static async Task <bool> StartCustomTabsActivity(Uri url)
{
// Is only set to true if BindServiceAsync succeeds and no exceptions are thrown
var success = false;
var parentActivity = ActivityStateManager.Default.GetCurrentActivity(true);
var customTabsActivityManager = CustomTabsActivityManager.From(parentActivity);
try
{
if (await BindServiceAsync(customTabsActivityManager))
{
var customTabsIntent = new CustomTabsIntent.Builder(customTabsActivityManager.Session)
.SetShowTitle(true)
.Build();
customTabsIntent.Intent.SetData(global::Android.Net.Uri.Parse(url.OriginalString));
if (customTabsIntent.Intent.ResolveActivity(parentActivity.PackageManager) != null)
{
WebAuthenticatorIntermediateActivity.StartActivity(parentActivity, customTabsIntent.Intent);
success = true;
}
}
}
finally
{
try
{
customTabsActivityManager.Client?.Dispose();
}
finally
{
}
}
return(success);
}
public async Task <WebAuthenticatorResult> AuthenticateAsync(WebAuthenticatorOptions webAuthenticatorOptions)
{
var url = webAuthenticatorOptions?.Url;
var callbackUrl = webAuthenticatorOptions?.CallbackUrl;
var packageName = Application.Context.PackageName;
// Create an intent to see if the app developer wired up the callback activity correctly
var intent = new Intent(Intent.ActionView);
intent.AddCategory(Intent.CategoryBrowsable);
intent.AddCategory(Intent.CategoryDefault);
intent.SetPackage(packageName);
intent.SetData(global::Android.Net.Uri.Parse(callbackUrl.OriginalString));
// Try to find the activity for the callback intent
if (!PlatformUtils.IsIntentSupported(intent, packageName))
{
throw new InvalidOperationException($"You must subclass the `{nameof(WebAuthenticatorCallbackActivity)}` and create an IntentFilter for it which matches your `{nameof(callbackUrl)}`.");
}
// Cancel any previous task that's still pending
if (tcsResponse?.Task != null && !tcsResponse.Task.IsCompleted)
{
tcsResponse.TrySetCanceled();
}
tcsResponse = new TaskCompletionSource <WebAuthenticatorResult>();
currentRedirectUri = callbackUrl;
var parentActivity = ActivityStateManager.Default.GetCurrentActivity(true);
var customTabsActivityManager = CustomTabsActivityManager.From(parentActivity);
try
{
if (await BindServiceAsync(customTabsActivityManager))
{
var customTabsIntent = new CustomTabsIntent.Builder(customTabsActivityManager.Session)
.SetShowTitle(true)
.Build();
customTabsIntent.Intent.SetData(global::Android.Net.Uri.Parse(url.OriginalString));
WebAuthenticatorIntermediateActivity.StartActivity(parentActivity, customTabsIntent.Intent);
}
else
{
// Fall back to opening the system browser if necessary
var browserIntent = new Intent(Intent.ActionView, global::Android.Net.Uri.Parse(url.OriginalString));
ActivityStateManager.Default.GetCurrentActivity().StartActivity(browserIntent);
}
return(await tcsResponse.Task);
}
finally
{
try
{
customTabsActivityManager.Client?.Dispose();
}
finally
{
}
}
}