Listview或者GridView嵌套在ScrollView中只显示一行item解决方法。

 页面里有ListView（GridView）和一些固定布局让他们一起在整个屏幕上滚动方法：

一、解决办法。（可用）

（1）自定义ListView（GridView），重写onMeasure()方法，我以GridView为例（ListView只需要extends ListView）具体代码如下：

public class AntGridView extends GridView {

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

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

    public AntGridView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }
    /*重点在这里重写onMeasure()*/
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
                MeasureSpec.AT_MOST);

        super.onMeasure(widthMeasureSpec, expandSpec);
    }


}

(2)在布局文件中将整个布局放在ScollerView中，要使用的GridView或者ListView使用自定义的HeaderGridView,具体xml代码如下：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="180dp"
                android:background="#00aa00">
                
            </LinearLayout>

            <!-- 一定要是自定义View的包名和类名 -->
            <top.ant.view.AntGridView
                android:id="@+id/ant_live_index_gridview"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:numColumns="2">

            
            </top.ant.view.AntGridView>
        </LinearLayout>
    </ScrollView>


</LinearLayout>

二、  动态计算子view的高度，传给ScrollView

public void setListViewHeightBasedOnChildren(ListView listView) {    
    ListAdapter listAdapter = listView.getAdapter();     
    if (listAdapter == null) {    
        return;    
    }    
  
    int totalHeight = 0;    
    for (int i = 0; i < listAdapter.getCount(); i++) {    
        View listItem = listAdapter.getView(i, null, listView);    
        listItem.measure(0, 0);    
        totalHeight += listItem.getMeasuredHeight();    
    }    
  
    ViewGroup.LayoutParams params = listView.getLayoutParams();    
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));    
    ((MarginLayoutParams)params).setMargins(10, 10, 10, 10);  
    listView.setLayoutParams(params);    
}