Nullpointerexception после нажатия диалогового окна андроида

Question

У меня есть пользовательский диалог внутри фрагмента, проблема его в том, что программирование кнопки, каждый раз, когда я программирую кнопку, и я запускаю программу, я получаю ошибку nullpointerexception, может кто-то помочь, пожалуйста, вот его код:

класса, который называет customdialog:

public class PruebaUsuario extends Fragment implements OnMapReadyCallback { 

    private SupportMapFragment sMapFragment; 
    private GoogleApiClient mGoogleApiClient; 
    private Location mLastLocation; 
    private Button mPedir; 
    private Button mConfirmar; 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     //conseguir usuario actual 
     // mUsuarioActual = ParseUser.getCurrentUser(); 

     //preparar google maps 
     final View x = inflater.inflate(R.layout.prueba_usuario, container, false); 
     mPedir=(Button)x.findViewById(R.id.pedirBtn); 


     sMapFragment = SupportMapFragment.newInstance(); 
     sMapFragment.getMapAsync(this); 
     android.support.v4.app.FragmentManager fm = getFragmentManager(); 
     android.support.v4.app.FragmentManager sFm = getChildFragmentManager(); 
     sFm.beginTransaction().add(R.id.mapa, sMapFragment).commit(); 

     mPedir.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       Dialog dialogo = new Dialog(getContext()); 
       dialogo.setTitle("Confirmacion"); 
       dialogo.setContentView(R.layout.confirmacion_pedido); 
       dialogo.show(); 
       mConfirmar=(Button) x.findViewById(R.id.confirmarBtn2); 
       mConfirmar.setEnabled(false); 


      } 
     }); 



     return x; 

    } 


    @Override 
    public void onMapReady(GoogleMap googleMap) { 

     if (ActivityCompat.checkSelfPermission(getContext(), android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getContext(), android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 
      // TODO: Consider calling 
      // ActivityCompat#requestPermissions 
      // here to request the missing permissions, and then overriding 
      // public void onRequestPermissionsResult(int requestCode, String[] permissions, 
      //           int[] grantResults) 
      // to handle the case where the user grants the permission. See the documentation 
      // for ActivityCompat#requestPermissions for more details. 
      return; 
     } 
     googleMap.setMyLocationEnabled(true); 


     LocationManager mng = (LocationManager) getContext().getSystemService(getContext().LOCATION_SERVICE); 
     Location location1 = mng.getLastKnownLocation(mng.getBestProvider(new Criteria(), false)); 
     double lat = location1.getLatitude(); 
     double lon = location1.getLongitude(); 
     LatLng ubicacion = new LatLng(lat, lon); 
     float zoomLevel = 14; 
     googleMap.addMarker(new MarkerOptions().position(ubicacion).title("Marker in Sydney")); 
     googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(ubicacion, zoomLevel)); 







    } 


} 

XML из класса:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <Button 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Pedir Taxi" 
     android:id="@+id/pedirBtn" /> 

    <fragment xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:tools="http://schemas.android.com/tools" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/mapa" 
     tools:context=".MapsActivity" 
     android:name="com.google.android.gms.maps.SupportMapFragment" /> 
</LinearLayout> 

XML в диалоговом окне пользовательского:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:text="Por favor confirme datos direccion" 
     android:id="@+id/textView5" /> 

    <LinearLayout 
     android:orientation="horizontal" 
     android:layout_width="match_parent" 
     android:layout_height="94dp" 
     android:weightSum="1"> 

     <LinearLayout 
      android:orientation="vertical" 
      android:layout_width="198dp" 
      android:layout_height="144dp" 
      android:layout_weight="0.38"> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/editText2" /> 
     </LinearLayout> 

     <LinearLayout 
      android:orientation="vertical" 
      android:layout_width="150dp" 
      android:layout_height="148dp"> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/editText3" /> 
     </LinearLayout> 
    </LinearLayout> 

    <EditText 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/editText4" 
     android:layout_gravity="center_horizontal" 
     android:hint="Ej: independendcia y avellaneda, Frente a carlos v"/> 

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

     <Button 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Confirmar Pedido" 
      android:id="@+id/confirmarBtn2" 
      android:layout_alignParentBottom="true" 
      android:layout_centerHorizontal="true" 
      android:layout_marginBottom="79dp" /> 
    </RelativeLayout> 

</LinearLayout> 

Answer 1

Изменить код вроде как ниже код для вашего диалога и проверки: ошибка

Dialog dialogo = new Dialog(getActivity()); //change getContext to getActivity 
dialogo.setTitle("Confirmacion"); 
dialogo.setContentView(R.layout.confirmacion_pedido); 
dialogo.show(); 
mConfirmar=(Button) dialogo.findViewById(R.id.confirmarBtn2); //instead of x use dialogo 
mConfirmar.setEnabled(false);