title: How to set background to a random color at button press in Android?
body: <p>I'm writing an app which changes the background color of the activity each time you press the button. And this is what I have till now. But it is not working! What am I doing wrong?</p>
  
  <pre><code>public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
  
      Button b = (Button) findViewById(R.id.button1);        
      final View a = findViewById(R.id.m);        
      final Random color = new Random();
      final Paint p = new Paint();
  
  
      b.setOnClickListener(new OnClickListener() {
  
  
          @Override
          public void onClick(View v) {
  
               p.setARGB(256,color.nextInt(256),color.nextInt(256),color.nextInt(256));                  
          a.setBackgroundColor((p.getColor()));
  
          }
      });
  }
  </code></pre>
  
  <p>It's working when I pass a single color, for example a.setBackgroundColor(Color.GREEN); </p>