留意係，有5M free space(雖然好少)，攞16k時發生Out Of Memory。
java.lang.OutOfMemoryError: Failed to allocate a 16396 byte allocation
with 5746272 free bytes and 111MB until OOM
at com.android.internal.util.FastXmlSerializer.(FastXmlSerializer.java:55)
at com.android.internal.util.XmlUtils.writeMapXml(XmlUtils.java:183)
at android.app.SharedPreferencesImpl.writeToFile(SharedPreferencesImpl.java:597)
at android.app.SharedPreferencesImpl.access$800(SharedPreferencesImpl.java:51)
at android.app.SharedPreferencesImpl$2.run(SharedPreferencesImpl.java:512)
at android.app.SharedPreferencesImpl.enqueueDiskWrite(SharedPreferencesImpl.java:533)
at android.app.SharedPreferencesImpl.access$100(SharedPreferencesImpl.java:51)
at android.app.SharedPreferencesImpl$EditorImpl.commit(SharedPreferencesImpl.java:455)
at com.headuck.headuckblocker.bj.a(Unknown Source)
at com.headuck.headuckblocker.UpdateService.e(Unknown Source)
at com.headuck.headuckblocker.UpdateService.a(Unknown Source)
at x.a.onHandleIntent(Unknown Source)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.os.HandlerThread.run(HandlerThread.java:61)
Samsung Galaxy S5, Android 5.0, 玩緊games時background發生，background無UI無bitmap的。上面OutOfMemory時已經background update完，update緊status準備quit。
問左條問題，睇下有無高人指點。