如何在android中添加啓動屏幕以及Intro Screen？

Question

public class MainActivity extends AppCompatActivity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    SharedPreferences getPrefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext()); 
    boolean isStart = getPrefs.getBoolean("firstStart",true); 
    if(!isStart){ 
     new Handler().postDelayed(new Runnable() { 
      @Override 
      public void run() { 
       Intent homeIntent = new Intent(MainActivity.this,HomeAcitivity.class); 
       startActivity(homeIntent); 
       finish(); 
      } 
     },3000); 
    } 
    else{ 
     Intent intent = new Intent(MainActivity.this,IntroActivity.class); 
     startActivity(intent); 

    } 

    SharedPreferences.Editor e =getPrefs.edit(); 
    e.putBoolean("firstStart",false); 
    e.apply(); 

} 

}

我在Android應用程序開發初學者。我想在用戶進入屏幕時第一次顯示Intro屏幕（使用AppIntro庫），並且從第二次開始，應用程序應顯示啓動屏幕？

我遇到以下錯誤，當我遵循上面的代碼？

FATAL EXCEPTION: Thread-23386 


    Process: gajapathy.com.volunteers, PID: 17022 
                      java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() 
at android.os.Handler.<init>(Handler.java:200)` at android.os.Handler.<init>(Handler.java:114) 
                       at gajapathy.com.volunteers.MainActivity$1.run(MainActivity.java:27) 
                       at java.lang.Thread.run(Thread.java:818)` 

Answer 1

請使用此代碼它會爲你工作，並修改一點如果不能滿足您的期望

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //Fabric.with(this, new Crashlytics()); 
    setContentView(R.layout.activity_splash); 


    Thread timerThread = new Thread(){ 
     public void run(){ 
      try{ 
       sleep(3000); 
      }catch(InterruptedException e){ 
       e.printStackTrace(); 
      }finally{ 

        SharedPreferences getPrefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext()); 
        boolean isStart = getPrefs.getBoolean("firstStart",true); 

       if (!isStart){ 
         Intent homeIntent = new Intent(MainActivity.this,HomeAcitivity.class); 
         startActivity(homeIntent); 
         finish(); 
       }else{ 
         Intent intent = new Intent(MainActivity.this,IntroActivity.class); 
         startActivity(intent); 
       } 

       SharedPreferences.Editor e =getPrefs.edit(); 
       e.putBoolean("firstStart",false); 
       e.apply(); 
      } 
     } 
    }; 
    timerThread.start(); 
}