Android App se bloque lors de l'ouverture

-1

J'ai un problème avec une application Android à moi.Il se bloque au démarrage et je ne sais pas grand-chose sur LogCat. Peut-on me suggérer la meilleure façon de résoudre le problème.Je n'ai aucune idée de ce que est faux.Android App se bloque lors de l'ouverture

Il s'agit d'une application MediaPlayer qui boucle l'audio.

Avant d'écrire (setOnClickListerner) Il ne s'est pas écrasé.

Ce qui pourrait causer le problème?

MainActivity.java:

 package com.jobyreuben.dholakloops; 



    public class MainActivity extends AppCompatActivity { 


Button dholak01; 
Button dholak02; 
Button dholak03; 
Button dholak04; 
Button dholak05; 
Button dholak06; 
Button dholak07; 
Button dholak08; 
Button dholak09; 
Button dholak10; 
Button dholak11; 
Button dholak12; 
Button dholak13; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 


    dholak01 = (Button) findViewById(R.id.button_1); 
    final MediaPlayer dk1 = MediaPlayer.create(MainActivity.this, R.raw.dholak01); 
    dholak02 = (Button) findViewById(R.id.button_2); 
    final MediaPlayer dk2 = MediaPlayer.create(MainActivity.this, R.raw.dholak02); 
    dholak03 = (Button) findViewById(R.id.button_3); 
    final MediaPlayer dk3 = MediaPlayer.create(MainActivity.this, R.raw.dholak03); 
    dholak04 = (Button) findViewById(R.id.button_4); 
    final MediaPlayer dk4 = MediaPlayer.create(MainActivity.this, R.raw.dholak04); 
    dholak05 = (Button) findViewById(R.id.button_5); 
    final MediaPlayer dk5 = MediaPlayer.create(MainActivity.this, R.raw.dholak05); 
    dholak07 = (Button) findViewById(R.id.button_6); 
    final MediaPlayer dk6 = MediaPlayer.create(MainActivity.this, R.raw.dholak06); 
    dholak08 = (Button) findViewById(R.id.button_7); 
    final MediaPlayer dk7 = MediaPlayer.create(MainActivity.this, R.raw.dholak07); 
    dholak09 = (Button) findViewById(R.id.button_8); 
    final MediaPlayer dk8 = MediaPlayer.create(MainActivity.this, R.raw.dholak08); 
    dholak10 = (Button) findViewById(R.id.button_9); 
    final MediaPlayer dk9 = MediaPlayer.create(MainActivity.this, R.raw.dholak09); 
    dholak11 = (Button) findViewById(R.id.button_10); 
    final MediaPlayer dk10 = MediaPlayer.create(MainActivity.this, R.raw.dholak10); 
    dholak12 = (Button) findViewById(R.id.button_11); 
    final MediaPlayer dk11 = MediaPlayer.create(MainActivity.this, R.raw.dholak11); 
    dholak13 = (Button) findViewById(R.id.button_12); 
    final MediaPlayer dk12 = MediaPlayer.create(MainActivity.this, R.raw.dholak12); 



    dholak01.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk1.isPlaying()) { 
       dk1.pause(); 
       dholak01.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk1.start(); 
       dholak01.setBackgroundResource(R.drawable.dholakp); 
       dk1.setLooping(true); 

      } 

     } 
    }); 

    dholak02.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk2.isPlaying()) { 
       dk2.pause(); 
       dholak02.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk2.start(); 
       dholak02.setBackgroundResource(R.drawable.dholakp); 
       dk2.setLooping(true); 

      } 

     } 
    }); 
    dholak03.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk3.isPlaying()) { 
       dk3.pause(); 
       dholak03.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk3.start(); 
       dholak03.setBackgroundResource(R.drawable.dholakp); 
       dk3.setLooping(true); 

      } 

     } 
    }); 
    dholak04.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk4.isPlaying()) { 
       dk4.pause(); 
       dholak04.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk4.start(); 
       dholak04.setBackgroundResource(R.drawable.dholakp); 
       dk4.setLooping(true); 

      } 

     } 
    }); 
    dholak05.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk5.isPlaying()) { 
       dk5.pause(); 
       dholak05.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk5.start(); 
       dholak05.setBackgroundResource(R.drawable.dholakp); 
       dk5.setLooping(true); 

      } 

     } 
    }); 
    dholak06.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk6.isPlaying()) { 
       dk6.pause(); 
       dholak06.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk6.start(); 
       dholak06.setBackgroundResource(R.drawable.dholakp); 
       dk6.setLooping(true); 

