How to restart activity using intent?

Question

I am making an android app which plays mp3 files. I am launching the mp3 playing activity from within another activity using intent:

Intent intent=new Intent(ListViewA.this,mp3player.class);
                intent.putExtra("feed",gh);
                i.setFlags(0);
                i.setPackage(null);
                //intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
                startActivity(intent);

Now when the user selects another song from a list, I want to close the previous instance of the mp3player activity and start a new one using the intent code (above). How do I go about doing that? Thanks.

@rickky I have 2 activites: a main activity and a child activity. — vergil corleone, Apr 27 '13 at 17:49
so you are selecting a song in listviewA from there you are calling mp3eplayer activity am i right so you want when you are back to listviewA there you wanna close mp3player activity right???? — Abhijit Chakra, Apr 27 '13 at 17:52

Hoan Nguyen · Answer 1 · 2013-04-27T17:49:50.227

0

Instead of startActivity use startActivityForResult(intent, PLAY_SONG) then you can call finishActivity(PLAY_SONG) where PLAY_SONG is a constant number.

class member

private static final int PLAY_SONG

And then

finishActivity(PLAY_SONG);
Intent intent=new Intent(ListViewA.this,mp3player.class);
intent.putExtra("feed",gh);
i.setFlags(0);
i.setPackage(null);
startActivityForResult(intent, PLAY_SONG)

edited Apr 27 '13 at 17:49

answered Apr 27 '13 at 17:31

Hoan Nguyen

18,033
3
50
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I am new to android, can you please elaborate? – vergil corleone Apr 27 '13 at 17:35
You can refer to http://stackoverflow.com/questions/920306/sending-data-back-to-the-main-activity-in-android for this. – Neoh Apr 27 '13 at 17:38
So what happen now is the mp3player class window is still in foreground when finished playing? – Hoan Nguyen Apr 27 '13 at 17:39
When i select a new song, the previous does not stop playing. – vergil corleone Apr 27 '13 at 17:42
So you need to do what I answered above, let me edited a little bit. – Hoan Nguyen Apr 27 '13 at 17:44
2 instances of the mp3player activity are created, both play different songs. no change from earlier code. – vergil corleone Apr 27 '13 at 18:05
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/29038/discussion-between-hoan-nguyen-and-vergil-corleone) – Hoan Nguyen Apr 27 '13 at 18:08

Abhijit Chakra · Answer 2 · 2013-04-27T18:32:33.947

0

Hey its very simple Instead of calling Intent from Mp3Playeractivity call finish() when you are pressing the back button by implementing

@Override
public void onBackPressed(){
finish();
}

which will cause close your MpeplayerActivity

edited Apr 27 '13 at 18:32

answered Apr 27 '13 at 17:48

Abhijit Chakra

3,201
37
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but i do not want to close the music when the back button is pressed. – vergil corleone Apr 27 '13 at 19:16

How to restart activity using intent?

2 Answers2