android emulator

Juan Rivero 20

I am running a maui blazor app on an android emulator. The app is built to first launch the app and then has the option to login into azureb2c. When I click the login on the app it looks like is launching the https://xxxxb2c.b2clogin.com/tfp/xxxxxb2c.onmicrosoft.com/b2c_1_xxxxxb2c/oauth2/v2.0/authorize?...... and then when the login page is supposed to show I only get a blank page. I am using Azure B2C to authenticate with azure.

If I copy the whole above url on my machine it takes me to the login page from azure.

So, this is an emulator issue. I am using a (Google API's Pixel 5 - API 30) - Android 11.0 - API 30, processor x86, Memory 1G and resolution 1080 x 2340 - 440 dpi image.

The windows machine in Blazor works with the authentication and the sign in page. I can run the app.

Akshay-MSFT 17,656 Reputation points Microsoft Employee

2023-05-12T11:02:52.5933333+00:00

@Juan Rivero

Hope you got a chance to review the action plan suggested below. Please do let me know if you have any queries in the comments section. If you don't have any further queries and the suggestion works as per your business need. Please "Accept the answer(Yes)" and "share you feedback ". This will help us and others in the community as well.

Thanks,

Akshay Kaushik

1 answer

Akshay-MSFT 17,656 Microsoft Employee

@Juan Rivero

Thank you for posting your query on Microsoft Q&A, from above description I could understand that your application sign in is not working for Azure B2C on Android emulator.

Please do correct me if this not the issue.

To start with Kindly validate the AndroidManifest.xml and add BrowserTabActivity activity to the application body:

<!--Intent filter to capture System Browser or Authenticator calling back to our app after sign-in-->
<activity
    android:name="com.microsoft.identity.client.BrowserTabActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="msauth"
            android:host="Package_Name"
            android:path="/Signature_Hash" />
    </intent-filter>
</activity>

Please do let me know by responding in the comments section if the issue persist.

Thanks,

Akshay Kaushik

Please "Accept the answer" (Yes), and share your feedback if the suggestion answers you’re your query. This will help us and others in the community as well.

Juan Rivero 20

Hi Akshay,

Thank you for responding back, but where in the Android Manifest you will add that ?

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
    <application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true">
			
	</application>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
	<queries>
		<package android:name="com.azure.authenticator" />
		<package android:name="UserDetailsClient.Droid" />
		<package android:name="com.microsoft.windowsintune.companyportal" />
		<!-- Required for API Level 30 to make sure we can detect browsers
		(that don't support custom tabs) -->
		<intent>
			<action android:name="android.intent.action.VIEW" />
			<category android:name="android.intent.category.BROWSABLE" />
			<data android:scheme="https" />
		</intent>
		<!-- Required for API Level 30 to make sure we can detect browsers that support custom tabs -->
		<!-- https://developers.google.com/web/updates/2020/07/custom-tabs-android-11#detecting_browsers_that_support_custom_tabs -->
		<intent>
			<action android:name="android.support.customtabs.action.CustomTabsService" />
		</intent>
	</queries>
	<uses-sdk android:minSdkVersion="21" />
</manifest>

Akshay-MSFT 17,656 Microsoft Employee

@Juan Rivero

Add the BrowserTabActivity activity as a child of the <application> element**.** This entry allows Azure AD to call back to your application after it completes the authentication:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
    <application 
android:allowBackup="true" 
android:icon="@mipmap/appicon" 
android:roundIcon="@mipmap/appicon_round" 
android:supportsRtl="true">


<!-- Add the BrowserTabActivity activity here -->


<activity
    android:name="com.microsoft.identity.client.BrowserTabActivity"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="msauth"
            android:host="Enter_the_Package_Name"
            android:path="/Enter_the_Signature_Hash" />
    </intent-filter>
</activity>


			
	</application>


    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
	<queries>
		<package android:name="com.azure.authenticator" />
		<package android:name="UserDetailsClient.Droid" />
		<package android:name="com.microsoft.windowsintune.companyportal" />
		<!-- Required for API Level 30 to make sure we can detect browsers
		(that don't support custom tabs) -->
		<intent>
			<action android:name="android.intent.action.VIEW" />
			<category android:name="android.intent.category.BROWSABLE" />
			<data android:scheme="https" />
		</intent>
		<!-- Required for API Level 30 to make sure we can detect browsers that support custom tabs -->
		<!-- https://developers.google.com/web/updates/2020/07/custom-tabs-android-11#detecting_browsers_that_support_custom_tabs -->
		<intent>
			<action android:name="android.support.customtabs.action.CustomTabsService" />
		</intent>
	</queries>
	<uses-sdk android:minSdkVersion="21" />
</manifest>

In the manifest sample shared above

Use your Azure portal Package name to replace android:host=. value. It should look like com.azuresamples.msalandroidapp.
Use your Azure portal Signature Hash to replace android:path= value. Ensure that there's a leading / at the beginning of your Signature Hash. It should look like /1wIqXSqBj7w+h11ZifsnqwgyKrY=.

You can find these values in the Authentication blade of your app registration as well.

Thanks,

Akshay Kaushik

Please "Accept the answer" (Yes), and share your feedback if the suggestion answers you’re your query. This will help us and others in the community as well.

Share via

android emulator

1 answer