案例：ScrollView中嵌套ListView, 避免：1.ListView只显示首项，2.ScrollView会自动滚动到ListView的首项位置

1.布局文件

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

        <extra.view.MyGridView
            android:id="@+id/gridview"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:horizontalSpacing="2dp"
            android:listSelector="#ffffff"
            android:numColumns="2"
            android:padding="2dp"
            android:scrollbars="none"
            android:verticalSpacing="2dp" />


    </LinearLayout>

2.自定义ListView

package com.example.chechengwang.view;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;
/**
 * 作者：余天然 on 2015/7/27 10:19
 * 邮箱：yutianran[email protected]
 * 博客：http://my.oschina.net/u/2345676/blog
 * 座右铭:知识来自积累,经验源于总结
 */
public class MyListView extends ListView {
    public MyListView(Context context) {
        super(context);
    }
    public MyListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public MyListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
                MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }
}

来自为知笔记(Wiz)