Android Music App problems

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Hello,

I am making an application which plays some music. I used the Media player class and got it working. I also added extra function via menu button pressed.
1st problem:
I start the music... I have another screen to which i jump with the help of an intent (when menu item pressed). The problem is when I jump back with an intent to mymedia player, i can start the music all over again, it doesn't return to the state in which it was when I jumped to another activity resulting in 2 music files simultaneously playing.
How can I return to the state I left the application when I pressed the menu button?

2nd problem:
I want my media player playing in the background when I press the back button, and when I start the application again, to be in the same state I left it when I pressed the back button.

Thanks for your help in advance!

Posted 9-Jun-11 23:50pm

Alfie Torok

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2 solutions

Solution 1

I am guessing here, but check that you are not inadvertently creating a new instance of the media player when you call back to it.

Posted 10-Jun-11 1:14am

Nagy Vilmos

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Alfie Torok 10-Jun-11 7:26am

It only loads the media player when onCreate() is called, and that is called every time the activity starts...how can I go around this?

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TorstenH. · Accepted Answer · 2011-06-10T02:21:00

You have to save the state of your buttons.

Set up a facade for this ( Facade Pattern @ wikipedia[^] ) and store the state of all buttons, menues, and what else needs to be remembered in there (also see the article from Nagy "The Secret Classes or How I Stopped Counting and Loved the Enumerator"[^]).

The facade has to be set up when the app starts and should be disposed when the app exits.

regards
Torsten