图片显示几秒，自动转换界面

public class MainActivity extends Activity {

private static final int DELAY_TIME = 2000;
private Button button;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

new Handler().postDelayed(new Runnable(){
@Override
public void run(){
Intent intent = new Intent(MainActivity.this, Login.class);
startActivity(intent);
overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
MainActivity.this.finish();
}
}, DELAY_TIME);

}

}