title: Specify height width of the view to support multiple screen sizes?
body: <p>I have created the activity with a button. I need to specify the height and width of the button like below.</p>
  
  <pre><code> Button btn=new Button(this);
   btn.setWidth(100); 
   btn.setHeight(100);
  </code></pre>
  
  <p>For multiple screen support is it a right way to specify the size of the view . Guide me to set the height and width to the view.</p>