How to use “Wakelock Detector”

beta manualuzumApps 2013

Introduction

In this presentation, We present and explain how to use Wakelock detector by screenshots. Also at the end of slides we show use-cases of finding and solving wakelock issues.

Note: If you don’t know what is “Wakelock” and the purpose of “Wakelock detector” please check out these slides: http://www.slideshare.net/ahikmat1/android-wakelock-detector

This is what you see at first launchActionBar (left to right)

● Wakelock types [Screen,CPU..]● Sorting method [Usage,Active..]● More options [Settings, Refresh.]

Sleep-state statistics (*clickable)● e.g: During 16 hour 43 minutes my phone was

awake 13% (which is pretty bad) *more details in next slide

Wakelock usage by app (*clickable)

● Left side - App info ○ e.g:Google search ○ RED means currently running

● Right side - How long and how many times wakelocks were totally used

○ e.g: used for 1 minute 3 secs 315 times○ blue progressbar shows the usage ratio

compared to awake state

When you click on “Sleep-state” statistics

Visual transformation

Deep sleep : 13 hours 38 min

Screen on:

59min 30sec

Awake: 13%2 hours 4mins

Total awake time: 3 hours 4 mins

Total 16 hours 42 mins

When we expand the app!

The app’s used wakelock info● Left - Wakelock tag(description)

○ Long-press on it for more action● Right - Usage time and count

○ blue progressbar shows the usage ratio compared to awake state

● App info - redirects to Android app info page○ You might Stop or Uninstall the app

● Open - launches the app○ You might change some settings of

the app (sync, update or etc..)● Playstore - redirects to the app on

GooglePlay ○ You might contact developer to inform

wakelock issues

Status info : Running in background or not

Type info: Third-party app or System app

What we got in ActionBar

Screen wakelock - Lists apps which controlled your screen state (e.g: AlarmClocks, Games, VideoPlayers etc..)

CPU wakelock - Lists apps which kept your phone awake (e.g: Messengers, Widgets, Music players etc..)

Wakeup triggers - Lists apps which registered to AlarmManager to do periodic tasks

Sorting by Running state shows the currently active apps on the top

Sorting by Usage (default) sorts the apps by their wakelock usage

ABCD.. sorts by alphabetic order

Refresh - important feature to recognize wakelocks which is being currently used

Settings - Settings, FAQ and more features

Share - share this app with friends andKeep the world GREEN!!!!

Settings windowAdvanced mode is not for only Geeks!

● It is recommended to turn ON this mode● shows “Kernel wakelocks” also frequently mentioned

Android system wakelocks (e.g: *backup*, AlarmManager, AudioOut, AudioIn etc..)

Suppose you did not fully charge for days. In this case wakelock stats gathered for several days. This makes it difficult to find problematic wakelock..

That’s reason why we added “Since unplug” option !!

FAQ - We tried to explain “wakelock” as much as we could! Change theme - Go Green, Change to Dark Theme!

Upgrade - We are making this app FREE!!! Support us by purchasing more features ;) We know those features are not excellent yet, We are working on it !!!

Please email us if there is a bug or other problems!Thank you!

Use case #1Battery drain while phone is idle!

Similar cases:● Phone drastic battery drain in short time● Battery drain when not using phone● Battery die without reason while phone is sleeping● Phone is getting hot and draining battery by itself ● Battery statistics says the phone is awake for a long time

Solution:❖ Turn on “Advanced mode” in WLD Settings❖ Select “CPU wakelocks” and Sort by “Usage”❖ Expand the suspicious app on the top❖ Do some action

➢ Google for the top wakelock tag (e.g: AlarmManager)

➢ Go to “App info” and “Force stop”➢ Uninstall the app if you don’t need it

❖ If you still can not find then select “Kernel wakelocks”, then try googling the suspicious kernel wakelock

Use case #2:Problem “AlarmManager” of Android OS

Similar cases:● AlarmManager wakelock of Android OS is too big and it is

draining my battery● Wakelock “AlarmManager” problem

Solution:❖ Select “Wakeup triggers” (alarm-clock icon) on top❖ These apps are the root cause of “AlarmManager”

wakelock❖ Try to reduce wake-up amount by changing settings

of the apps.➢ e.g: GO Weather EX widget has “Update rate”

settings which can be reduced.➢ Facebook, KakaoTalk, Twitters are

unavoidable❖ or “Force stop” as a temporary solution❖ or Uninstall the app if you never use it

Use case #3:Phone screen turns on by itself

Similar cases:● Phone screen turns on by itself● Phone screen flashes on randomly● Phone screen keeps on by itself randomly● Phone screen switches on constantly by itself

Solution:❖ Select “Screen wakelocks” on top❖ It shows you the apps which acquired screen

wakelock❖ Pay attention to apps which marked as Active❖ Let your phone sleep again❖ Whenever the screen turns on, press “Refresh”

button to see if wakelock time changes in some of apps.

❖ After you find the reason, you can act accordingly

Upcoming more use cases..