Hi Step 1: Develop Map Application using android studio Step 2: For Map viewing we need to have google api key .in order to get api key we need to register application in google api console https://console.developers.google.com/apis/ Step 3; For getting SHA1 Key please follow the steps 1) Go the java installed folder location , open cmd Eg: C:\Program Files\Java\jdk1.7.0_04\bin 2) Type Windows keytool -list -v -keystore "CHANGE WITH OUR KEYSTORE LOC" -alias ALIASNAME -storepass PASSWORD -keypass PASSWORD Mac & Linux keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android Ref: http://www.truiton.com/2015/04/obtaining-sha1...