CountryCodePicker | Android CountryCodePicker will help users | Android library

Edit: It has been solved.

This question is not similar to previous ones. I have referred to app crash while using firebase phone Auth in android but my app is still crashing.

So I am trying to design a chat app where the user can login with OTP provided by Firebase but when I enter the OTP(right/wrong) received on phone the app crashes. If someone can please guide me it'll be fantastic.

Note: I have included the implementation "androidx.browser:browser:1.3.0" dependency but the app is still crashing when I try to verify the OTP

The main error I am getting is

enter code here I have a registration form in android application where user can enter their details. And i try to store data into firebase, the data are storing but the problem is in phone number age will store, in age field name will store. How to solve this issue? Please help!

Helperclass

public class UserHelperClass {

I was trying to build an OTP system in Android Studio and I came up with the code given below, however, the app is crashing every time I try to send OTP to my phone number. Here is the code:

Signp3rdClass.java

In my flutter app users log in using their phone. so how can I store the users id in cloud firestore and save the account for when the user log in again and keep their detail? (I used shared preferences to check if the user has logged)

Here is my code if necessary.

How can I register with a phone number and stay logged in until I log out. I'm using flutter and I already can register a user with a phone number but when the app is re-opened it starts at the login page.

The idea is to stay logged in after sign-up and even after app closed. and I also can't make circular Indicator to show that the app is loading (I would love it if you showed me how to do this as well)

Here is my code.

i am having big problems with my release version of my app. (https://play.google.com/store/apps/details?id=com.conta.ftof try to download it to help me if you can) In the debug version everything works, but in the relase version as soon as I authenticate firebase with a phone number or just authenticate and click on the recycler view button the app crashes ... I recently added the sha keys -1 and sha-256 to the firebase project and I added the new json file because the authentication was not working, now the authentication works great but as soon as you are authenticated, as I have already said, the app goes into crush. I don't know if the fault is google ads, which I added 1 week ago in contactsactivity ... The strange thing is that the debug version is fully functional ... I leave you the code...

enter image description here

LogCat of crush

Hi I want to make edit text look like this

I have tried adding country picker in textinputlayout, but it never draws view as shown in layout editor

I am working on an app in which users have to select a country code, i was successful in creating a spinner for the said purpose as shown in this link:
Creating a spinner for choosing country code But i am getting problem in reading the value selected in the spinner.

How can i change dialog of CountryCodePicker (CCP) title from Select a Country to Select a country or region. im using CCP library for Country Selector. As you can see the below picture dialog title is Select a country.