How to define frequency of SyncAdapter updates on android?

ContentProvided开发者_开发技巧 defined for synchronization is dummy (in accordance with this approach).

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If API > 8, (95% of devices) use ContentResolver.addPeriodicSync()

If API = 7, (5.5% of devices as of Mar 2102) create a service with a periodic timer callback, and call ContentResolver.requestSync().

API < 6 does not support syncAdapter, so no worries.