com.example.imageslider.ImageSliderViewPager.java Source code

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Here is the source code for com.example.imageslider.ImageSliderViewPager.java

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/*
 * Copyright (C) 2012 The Founder Mobile Media Technology Android EPaper Project
 * 
 * Founder Mobile Media PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.example.imageslider;

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

public class ImageSliderViewPager extends ViewPager {

    /**
     *  the last x position 
     */
    private float mLastX;
    private float mLastY;

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

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

    public void setSliderAdapter(BasePagerAdapter adapter) {
        super.setAdapter(adapter);
    }

    public void setOnCyclePageChangeListener(OnImageSliderPageChangeListener listener) {
        super.setOnPageChangeListener(listener);
    }

    /*
     * handle the event for viewpager in viewpager
     */
    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        final int action = ev.getAction();
        switch (action) {
        case MotionEvent.ACTION_DOWN:
            // Disallow parent ViewPager to intercept touch events
            this.getParent().requestDisallowInterceptTouchEvent(true);
            // Log.e("down  Int" + sliding);
            // save the current x position
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();
            break;

        case MotionEvent.ACTION_UP:
            // Allow parent ViewPager to intercept touch events.
            this.getParent().requestDisallowInterceptTouchEvent(false);
            // Log.e("up  Int" + sliding);
            // save the current x position
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();
            break;

        case MotionEvent.ACTION_MOVE:
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();

            if (Math.abs(ev.getX() - this.mLastX) > Math.abs(ev.getY() - this.mLastY)) {
                this.getParent().requestDisallowInterceptTouchEvent(true);
            } else {
                // this.getParent().requestDisallowInterceptTouchEvent(false);
            }
            break;

        }
        return super.onInterceptTouchEvent(ev);
    }

    @Override
    public boolean onTouchEvent(final MotionEvent ev) {
        final int action = ev.getAction();
        switch (action) {
        case MotionEvent.ACTION_DOWN:
            // Disallow parent ViewPager to intercept touch events
            this.getParent().requestDisallowInterceptTouchEvent(true);

            // save the current x position
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();
            break;

        case MotionEvent.ACTION_UP:
            // Allow parent ViewPager to intercept touch events.
            this.getParent().requestDisallowInterceptTouchEvent(false);

            // save the current x position
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();
            break;

        case MotionEvent.ACTION_MOVE:
            this.mLastX = ev.getX();
            this.mLastY = ev.getY();
            break;
        }

        return super.onTouchEvent(ev);
    }

}