Delay actions in android

Question

I want to change the image in imageView after 5 seconds from app start.

This is the code that I tried so far:

public class MainActivity extends Activity {
ImageView screen;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    screen=(ImageView)findViewById(R.id.imageView1);

    screen.setImageResource(R.drawable.ic_launcher);

    }
}

Answer 1

You can use a Handler, such as:

Handler handler = new Handler();
handler.postDelayed(new Runnable() {

    @Override
    public void run() {
        // change image
    }

}, 5000); // 5000ms delay

As Sam says in the comments, you could also do this (because all Views have their own handler):

screen.postDelayed(new Runnable() {

    @Override
    public void run() {
        // change image
    }

}, 5000); // 5000ms delay

See the Handler Documentation.

Answer 2

you can try thread like this:

 new Thread(){  
        public void run(){  
            //sleep(5000);
            //refreshSthHere();
        }  
    }.start();