在scrollview中嵌套listview或者gridview时

如果listview或者gridview的高度时wrap－content会导致两者只显示一行多一点

原因：

listview和gridview都继承于scrollview 两个scrollview嵌套会导致高度有问题。

核心解决方案：

重写listview和gridview的onMeasure方法 如下：

package come.cake.customview;import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;/*** Created by apple on 16/1/20.*/
public class MyListView extends ListView {public MyListView(Context context, AttributeSet attrs) {super(context, attrs);}public MyListView(Context context) {super(context);}public MyListView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);}protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,MeasureSpec.AT_MOST);super.onMeasure(widthMeasureSpec, expandSpec);}@Overridepublic boolean dispatchTouchEvent(MotionEvent ev) {if (ev.getAction() == MotionEvent.ACTION_MOVE) {return true;//禁止listview进行滑动}return super.dispatchTouchEvent(ev);}
}

package come.cake.customview;import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.GridView;public class MyGridView extends GridView {public MyGridView(Context context, AttributeSet attrs) {super(context, attrs);}public MyGridView(Context context) {super(context);}public MyGridView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);}@Overridepublic boolean dispatchTouchEvent(MotionEvent ev) {if (ev.getAction() == MotionEvent.ACTION_MOVE) {return true;//禁止Gridview进行滑动}return super.dispatchTouchEvent(ev);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,MeasureSpec.AT_MOST);super.onMeasure(widthMeasureSpec, expandSpec);}
}gridView.setFocusable(false);
//scrollview内部嵌套gridview防止从底部显示，加上这行代码就会从头部显示