Generate SHA-1 for Flutter/React-Native/Android-Native app

How to get Release and Debug keys: one more the easiest way (May 2019). All actions are inside Android Studio.

1. Select android/app/build.gradle file and on the right top corner click "Open for Editing in Android Studio"

2. Open Gradle panel and double click on "SigninReport",

see Android studio Gradle Tab

3. That's it! If you use Firebase - add these 2 keys there. You should add both keys, otherwise, without the release key, Google login will not work on the devices.

TERMINAL - another way with the terminal. In case you can't find the "Open for editing .." link.

Go to the project folder in the terminal.

Mackeytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

Windowskeytool -list -v -keystore "\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android

Linuxkeytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

This is the easiest way-

1. Open Android Studio

2. Open Project

3. Reveal android folder

4. Right click "gradlew" file and select Open in Terminal -

5. Go to the terminal view and paste: gradlew signingReport

(edit based on Venkat D. suggestion below: on unix-based systems like mac, you need to specify the current directory like this- ./gradlew signingReport)

6. Press enter and scroll to "Variant: debug" to get the SHA1 key

7. Copy and use wherever you need it, Good Luck!

You won't find a gradle window view in flutter project, so here is a solution for that.. In command prompt navigate to bin folder of jdk and run this command

keytool -list -v -keystore "C:\Users\yourusernamehere\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android

change user name in path