[英]Android: cannot set both: setOnItemClickListener setOnScrollListener?
class MyActivity extends Activity implements OnScrollListener, OnItemClickListener {
...
listView.setOnItemClickListener(this);
listView.setOnScrollListener(this); // why not work with previous line?
...
After adding ListView.setOnScrollListener(this) 添加ListView.setOnScrollListener(this)之后
onItemClick(...) no longer triggered. onItemClick(...)不再触发。
Anybody know why? 谁知道为什么?
thanks. 谢谢。
I don't see why it shouldn't work, 我不明白为什么它不应该工作,
Try this : 尝试这个 :
getListView().setOnScrollListener(onAnswersScrolled);
getListView().setOnItemClickListener(onAnswerClicked);
private OnItemClickListener onAnswerClicked = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
//
Intent i = new Intent();
setResult(RESULT_OK, i);
finish();
}
};
private OnScrollListener onAnswersScrolled = new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// not used
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// do something
}
}
};
Try this. 尝试这个。 This is my code to display a customized listView.
这是我显示自定义listView的代码。 It works for me.
这个对我有用。
public class MyActivity extends ListActivity implements OnScrollListener {
MyAdapter adapter= new MyAdapter(this);
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(adapter);
getListView().setOnItemClickListener(this);
getListView().setOnScrollListener(this);
}
public class MyAdapter extends BaseAdapter{
private LayoutInflater mInflater;
ViewHolder holder = null;
public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
/**Original holder
*
*
* */
//ViewHolder holder = null;
if (convertView == null) {
holder=new ViewHolder();
}else {
holder = (ViewHolder)convertView.getTag();
}
return convertView;
}
class myButtonListener implements OnClickListener {
private int position;
myButtonListener(int pos) {
position = pos;
}
@Override
public void onClick(View v) {
int vid=v.getId();
}
}
}
hope it helps. 希望能帮助到你。
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