public async Task RequestMediaLibraryAuthorizationAsync()
{
/*
* An application should only ever call
* `MPMediaLibrary.AuthorizationStatus` when their current
* authorization is `MPMediaLibraryAuthorizationStatus.NotDetermined`
*/
if (MPMediaLibrary.AuthorizationStatus != MPMediaLibraryAuthorizationStatus.NotDetermined)
{
return;
}
/*
* `MPMediaLibrary.RequestAuthorizationAsync ()` triggers a
* prompt for the user asking if they wish to allow the
* application that requested authorization access to
* the device's media library.
*
* This prompt will also include the value provided in
* the application's Info.plist for the
* `NSAppleMusicUsageDescription` key. This usage
* description should reflect what the application
* intends to use this access for.
*/
await MPMediaLibrary.RequestAuthorizationAsync();
InvokeOnMainThread(() => NSNotificationCenter.DefaultCenter.PostNotificationName(CloudServiceDidUpdateNotification, null));
}
public async override void ViewDidLoad()
{
base.ViewDidLoad();
ConfigureSearchController();
TableView.Source = new TableSource(this);
TableView.TableFooterView = new UIView();
TableView.BackgroundView = new UIView();
selectedMediaItems = new List <MPMediaItem>();
if (UIDevice.CurrentDevice.CheckSystemVersion(9, 3))
{
var status = await MPMediaLibrary.RequestAuthorizationAsync();
if (status == MPMediaLibraryAuthorizationStatus.Authorized)
{
LoadMediaItemsForMediaTypeAsync(MPMediaType.Music);
}
else
{
DisplayMediaLibraryError();
}
}
else
{
LoadMediaItemsForMediaTypeAsync(MPMediaType.Music);
}
}
