Amazon Account

You need to edit AndroidManifest by adding the following elements in to <application>.

amazon_auth_enabled - allows to show\hide Amazon account authorization button

Give your SHA-256 certificate fingerprint and MD5 debug/release key to your producers.

For SHA-256

keytool -v -list -alias alias_name -keystore [path_to_key]\[key_name].keystore -storepass [password]

For MD5

keytool -exportcert -alias alias_name -keystore [path_to_key]\[key_name].keystore -storepass [password] | openssl dgst -md5 | sed 's/[a-fA-F0-9][a-fA-F0-9]/&:/g; s/:$//'

<activity android:name="com.amazon.identity.auth.device.workflow.WorkflowActivity"
    android:theme="@android:style/Theme.NoDisplay"
    android:allowTaskReparenting="true"
    android:exported="true"
    android:launchMode="singleTask">
    <intent-filter>
        <action android:name="android.intent.action.VIEW"/>
        <category android:name="android.intent.category.DEFAULT"/>
        <category android:name="android.intent.category.BROWSABLE"/>
        <!-- android:host must use the full package name found in Manifest General Attributes -->
        <data android:host="${applicationId}" android:scheme="amzn"/>
    </intent-filter>
</activity>
        
<meta-data android:name="com.platform101xp.amazon.auth_enabled"
    android:value="@bool/amazon_auth_enabled" />

Copy api_key.txt file to app folder.