Splashscreen n'apparaît pas, L'activité principale est

Question

J'ai codé un Quiz App, maintenant je suis en train de préparer les dernières étapes pour mon application.J'ai pensé qu'un écran Splash serait une bonne idée. J'ai donc ajouté une activité Splash Screen à mon programme et je l'ai mis en place, maintenant quand je commence à démarrer mon application, l'écran de démarrage n'apparaît pas. Où est l'erreur?

Activité principale (QuizActivity):

 public class QuizActivity extends AppCompatActivity { 

private DrawerLayout mDrawerLayout; 
private ActionBarDrawerToggle mToggle; 
private Toolbar mToolbar; 
private MenuItem menuItem; 
private Intent in; 

private QuestionLibrary mQuestionLibrary = new QuestionLibrary(); 

private TextView mScoreView; 
private TextView mQuestionView; 
private Button mButtonChoice1; 
private Button mButtonChoice2; 
private Button mButtonChoice3; 

private String mAnswer; 
private int mScore = 0; 
private int mQuestionNumber = 0; 


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


    //Randromize the row of the questions 
    QuestionLibrary q = new QuestionLibrary(); 
    System.out.printf("Question:0 Choice:(%s, %s, %s) Answer:%s%n", 
      q.getChoice1(0), q.getChoice2(0), q.getChoice3(0), q.getCorrectAnswer(0)); 
    q.shuffle(); 
    System.out.printf("Question:0 Choice:(%s, %s, %s) Answer:%s%n", 
      q.getChoice1(0), q.getChoice2(0), q.getChoice3(0), q.getCorrectAnswer(0)); 
    mQuestionLibrary.shuffle(); 
    //End randomizer 

    mToolbar = (Toolbar) findViewById(R.id.nav_action); 

    setSupportActionBar(mToolbar); 

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); 

    mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close); 
    mDrawerLayout.addDrawerListener(mToggle); 
    mToggle.syncState(); 
    getSupportActionBar().setDisplayHomeAsUpEnabled(true); //Able to see the Navigation Burger "Button" 


    NavigationView mNavigationView = (NavigationView) findViewById(R.id.nv1); 
    mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener(){ 
     @Override 
     public boolean onNavigationItemSelected(MenuItem menuItem){ 
      switch (menuItem.getItemId()){ 
       case(R.id.nav_stats): 
        Intent accountActivity = new Intent(getApplicationContext(),Menu2.class); 
        startActivity(accountActivity); 
      } 
      return true; 
     } 
    }); 



     mScoreView = (TextView) findViewById(R.id.score_score); 
     mQuestionView = (TextView) findViewById(R.id.question); 
     mButtonChoice1 = (Button) findViewById(R.id.choice1); 
     mButtonChoice2 = (Button) findViewById(R.id.choice2); 
     mButtonChoice3 = (Button) findViewById(R.id.choice3); 


     updateQuestion(); 

     //Start of Button Listener1 
     mButtonChoice1.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       //My logic for Button goes in here 

       if (mButtonChoice1.getText() == mAnswer) { 
        mScore = mScore + 1; 
        updateScore(mScore); 
        updateQuestion(); 



        //This line of code is optional... 
        Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show(); 
       } else { 
        Toast.makeText(QuizActivity.this, "Wrong... Try again!", Toast.LENGTH_SHORT).show(); 


        Intent intent = new Intent(QuizActivity.this, Menu2.class); 
        intent.putExtra("score",mScore); //pass score to Menu2 
        startActivity(intent); 




       } 
      } 


     }); 
     //End of Button Listener1 

     //Start of Button Listener2 
     mButtonChoice2.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       //My logic for Button goes in here 

       if (mButtonChoice2.getText() == mAnswer) { 
        mScore = mScore + 1; 
        updateScore(mScore); 
        updateQuestion(); 




        //This line of code is optional... 
        Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show(); 
       } else { 
        Toast.makeText(QuizActivity.this, "Oh... wrong your score is 0", Toast.LENGTH_SHORT).show(); 

        Intent intent = new Intent(QuizActivity.this, Menu2.class); 
        intent.putExtra("score",mScore); //pass score to Menu2 
        startActivity(intent); 




       } 
      } 


     }); 
     //End of Button Listener2 

     //Start of Button Listener3 
     mButtonChoice3.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       //My logic for Button goes in here 

       if (mButtonChoice3.getText() == mAnswer) { 
        mScore = mScore + 1; 
        updateScore(mScore); 
        updateQuestion(); 




        //This line of code is optional... 
        Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show(); 
       } else { 
        Toast.makeText(QuizActivity.this, "Come on, that was not so hard...", Toast.LENGTH_SHORT).show(); 

        Intent intent = new Intent(QuizActivity.this, Menu2.class); 
        intent.putExtra("score",mScore); //pass score to Menu2 
        startActivity(intent); 




       } 
      } 


     }); 
     //End of Button Listener3 

    } 


private void updateQuestion() { 

    if (mQuestionNumber < mQuestionLibrary.getLength()) { 
     mQuestionView.setText(mQuestionLibrary.getQuestion(mQuestionNumber)); 
     mButtonChoice1.setText(mQuestionLibrary.getChoice1(mQuestionNumber)); 
     mButtonChoice2.setText(mQuestionLibrary.getChoice2(mQuestionNumber)); 
     mButtonChoice3.setText(mQuestionLibrary.getChoice3(mQuestionNumber)); 

     mAnswer = mQuestionLibrary.getCorrectAnswer(mQuestionNumber); 
     mQuestionNumber++; 
    } 
    else { 
     Toast.makeText(QuizActivity.this, "Last Question! You are very intelligent!", Toast.LENGTH_SHORT).show(); 
     Intent intent = new Intent(QuizActivity.this, Menu2.class); 
     intent.putExtra("score",mScore); //pass score to Menu2 
     startActivity(intent); 


    } 

} 

    private void updateScore (int point){ 
     mScoreView.setText("" + mScore); 

    } 


    @Override //Makes that the "Burger" Item, shows the Drawer if someone clicks on the simbol 
    public boolean onOptionsItemSelected (MenuItem item){ 
     if (mToggle.onOptionsItemSelected(item)) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

} 

écran Splash (Splash)

public class Splash extends AppCompatActivity { 


    //Splash screen start 

    private static int SPLASH_TIME_OUT = 4000; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_splash); 
    new Handler().postDelayed(new Runnable() { 
     @Override 
     public void run() { 
      Intent homeIntent = new Intent(Splash.this, QuizActivity.class); 
      startActivity(homeIntent); 
      finish(); 

     } 
    }, SPLASH_TIME_OUT); 
} 

}

XML Splash:

 <?xml version="1.0" encoding="utf-8"?> 
     <android.support.constraint.ConstraintLayout 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:app="http://schemas.android.com/apk/res-auto" 
     xmlns:tools="http://schemas.android.com/tools" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     tools:context="amapps.impossiblequiz.Splash"> 


     </android.support.constraint.ConstraintLayout> 

Menu2 Java:

 public class Menu2 extends AppCompatActivity { 




private DrawerLayout mDrawerLayout2; 
private ActionBarDrawerToggle mToggle; 
private Toolbar mToolbar; 


@Override 
protected void onCreate(Bundle savedInstanceState){ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_menu2); 


    TextView txtScore = (TextView) findViewById(R.id.textScore2); 
    TextView txtHighScore = (TextView)findViewById(R.id.textHighScore); 
    ImageView imgTrophyView1 = (ImageView)findViewById(R.id.trophy1); 
    ImageView imgTrophyView2 = (ImageView) findViewById(R.id.trophy2); 

    Intent intent = getIntent(); 
    int mScore = intent.getIntExtra ("score",0); 
    txtScore.setText("Your score is: " + mScore); 

    SharedPreferences sharedpreferences = getSharedPreferences("mypref", Context.MODE_PRIVATE); 
    int applyView =sharedpreferences.getInt("currentscore",0); 


    SharedPreferences mypref =getPreferences(MODE_PRIVATE); 
    int highScore = mypref.getInt("highScore", 0); 
    if (highScore>= mScore) 
     txtHighScore.setText("High score: " + highScore); 


    else{ 
     txtHighScore.setText("New highscore: " + mScore); 

     SharedPreferences.Editor editor = mypref.edit(); 
     editor.putInt("highScore",mScore); 
     editor.commit(); 

