Google Map

Get Map Key

Get Key Direction Api

https://developers.google.com/maps/documentation/directions/

Add build.gradle

For Map and Location

    compile 'com.google.android.gms:play-services-maps:11.6.0'

    compile 'com.google.android.gms:play-services-location:11.6.0'

For Directions

    compile 'com.akexorcist:googledirectionlibrary:1.1.0'

Add key in Manifest

 <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>



 <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyB8htza_6JysxLhR1WEt_feydsZZL12bZ4" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />