Merge pull request #61 from android/57-example-of-CredentialManagerHandler

Add example for CredentialManagerHandler for issue 57

Author: niharika2810

CredentialManagerWebView/CredentialManagerHandler.kt

@@ -0,0 +1,51 @@
+package com.credmanwebtest.webhandler
+
+import android.app.Activity
+import android.util.Log
+import androidx.credentials.*
+import androidx.credentials.exceptions.*
+
+/**
+ * A class that encapsulates the credential manager object and provides simplified APIs for
+ * creating and retrieving public key credentials. For other types of credentials follow the
+ * documentation https://developer.android.com/training/sign-in/passkeys
+ */
+class CredentialManagerHandler(private val activity: Activity) {
+
+    private val mCredMan = CredentialManager.create(activity.applicationContext)
+    private val TAG = "CredentialManagerHandler"
+
+    /**
+     * Encapsulates the create passkey API for credential manager in a less error-prone manner.
+     *
+     * @param request a create public key credential request JSON required by [CreatePublicKeyCredentialRequest].
+     * @return [CreatePublicKeyCredentialResponse] containing the result of the credential creation.
+     */
+    suspend fun createPasskey(request: String): CreatePublicKeyCredentialResponse {
+        val createRequest = CreatePublicKeyCredentialRequest(request)
+        try {
+            return mCredMan.createCredential(activity, createRequest) as CreatePublicKeyCredentialResponse
+        } catch (e: CreateCredentialException) {
+            // For error handling use guidance from https://developer.android.com/training/sign-in/passkeys
+            Log.i(TAG, "Error creating credential: ErrMessage: ${e.errorMessage}, ErrType: ${e.type}")
+            throw e
+        }
+    }
+
+    /**
+     * Encapsulates the get passkey API for credential manager in a less error-prone manner.
+     *
+     * @param request a get public key credential request JSON required by [GetCredentialRequest].
+     * @return [GetCredentialResponse] containing the result of the credential retrieval.
+     */
+    suspend fun getPasskey(request: String): GetCredentialResponse {
+        val getRequest = GetCredentialRequest(listOf(GetPublicKeyCredentialOption(request, null)))
+        try {
+            return mCredMan.getCredential(activity, getRequest)
+        } catch (e: GetCredentialException) {
+            // For error handling use guidance from https://developer.android.com/training/sign-in/passkeys
+            Log.i(TAG, "Error retrieving credential: ${e.message}")
+            throw e
+        }
+    }
+}

CredentialManagerWebView/PasskeyWebListener.kt

@@ -1,4 +1,4 @@
-package com.leecam.credmanwebtest.webhandler
+package com.credmanwebtest.webhandler
 
 import android.app.Activity
 import android.net.Uri