(mode == BOX_DRAG) { 
        matrix.set(savedMatrix); 
        matrix.postTranslate(event.getX() - start.x, event.getY() - start.y); 
       } 
       else if(mode == BORDER_DRAG) { 
       } 
       break; 
     } 
     cropBox.setImageMatrix(matrix); 
     return true; 
    } 

} 

레이아웃 XML : 당신의 도움에 대한

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/crop_test_layout" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" > 

    <ImageView 
     android:id="@+id/android_image" 
     android:src="@drawable/android" 
     android:layout_width="300dp" 
     android:layout_height="300dp" 
     android:layout_marginTop="10dp" 
     android:layout_marginRight="10dp" 
     android:layout_marginBottom="10dp" 
     android:layout_marginLeft="10dp" 
     android:layout_gravity="center" 
     android:scaleType="fitXY" 
     android:contentDescription="@string/android_image_description" > 
    </ImageView> 

</RelativeLayout> 

감사합니다.

Answer 1

나는 당신의 구현이 옳다고 믿는다. 나는 당신이 CropBox의 스케일 타입을 MATRIX로 설정하여 setImageMatrix를 사용할 수 있다고 생각한다.