ListView隻顯示第一個子項的情況下,需要設定它的布局參數,以顯示全部子項。隻需要調用以下函數即可。
private 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++) {
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);
private void setArrowHind(){
arrow.setVisibility(View.GONE);
}