关于屏幕解锁的实例

AndroidManifest.xml加两个权限
Java代码 
<uses-permission android:name="android.permission.DISABLE_KEYGUARD"></uses-permission>  
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission> 


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

Android屏幕解锁:
KeyguardManager keyguardManager = (KeyguardManager)getSystemService(KEYGUARD_SERVICE); 
        KeyguardLock keyguardLock = keyguardManager.newKeyguardLock(""); 
        keyguardLock.disableKeyguard();
Android 点亮屏幕:
PowerManager pm = (PowerManager)getSystemService(POWER_SERVICE); 
WakeLock mWakelock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP |PowerManager.SCREEN_DIM_WAKE_LOCK, "SimpleTimer"); 
mWakelock.acquire(); 
//... 
mWakelock.release();//关闭
Java代码 
import android.app.KeyguardManager;    
import android.content.Context;    
import android.os.PowerManager;    
     
public class ScreenLockManager {    
   private Context mContext;    
   private KeyguardManager.KeyguardLock mKeyguardLock;    
   private boolean isScreenLock;    
   private PowerManager.WakeLock mWakelock;    
   public ScreenLockManager(Context context) {    
     mContext = context;    
   }    
   public void getUnlock() {    
     // acquire wake lock    
     PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);    
     mWakelock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.ON_AFTER_RELEASE, "SimpleTimer");    
     mWakelock.acquire();    
     // unlock screen    
     KeyguardManager km = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE);    
     mKeyguardLock = km.newKeyguardLock(Log.TAG);    
     if (km.inKeyguardRestrictedInputMode()) {    
       mKeyguardLock.disableKeyguard();    
       isScreenLock = true;    
     } else {    
       isScreenLock = false;    
     }    
   }    
   public void releaseUnlock() {    
     // release screen    
     if (isScreenLock) {    
       mKeyguardLock.reenableKeyguard();    
       isScreenLock = false;    
     }     
     // release wake lock    
     if (mWakelock.isHeld()) {    
       mWakelock.release();    
     }    
   }    
------------    
public class Log {    
           public static final String TAG = "SimpleTimer";    
           public static void v(String msg){    
             android.util.Log.v(TAG, msg);    
           }    
           public static void d(String msg){    
             android.util.Log.d(TAG, msg);    
           }    
           public static void e(String msg){    
             android.util.Log.e(TAG, msg);    
           }    
           public static void e(Exception e){    
             android.util.Log.e(TAG, e.getMessage(),e);    
           }    
         }