java无法实例化PopupMenu类型。OnMenuItemClickListener
现在,我正在尝试使用Android 3.0(API 11)ECLIPSE执行另一个弹出项目。 但我有错误。无法实例化类型PopupMenu。OnMenuItemClickListener主活动。爪哇
&
类型PopupMenu中的方法getMenuInflater()不适用于参数(int,Object)MainActivity。java)
任何帮助都将不胜感激。谢谢
package com.example.indicationsss;
import 安卓.os.Bundle;
import 安卓.app.Activity;
import 安卓.view.Menu;
import 安卓.view.MenuItem;
import 安卓.view.View;
import 安卓.widget.PopupMenu;
import 安卓.widget.Toast;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onPopupBtClick (View view) {
PopupMenu menu = new PopupMenu(this, view);
menu.getMenuInflater().inflate(R.menu.activity_main, menu.getMenu());
menu.setOnMenuItemClickListener(**new PopupMenu.OnMenuItemClickListener**());
}
public boolean onMenuItemClick(MenuItem item) {
Toast toast = Toast.makeText (MainActivity.this,
item.getTitle() + "was pressed",
Toast.LENGTH_SHORT);
toast.show();
return true;
}
}
# 1 楼答案
在onPopupPtlick()中,声明您自己的popupListener接口,如下所示:
menu.setOnMenuItemClickListener(popupListener );
然后在活动的其他位置(但在OnPopupUptClick()之外)实现接口: