title: How to set layout params to edittext in dialog?
body: <p>I'm trying to set some layout params to an edittext in a dialog but it seems to have no effect. Why? How can I reduce the width of my edittext?</p>
  
  <pre><code>AlertDialog.Builder builder = new AlertDialog.Builder(context);
  builder = new AlertDialog.Builder(context);
  final EditText input = new EditText(context);                    
  LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(20, LinearLayout.LayoutParams.WRAP_CONTENT);
  lp.setMargins(10, 0, 10, 0);  
  input.setLayoutParams(lp); 
  
  builder.setView(input)
  .setCancelable(false)                   
  .setPositiveButton(res.getString(R.string.ok), new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
               //...   
      }
  })
  .setNegativeButton(res.getString(R.string.cancel), new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
          dialog.cancel();
      }
  });
  </code></pre>