之前在開發過程中遇到過ScrollView巢狀ListView的開發需求，如果listview的item高度固定的話，可以通過繼承listview進行重寫onMeasure()方法可以完美解決滑動衝突等問題，程式碼如下：

public class ChildListView extends ListView {
    
    public ChildListView(Context context) {
        super(context);
}

    public ChildListView(Context context, AttributeSet attrs) {
        super
 
(context, attrs);
}

    public ChildListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
}
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2
 
,
MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
}

}

但當listview的item高度不固定時，比如從後臺返回的是文字，文字多少不固定有多有少，這時候如果再用上面的方法就會有一個bug，就是ListView的最後一個Item偶爾會被遮擋，顯示不全，我在開發中遇到的問題截圖如下：

最後一行字完全被遮擋了，這時候就不能用上述方案解決了，下面是我的解決方案如下：

public class NestedListView extends ListView implements View.OnTouchListener, 
 
AbsListView.OnScrollListener {

    private int listViewTouchAction;
    private static final int MAXIMUM_LIST_ITEMS_VIEWABLE = 99;
    public NestedListView(Context context, AttributeSet attrs) {
        super(context, attrs);
listViewTouchAction = -1;
setOnScrollListener(this);
setOnTouchListener(this);
}

    @Override
public void onScroll(AbsListView view, int firstVisibleItem,
                         int visibleItemCount, int totalItemCount) {
        if (getAdapter() != null && getAdapter().getCount() > MAXIMUM_LIST_ITEMS_VIEWABLE) {
            if (listViewTouchAction == MotionEvent.ACTION_MOVE) {
                scrollBy(0, -1);
}
        }
    }

    @Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
    }

    @Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int newHeight = 0;
        final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
        int heightSize = MeasureSpec.getSize(heightMeasureSpec);
        if (heightMode != MeasureSpec.EXACTLY) {
            ListAdapter listAdapter = getAdapter();
            if (listAdapter != null && !listAdapter.isEmpty()) {
                int listPosition = 0;
                for (listPosition = 0; listPosition < listAdapter.getCount()
                        && listPosition < MAXIMUM_LIST_ITEMS_VIEWABLE; listPosition++) {
                    View listItem = listAdapter.getView(listPosition, null, this);
//now it will not throw a NPE if listItem is a ViewGroup instance
if (listItem instanceof ViewGroup) {
                        listItem.setLayoutParams(new LayoutParams(
                                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
}
                    listItem.measure(widthMeasureSpec, heightMeasureSpec);
newHeight += listItem.getMeasuredHeight();
}
                newHeight += getDividerHeight() * listPosition;
}
            if ((heightMode == MeasureSpec.AT_MOST) && (newHeight > heightSize)) {
                if (newHeight > heightSize) {
                    newHeight = heightSize;
}
            }
        } else {
            newHeight = getMeasuredHeight();
}
        setMeasuredDimension(getMeasuredWidth(), newHeight);
}

    @Override
public boolean onTouch(View v, MotionEvent event) {
        if (getAdapter() != null && getAdapter().getCount() > MAXIMUM_LIST_ITEMS_VIEWABLE) {
            if (listViewTouchAction == MotionEvent.ACTION_MOVE) {
                scrollBy(0, 1);
}
        }
        return false;
}
}

參考連結如下：