android - AlarmManager or Broadcast receiver battery widget -

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which solution better battery widget. broadcast receiver or alarmmanager trigered every 5 minutes?

that depends upon definition of "better".

you cannot register action_battery_changed broadcasts manifest, have have service running all time manages dynamically-registered receiver broadcast. many users dislike this.

alarmmanager avoids need continuously-running service, mean app widget lag bit on finding out of battery level changes. however, allow user control polling frequency, via sharedpreference, rather hard-coding 5 minutes. way, user in control on how cpu/battery consumed app polling, , therefore in control on how lag there be.


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