How to use

GestureDetector

in

com.oginotihiro.cropview.gestures

@Override
public void onDrag(float dx, float dy) {
  if (mDragScaleDetector.isScaling()) {
    return;
  }
  mSuppMatrix.postTranslate(dx, dy);
  checkAndDisplayMatrix();
}

  public static GestureDetector newInstance(Context context, OnGestureListener listener) {
    final int sdkVersion = Build.VERSION.SDK_INT;
    GestureDetector detector;

    if (sdkVersion < Build.VERSION_CODES.ECLAIR) {
      detector = new CupcakeGestureDetector(context);
    } else if (sdkVersion < Build.VERSION_CODES.FROYO) {
      detector = new EclairGestureDetector(context);
    } else {
      detector = new FroyoGestureDetector(context);
    }

    detector.setOnGestureListener(listener);

    return detector;
  }
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
  boolean handled = false;
  if (getDrawable() != null && mCropRect != null) {
    switch (ev.getAction()) {
      case ACTION_DOWN:
        cancelFling();
        break;
      case ACTION_CANCEL:
      case ACTION_UP:
        break;
    }
    if (null != mDragScaleDetector) {
      handled = mDragScaleDetector.onTouchEvent(ev);
    }
    if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
      handled = true;
    }
  }
  return true;
}

  public static GestureDetector newInstance(Context context, OnGestureListener listener) {
    final int sdkVersion = Build.VERSION.SDK_INT;
    GestureDetector detector;

    if (sdkVersion < Build.VERSION_CODES.ECLAIR) {
      detector = new CupcakeGestureDetector(context);
    } else if (sdkVersion < Build.VERSION_CODES.FROYO) {
      detector = new EclairGestureDetector(context);
    } else {
      detector = new FroyoGestureDetector(context);
    }

    detector.setOnGestureListener(listener);

    return detector;
  }
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
  boolean handled = false;
  if (getDrawable() != null && mCropRect != null) {
    switch (ev.getAction()) {
      case ACTION_DOWN:
        cancelFling();
        break;
      case ACTION_CANCEL:
      case ACTION_UP:
        break;
    }
    if (null != mDragScaleDetector) {
      handled = mDragScaleDetector.onTouchEvent(ev);
    }
    if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
      handled = true;
    }
  }
  return handled;
}

@Override
public void onDrag(float dx, float dy) {
  if (mDragScaleDetector.isScaling()) {
    return;
  }
  mSuppMatrix.postTranslate(dx, dy);
  checkAndDisplayMatrix();
}