这个方法对我很有效

使用NestedScrollView与高度wrap_content，并为您的RecyclerView设置:

<androidx.recyclerview.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:nestedScrollingEnabled="false"
    app:layoutManager="android.support.v7.widget.LinearLayoutManager" />

并设置视图持有者布局参数:

android:layout_width="match_parent"
android:layout_height="wrap_content"

首先，你应该使用NestedScrollView而不是ScrollView，并把RecyclerView放在NestedScrollView里面。

使用自定义布局类测量屏幕的高度和宽度:

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);
    }
}
}

并在RecyclerView的活动/片段中实现以下代码:

 final CustomLinearLayoutManager layoutManager = new CustomLinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);

    recyclerView.setLayoutManager(layoutManager);
    recyclerView.setAdapter(mAdapter);

    recyclerView.setNestedScrollingEnabled(false); // Disables scrolling for RecyclerView, CustomLinearLayoutManager used instead of MyLinearLayoutManager
    recyclerView.setHasFixedSize(false);

    recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            super.onScrolled(recyclerView, dx, dy);

            int visibleItemCount = layoutManager.getChildCount();
            int totalItemCount = layoutManager.getItemCount();
            int lastVisibleItemPos = layoutManager.findLastVisibleItemPosition();
            Log.i("getChildCount", String.valueOf(visibleItemCount));
            Log.i("getItemCount", String.valueOf(totalItemCount));
            Log.i("lastVisibleItemPos", String.valueOf(lastVisibleItemPos));
            if ((visibleItemCount + lastVisibleItemPos) >= totalItemCount) {
                Log.i("LOG", "Last Item Reached!");
            }
        }
    });

实际上，RecyclerView的主要目的是补偿ListView和ScrollView。而不是做你实际上在做的事情:在ScrollView中有一个RecyclerView，我建议只有一个RecyclerView可以处理许多类型的子。

我使用CustomLayoutManager禁用RecyclerView滚动。 也不要使用回收器视图作为WrapContent，使用它作为0dp, Weight=1

public class CustomLayoutManager extends LinearLayoutManager {
    private boolean isScrollEnabled;

    // orientation should be LinearLayoutManager.VERTICAL or HORIZONTAL
    public CustomLayoutManager(Context context, int orientation, boolean isScrollEnabled) {
        super(context, orientation, false);
        this.isScrollEnabled = isScrollEnabled;
    }

    @Override
    public boolean canScrollVertically() {
        //Similarly you can customize "canScrollHorizontally()" for managing horizontal scroll
        return isScrollEnabled && super.canScrollVertically();
    }
}

在RecyclerView中使用CustomLayoutManager:

CustomLayoutManager mLayoutManager = new CustomLayoutManager(getBaseActivity(), CustomLayoutManager.VERTICAL, false);
        recyclerView.setLayoutManager(mLayoutManager);
        ((DefaultItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false); 
        recyclerView.setAdapter(statsAdapter);

哎哟XML:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background_main"
    android:fillViewport="false">


    <LinearLayout
        android:id="@+id/contParentLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <edu.aku.family_hifazat.libraries.mpchart.charts.PieChart
                android:id="@+id/chart1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/x20dp"
                android:minHeight="@dimen/x300dp">

            </edu.aku.family_hifazat.libraries.mpchart.charts.PieChart>


        </FrameLayout>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1">


        </android.support.v7.widget.RecyclerView>


    </LinearLayout>


</ScrollView>

看起来NestedScrollView确实解决了这个问题。

我使用这个布局进行了测试:

<android.support.v4.widget.NestedScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/dummy_text" />

        <android.support.v7.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recycler_view"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </android.support.v7.widget.CardView>

    </LinearLayout>

</android.support.v4.widget.NestedScrollView>

而且它没有任何问题。

如果你把RecyclerView放在NestedScrollView里面，并启用RecyclerView . setnestedscrollingenabled (false);，滚动将工作得很好。 然而，有一个问题

RecyclerView不回收

例如，你的RecyclerView(在NestedScrollView或ScrollView内)有100个条目。 当Activity启动时，将创建100个项目(同时调用100个项目的onCreateViewHolder和onBindViewHolder)。 例如，对于每个项目，你将加载一个大图像从API =>活动创建-> 100图像将加载。 它使启动活动缓慢和滞后。 可能的解决方案: -考虑使用多重类型的RecyclerView。

然而，如果在你的情况下，只有几个项目在RecyclerView和回收或不回收不会影响性能很多，你可以在ScrollView内使用RecyclerView简单