应用层调哪个接口可以实用睡眠/唤醒

Question

应用程序想模仿Power键的睡眠/唤醒，请问分别是哪个接口，求高手指点

Answer 1

public class ScreenLock {

/**
 * 唤醒屏幕
 */
public static void wakeup(Context context){
PowerManager mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wakeLock = mPowerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "Gank");
//唤醒
wakeLock.acquire();
}
/**
 * 使屏幕休眠
 */
public static void sleep(Context context){
PowerManager mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wakeLock = mPowerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "Gank");
//休眠
wakeLock.release();
}
/**
 * 判断屏幕的状态
 * @return ：  
 */
public static boolean isScreenOn(Context context){
PowerManager mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
return mPowerManager.isScreenOn();
} /**
 * 锁屏
 */
public static void lockKeyguard(Context context){
KeyguardManager mKeyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
KeyguardLock mKeyguardLock = mKeyguardManager.newKeyguardLock("");
mKeyguardLock.reenableKeyguard();//锁
}
/**
 * 解锁 
 */
public static void unLockKeyguard(Context context){
KeyguardManager mKeyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
KeyguardLock mKeyguardLock = mKeyguardManager.newKeyguardLock("");
mKeyguardLock.disableKeyguard();
}

Answer 2

一调休眠方法，android就重启:
W/dalvikvm( 2214): threadid=9: thread exiting with uncaught exception (group=0x2aac0560)
E/AndroidRuntime( 2214): *** FATAL EXCEPTION IN SYSTEM PROCESS: android.server.ServerThread
E/AndroidRuntime( 2214): java.lang.RuntimeException: WakeLock under-locked Gank
E/AndroidRuntime( 2214):        at android.os.PowerManager$WakeLock.release(PowerManager.java:307)
E/AndroidRuntime( 2214):        at android.os.PowerManager$WakeLock.release(PowerManager.java:282)
E/AndroidRuntime( 2214):        at com.android.internal.policy.impl.GlobalActions$5.onPress(GlobalActions.java:340)
E/AndroidRuntime( 2214):        at com.android.internal.policy.impl.GlobalActNot all allocated memory blocks were freed. Doing it now.
ions.onClick(GlobalActions.java:Freeing list entry #0, gpuaddr=86300000
436)
E/AndroidRuntime( 2214):        Freeing list entry #1, gpuaddr=86301000
at com.android.internal.app.AlerFreeing list entry #2, gpuaddr=86311000
tController$AlertParams$3.onItemFreeing list entry #3, gpuaddr=86343000
Freeing list entry #7, gpuaddr=86354000E/AndroidRuntime( 2214):        at anFreeing list entry #630, gpuaddr=86366000
droid.widget.AdapterView.performFreeing list entry #683, gpuaddr=86566000
ItemClick(AdapterView.java:284)
E/AndroidRuntime( 2214):        at analarm_release: clear alarm, pending 0
droid.widget.ListView.performItealarm_release: clear alarm, pending 0
mClick(ListView.java:3513)
E/Analarm_release: clear alarm, pending 0
droidRuntime( 2214):    at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
E/AndroidRuntime( 2214):        at android.os.Handler.handleCallback(Handler.java:587)
Erequest_suspend_state: on (0->0) at 103498106628 (1970-01-02 00:01:30.949676750 UTC)
/AndroidRuntime( 2214):         at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime( 2214):        at android.os.Looper.loop(Looper.java:130)
E/AndroidRuntime( 2214):        at com.android.server.ServerThread.run(SystemServer.java:554)
I/Process ( 2214): Sending signal. PID: 2214 SIG: 9
D/dalvikvm( 2417): GC_CONCUsgtl5000_hw_read: read reg error : Reg 0x0e
RRENT freed 417K, 51% free 2837Kinit: untracked pid 2132 exited
/5703K, external 716K/1038K, pausgtl5000_write: write reg error : Reg 0x0e = 0x000c
sed 5ms+3ms
I/ServiceManager( 2130): service 'SurfaceFlinger' died
I/ServiceManager( 2130): service 'sensorservice' died

Answer 3

sleep: PowerManagerService::goToSleepwakeup:这个软件搞不定，除非借助于RTC(alarm)硬件的帮助才行，因为sleep后CPU都不工作了，
        软件已经无能为力了

Answer 4

goToSleep估计要root权限，你先试一下