Question

我正在创建一个带有ListView的简单对话框。我希望能够访问它的上下文菜单。这是我的基本代码：

  final Dialog dialog = new Dialog(context);
  dialog.setContentView(R.layout.activity_lista);
  dialog.setTitle("Contact");
  ListView  lv = (ListView) dialog.findViewById(R.id.listView);  Cursor cursor = db.readData();
                                   String[] from = new String[]{DatabaseHandler.KEY_contacts, DatabaseHandler.KEY_number};
                                         int[] to = new int[]{R.id.contacts, R.id.number};
                                         @SuppressWarnings("deprecation")
                                         final
                                         SimpleCursorAdapter adapter = new SimpleCursorAdapter(Home.this, R.layout.show, cursor, from, to);
                                         adapter.notifyDataSetChanged();
                                         lv.setAdapter(adapter);
                                        registerForContextMenu(lv);

此处方法onCreateContextMenu：

   @Override
public void onCreateContextMenu(ContextMenu menu, View v,ContextMenu.ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    getMenuInflater().inflate(R.menu.menu_context, menu);

}

最后我重写了onContextItemSelected：

@Override
public boolean onContextItemSelected(MenuItem item) {

    switch (item.getItemId()) {
        case R.id.call:
            Toast.makeText(this,"call" ,Toast.LENGTH_LONG).show();
            return true;

        case R.id.sms:
            Toast.makeText(this,"sms" ,Toast.LENGTH_LONG).show();
            return true;

        case R.id.delete:
            Toast.makeText(this,"delete" ,Toast.LENGTH_LONG).show();
            return true;
        default:
            return super.onContextItemSelected(item);
    }
}

我还尝试在onContextItemSelected（）中覆盖setOnMenuItemClickListener（）

但我的问题仍未解决:(有任何帮助吗？

Answer 1

您可以使用此方法获取项目

 lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
      Object listItem = lv.getItemAtPosition(position);
   } 
});

使用带有ListView的对话框

1 个答案: