Monday, May 30, 2016

[App] Monochrome - Make display B/W on low battery to reduce display power usage

Hi all,

Monochrome turns on monochrome (or black & white) mode when your battery is low, to further reduce display power consumption when your battery level is low. This means your device can last longer when its battery is low. This is most effective on AMOLED devices, like Samsung devices.

Monochrome is triggered when your device's battery level hits the LOW level as defined by the OEM (usually 15%) and Monochrome is triggered again when your battery level hits the OKAY level (usually 30%) as defined by the OEM. When your battery level reaches the LOW state, Monochrome is turned on and when your battery level reaches the OKAY state, Monochrome is turned off. This is all done automatically so you don't have to manage anything.

Monochrome also works on the GPU level, so Monochrome does not implement a hidden/invisible view on top of apps to enforce black and white colors. This means Monochrome does not run in the background and/or constantly monitor your battery level, it's only activated when your battery reaches LOW or OKAY states and after enabling/disabling B/W mode on the GPU level, Monochrome exits.

Monochrome requires ROOT. If you are NOT ROOTED then you need to manually grant WRITE_SECURE_SETTINGS permission to the app by executing the following ADB command:

adb -d shell pm grant com.suyashsrijan.lowbatterymonochrome android.permission.WRITE_SECURE_SETTINGS

Monochrome is a free & open-source app, so you can grab the app and the source code from:

Play Store: http://ift.tt/1O0dt7f
APK: http://ift.tt/25v4gs4
Source code: http://ift.tt/1O0df01


from xda-developers http://ift.tt/25v3J9J
via IFTTT

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