android 4.2 永不休眠补充

--- a/services/java/com/android/server/power/PowerManagerService.java

+++ b/services/java/com/android/server/power/PowerManagerService.java

@@ -1365,6 +1365,7 @@ public final class PowerManagerService extends IPowerManager.Stub

}

private int getScreenOffTimeoutLocked() {

+ int DonotSleeptimeout;

int timeout = mScreenOffTimeoutSetting;

if (isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) {

timeout = Math.min(timeout, mMaximumScreenOffTimeoutFromDeviceAdmin);

@@ -1372,6 +1373,12 @@ public final class PowerManagerService extends IPowerManager.Stub

if (mUserActivityTimeoutOverrideFromWindowManager >= 0) {

timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager);

}

+ DonotSleeptimeout = mScreenOffTimeoutSetting;

+ if(DonotSleeptimeout < 0)

+ {

+ DonotSleeptimeout = mMaximumScreenOffTimeoutFromDeviceAdmin ;

+ return Math.max(DonotSleeptimeout, mMaximumScreenOffTimeoutFromDeviceAdmin);

+ }

return Math.max(timeout, MINIMUM_SCREEN_OFF_TIMEOUT);

}

以前在网上找了很多不休眠不锁屏的方法，那写修改可能对android4.0很有用，android4.2上还得要修改下才行。