android应用添加欢迎界面

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;

/**
* Created by Shuai on 2015/11/26.
*/

public class Splash extends Activity {

private final int SPLASH_DISPLAY_LENGHT = 1000;

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

new Handler().postDelayed(new Runnable() {
public void run() {
Intent mainIntent = new Intent(Splash.this, MainActivity.class);
Splash.this.startActivity(mainIntent);
Splash.this.finish();
}

}, SPLASH_DISPLAY_LENGHT);
}
}