    } 

    if (applyView >=10 && applyView<20) 
     imgTrophyView1.setVisibility(View.VISIBLE); 

     if (applyView >= 20 && applyView<30){ 
      imgTrophyView2.setVisibility(View.VISIBLE);}} 


      public void onClick(View view) { 
       Intent intent = new Intent(Menu2.this, QuizActivity.class); 
       startActivity(intent); 


       mToolbar = (Toolbar) findViewById(R.id.nav_action); 
       setSupportActionBar(mToolbar); 
       mDrawerLayout2 = (DrawerLayout) findViewById(R.id.drawerLayout2); 

       mToggle = new ActionBarDrawerToggle(this, mDrawerLayout2, R.string.open, R.string.close); 
       mDrawerLayout2.addDrawerListener(mToggle); 
       mToggle.syncState(); 
       getSupportActionBar().setDisplayHomeAsUpEnabled(true); 

       NavigationView mNavigationView = (NavigationView) findViewById(nv2); 
       mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { 

        @Override 
        public boolean onNavigationItemSelected(MenuItem menuItem) { 
         switch (menuItem.getItemId()) { 
          case (R.id.nav_home2): 
           Intent accountActivity2 = new Intent(getApplicationContext(), QuizActivity.class); 
           startActivity(accountActivity2); 

         } 
         return true; 
        } 
       }); 

      } 






@Override //Makes that the "Burger" Item, shows the Drawer if someone clicks on the simbol 
public boolean onOptionsItemSelected(MenuItem item) { 
    if (mToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 
    return super.onOptionsItemSelected(item); 




} 

}

Menu2 XML:

 <?xml version="1.0" encoding="utf-8"?> 
     <android.support.v4.widget.DrawerLayout 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:app="http://schemas.android.com/apk/res-auto" 
     xmlns:tools="http://schemas.android.com/tools" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     tools:context="amapps.impossiblequiz.Menu2" 
     android:id="@+id/drawerLayout2"> 

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical"> 


    <include 
     layout="@layout/navigation_action" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" /> 


    <RelativeLayout 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent"> 


     <TextView 
      android:id="@+id/textScore2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="71dp" 
      android:background="#f60" 
      android:paddingBottom="20dp" 
      android:paddingLeft="50dp" 
      android:paddingRight="100dp" 
      android:paddingTop="20dp" 
      android:text="Your score:" 
      android:textAppearance="@style/TextAppearance.AppCompat" 
      android:textColor="#ffffff" 
      android:textSize="20dp" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentEnd="true" /> 

     <TextView 
      android:id="@+id/textHighScore" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentEnd="true" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentStart="true" 
      android:layout_below="@+id/textScore2" 
      android:layout_marginTop="20dp" 
      android:background="#1abc9c" 
      android:paddingBottom="20dp" 
      android:paddingLeft="50dp" 
      android:paddingRight="100dp" 
      android:paddingTop="20dp" 
      android:text="Highest score:" 
      android:textAppearance="@style/TextAppearance.AppCompat" 
      android:textColor="#ffffff" 
      android:textSize="20dp" /> 

     <Button 
      android:id="@+id/tryAgain_button" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" 
      android:layout_below="@+id/textHighScore" 
      android:layout_marginTop="26dp" 
      android:background="#000" 
      android:onClick="onClick" 
      android:text="Restart Quiz!" 
      android:textColor="#ffffff" /> 

     <ImageView 
      android:id="@+id/trophy1" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" 
      android:layout_below="@+id/tryAgain_button" 
      android:layout_marginLeft="33dp" 
      android:layout_marginStart="33dp" 
      android:layout_marginTop="37dp" 
      app:srcCompat="@mipmap/ic_person_black_24dp" 
      android:visibility="invisible"/> 

     <ImageView 
      android:id="@+id/trophy2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignBottom="@+id/trophy1" 
      android:layout_marginLeft="39dp" 
      android:layout_marginStart="39dp" 
      android:layout_toEndOf="@+id/trophy1" 
      android:layout_toRightOf="@+id/trophy1" 
      app:srcCompat="@mipmap/ic_launcher_round" 
      android:visibility="invisible"/> 


    </RelativeLayout> 


</LinearLayout> 


<android.support.design.widget.NavigationView 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    app:menu="@menu/navigation_menu2" 
    android:layout_gravity="start" 
    android:id="@+id/nv2" 
    app:headerLayout="@layout/navigation_header" 
    app:itemIconTint="@drawable/tint_color_selector2"> 




</android.support.design.widget.NavigationView> 

Answer 1

<activity 
      android:name=".Splash" 
      android:screenOrientation="portrait"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

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

Est-ce que dans votre Manifest.xml

Answer 2

déplacer la intent-filter de l'activité principale du barbotage activité au manifest.xml fichier

<activity android:name=".QuizActivity"></activity> 

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