WakeLock_WifiLock_Exerciser

Small application to test functionality of WifiLock and WakeLock on Android

EMDK Dependency

Application will run on both Zebra and non-Zebra Android devices. When running on Zebra devices the application will take advantage of MX to enable or disable battery optimizations via buttons on the UI. This does require:

EMDK to be installed on your build machine (https://www.zebra.com/us/en/support-downloads/software/developer-tools/emdk-for-android.html) Version 7.x or higher (though I had it working with EMDK 6.6 in testing)
A device that supports MX7.x which as the numbering implies will be at least Nougat. You can check the MX level from Settings --> About --> SW components --> MX (MXMF version)
A device whose MX supports BatteryOptimization. Some features of MX are not available on Zebra's value tier devices (e.g. TC2x). Please check http://techdocs.zebra.com/mx/ for compatibility.

This only affects the bottom two buttons on the UI which refer to controlling BatteryOptimizations via MX

Repository includes a small python 3 server to receive posts from the application

python dummy-web-server.py

Determine current wake / wifi locks in effect as follows:

adb shell dumpsys power
adb shell dumpsys wifi

Optionally, force the device power state to idle as follows:

adb shell dumpsys battery unplug
adb shell dumpsys deviceidle force-idle
(verify with) adb shell dumpsys deviceidle (& observe mState)

Notes

Uncomment the annotated line in onCreate() to create a separate wake lock on launch
Tested on TC51
Would never pass PlayStore criteria as includes ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
Make sure nothing else on your device holds wake locks before running tests
Zebra devices also have additional settings to keep wifi on during standby (under advanced WiFi settings)

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