handler running then close total activity media file continue how to resolve the problem

I am working android application my problem is i am using handlers this handler running audio files this audiofiles running automatically every 5 seconds i am closing total activity application will be closed but audiofile also running last position file

how to resolve this problem please forward some sugges开发者_如何转开发tion or some solution its urgent i am new developer in android

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try this using separate class in audio and update uihandlers in every 5 seconds finish audio file