How to intent to different activities for different types of users

Question

I am developing an android app on android studio & Firebase. There are 4 different types of users (student, tutor, parent, admin). I want to do it with if statements something like this:

 if (user.profile.userstatus == "Student")
     intent studentactivity
 if (user.profile.userstatus == "Tutor")
     intent tutoractivity

So, my main question is that how can I bring the data from firebase?

And, this is my code for distinguishing:

if (isRegistering) {
    mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
        @Override
        public void onComplete(@NonNull Task<AuthResult> task) {
        showProgress(false);

            if (!task.isSuccessful()) {
                Toast.makeText(LoginActivity.this, "Could Not Register", Toast.LENGTH_SHORT).show();
            } else {
                // show username diaglog
                UsernameDialogFragment dialog = new UsernameDialogFragment();
                dialog.show(getFragmentManager(),null);
            }
        }
    });
} else {
    Task<AuthResult> authResultTask = mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
        @Override
        public void onComplete(@NonNull Task<AuthResult> task) {
            showProgress(false);
            if (task.isSuccessful()) {
                // Sign in success, update UI with the signed-in user's information
                FirebaseUser user = mAuth.getCurrentUser();


                //student login
                if (get idstatus == "Student")
                Intent studentintent = new Intent(getBaseContext(), studentActivity.class);
                startActivity(studentintent);

                //admin login
                else if (get idstatus == "Admin")
                Intent adminintent = new Intent(getBaseContext(), AdminActivity.class);
                startActivity(adminintent);

                //parent login
                else if (get idstatus == "Parent")
                Intent parentintent = new Intent(getBaseContext(), ParentActivity.class);
                startActivity(parentintent);

                //tutor login
                else {
                Intent tutorintent = new Intent(getBaseContext(), TutorActivity.class);
                startActivity(tutorintent);
                }
            } else {
                // If sign in fails, display a message to the user.

                Toast.makeText(LoginActivity.this, "Authentication failed.",
                        Toast.LENGTH_SHORT).show();

            }

And this is code for storing data(now working):

public void onClick(DialogInterface dialog, int id) {
    // sign in the user ...

    //https://myapplication4-124da.firebaseio.com/ https://console.firebase.google.com/project/myapplication4-124da/database/myapplication4-124da/data/

    EditText usernameField = ((AlertDialog) dialog).findViewById(R.id.username);
    EditText firstnameField = ((AlertDialog) dialog).findViewById(R.id.firstname);
    EditText lastnameField = ((AlertDialog) dialog).findViewById(R.id.lastname);
    String username = usernameField.getText().toString();
    String userId = FirebaseAuth.getInstance().getCurrentUser().getUid();
    String firstname = firstnameField.getText().toString();
    String lastname = lastnameField.getText().toString();

    User aUser = new User(username, firstname, lastname, choice, 0.0);

    FirebaseDatabase.getInstance().getReference("users").child(userId).child("profile").setValue(aUser);

    Intent intent = new Intent(getActivity().getBaseContext(), studentActivity.class);
    startActivity(intent);

I have to send different types of users (idstatus; "student", "tutor", "parent", and "admin") to different activity pages. So, I have to read the saved idstatus data from firebase. And I want to use if statement in order to distinguish the idstatus, but I don't understand how to read the user type data from firebase. Can you please help me? — HeeJoong Kim, Feb 07 '18 at 19:35

score 0 · Answer 1 · answered Feb 06 '18 at 17:16

0

Ok, so the main problem in your code is in comparing strings. You can't use "==" whilst comparing strings. Use comparesTo

eg if(string1.comparesTo(string2)==0)//this means they are equal { Log.i(TAG,"Strings are equal");}

answered Feb 06 '18 at 17:16

Behl

129
10

can you please let me know how to read the data stored in users.child(UId).child(profile).child(idstatus) ?? So that I can compare the string to usertypes? (Student , admin, tutor, and parent?) – HeeJoong Kim Feb 07 '18 at 15:55

score 0 · Answer 2 · answered Feb 06 '18 at 19:52

Your question doesn't clearly state your problem.

Assuming that the only problem you're getting is comparing the value from fetched data to a string, "==" doesn't work in case of strings. You must use

usertype.equals("Student")

It returns true if the strings 'usertype' and "Student" are equal. Hope this helps.

How to intent to different activities for different types of users

2 Answers2