android 4.2 永不休眠補充

--- 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);
     }

 

以前在網上找了很多不休眠不鎖屏的方法，那寫修改可能對android4.0很有用，android4.2上還得要修改下才行。