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Android应用中使用Popupmenu
最终效果：
页面布局：
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="fill_parent" 4 android:layout_height="fill_parent" 5 android:background="#FFFFFF" 6 android:orientation="vertical" > 7 8 <RelativeLayout 9 android:layout_width="fill_parent"10 android:layout_height="45dp"11 android:background="#303538" >12 <Button13 android:id="@+id/button_showPopup"14 android:layout_width="wrap_content"15 android:layout_height="fill_parent"16 android:layout_alignParentRight="true"17 android:background="#303538"18 android:text="┇"19 android:textColor="#FFFFFF"20 android:textSize="20sp" >21 </Button>22 </RelativeLayout>23 24 </LinearLayout>
Popupmenu布局（文件在menu目录下）：
1 <?xml version="1.0" encoding="utf-8"?> 2 <menu xmlns:android="http://schemas.android.com/apk/res/android" > 3 4 <item 5 android:id="@+id/about" 6 android:orderInCategory="100" 7 android:showAsAction="never" 8 android:title="关于"> 9 </item>10 <item11 android:id="@+id/exit"12 android:orderInCategory="100"13 android:showAsAction="never"14 android:title="退出">15 </item>16 17 </menu>
后台代码：
1 package com.wangzhen.popup; 2 3 import android.app.Activity; 4 import android.os.Bundle; 5 import android.view.MenuItem; 6 import android.view.View; 7 import android.view.View.OnClickListener; 8 import android.view.Window; 9 import android.widget.Button;10 import android.widget.PopupMenu;11 import android.widget.Toast;12 13 public class Main extends Activity implements OnClickListener,14 android.widget.PopupMenu.OnMenuItemClickListener {15 /** Called when the activity is first created. */16 private Button button_showPopup;17 18 @Override19 public void onCreate(Bundle savedInstanceState) {20 super.onCreate(savedInstanceState);21 requestWindowFeature(Window.FEATURE_NO_TITLE);22 setContentView(R.layout.main);23 initViews();24 }25 26 // 初始化控件27 private void initViews() {28 // TODO Auto-generated method stub29 button_showPopup = (Button) findViewById(R.id.button_showPopup);30 button_showPopup.setOnClickListener(this);31 }32 33 public void onClick(View arg0) {34 // TODO Auto-generated method stub35 switch (arg0.getId()) {36 case R.id.button_showPopup:37 PopupMenu pop = new PopupMenu(this, arg0);38 pop.getMenuInflater().inflate(R.menu.menu, pop.getMenu());39 pop.show();40 pop.setOnMenuItemClickListener(this);41 break;42 }43 }44 45 public boolean onMenuItemClick(MenuItem arg0) {46 // TODO Auto-generated method stub47 switch (arg0.getItemId()) {48 case R.id.about:49 Toast.makeText(this, "关于", 1000).show();50 break;51 case R.id.exit:52 finish();53 break;54 }55 return false;56 }57 }
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