手机APP不能后台同步任务

[caixin1218]

Is this a new feature request?

• I have searched the existing issues

Wanted change

优化手机端APP

Reason for change

手机APP不能后台同步任务，必须要让APP在前台运行才能同步任务。

Proposed code change

No response

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[j0nnymoe]

English please