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Changing background image on button click android app development

I am trying to change the background image of an activity on button click, but not being able to do so. Can you guys tell me how can I can do that?

Button b = (Button) findViewById(R.id.button1); b.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { Activity activity = Selection.this; //Drawable db = Drawable..createFromPath(R.drawable.love1); // The below line gives error because setbackgroundImage // is supposed to take a drawable object as an argument. // Now what to do? activity.findViewById(android.R.id.content) .setBackground(Drawable.createFromPath("res/love1.jpg")); // What to do to correct the above line? mySong = MediaPlayer.create(Selection.this, R.raw.song1); mySong.start(); } catch(Exception ee){ TextView tv = (TextView) findViewById(R.id.textView1); tv.setText(ee.getMessage()); } } });

I tried with Color.RED using setBackgroundColor but that too is not working. PS: I have not changed anything in the xml file for accomplishing this.

Answer1:

I think the easiest way is to use layout in your xml file for your activity.. for example:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/linearLayoutID" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/background_img1" >

and then change it from your Activity when you want e.g. after the button click:

LinearLayout mLinearLayout = (LinearLayout) findViewById(R.id.linearLayoutID); mLinearLayout.setBackgroundResource(R.drawable.background_img2);

Answer2:

Change <strong>setBackground(Drawable)</strong> to <strong>setBackgroundResource(R.drawable.filename)</strong>

Answer3:

LinearLayout mLinearLayout = (LinearLayout) findViewById(R.id.LayoutID); mLinearLayout.setBackgroundResource(R.drawable.image_name);

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