Android PopupMenu弹出菜单的实现

Android PopupMenu弹出菜单的实现

（1）布局文件：用于弹出菜单的处罚button：

（2）res-menu目录下的main.xml文件：

（3）类的文件：

package com.example.menu_popupmenu; 
 
import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.PopupMenu; 
 
public class MainActivity extends Activity { 
 
  private Button button; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
  } 
 
  public void showPopup(View view) { 
    PopupMenu popupMenu = new PopupMenu(MainActivity.this, view); 
    popupMenu.getMenuInflater().inflate(R.menu.main, popupMenu.getMenu()); 
    popupMenu.show(); 
  } 
 
  @Override 
  public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
  } 
 
} 

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