自定义Listview

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 defStyle) {

super(context, attrs, defStyle);

}

@Override   protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,     MeasureSpec.AT_MOST);

super.onMeasure(widthMeasureSpec, expandSpec);

}

}