如何拦截ViewPager.OnPageChangeListener中的触摸事件

Question

我试图禁止我的ViewPager在标签之间滚动.我有以下情况:

        public class MyClass extends ViewPager implements ViewPager.OnPageChangeListener, OnTouchListener {

             public MyClass() {
               setOnTouchListener(this);
             }

@Override
    public void onPageScrollStateChanged(int state) {
        Log.d("Testing", TAG + " onPageScrollStateChanged");
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
        Log.d("Testing", TAG + " onPageScrolled");
    }

    @Override
    public void onPageSelected(int position) {
        Log.d("Testing", TAG + " onPageSelected");
    }

        @Override
        public boolean onInterceptTouchEvent(MotionEvent event) {
            Log.d("Testing", "intercept");
                return false;
        }

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                Log.d("Testing", "touch2");
                    return false;
            }

        }

我通常从onPageScrolled和onPageScrollStateChanged获取日志,但是我没有来自onInterceptTouchEvent和onTouch的日志.我究竟做错了什么？

Answer 1

这就是我处理这个问题的方法(我的全班):

public class SelectiveViewPager extends ViewPager {
private boolean paging = true;

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

public SelectiveViewPager(Context context, AttributeSet attributeSet){
    super(context, attributeSet);
}

@Override
public boolean onInterceptTouchEvent(MotionEvent e) {
    if (paging) {
        return super.onInterceptTouchEvent(e);
    }

    return false;
}

public void setPaging(boolean p){ paging = p; }

}

paging如果需要,布尔值可让您选择打开和关闭它.如果你不需要,只是return false.如果你没有做任何特别的事情onTouch,你不需要覆盖它.