标签:
ScrollView嵌套ListView/GridView的显示问题可以说是安卓开发者都会遇到的问题,同时处理起来也比较麻烦,最近也遇到了这种问题,在这整理一下做个记录。
1、对于ListView最常用的就是动态的根据Adapter来计算列表的高度,在设置完列表之后调用一下对应的计算方法即可:
/** * 动态设置ListView的高度 * * @param listView */ public static void setListViewHeightBasedOnChildren(ListView listView) { if (listView == null) return; ListAdapter listAdapter = listView.getAdapter(); if (listAdapter == null) { // pre-condition 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)); listView.setLayoutParams(params); }
该方法是目前比较流行的解决ListView与ScrollView冲突的方案
2、重写ListView与GridView
重写ListView:
public class MyListView extends ListView { public MyListView(Context context) { // TODO Auto-generated method stub super(context); } public MyListView(Context context, AttributeSet attrs) { // TODO Auto-generated method stub super(context, attrs); } public MyListView(Context context, AttributeSet attrs, int defStyle) { // TODO Auto-generated method stub super(context, attrs, defStyle); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // TODO Auto-generated method stub int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); } }
重写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); } @Override public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); }
ScrollView嵌套ListVIew/GridView显示问题
标签:
原文地址:http://www.cnblogs.com/chlewsz/p/4445334.html