PopupWindow的使用

 1 public class PopUpActivity extends Activity { 
 2 
 3       /** Called when the activity is first created. */ 
 4 
 5       @Override 
 6 
 7       public void onCreate(Bundle savedInstanceState) { 
 8 
 9           super.onCreate(savedInstanceState); 
10 
11           setContentView(R.layout.main); 
12 
13           LayoutInflater inflater = LayoutInflater.from(this); 
14 
15           // 引入窗口配置文件 
16 
17           View view = inflater.inflate(R.layout.main2, null); 
18 
19           // 创建PopupWindow对象 
20 
21           final PopupWindow pop = new PopupWindow(view, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, false); 
22 
23           Button btn = (Button) findViewById(R.id.btn); 
24 
25           // 需要设置一下此参数，点击外边可消失 
26 
27           pop.setBackgroundDrawable(new BitmapDrawable()); 
28 
29           //设置点击窗口外边窗口消失 
30 
31           pop.setOutsideTouchable(true); 
32 
33           // 设置此参数获得焦点，否则无法点击 
34 
35           pop.setFocusable(true); 
36 
37           btn.setOnClickListener(new OnClickListener() { 
38 
39              
40 
41               @Override 
42 
43               public void onClick(View v) { 
44 
45                   if(pop.isShowing()) { 
46 
47                       // 隐藏窗口，如果设置了点击窗口外小时即不需要此方式隐藏 
48 
49                       pop.dismiss(); 
50 
51                   } else { 
52 
53                       // 显示窗口 
54 
55                       pop.showAsDropDown(v); 
56 
57                   } 
58                  
59 
60               } 
61 
62           }); 
63 
64       } 
65 
66     }

main.xml

 1 <?xml version="1.0" encoding="utf-8"?> 
 2 
 3     <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 4 
 5       android:layout_width="fill_parent" 
 6 
 7       android:layout_height="fill_parent" 
 8 
 9       android:orientation="vertical" > 
10  
11 
12       <Button 
13 
14           android:id="@+id/btn" 
15 
16           android:layout_width="wrap_content" 
17 
18           android:layout_height="wrap_content" 
19 
20           android:text="dianji" /> 
21 
22  
23 
24     </LinearLayout>

main2.xml

<?xml version="1.0" encoding="utf-8"?> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 

  android:layout_width="fill_parent" 

  android:layout_height="fill_parent" 

  android:orientation="vertical" > 

 

  <Button 

      android:id="@+id/a" 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="AAAAA" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="BBBBB" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="CCCCC" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="DDDDD" /> 

 

</LinearLayout>

转自：http://blog.csdn.net/android_xiaoqi/article/details/7618895