Android 保持屏幕常亮

Android 保持屏幕常亮

Android 保持屏幕常亮：

1. public class WakeLockActivity extends Activity {    
2.     
3.     PowerManager powerManager = null;    
4.     WakeLock wakeLock = null;    
5.     
6.     @Override    
7.     protected void onCreate(Bundle savedInstanceState) {    
8.         super.onCreate(savedInstanceState);    
9.         this.setContentView(R.layout.main);    
10.         this.powerManager = (PowerManager) this    
11.                 .getSystemService(Context.POWER_SERVICE);    
12.         this.wakeLock = this.powerManager.newWakeLock(    
13.                 PowerManager.FULL_WAKE_LOCK, "My Lock");    
14.     }    
15.     
16.     @Override    
17.     protected void onResume() {    
18.         super.onResume();    
19.         this.wakeLock.acquire();    
20.     }    
21.     
22.     @Override    
23.     protected void onPause() {    
24.         super.onPause();    
25.         this.wakeLock.release();    
26.     }    
27.     
28. }    

添加权限：

“<uses-permission android:name="android.permission.WAKE_LOCK" />”