解决ScrollView嵌套RecyclerView的冲突，非常简单，拿去可以直接用

转载 连接 [这里写链接内容](http://blog.youkuaiyun.com/revival_liang/article/details/52201099)

建一个类

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print ?

1. package com.example.k.shoppingapp.Extend.Baby_Activity_Extend;  
2.   
3. import android.content.Context;  
4. import android.support.v7.widget.LinearLayoutManager;  
5. import android.support.v7.widget.RecyclerView;  
6. import android.util.Log;  
7. import android.view.View;  
8. import android.view.ViewGroup;  
9.   
10. /**  
11.  * Created by k on 2016/8/13.  
12.  */  
13. public class FullyLinearLayoutManager extends LinearLayoutManager {  
14.   
15.     private static final String TAG = FullyLinearLayoutManager.class.getSimpleName();  
16.   
17.     public FullyLinearLayoutManager(Context context) {  
18.         super(context);  
19.     }  
20.   
21.     public FullyLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {  
22.         super(context, orientation, reverseLayout);  
23.     }  
24.   
25.     private int[] mMeasuredDimension = new int[2];  
26.   
27.     @Override  
28.     public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state,  
29.                           int widthSpec, int heightSpec) {  
30.   
31.         final int widthMode = View.MeasureSpec.getMode(widthSpec);  
32.         final int heightMode = View.MeasureSpec.getMode(heightSpec);  
33.         final int widthSize = View.MeasureSpec.getSize(widthSpec);  
34.         final int heightSize = View.MeasureSpec.getSize(heightSpec);  
35.   
36.         Log.i(TAG, “onMeasure called. \nwidthMode ” + widthMode  
37.                 + ” \nheightMode ” + heightSpec  
38.                 + ” \nwidthSize ” + widthSize  
39.                 + ” \nheightSize ” + heightSize  
40.                 + ” \ngetItemCount() ” + getItemCount());  
41.   
42.         int width = 0;  
43.         int height = 0;  
44.         for (int i = 0; i < getItemCount(); i++) {  
45.             measureScrapChild(recycler, i,  
46.                     View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),  
47.                     View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),  
48.                     mMeasuredDimension);  
49.   
50.             if (getOrientation() == HORIZONTAL) {  
51.                 width = width + mMeasuredDimension[0];  
52.                 if (i == 0) {  
53.                     height = mMeasuredDimension[1];  
54.                 }  
55.             } else {  
56.                 height = height + mMeasuredDimension[1];  
57.                 if (i == 0) {  
58.                     width = mMeasuredDimension[0];  
59.                 }  
60.             }  
61.         }  
62.         switch (widthMode) {  
63.             case View.MeasureSpec.EXACTLY:  
64.                 width = widthSize;  
65.             case View.MeasureSpec.AT_MOST:  
66.             case View.MeasureSpec.UNSPECIFIED:  
67.         }  
68.   
69.         switch (heightMode) {  
70.             case View.MeasureSpec.EXACTLY:  
71.                 height = heightSize;  
72.             case View.MeasureSpec.AT_MOST:  
73.             case View.MeasureSpec.UNSPECIFIED:  
74.         }  
75.   
76.         setMeasuredDimension(width, height);  
77.     }  
78.   
79.     private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,  
80.                                    int heightSpec, int[] measuredDimension) {  
81.         try {  
82.             View view = recycler.getViewForPosition(0);//fix 动态添加时报IndexOutOfBoundsException  
83.   
84.             if (view != null) {  
85.                 RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();  
86.   
87.                 int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,  
88.                         getPaddingLeft() + getPaddingRight(), p.width);  
89.   
90.                 int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,  
91.                         getPaddingTop() + getPaddingBottom(), p.height);  
92.   
93.                 view.measure(childWidthSpec, childHeightSpec);  
94.                 measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;  
95.                 measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;  
96.                 recycler.recycleView(view);  
97.             }  
98.         } catch (Exception e) {  
99.             e.printStackTrace();  
100.         } finally {  
101.         }  
102.     }  
103. }  

package com.example.k.shoppingapp.Extend.Baby_Activity_Extend;

import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;

/**
 * Created by k on 2016/8/13.
 */
public class FullyLinearLayoutManager extends LinearLayoutManager {

    private static final String TAG = FullyLinearLayoutManager.class.getSimpleName();

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

    public FullyLinearLayoutManager(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);

        Log.i(TAG, "onMeasure called. \nwidthMode " + widthMode
                + " \nheightMode " + heightSpec
                + " \nwidthSize " + widthSize
                + " \nheightSize " + heightSize
                + " \ngetItemCount() " + getItemCount());

        int width = 0;
        int height = 0;
        for (int i = 0; i < getItemCount(); i++) {
            measureScrapChild(recycler, i,
                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
                    mMeasuredDimension);

            if (getOrientation() == HORIZONTAL) {
                width = width + mMeasuredDimension[0];
                if (i == 0) {
                    height = mMeasuredDimension[1];
                }
            } else {
                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) {
        try {
            View view = recycler.getViewForPosition(0);//fix 动态添加时报IndexOutOfBoundsException

            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);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
        }
    }
}

然后在代码里添加如下：

[html] view plain copy

print ?

1. FullyLinearLayoutManager linearLayoutManager = new FullyLinearLayoutManager(this);  
2.         recyclerView.setNestedScrollingEnabled(false);  
3.         //设置布局管理器  
4.         recyclerView.setLayoutManager(linearLayoutManager);  

FullyLinearLayoutManager linearLayoutManager = new FullyLinearLayoutManager(this);
一定不要忘了添加这行代码
        recyclerView.setNestedScrollingEnabled(false);
        //设置布局管理器
        recyclerView.setLayoutManager(linearLayoutManager);