오류 - 스플래시 화면, android app

Question

나는 안드로이드 초보자입니다.

내 안드로이드 앱을위한 스플래시 화면을 만들고 싶습니다. 스플래시 화면이 끝나면 내 앱이 계속되지 않습니다. 애플리케이션이 중지되었습니다. 문제가 어디에 있습니까?

여기 여기 내 SplashScreen.java

public class SplashScreen extends AppCompatActivity { 
    private static int SPLASH_TIME_OUT = 1500; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_splash_screen); 

     new Handler().postDelayed(new Runnable() { 
      @Override 
      public void run() { 
       Intent i = new Intent(SplashScreen.this, MainActivity.class); 
       startActivity(i); 
       finish(); 
      } 
     }, SPLASH_TIME_OUT); 
    }} 

을 년대 AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?> 
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
     package="com.example.marcin.wirtualnyportfel"> 

     <application 
      android:allowBackup="true" 
      android:icon="@mipmap/ic_launcher" 
      android:label="@string/app_name" 
      android:supportsRtl="true" 
      android:theme="@style/AppTheme"> 
      <activity 
       android:name=".SplashScreen" 
       android:label="@string/app_name" 
       android:screenOrientation="portrait" 
       android:theme="@style/AppTheme.NoActionBar"> 
       <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 

        <category android:name="android.intent.category.LAUNCHER" /> 
       </intent-filter> 
      </activity> 

입니다 그리고 여기에 로그 캣에게

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.marcin.wirtualnyportfel/com.example.marcin.wirtualnyportfel.MainActivity}: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) 
        at android.app.ActivityThread.-wrap12(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6077) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
       Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead. 
        at android.support.v7.app.AppCompatDelegateImplV9.setSupportActionBar(AppCompatDelegateImplV9.java:199) 
        at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:130) 
        at com.example.marcin.wirtualnyportfel.MainActivity.onCreate(MainActivity.java:34) 
        at android.app.Activity.performCreate(Activity.java:6664) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)  
        at android.app.ActivityThread.-wrap12(ActivityThread.java)  
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)  
        at android.os.Handler.dispatchMessage(Handler.java:102)  
        at android.os.Looper.loop(Looper.java:154)  
        at android.app.ActivityThread.main(ActivityThread.java:6077)  
        at java.lang.reflect.Method.invoke(Native Method)  
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)  
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 

Answer 1

유 간다 당신의 MainActivity에 대한 자체 android:theme="@style/AppTheme.NoActionBar"