使用向左/右行滑动的Recyclerview

Question

我有viewpager和tablayout,内部viewpager有一个创建RecolyerView片段,

在RecyclerVIew roe项目中,我创建了一个水平滚动视图,用于向左/向右移动,

基本上,我只想滑动屏幕的75%左右,然后显示可滑动视图,

我还使用了recyclerview的ItemTouchHelper,但它会刷行（100%刷行）,

但所有这些都不能正常工作,因为当我们在recyclerview项上滑动时,有时触摸到ViewPager,因此页面被滑动,我不希望这样,

因此我使用了HorizontalScrollView,但问题是我无法检测HorizontalScrollView的touch listner内的滑动方向,

实际上,如果在horizontalscrollview上滚动,我们希望自动滚动一定的量,

holder.scrollContainer.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                int scroll1st = 0;
                int scroll2nd = 0;

                if(event.getAction() == MotionEvent.ACTION_DOWN){
                    scroll1st = holder.scrollContainer.getScrollX();
                    Log.d("SCROLL", "Scroll down callded: amt is: " + holder.scrollContainer.getScrollX() );
                    mDataSet.get(position).isFirstSwipe = false;
                } else if (event.getAction() == MotionEvent.ACTION_UP){
                    scroll2nd = holder.scrollContainer.getScrollX();
                    Log.d("SCROLL", "Scroll up callded: amt is: " + holder.scrollContainer.getScrollX() );
                }

                Log.d("SCROLL", "max scroll amount: " + holder.scrollContainer.getMaxScrollAmount());

                if(event.getAction() == MotionEvent.ACTION_UP){

                    if(scroll2nd > scroll1st && (scroll2nd - scroll1st ) > 50 ){
                        holder.scrollContainer.postDelayed(new Runnable() {
                            public void run() {
                                holder.scrollContainer.fullScroll(HorizontalScrollView.FOCUS_RIGHT);
                            }
                        }, 100L);
                        mDataSet.get(position).isFirstSwipe = true;
                    } else if (scroll1st > scroll2nd && (scroll1st - scroll2nd ) > 50){
                        holder.scrollContainer.postDelayed(new Runnable() {
                            public void run() {
                                holder.scrollContainer.fullScroll(HorizontalScrollView.FOCUS_LEFT);
                            }
                        }, 100L);
                        mDataSet.get(position).isFirstSwipe = true;
                    }
    }
                v.onTouchEvent(event);
                return true;
            }
        });

基本上action.down事件不是每次都调用，所以不能不派生滑动方向

Answer 1

确保recyclerView正在将事件传递给滚动容器。

将OnTouchListener添加到RecyclerView并将事件传递给您的ScrollView。