如何在Android中为ListView编写onclick事件？
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How to write onclick event for ListView in Android?
提问by Srikanth Naidu
Hi i have the listview the sixitems in it, but when i call alet function on event it doesnt work ? let me know how to write a function on item event on click?
嗨，我有六个项目的列表视图，但是当我在事件上调用 alet 函数时它不起作用？让我知道如何在单击时在项目事件上编写函数？
public class PhotoListView extends ListActivity {
String[] listItems = {"HeadShot", "BodyShot ", "ExtraShot", "Video Take1", "Video Take2", "Video Take3", };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setListAdapter(new ArrayAdapter(this,android.R.layout.simple_list_item_1, listItems));
}
OnListclick
列表点击
ListView Shot = getListView();
protected void onListItemClick(View view) {
if(view == Shot){
AlertDialog.Builder alertbox = new AlertDialog.Builder(this);
// set the message to display
alertbox.setMessage("Please Get Ready");
}
回答by Primal Pappachan
ListView Shot = getListView();
In Shot you have the id for the listview and not for each item in the list.
在 Shot 中，您拥有列表视图的 id，而不是列表中的每个项目的 id。
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
AlertDialog.Builder alertbox = new AlertDialog.Builder(this);
// set the message to display
alertbox.setMessage("Please Get Ready").show();
}
Or you could use ListView::setOnItemClickListener
或者你可以使用 ListView::setOnItemClickListener
public class PhotoListView extends ListActivity implements OnItemClickListener
ListView shot = getListView();
shot.setOnItemClickListener(this);
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
AlertDialog.Builder alertbox = new AlertDialog.Builder(this);
// set the message to display
alertbox.setMessage("Please Get Ready").show();
}