      } 

     } 
    }); 
    dholak07.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk7.isPlaying()) { 
       dk7.pause(); 
       dholak07.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk7.start(); 
       dholak07.setBackgroundResource(R.drawable.dholakp); 
       dk7.setLooping(true); 

      } 

     } 
    }); 
    dholak08.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk8.isPlaying()) { 
       dk8.pause(); 
       dholak08.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk8.start(); 
       dholak08.setBackgroundResource(R.drawable.dholakp); 
       dk8.setLooping(true); 

      } 

     } 
    }); 
    dholak09.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk9.isPlaying()) { 
       dk9.pause(); 
       dholak09.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk9.start(); 
       dholak09.setBackgroundResource(R.drawable.dholakp); 
       dk9.setLooping(true); 

      } 

     } 
    }); 
    dholak10.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk10.isPlaying()) { 
       dk10.pause(); 
       dholak10.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk10.start(); 
       dholak10.setBackgroundResource(R.drawable.dholakp); 
       dk10.setLooping(true); 

      } 

     } 
    }); 
    dholak11.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk11.isPlaying()) { 
       dk11.pause(); 
       dholak11.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk11.start(); 
       dholak11.setBackgroundResource(R.drawable.dholakp); 
       dk11.setLooping(true); 

      } 

     } 
    }); 

    dholak12.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (dk12.isPlaying()) { 
       dk12.pause(); 
       dholak12.setBackgroundResource(R.drawable.dholak); 

      } else { 
       dk12.start(); 
       dholak12.setBackgroundResource(R.drawable.dholakp); 
       dk12.setLooping(true); 

      } 

     } 
    }); 


} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.id_about) { 
     Intent intentabout = new Intent(MainActivity.this, About.class); 
     startActivity(intentabout); 
     return true; 
    } 
    if (id == R.id.id_contact) 

    { 
     Intent intentabout = new Intent(MainActivity.this, Contact.class); 
     startActivity(intentabout); 
     return true; 
    } 

    if (id == R.id.id_otherapps) { 
     return true; 
    } 
    return true; 
}

}

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.id_about) { 
     Intent intentabout = new Intent(MainActivity.this, About.class); 
     startActivity(intentabout); 
     return true; 
    } 
    if (id == R.id.id_contact) 

    { 
     Intent intentabout = new Intent(MainActivity.this, Contact.class); 
     startActivity(intentabout); 
     return true; 
    } 

    if (id == R.id.id_otherapps) { 
     return true; 
    } 
    return true; 
    } 
}

Voici le journal de LogCat:

--------- beginning of crash 
                     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2665) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726) 
                      at android.app.ActivityThread.-wrap12(ActivityThread.java) 
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) 
                      at android.os.Handler.dispatchMessage(Handler.java:102) 
                      at android.os.Looper.loop(Looper.java:154) 
                      at android.app.ActivityThread.main(ActivityThread.java:6119) 
                      at java.lang.reflect.Method.invoke(Native Method) 
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
                     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference 
                      at com.jobyreuben.dholakloops.MainActivity.onCreate(MainActivity.java:149) 
                      at android.app.Activity.performCreate(Activity.java:6679) 
                      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) 
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)  
                      at android.app.ActivityThread.-wrap12(ActivityThread.java)  
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)  
                      at android.os.Handler.dispatchMessage(Handler.java:102)  
                      at android.os.Looper.loop(Looper.java:154)  
                      at android.app.ActivityThread.main(ActivityThread.java:6119)  
                      at java.lang.reflect.Method.invoke(Native Method)  
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)  
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

Source

2017-05-27 Joby Reuben

Qu'est-ce que la ligne n ° 118 dans 'MainActivity.java'? – Lal

vous avez manqué le numéro '4' –

dholak 04 ensemble sur un clic d'écoute –

Vous avez manqué dholak04. Faire la référence du bouton dholak04 au bouton xml. changer dholak05 = (Button) findViewById(R.id.button_4);

dholak04 = (Button) findViewById(R.id.button_4);

Et aussi, vous avez fait plusieurs erreurs dans l'initialisation. par exemple init 5 avec 6

Source

2017-05-27 16:56:29

Actuellement, StackOverflow est un site Q/A modéré par la communauté. Posez la question selon les normes mentionnées dans la documentation de StackOverflow. Vous êtes débutant, au début vous serez mécontent de la modération mais lentement vous comprendrez pourquoi une telle chose est nécessaire pour maintenir la qualité et la qualité des questions et réponses dans Stack Overflow. –

Merci ... Je vais continuer à essayer –

Android App se bloque lors de l'ouverture

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