The Google API console

The Google API console is a web portal that allows developers to manage Google services for their project and it can be at https://console.developers.google.com.

1. Visit the developer console with your Google account. Create a project packt-wear or something that is convenient for developers:

2. After creating the project successfully, go to the API Manager | Library section and enable the Google Maps Android API:

3. Click on the Enable button for enabling Maps for Android:

4. After enabling the API in the console facility, we need to create the API key with the development machine's SHA1 and the project's package address, as follows:

5. To get your machine's SHA1 fingerprint, open Android Studio. On the right-hand side of Android Studio, you will see the Gradle project menu. Then, follow these steps:
   1. Click on Gradle (on the right-hand side panel, you will see the Gradle Bar)
   2. Click on Refresh (click on Refresh; on the Gradle Bar, you will see a List of Gradle scripts for your project...