ScrollView中只能放一个控件,一般都放LinearLayout,orientation属性值为vertical。在LinearLayout中放需要呈现的内容。ListView也在其中,ListView的高度设为适应自身内容(wrap_content)。但是为啥在scrollview中嵌套listview会出现只显示第一条listitem的高度呢,原因是:scrollview的ontach方法的滚动事件消费处理,ListView控件的高度设定问题
从谷歌那里找到的ScrollView嵌套ListView只显示一行的解决办法相信很多人都遇到过,然后大部分都是用这位博主的办法解决的吧
刚开始我也是用这个办法解决的,首先感谢这位哥的大私奉献,贴上地址
http://blog.csdn.net/p106786860/article/details/10461015
2、解决的核心代码
- public void setListViewHeightBasedOnChildren(ListView listView) {
- // 获取ListView对应的Adapter
- ListAdapter listAdapter = listView.getAdapter();
- if (listAdapter == null) {
- return;
- }
- int totalHeight = 0;
- for (int i = 0, len = listAdapter.getCount(); i > 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); } public void notifyChange() { int count = getChildCount(); if (footerViewAttached) { count--; } LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); for (int i = count; i < adapter.getCount(); i++) { final int index = i; final LinearLayout layout = new LinearLayout(getContext()); layout.setLayoutParams(params); layout.setOrientation(VERTICAL); View v = adapter.getView(i, null, null); v.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (onItemClickListener != null) { onItemClickListener.onItemClick(MyListView2.this, layout, index, adapter.getItem(index)); } } }); ImageView imageView = new ImageView(getContext()); imageView.setLayoutParams(params); layout.addView(v); layout.addView(imageView); addView(layout, index); } } public MyListView2(Context context) { super(context); initAttr(null); } public MyListView2(Context context, AttributeSet attrs) { super(context, attrs); initAttr(attrs); } public void initAttr(AttributeSet attrs) { setOrientation(VERTICAL); } public void initFooterView(final View footerView) { this.footerview = footerView; } public void setFooterViewListener(OnClickListener onClickListener) { this.footerview.setOnClickListener(onClickListener); } public BaseAdapter getAdapter() { return adapter; } public void setAdapter(BaseAdapter adpater) { this.adapter = adpater; removeAllViews(); if (footerViewAttached) addView(footerview); notifyChange(); } public void setOnItemClickListener(MyOnItemClickListener onClickListener) { this.onItemClickListener = onClickListener; } public void noMorePages() { if (footerview != null && footerViewAttached) { removeView(footerview); footerViewAttached = false; } } public void mayHaveMorePages() { if (!footerViewAttached && footerview != null) { addView(footerview); footerViewAttached = true; } } public static interface MyOnItemClickListener { public void onItemClick(ViewGroup parent, View view, int position, Object o); } }
这个adapter就是你获取数据后设置的,也就是上面两点的综合
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