How to set focus on a view when a layout is created and displayed?

Question

Currently, I have a layout which contains a Button, a TextView and an EditText. When the layout is displayed, the focus will be automa

Answer 1

To set focus, delay the requestFocus() using a Handler.

private Handler mHandler= new Handler();

public class HelloAndroid extends Activity {
   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);

     LinearLayout mainVw = (LinearLayout) findViewById(R.id.main_layout);

     LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( 
           LinearLayout.LayoutParams.FILL_PARENT,
           LinearLayout.LayoutParams.WRAP_CONTENT);

     EditText edit = new EditText(this);
     edit.setLayoutParams(params);
     mainVw.addView(edit);

     TextView titleTv = new TextView(this);
     titleTv.setText("test");
     titleTv.setLayoutParams(params);
     mainVw.addView(titleTv);

     mHandler.post(
       new Runnable() 
       {
          public void run() 
          {
            titleTv.requestFocus();
          } 
       }
     );
   }
}