android 之ScrollView下套LIstview两种实现listview拓展的方式

1：很简单

    在自定义MyListView extends ListView下从写onMeasure方法就行了

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

  int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,     MeasureSpec.AT_MOST);   super.onMeasure(widthMeasureSpec, expandSpec);  }

 

2：计算listView的高度（注意：这种方式的Adapter下的布局的最外层的布局文件要是LinearLayout）

 public void setListViewHeightBasedOnChildren(ListView listView) {
  ListAdapter listAdapter = listView.getAdapter();
  if (listAdapter == null) {
   return;
  }
  int totalHeight = 0;
  for (int i = 0, len = listAdapter.getCount(); i < len; i++) { // listAdapter.getCount()
   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);
 }