Bouton ne fonctionne pas sur Android Fragment

Question

J'ai un simple bouton sur un fragment, le bouton est bien déclaré, mais quand j'appuie sur le bouton de l'application, rien ne se passe.

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { 
    super.onCreateView(inflater, container, savedInstanceState); 
    Log.i(TAG, "onCreate"); 

    View rootView = inflater.inflate(R.layout.activity_cliente, container, false); 

    metIP = (EditText) rootView.findViewById(R.id.etIP); 
    mtvRespuesta = (TextView) rootView.findViewById(R.id.tvRespuesta); 
    mbtConectar = (Button) rootView.findViewById(R.id.btConectar); 
    metPuerto = (EditText) rootView.findViewById(R.id.etPuerto); 


    // contexto de la aplicacion 
    cont = super.getActivity().getApplicationContext(); 
    // connectivityManager 
    myConnManager = (ConnectivityManager) super.getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 
    // broadcastReceiver de las conexiones WiFi, registro del mismo dentro 
    // de la aplicacion 
    BroadcastReceiverWifi brwifi = new BroadcastReceiverWifi(this, 
      myConnManager); 
    super.getActivity().registerReceiver(brwifi.myWifiReciever, new IntentFilter(
      ConnectivityManager.CONNECTIVITY_ACTION)); 

    mbtConectar.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Log.i(TAG,"dentro de onClick"); 
      eventoConectar(v); 
     } 
    }); 

    return rootView; 
} 

code xml complet, où le bouton est déclaré. appelé activity_cliente.xml

<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_height="match_parent" 
android:layout_width="match_parent"> 
<TableLayout 
    android:id="@+id/TableLayout1" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.example.daviddiez.clientearduinotab.ClienteActivity" > 

    <!-- fila para campo de IP con su etiqueta --> 

    <TableRow 
     android:id="@+id/tableRow1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"> 

     <TextView 
      android:id="@+id/tvIP" 
     android:layout_width="30dp" 
     android:fontFamily="sans-serif-condensed" 
     android:gravity="left" 
     android:text="@string/tvIP" 
     android:textColor="#1534e3" 
     android:textSize="22sp"/> 

    <EditText 
     android:id="@+id/etIP" 
     android:layout_width="150dp" 
     android:fontFamily="sans-serif-condensed" 
     android:gravity="left" 
     android:hint="dir ip" 
     android:inputType="text" 
     android:singleLine="true" 
     android:textColor="#008caf" 
     android:textSize="20sp" /> 
</TableRow> 

<!-- fila para el puerto --> 

<TableRow 
    android:id="@+id/tableRowPuerto" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"> 

    <TextView 
     android:id="@+id/tvPuerto" 
     android:layout_width="40dp" 
     android:fontFamily="sans-serif-condensed" 
     android:gravity="left" 
     android:text="Puerto" 
     android:textColor="#1534e3" 
     android:textSize="22sp" /> 

    <EditText 
     android:id="@+id/etPuerto" 
     android:layout_width="60dp" 
     android:fontFamily="sans-serif-condensed" 
     android:gravity="start" 
     android:hint="puerto" 
     android:inputType="number" 
     android:singleLine="true" 
     android:textColor="#008caf" 
     android:textSize="20sp" /> 
</TableRow> 

<!-- fila para el boton conectar --> 

<TableRow 
    android:id="@+id/tableRowConectar" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:gravity="right" > 

     <!-- 
     se requiere un frameLayout para poder redimensionar el boton y posicionarlo donde 
     se desea, ya que el tableRow bloquea estos aspectos. 
     --> 
     <Button 
      android:id="@+id/btConectar" 
      android:layout_width="135dp" 
      android:layout_height="45dp" 
      android:layout_gravity="end" 
      android:background="@drawable/shapebutton" 
      android:fontFamily="sans-serif-condensed" 
      android:text="@string/btConectar" 
      android:textColor="#FFFFFF" 
      android:textSize="18sp" 
      /> 
</TableRow> 
<!-- fila para la respuesta del servidor cuando conecta --> 
<TableRow 
    android:id="@+id/tableRowRespuesta" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:gravity="left" > 

    <TextView 
     android:id="@+id/tvRespuesta" 
     android:layout_width="120dp" 
     android:fontFamily="sans-serif-condensed" 
     android:gravity="left" 
     android:textColor="#009688" 
     android:textSize="20sp" /> 
</TableRow>`</TableLayout> </RelativeLayout>` 

Ceci est la sortie logcat lorsque j'appuie sur le bouton:

12-21 21:32:16.628 29269-29269/com.example.daviddiez.clientearduinotab D/GestureDetector: [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 2 mFalseSizeCnt:0 

La méthode que le bouton doit appeler:

public void eventoConectar(View v){ 
    Log.i(TAG,"eventoConectar"); 

    String port = metPuerto.getText().toString(); 
    puerto = Integer.parseInt(port); 
    ip = metIP.getText().toString(); 
    SavePrefs sp = new SavePrefs(); 
    sp.guardarPreferencias(ip, puerto, super.getActivity()); 
    WifiManager mWifiManager = (WifiManager) super.getActivity().getSystemService(Context.WIFI_SERVICE); 
    status = mWifiManager.isWifiEnabled(); 
    vista = v; 
    Log.i(TAG, "status wifi " + status); 
    cas = new ConnectAndroidServer(ip, puerto, cont,ClienteActivity.this); 
    cas.delegate = this; 
    if (status == false) {//si el status de conexion es falso, se le pregunta al usuario si desea activar la wifi, 
     //salir, o no activar. 
     mostrarDialog(vista, " necesita Activar la conexion WiFi", 
       "Salir"); 
    } else { 
     cas.execute(); 
     Log.i(TAG, "lanzado AsyncTask"); 

     primerConexion=true; 
    } 

    new ProgramadorConexion(ClienteActivity.this); 
} 

est ici capture d'écran du premier fragment sur la gauche et la capture d'écran du deuxième fragment avec des boutons de travail sur la gauche:

volet montrer onglets différents points de vue.

