Android: Close activity when new is started?

Question

I am making a music player and I have a list with all the music. When you click on one it opens a new activity and plays the song, but if I go back to the list and choose another song it doesnt stop the first. How do I make it stop the music or close the first activity when I play a new song?

I have tried setting the launchMode to "singleTask" but that didnt work ..

How are you starting the music track? – Chris Dec 02 '11 at 17:44 — Chris, Dec 02 '11 at 17:44

Lukas Knuth · Accepted Answer · 2011-12-02T20:49:44.427

3

You can call finish() your Music playing activity in the onStop()-method. This will close the Activity and open a new one after you choose a new song to play.

A better way of doing this (since you're creating a multimedia player) would be to play the music in a Service (not in an Activity) and simply use the "player"-activity or the "playlist"-activity to change the played sound.

This way, the user can leave your app and still listen to his music. Also, it enables him to browser his music for a new track while listen to something else.

To communicate with your Service, you'll need to "bind" it. In your case, I'd suggest a Binder to do so. Read the "Bound Service"-article from the docs for more information/examples.

edited Dec 02 '11 at 20:49

answered Dec 02 '11 at 17:26

Lukas Knuth

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How do I get the music duration to make a seekbar if the music is playing in a Service? – Piratkopia13 Dec 02 '11 at 17:56
You can use messaging to do that: http://stackoverflow.com/questions/6369287/accessing-ui-thread-handler-from-a-service – Lukas Knuth Dec 02 '11 at 18:01
How do I pause and resume the music in a Service? Thanks for your answers! – Piratkopia13 Dec 02 '11 at 19:34
A nice tutorial can be found here: http://www.helloandroid.com/tutorials/musicdroid-audio-player-part-ii – Lukas Knuth Dec 02 '11 at 19:54
I get a lot of errors with that code, one of them: android.os.BinderNative does'nt exist. Is that tutorial working with android 2.2 and up? – Piratkopia13 Dec 02 '11 at 20:38
Not sure, I haven't tested it. I updated my post, have a look at it. – Lukas Knuth Dec 02 '11 at 20:50
Thanks, I'll have a look at that. – Piratkopia13 Dec 02 '11 at 21:04

Android: Close activity when new is started?

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