@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.welcome); sharedPreferences = MyApplication.getLocalSharedPreferences(); // 延缓1.5秒进入 new Handler() .postDelayed( new Runnable() { @Override public void run() { boolean isFirst = sharedPreferences.getBoolean("isFirst", true); if (isFirst) { Editor editor = sharedPreferences.edit(); editor.putBoolean("isFirst", false); editor.commit(); Intent intent = new Intent(); intent.setClass(WelcomActivity.this, IntroduceActivity.class); startActivity(intent); } else { Intent intent = new Intent(); intent.setClass(WelcomActivity.this, MainUiActivity.class); startActivity(intent); } } }, 1500); }