Android Open Source - HorizontalImageScroller-Modified Vertical Scroll View

From Project

Back to project page HorizontalImageScroller-Modified.

License

The source code is released under:

Apache License

If you think the Android project HorizontalImageScroller-Modified listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

/*
Copyright 2012 Two Toasters, LLC//from  w  w w  .  java 2  s  .c  o  m

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
package com.twotoasters.android.horizontalimagescroller.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ScrollView;

public class VerticalScrollView extends ScrollView {
  private float xDistance, yDistance, lastX, lastY;

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

  @Override
  public boolean onInterceptTouchEvent(MotionEvent ev) {
    switch (ev.getAction()) {
      case MotionEvent.ACTION_DOWN:
        xDistance = yDistance = 0f;
        lastX = ev.getX();
        lastY = ev.getY();
        break;
      case MotionEvent.ACTION_MOVE:
        final float curX = ev.getX();
        final float curY = ev.getY();
        xDistance += Math.abs(curX - lastX);
        yDistance += Math.abs(curY - lastY);
        lastX = curX;
        lastY = curY;
        if (xDistance > yDistance)
          return false;
    }

    return super.onInterceptTouchEvent(ev);
  }
}

Java Source Code List