Send data between to activities - fragment

Now i have created a new app with registration and logging in but the issue is how to set the email address id in the app i mean like when you go to settings to see which email is logged in right now like this pic

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Firebase: Standard User Registration/Activation Workflow

I need to implement a standard user registration/activation workflow with Firebase. There doesn't seem to be an obvious way to implement this. When I say "standard", I mean how most email/password accounts work - not necessarily specific to Firebase. I'm sure you're familiar with this. This is the workflow:
User enters their username/password on a form with some validation and submits details
The back-end creates the user record in the database, but the account remains deactivated (i.e. user cannot authenticate - the activated flag is set to false)
The back-end sends an email to the user with a link to activate the account
The user clicks the link in their email which triggers activation. This is probably a Web API of some description.
At this point, the user record's activated flag ticks over to true, and the user can now authenticate
The link probably also has a deep link that opens the app or navigates to a web page
The user can now log into the app
How do I configure Firebase to do all this?
Currently, the app allows the user to register. I am using the Flutterfire SDK. I call createUserWithEmailAndPassword, which successfully creates the user in Firebase. But, the user is already activated. The user should have a state of "disabled" in firebase until the account becomes activated. I can't find any settings to default the user to disabled when the account is first created.
I also managed to get Firebase to send out an activation email by calling sendSignInLinkToEmail, but this call is really designed for email authentication - not email activation. Opening the link should activate the account, but I have not figured out how to do this. This documentation makes it sound like it is possible. Perhaps, the Flutterfire SDK is missing this? I don't want to allow people to log in without a password. I only want to use this call to send out an email.
What am I missing here? Is this non-standard behavior for Firebase? If so, why? If the user is allowed to use an app with an email address that is not activated, they can impersonate someone else. We need to confirm at least that they are custodians of the email address that they are claiming to have.
Do other Firebase people just not worry about this?
Lastly, I know I can achieve this by creating a collection for users in Firebase and putting an "activated" flag there. But, if I do that, I've got to write a cloud function that accepts the link and then updates the user in the collection based on the received link. But I thought this would be automatic in Firebase. If Firebase doesn't have this built-in, I have to put all the security over the top to stop users from authenticating when they have not yet activated their account.
This is a pretty valid concern. I suppose the way around this is to check whether the signed-in user is verified whenever the app is launched. The User object that is returned from Firebase Auth has an emailVerified flag. Check this page for more details.
Using this flag you can choose to show a different screen or pop-up that has a button to send a verification link to the registered email address. Until the user verifies this address, you can limit access to some of the app's screens if you want.
Please note that I have not checked if this emailVerified flag is true for sign ups using Federated login providers like Google Sign-in and Apple Sign In. You might want to check that out.

Drupal 8 - User Account Mail

I have some issue with User Account Settings. (Drupal 8)
Normaly there is a possibility to change the content on every mail...but it's does not work.
If an user register to my website (from a front form) a different email is send than the one i configure here:
enter image description here
Someone ?
The Welcome (new user created by administrator) email template (as its label says) is for accounts created by admin, not for users who manually register on your site.
The email template your users are receiving is Welcome (awaiting approval) or Welcome (no approval required), depending on whether administrator approval is required or not.

SigninwithIntuit with multiple user of the same QuickBook Company

I've successfully Integrated my application with QuickBook Online. I successfully implemented DirectConnectToIntuit, SigninWithIntuit, Disconnect scenario and Test according to https://developer.intuit.com/docs/#api/deki/files/3143/recipe_for_review_success.pdf. I have a situation with DirectConnectToIntuit, SigninWithIntuit for multiple user. Consider the SigninWithIntuit scenerio:
When a first user comes, they click SigninWithIntuit in my application, add their username and password, authorize by Intuit and comeback in my site. As the user is new and his email address is not in my database, I show him the account creation form. When this user submits the form after filling it in then I the create database entry, create the user etc, then login and show ConnectToQuickBook button(G. in the above doc). Everything is OK up to now.
When another user is created in the same QuickBooks online company, then this new user clicks on SignInWithIntuit in my application, and they come back to my app after authorization. For this user, I will not show the account Creation form, I just create this new user and assign as a user of the previous created company, login and show the ConnectToIntuit button. But how can I determine the company of the user? I don't have an access token or access token secret yet to do that.
It is answered here (Intuit's live community) -
https://intuitdeveloper.lc.intuit.com/questions/1188167-signinwithintuit-with-multiple-user-of-the-same-quickbook-company?jump_to=answer_2643393

BlackBerry 10 / WebWorks 2 send email automatically

I'm writing an app to prepare an email message with data provided by the user in a form. Upon the user clicking "finish" in the form, the email message gets prepared on the email card, but the user still has to click Send.
I used this method to prepare the message: blackberry.invoke.card.invokeEmailComposer. How do I get the message to send immediately after the message is prepared?
That behavior is currently not available. As you describe, the invokeEmailComposer() method opens a new screen (named a 'Card') where the user can confirm/modify/cancel/submit an email.
One of the benefits of the emailComposer card is that you give the user the ability to select which email account they wish to send it from (e.g. if they have both a personal and work account on the device).

How to get email of a face book account

I have an android application which need the email address of the face book logged in candidate.
My application works as follows
the user can log in to my application using his face book account. After logged in he can select some items and clicks on OK button. When the user clicks the button ok we need to send an email to his "email address" telling that the details of the items he selected.
I am able to get the first_name and Last_name values but i also need the email address.
can any one tell me how to get the email.
You need to get Facebook extended permissions for that. Specifically you need the email extended permission.
Here's the link to the documentation where you can take a look at all Facebook's permissions you can use in its API.
When you authenticate, just make sure scope contains email like this:
https://www.facebook.com/dialog/oauth?
client_id=YOUR_APP_ID&redirect_uri=YOUR_URL&scope=email,read_stream