代码实现预期功能是:在应用开始五秒钟后,变化imageView的图片。
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);
}
}
应该怎么成功延迟?谢谢帮忙