public class TabActivity extends AppCompatActivity { 

    private SectionsPagerAdapter mSectionsPagerAdapter; 
    private ViewPager mViewPager; 

    ClienteActivity clienteActivity; 
    private static final String TAG="1-TabActivity"; 

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

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 
     mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); 


     mViewPager = (ViewPager) findViewById(R.id.container); 
     mViewPager.setPageTransformer(true,new ZoomOutPageTransformer()); 
     mViewPager.setAdapter(mSectionsPagerAdapter); 

     TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); 
     tabLayout.setupWithViewPager(mViewPager); 

     FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
     fab.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
         .setAction("Action", null).show(); 
      } 
     }); 

    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.menu_tab, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 
     /** 
     * The fragment argument representing the section number for this 
     * fragment. 
     */ 
     private static final String ARG_SECTION_NUMBER = "section_number"; 

     public PlaceholderFragment() { 
     } 

     /** 
     * Returns a new instance of this fragment for the given section 
     * number. 
     */ 
     public static PlaceholderFragment newInstance(int sectionNumber) { 
      PlaceholderFragment fragment = new PlaceholderFragment(); 
      Bundle args = new Bundle(); 
      args.putInt(ARG_SECTION_NUMBER, sectionNumber); 
      fragment.setArguments(args); 
      return fragment; 
     } 


     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
           Bundle savedInstanceState) { 
      Log.i(TAG,"onCreateView"); 

      View rootView = inflater.inflate(R.layout.activity_cliente, container, false); 
      //TextView textView = (TextView) rootView.findViewById(R.id.section_label); 
      //textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER))); 
      return rootView; 
     } 
    } 

    /** 
    * A {@link FragmentPagerAdapter} that returns a fragment corresponding to 
    * one of the sections/tabs/pages. 
    */ 
    public class SectionsPagerAdapter extends FragmentPagerAdapter { 

     public SectionsPagerAdapter(FragmentManager fm) { 
      super(fm); 
     } 

     @Override 
     public Fragment getItem(int position) { 
      Log.i(TAG,"getItem position"+position); 
      switch (position){ 
       case 0: 
        Log.i(TAG,"getItem case 0"); 
        return PlaceholderFragment.newInstance(position + 1); 
        //return PlaceholderFragment.newInstance(position + 1); 
       case 1: 
        Log.i(TAG,"getItem case 1"); 
        //ClienteActivity ca=new ClienteActivity(); 
        SwitchingActivity sa2=new SwitchingActivity(); 
        //return PlaceholderFragment.newInstance(position + 1); 
        return sa2; 
       case 2: 
        Log.i(TAG,"getItem case 2"); 
        SwitchingActivity sa=new SwitchingActivity(); 
        return sa; 
      } 
      // 
      return null; 
     } 
     @Override 
     public int getCount() { 
      // Show 3 total pages. 
      return 3; 
     } 
     @Override 
     public CharSequence getPageTitle(int position) { 
      switch (position) { 
       case 0: 
        return "Servidor"; 
       case 1: 
        return "Control"; 
       case 2: 
        return "SECTION 3"; 
      } 
      return null; 
     } 
    } 
} 

Answer 1

Pourquoi utilisez-vous ?:

super.getActivity().findViewById(R.id.btConectar); 

Remplacer pour:

rootView.findViewById(R.id.btConectar); 

Answer 2

Eh bien, après avoir cherché une raison de l'échec sur le bouton, je trouve ceci: je devez insenter le fragment sur la méthode getItem(). La modification de cette partie du code:

@Override 
    public Fragment getItem(int position) { 
     Log.i(TAG,"getItem position"+position); 
     switch (position){ 
      case 0: 
       Log.i(TAG,"getItem case 0"); 
       return PlaceholderFragment.newInstance(position + 1); 
       //return PlaceholderFragment.newInstance(position + 1); 
      case 1: 
       Log.i(TAG,"getItem case 1"); 
       //ClienteActivity ca=new ClienteActivity(); 
       SwitchingActivity sa2=new SwitchingActivity(); 
       //return PlaceholderFragment.newInstance(position + 1); 
       return sa2; 
      case 2: 
       Log.i(TAG,"getItem case 2"); 
       SwitchingActivity sa=new SwitchingActivity(); 
       return sa; 
     } 
     // 
     return null; 
    } 

pour cela:

 @Override 
    public Fragment getItem(int position) { 
     Log.i(TAG,"getItem position"+position); 
     switch (position){ 
      case 0: 
       Log.i(TAG,"getItem case 0"); 
       ClienteActivity ca=new ClienteActivity(); 
       return ca; 
      case 1: 
       Log.i(TAG,"getItem case 1"); 
       SwitchingActivity sa2=new SwitchingActivity(); 
       return sa2; 
      case 2: 
       Log.i(TAG,"getItem case 2"); 
       SwitchingActivity sa=new SwitchingActivity(); 
       return sa; 
     } 
     // 
     return null; 
    } 

Faire ce changement sur le bouton et tout le travail reste parfaitement. Merci @ cricket_007 et d'autres pour votre aide dans ce domaine.