我创建以下代码:
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position,
long id) {
for (int i = 0; i < mListView.getCount(); i++) {
View callLogView = mListView.getChildAt(i);
mRelativeLayout = (LinearLayout)callLogView.findViewById(R.id.myShow);
if(i == position){
if(mRelativeLayout.getVisibility() == View.GONE){
mRelativeLayout.setVisibility(View.VISIBLE);
}
else{
mRelativeLayout.setVisibility(View.GONE);
}
}else{
mRelativeLayout.setVisibility(View.GONE);
}
}
}
});
我想实现一个功能,比如当我点击一个项目时Listview
,它会显示一个视图,而 Listview 的其他项目将被隐藏。但是mListView.getChildAt(i)
在超出后会有空指针mListView.getChildCount()
。
如何解决这个问题?提前致谢!