Android Open Source - ByakuGallery Touch Gesture Detector

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Back to project page ByakuGallery.

License

The source code is released under:

Apache License

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Java Source Code

package com.diegocarloslima.byakugallery.lib;
//from w  w w  .  j  a  va  2s .  c o m
import android.content.Context;
import android.support.v4.view.GestureDetectorCompat;
import android.support.v4.view.ScaleGestureDetectorCompat;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;

public class TouchGestureDetector {

  private final GestureDetectorCompat mGestureDetector;
  private final ScaleGestureDetector mScaleGestureDetector;

  public TouchGestureDetector(Context context, OnTouchGestureListener listener) {
    mGestureDetector = new GestureDetectorCompat(context, listener);
    mGestureDetector.setOnDoubleTapListener(listener);
    mScaleGestureDetector = new ScaleGestureDetector(context, listener);
    ScaleGestureDetectorCompat.setQuickScaleEnabled(mScaleGestureDetector, false);
  }

  public boolean onTouchEvent(MotionEvent event) {
    boolean ret = mScaleGestureDetector.onTouchEvent(event);
    if(!mScaleGestureDetector.isInProgress()) {
      ret |= mGestureDetector.onTouchEvent(event);
    }
    return ret;
  }

  public static abstract class OnTouchGestureListener implements GestureDetector.OnGestureListener, GestureDetector.OnDoubleTapListener, ScaleGestureDetector.OnScaleGestureListener {

    @Override
    public boolean onDown(MotionEvent e) {
      return false;
    }

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
      return false;
    }

    @Override
    public void onLongPress(MotionEvent e) {}

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
      return false;
    }

    @Override
    public void onShowPress(MotionEvent e) {}

    @Override
    public boolean onSingleTapUp(MotionEvent e) {
      return false;
    }

    @Override
    public boolean onDoubleTap(MotionEvent e) {
      return false;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent e) {
      return false;
    }

    @Override
    public boolean onSingleTapConfirmed(MotionEvent e) {
      return false;
    }

    @Override
    public boolean onScale(ScaleGestureDetector detector) {
      return false;
    }

    @Override
    public boolean onScaleBegin(ScaleGestureDetector detector) {
      return false;
    }

    @Override
    public void onScaleEnd(ScaleGestureDetector detector) {}
  }
}

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