正常情況下NestedScrollView巢狀RecycleView，一是會出現只顯示一行的情況，二是滑動異常即事件衝突。

解決方法：

1.也是最簡單的方法，把design庫和V7庫升級到23.2以上，注意加上以下程式碼

mLinearLayoutManager.setSmoothScrollbarEnabled(true);  
mLinearLayoutManager.setAutoMeasureEnabled(true);  
cardslist_view.setLayoutManager(mLinearLayoutManager);  
cardslist_view.
 
setHasFixedSize(true);  
cardslist_view.setNestedScrollingEnabled(false);

問題即可解決。

2.麻煩一點，重寫LinearLayoutManager和NestedScrollView。

public class CustomLinearLayoutManager extends LinearLayoutManager {  
  
    public CustomLinearLayoutManager(Context context, int orientation, boolean reverseLayout)
 
 {  
        super(context, orientation, reverseLayout);  
    }  
  
    private int[] mMeasuredDimension = new int[2];  
  
    @Override  
    public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state,  
                          int widthSpec, int heightSpec) {  
        final
 
 int widthMode = View.MeasureSpec.getMode(widthSpec);  
        final int heightMode = View.MeasureSpec.getMode(heightSpec);  
        final int widthSize = View.MeasureSpec.getSize(widthSpec);  
        final int heightSize = View.MeasureSpec.getSize(heightSpec);  
        int width = 0;  
        int height = 0;  
        for (int i = 0; i < getItemCount(); i++) {  
            if (getOrientation() == HORIZONTAL) {  
                measureScrapChild(recycler, i,  
                        View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),  
                        heightSpec,  
                        mMeasuredDimension);  
  
                width = width + mMeasuredDimension[0];  
                if (i == 0) {  
                    height = mMeasuredDimension[1];  
                }  
            } else {  
                measureScrapChild(recycler, i,  
                        widthSpec,  
                        View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),  
                        mMeasuredDimension);  
                height = height + mMeasuredDimension[1];  
                if (i == 0) {  
                    width = mMeasuredDimension[0];  
                }  
            }  
        }  
        switch (widthMode) {  
            case View.MeasureSpec.EXACTLY:  
                width = widthSize;  
            case View.MeasureSpec.AT_MOST:  
            case View.MeasureSpec.UNSPECIFIED:  
        }  
  
        switch (heightMode) {  
            case View.MeasureSpec.EXACTLY:  
                height = heightSize;  
            case View.MeasureSpec.AT_MOST:  
            case View.MeasureSpec.UNSPECIFIED:  
        }  
  
        setMeasuredDimension(width, height);  
    }  
  
    private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,  
                                   int heightSpec, int[] measuredDimension) {  
        View view = recycler.getViewForPosition(position);  
        recycler.bindViewToPosition(view, position);  
        if (view != null) {  
            RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();  
            int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,  
                    getPaddingLeft() + getPaddingRight(), p.width);  
            int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,  
                    getPaddingTop() + getPaddingBottom(), p.height);  
            view.measure(childWidthSpec, childHeightSpec);  
            measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;  
            measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;  
            recycler.recycleView(view);  
        }  
    }  
  
} 

   public class MyNestedScrollView extends NestedScrollView {  
        private int downX;  
        private int downY;  
        private int mTouchSlop;  
      
        public MyNestedScrollView(Context context) {  
            super(context);  
            mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();  
        }  
      
        public MyNestedScrollView(Context context, AttributeSet attrs) {  
            super(context, attrs);  
            mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();  
        }  
      
        public MyNestedScrollView(Context context, AttributeSet attrs, int defStyleAttr) {  
            super(context, attrs, defStyleAttr);  
            mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();  
        }  
      
        @Override  
        public boolean onInterceptTouchEvent(MotionEvent e) {  
            int action = e.getAction();  
            switch (action) {  
                case MotionEvent.ACTION_DOWN:  
                    downX = (int) e.getRawX();  
                    downY = (int) e.getRawY();  
                    break;  
                case MotionEvent.ACTION_MOVE:  
                    int moveY = (int) e.getRawY();  
                    if (Math.abs(moveY - downY) > mTouchSlop) {  
                        return true;  
                    }  
            }  
            return super.onInterceptTouchEvent(e);  
        }  
    }  

轉載自：https://blog.csdn.net/lzn51/article/details/52685306