Android Open Source - Android-Photo-Zoom Hacky View Pager

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Back to project page Android-Photo-Zoom.

License

The source code is released under:

Apache License

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Java Source Code

package com.blocker.photo;
/*from w  ww .  j  ava  2s  . co m*/
import com.blocker.photo.ImageAdapter.SamplePagerAdapter;

import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewGroup;

/**
 * Hacky fix for Issue #4 and
 * http://code.google.com/p/android/issues/detail?id=18990
 * 
 * ScaleGestureDetector seems to mess up the touch events, which means that
 * ViewGroups which make use of onInterceptTouchEvent throw a lot of
 * IllegalArgumentException: pointerIndex out of range.
 * 
 * There's not much I can do in my code for now, but we can mask the result by
 * just catching the problem and ignoring it.
 * 
 * @author Chris Banes
 */
public class HackyViewPager extends ViewPager {

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

  
  public HackyViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  @Override
  public boolean onInterceptTouchEvent(MotionEvent ev) {
    try {
      return super.onInterceptTouchEvent(ev);
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
      return false;
    } catch (ArrayIndexOutOfBoundsException e) {
            e.printStackTrace();
            return false;
        }
  }

}

Java Source Code List