android - progress bar in appwidget for a playback service -

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i wanted display progress bar in appwidget displays playback progress background service. know appwidget supports control, wondering how might go updating progress bar in way consistent widget design (e.g. low battery consumption). way in activity polling playback on timer. haven't implemented yet, not sure if work in appwidget. know better me?

have service update app widget's remoteviews when sufficient time has elapsed make worthwhile update.


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