Some tips on Android code

1) View state save and restore
Dispatchrestoreinstancestate
Onrestoreinstancestate
Onsaveinstancestate

2) service use of front desk services
Startforeground (notification_id, mnotification)
Stopforeground (True)

3) Avoid internal getters/setters avoid internal Get/set accessors
Direct access to member variables is 3 times times faster than using the Get method when JIT is not used. When using JIT, direct access to member variables is as efficient and inexpensive as using local variables, and its access speed can be increased by 7 times times. using Proguard to configure an inline accessor can achieve both effects, both good code structure and fast access speed. (I have not played this inline accessor)

Some tips on Android code