Basic Flutter Language with 5 topics

1. Create Flutter project

Details:

- First, created new folder in Drive C using with command line

- Second, created flutter project in this new folder using with with command line

(Tip; show how to create new flutter project in File, New, using mouse)

2. Change package name and application name

Details:

- First, install rename package by visiting pub.dev official website

- Second, explain about how to set the name of package name, referred with two websites: Google firebase and Oracle websites

- Third, change package name and application name

Code: 

pub global run rename --bundleId com.LinNaingOo.Exercise

pub global run rename --appname "My Exercise"

3. Generate keystore file with the format of .jks

Details:

- using with this comment line

keytool -genkey -v -keystore C:\LinNaingOo\exercise\exercise.jks -storetype JKS -keyalg RSA -keysize 2048 -validity 10000 -alias myexercise

(noted: if you are facing the errors; please go to run flutter doctor -v and take java binary address and go to terminal without java in behind of bin\ (bin\java to bin) and the paste above code.

4. Export SHA1 certificate key

Details:

- Before exporting SHA1 certificate key, go to add some code by following from official website for signing release file .aab playstore.

- Export SHA1 certificate key method was showing at 20:22.

(you can skip to 20:22 if you don't want to know how to signing for release .aab)

Code: 

keytool -list -v -keystore  C:\LinNaingOo\exercise\exercise.jks -alias myexercise -storepass 123abcdM-/: -keypass 123abcdM-/:

5. Generate Hash key

Details:

- First, Go to download openssl folder from this website:

https://code.google.com/archive/p/openssl-for-windows/downloads?authuser=1

- Second, run the following code

Code:

keytool -exportcert -alias myexercise -keystore C:\LinNaingOo\exercise\exercise.jks | openssl sha1 -binary | openssl base64