Navigation Drawer: fragmentTransaction.commit() plante mon application

Je crée le tiroir de navigation, il fonctionne jusqu'à ce que j'ai commencé à ajouter des fragments, il se bloque après fragmentTransaction.commit();. Mais je suis incapable de comprendre pourquoi cela arrive. Merci!Navigation Drawer: fragmentTransaction.commit() plante mon application

Voici mon code:

import android.support.annotation.Nullable; 
    import android.support.v4.app.FragmentTransaction; 
    import android.support.v4.widget.DrawerLayout; 
    import android.support.v7.app.ActionBarDrawerToggle; 
    import android.support.v7.app.AppCompatActivity; 
    import android.os.Bundle; 
    import android.support.v7.widget.Toolbar; 
    import android.util.Log; 

    public class MainActivity extends AppCompatActivity { 

    Toolbar toolbar; 
    DrawerLayout drawerLayout; 
    ActionBarDrawerToggle actionBarDrawerToggle; 
    FragmentTransaction fragmentTransaction; 


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

     toolbar= (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 

     drawerLayout= (DrawerLayout) findViewById(R.id.drawer_layout); 
     actionBarDrawerToggle=new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.drawer_open,R.string.drawer_close); 

     drawerLayout.setDrawerListener(actionBarDrawerToggle); 


     fragmentTransaction = getSupportFragmentManager().beginTransaction(); 
     fragmentTransaction.add(R.id.main_container, new HomeFragment()); 
     fragmentTransaction.commit(); 
     getSupportActionBar().setTitle("Home . . ."); 


    }

Voici le journal:

FATAL EXCEPTION: main 
                      Process: com.example.hakobm.navdrawer, PID: 351 
                      java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.hakobm.navdrawer/com.example.hakobm.navdrawer.MainActivity}: java.lang.RuntimeException: [email protected] must implement OnFragmentInteractionListener 
                       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 
                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                       at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                       at android.os.Handler.dispatchMessage(Handler.java:102) 
                       at android.os.Looper.loop(Looper.java:148) 
                       at android.app.ActivityThread.main(ActivityThread.java:5417) 
                       at java.lang.reflect.Method.invoke(Native Method) 
                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                      Caused by: java.lang.RuntimeException: [email protected] must implement OnFragmentInteractionListener 
                       at com.example.hakobm.navdrawer.HomeFragment.onAttach(HomeFragment.java:75) 
                       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1231) 
                       at android.support.v4.app.FragmentTransition.addToFirstInLastOut(FragmentTransition.java:1085) 
                       at android.support.v4.app.FragmentTransition.calculateFragments(FragmentTransition.java:976) 
                       at android.support.v4.app.FragmentTransition.startTransitions(FragmentTransition.java:95) 
                       at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2146) 
                       at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2103) 
                       at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2013) 
                       at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:388) 
                       at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:607) 
                       at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:178) 
                       at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1237) 
                       at android.app.Activity.performStart(Activity.java:6268) 
                       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379) 
                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  
                       at android.app.ActivityThread.-wrap11(ActivityThread.java)  
                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  
                       at android.os.Handler.dispatchMessage(Handler.java:102)  
                       at android.os.Looper.loop(Looper.java:148)  
                       at android.app.ActivityThread.main(ActivityThread.java:5417)  
                       at java.lang.reflect.Method.invoke(Native Method)  
                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  
                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Source

2017-08-04 Hakob M

post erreur journal ici. –

Assurez-vous que vous utilisez la même importation dans les deux classes –

https://stackoverflow.com/questions/28822229/error-must-implement-onfragmentinteractionlistener –

Utilisez le code ci-dessous pour appeler votre fragment ...

FragmentTransaction fragmenttransaction = getSupportFragmentManager().beginTransaction(); 
    HomeFragment regcomplainfragment = new HomeFragment(); 
    fragmenttransaction.replace(R.id.main_container, regcomplainfragment).addToBackStack("tag"); 
    fragmenttransaction.commit();

et de supprimer la ligne ci-dessous;

getSupportActionBar().setTitle("Home . . .");

Source

2017-08-04 07:24:03

encore écraser, j'ai ajouté le journal –

Je pense que ce qui est utile pour vous

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    context = getApplicationContext(); 

    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
    mDrawer = (RelativeLayout) findViewById(R.id.drawer); 
    mDrawerList = (ListView) findViewById(R.id.drawer_listview); 



    if (savedInstanceState == null) { 
     FragmentTransaction tx = getSupportFragmentManager().beginTransaction(); 
     tx.replace(R.id.main_container,new HomeFragment()); 
     tx.commit(); 
    } 

    actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_close); 
    drawerLayout.setDrawerListener(actionBarDrawerToggle); 
    actionBarDrawerToggle.syncState(); 


    title = new String[]{ Here you use menu title 
    }; 

    icon = new int[]{ here show menu icon}; 

    mMenuAdapter = new HomeMenuListAdapter(context, title, icon); 
    mDrawerList.setAdapter(mMenuAdapter); 
    mMenuAdapter.notifyDataSetChanged(); 


    mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> parent, View view, 
           int position, long id) { 



      FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 

      switch (position) { 

       case 0: 

      } 
      ft.commit(); 
      mDrawerList.setItemChecked(position, true); 
      drawerLayout.closeDrawer(mDrawer); 

     } 
    }); 


     }

Source

2017-08-04 07:31:02 New

Votre MainActivity devez implémenter l'interface OnFragmentInteractionListener

Source

2017-08-04 08:00:04 artemiygreg

Navigation Drawer: fragmentTransaction.commit() plante mon application

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