2. Open the app you want to use, and then tap the Recent button
at the button of the screen to enter the Recent screen.
3. Tap the Menu button in the upper right corner of the app
screen, and then tap Pin.
Note: Screen pinning will affect functions such as incoming calls
and alarms.
Battery
Go to Settings > Battery to view battery details and set battery
preferences.
Save power: Optimize battery life by turning off some apps.
Power saving mode: Enable this to extend battery life. Battery
saver will turn off some device features and restrict apps.
You can choose to manually turn it on or select Turn off when
fully charged.
App battery management:
1. Allow foreground activity: you can turn this function off to save
battery power. However, this app may not run properly and
app notifications may be delayed.
2. Allow all background activity: When turned on, no background
activity for this app will be restricted. This may consume more
battery power.