android firebase user login trouble with intent inside if statement

Question

I am trying to use IF with my login stuff. The purpose of this is to create the user in the firebase if it does not exist, and just log in if it does exist. The reason I want to do this, is that I want to put more info under the users UID, but this info gets erased from firebase every time the user logs in, because it always updates the UID and entries below it.

There may be another way to do this, but this is the only solution I was able to find.

The problem I am having is that when building I get an error. See error message below.

This is in my MainActivity.java

@Override
public void onFirebaseLoggedIn(final AuthData authData) {
    // TODO: Handle successful login
    Firebase userRef= new Firebase("https://theatre-assistant.firebaseio.com/users");
    userRef.child(authData.getUid()).addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot snapshot) {
            if (snapshot.getValue() != null) {
                Intent intent = new Intent(this, HomeActivity.class);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                startActivity(intent);

            } else {
                final Firebase ref = new Firebase("https://theatre-assistant.firebaseio.com/");
                // Authentication just completed successfully :)
                Map<String, String> map = new HashMap<>();
                map.put("provider", authData.getProvider());
                if (authData.getProviderData().containsKey("displayName")) {
                    map.put("displayName", authData.getProviderData().get("displayName").toString());
                    map.put("profileImageURL", authData.getProviderData().get("profileImageURL").toString());

                }
                ref.child("users").child(authData.getUid()).setValue(map);
                Intent intent = new Intent(this, HomeActivity.class);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                startActivity(intent);

            }
        }

        @Override
        public void onCancelled(FirebaseError arg0) {
        }
    });

}

Error when building

Users/runelangaard/AndroidStudioProjects/TheatreAssistant/app/src/main/java/com/langaard/theatreassistant/MainActivity.java:61: error: no suitable constructor found for Intent(<anonymous ValueEventListener>,Class<HomeActivity>)
                    Intent intent = new Intent(this, HomeActivity.class);
                                    ^
    constructor Intent.Intent(String,Uri,Context,Class<?>) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent(Context,Class<?>) is not applicable
      (actual argument <anonymous ValueEventListener> cannot be converted to Context by method invocation conversion)
    constructor Intent.Intent(String,Uri) is not applicable
      (actual argument <anonymous ValueEventListener> cannot be converted to String by method invocation conversion)
    constructor Intent.Intent(String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent(Intent) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent() is not applicable
      (actual and formal argument lists differ in length)
/Users/runelangaard/AndroidStudioProjects/TheatreAssistant/app/src/main/java/com/langaard/theatreassistant/MainActivity.java:77: error: no suitable constructor found for Intent(<anonymous ValueEventListener>,Class<HomeActivity>)
                    Intent intent = new Intent(this, HomeActivity.class);
                                    ^
    constructor Intent.Intent(String,Uri,Context,Class<?>) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent(Context,Class<?>) is not applicable
      (actual argument <anonymous ValueEventListener> cannot be converted to Context by method invocation conversion)
    constructor Intent.Intent(String,Uri) is not applicable
      (actual argument <anonymous ValueEventListener> cannot be converted to String by method invocation conversion)
    constructor Intent.Intent(String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent(Intent) is not applicable
      (actual and formal argument lists differ in length)
    constructor Intent.Intent() is not applicable
      (actual and formal argument lists differ in length)
2 errors

 FAILED

How can I correct this issue?

Thanks Rune

Answer 1

replace

Intent intent = new Intent(this, HomeActivity.class);

with

Intent intent = new Intent(MainActivity.this, HomeActivity.class);