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[英]I want to make an on click listner in such a way that when i select an item from drop down menu it goes to the desired page in android studio
[英]Android cannot show menu drop down when click
我想在單擊列表視圖項時顯示菜單列表,我可以獲取對象,但是無法顯示菜單。 你能看看我的代碼嗎? 謝謝!
public View onCreateView
(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mActivity = this.getActivity();
View root = inflater.inflate(R.layout.orders, container, false);
adapter = new OrdersItemAdapter(root.getContext(), R.layout.order_row);
final ListView list = (ListView) root.findViewById(R.id.order_list);
list.setAdapter(adapter);
mActivity.registerForContextMenu(list);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// Toast.makeText(parent.getContext(), "view clicked: " + arr[0], Toast.LENGTH_SHORT).show();
mActivity.registerForContextMenu(list);
mActivity.openContextMenu(view);
view.showContextMenu();
String str = list.getItemAtPosition(position).toString();
System.out.println(str);
}
});
refresh();
return root;
}
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
this.onCreateContextMenu(menu, v, menuInfo);
System.out.println("...on create context android.view.MenuItem...");
menu.add(0, v.getId(), 0, "Action 1");
menu.add(0, v.getId(), 0, "Action 2");
}
在onCreateView(...)中調用setHasOptionsMenu(true)
)
https://developer.android.com/reference/android/app/Fragment.html#setHasOptionsMenu(boolean)
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