Disable screen off timeout

一陣子沒動作，就會把lcd 關掉，同時進 suspend。
在 framework/base/services/java/com/android/server/PowerManagerService.java: private class SettingsObserver implements Observer { ........ public void update(Observable o, Object arg) { synchronized (mLocks) { ...... // SCREEN_OFF_TIMEOUT, default to 15 seconds mScreenOffTimeoutSetting = -1;//getInt(SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT); mScreenOffTimeoutSetting = -1;
就可以disable 掉這個 function。