Android启动页停留2秒跳转到主页或引导页的最好好实现

gitHub下载地址：      [b]https://github.com/wzqjava/SplashAndGuide[/b]

public class MainActivity extends Activity {
protected static final String tag = "MainActivity";

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

final SharedPreferences sharedPreferences = getSharedPreferences("config", Context.MODE_PRIVATE);

//发送一个颜色的消息
new Handler(){
public void handleMessage(android.os.Message msg) {
//接受到消息后的处理
boolean b = sharedPreferences.getBoolean("is_first",true);

if(b){
//第一次进入应用，进入导航界面
sharedPreferences.edit().putBoolean("is_first", false).commit();
Intent intent = new Intent(MainActivity.this,GuideActivity.class);
startActivity(intent);
Log.i(tag, "是第一次进入");
}else{
//不是第一次进入应用,直接跳转到主界面
Log.i(tag, "是第二次进入");
Intent intent = new Intent(MainActivity.this,HomeActivity.class);
startActivity(intent);
}

finish();
};
}.sendEmptyMessageDelayed(0, 3000);
}