Odtnhj

I am developing an Android app and I want to inflate a dialog with the press of a button (I've already done that), but one specific button does not work, and I don't really know why.

My code:

public class SearchUser extends AppCompatActivity

private static final String TAG = "SearchUser";

@Override
public void onCreate(@Nullable Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 Button b = (Button) findViewById(R.id.btnSearchUser);
 b.setOnClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View view) 
 AlertDialog.Builder mBuilder = new AlertDialog.Builder(SearchUser.this);
 View mView = getLayoutInflater().inflate(R.layout.searchpopup, null);
 mBuilder.setView(mView);
 AlertDialog dialog = mBuilder.create();
 btnSearch.setOnClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View view) 
 );
 
 );
 dialog.show();
 
 );

LAYOUT XML FILE:

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:mapbox="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=".MainActivity">

<Button
 android:id="@+id/btnUser"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginBottom="8dp"
 android:layout_marginEnd="8dp"
 android:layout_marginStart="8dp"
 android:layout_marginTop="8dp"
 android:text="@string/user"
 mapbox:layout_constraintBottom_toBottomOf="parent"
 mapbox:layout_constraintEnd_toEndOf="@+id/mapView"
 mapbox:layout_constraintHorizontal_bias="0.0"
 mapbox:layout_constraintStart_toStartOf="parent"
 mapbox:layout_constraintTop_toTopOf="@+id/mapView"
 mapbox:layout_constraintVertical_bias="0.0" />

<Button
 android:id="@+id/btnSearchUser"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginBottom="8dp"
 android:layout_marginEnd="8dp"
 android:layout_marginStart="8dp"
 android:layout_marginTop="8dp"
 android:text="@string/search_user"
 mapbox:layout_constraintBottom_toBottomOf="parent"
 mapbox:layout_constraintEnd_toEndOf="@+id/mapView"
 mapbox:layout_constraintHorizontal_bias="0.0"
 mapbox:layout_constraintStart_toStartOf="parent"
 mapbox:layout_constraintTop_toTopOf="@+id/mapView"
 mapbox:layout_constraintVertical_bias="0.129" />

<Button
 android:id="@+id/logoutButton"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginBottom="8dp"
 android:layout_marginEnd="8dp"
 android:layout_marginStart="8dp"
 android:layout_marginTop="8dp"
 android:text="@string/log_out"
 mapbox:layout_constraintBottom_toBottomOf="parent"
 mapbox:layout_constraintEnd_toEndOf="@+id/mapView"
 mapbox:layout_constraintHorizontal_bias="1.0"
 mapbox:layout_constraintStart_toStartOf="@+id/mapView"
 mapbox:layout_constraintTop_toTopOf="parent"
 mapbox:layout_constraintVertical_bias="0.0" />

<com.mapbox.mapboxsdk.maps.MapView
 android:id="@+id/mapView"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 mapbox:layout_constraintBottom_toBottomOf="parent"
 mapbox:layout_constraintEnd_toEndOf="parent"
 mapbox:layout_constraintStart_toStartOf="parent"
 mapbox:layout_constraintTop_toTopOf="parent"

 mapbox:mapbox_cameraTargetLat="-34.6131500"
 mapbox:mapbox_cameraTargetLng="-58.3772300"
 mapbox:mapbox_cameraZoom="12"
 mapbox:mapbox_styleUrl="mapbox://styles/mapbox/streets-v10">

</com.mapbox.mapboxsdk.maps.MapView>

<Button
 android:id="@+id/startButton"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_marginBottom="24dp"
 android:layout_marginEnd="24dp"
 android:layout_marginStart="24dp"
 android:enabled="true"
 android:text="@string/crear_fiesta"
 android:textColor="@color/mapboxGrayLight"
 mapbox:layout_constraintBottom_toBottomOf="parent"
 mapbox:layout_constraintEnd_toEndOf="parent"
 mapbox:layout_constraintStart_toStartOf="parent" />

I have tried putting a toast message inside the onClick method but nothing happens, so I guess it just does not enter there.

Anyone know why? Thanks for any answer :D

You're overriding the wrong onCreate(), replace it with:

protected void onCreate(@Nullable Bundle savedInstanceState)

Edit: are you sure that this xml should be inflated in class SearchUser?
Do you have a class MainActivity like the xml states?

Place the btnSearchUser button below the MapView in XML.

You've also configured MapView with match_parent, which is not applicable to a constraint layout parent. Set the height and width of MapView to 0dp as well.