CODEWITHSUNDEEP
androidimageaudio
Trooper
Trooper

Reputation: 75

Change background images when audio file is running in the background in android

I'm trying to change images in an android app when an audio file is running in background but I'm getting a problem. Below is my code:

public class SongActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_song);
        final RelativeLayout rel = (RelativeLayout)findViewById(R.id.activity_song);
        MediaPlayer mp = MediaPlayer.create(SongActivity.this,R.raw.thesong);
        mp.start();
        rel.setBackgroundResource(R.drawable.bday);
        Runnable r = new Runnable() {
            @Override
            public void run() {
                synchronized (this){
                try {
                    wait(5000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                }
            }
        };
        Thread test = new Thread(r);
        test.start();
        rel.setBackgroundResource(R.drawable.bday2);
}
}

Please advise if I can modify it or it needs a total overhaul. Thanks in advance.

Upvotes: 3

Views: 87

Answers (2)

singh.indolia
singh.indolia

Reputation: 1291

As I'm seeing your code, you write like:

setContentView(R.layout.activity_song);
        final RelativeLayout rel = (RelativeLayout)findViewById(R.id.activity_song);

here problem is that activity_song this is just a xml layout file name but not a RelativeLayout so change (RelativeLayout)findViewById(R.id.activity_song); it with your RelativeLayout id.then you will get your desire result.

Upvotes: 1

santosh kumar
santosh kumar

Reputation: 2962

In your xml add ID.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:id="@+id/linear_layout">

    </LinearLayout>

In code just replace 

final RelativeLayout rel = (RelativeLayout)findViewById(R.id.activity_song);

with

      final RelativeLayout rel = (RelativeLayout)findViewById(R.id.linear_layout);
      Resources res = getResources();
      Drawable drawable = res.getDrawable(R.drawable.image);
      rel.setBackground(drawable);

Upvotes: 2

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