async Task <bool> RequestStoragePermission()
{
//We always have permission on anything lower than marshmallow.
if ((int)Build.VERSION.SdkInt < 23)
{
return(true);
}
var status = await Permissions.CheckStatusAsync <StoragePermission>();
if (status != PermissionStatus.Granted)
{
Console.WriteLine("Does not have storage permission granted, requesting.");
var result = await Permissions.RequestAsync <StoragePermission>();
if (result != PermissionStatus.Granted)
{
Console.WriteLine("Storage permission Denied.");
return(false);
}
}
return(true);
}
static async Task CheckPermissions(params string[] permissions)
{
//See which ones we need to request.
var permissionsToRequest = new List <string>();
foreach (var permission in permissions)
{
var permissionStatus = PermissionStatus.Unknown;
switch (permission)
{
case nameof(Permissions.Camera):
permissionStatus = await Permissions.CheckStatusAsync <Permissions.Camera>();
break;
case nameof(Permissions.Photos):
permissionStatus = await Permissions.CheckStatusAsync <Permissions.Photos>();
break;
case nameof(Permissions.Microphone):
permissionStatus = await Permissions.CheckStatusAsync <Permissions.Microphone>();
break;
}
if (permissionStatus != PermissionStatus.Granted)
{
permissionsToRequest.Add(permission);
}
}
//Nothing to request, Awesome!
if (permissionsToRequest.Count == 0)
{
return;
}
var results = new Dictionary <string, PermissionStatus>();
foreach (var permission in permissions)
{
switch (permission)
{
case nameof(Permissions.Camera):
results.Add(permission, await Permissions.RequestAsync <Permissions.Camera>());
break;
case nameof(Permissions.Photos):
results.Add(permission, await Permissions.RequestAsync <Permissions.Photos>());
break;
case nameof(Permissions.Microphone):
results.Add(permission, await Permissions.RequestAsync <Permissions.Microphone>());
break;
}
}
//check for anything not granted, if none, Awesome!
var notGranted = results.Where(r => r.Value != PermissionStatus.Granted);
if (notGranted.Count() == 0)
{
return;
}
//Gunna need those permissions :(
var missingPermissions = string.Join(", ", notGranted.Select(r => r.Key).ToArray());
throw new UnauthorizedAccessException($"{missingPermissions} permission(s) are required.");
}
async Task <bool> RequestCameraPermissions()
{
//We always have permission on anything lower than marshmallow.
if ((int)Build.VERSION.SdkInt < 23)
{
return(true);
}
bool checkCamera = HasPermissionInManifest(Android.Manifest.Permission.Camera);
var hasStoragePermission = await Permissions.CheckStatusAsync <StoragePermission>();
var hasCameraPermission = PermissionStatus.Granted;
if (checkCamera)
{
hasCameraPermission = await Permissions.CheckStatusAsync <Permissions.Camera>();
}
var permissions = new List <string>();
var camera = nameof(Permissions.Camera);
var storage = nameof(StoragePermission);
if (hasCameraPermission != PermissionStatus.Granted)
{
permissions.Add(camera);
}
if (hasStoragePermission != PermissionStatus.Granted)
{
permissions.Add(storage);
}
if (permissions.Count == 0) //good to go!
{
return(true);
}
var results = new Dictionary <string, PermissionStatus>();
foreach (var permission in permissions)
{
switch (permission)
{
case nameof(Permissions.Camera):
results.Add(permission, await Permissions.RequestAsync <Permissions.Camera>());
break;
case nameof(StoragePermission):
results.Add(permission, await Permissions.RequestAsync <StoragePermission>());
break;
}
}
if (results.ContainsKey(storage) &&
results[storage] != PermissionStatus.Granted)
{
Console.WriteLine("Storage permission Denied.");
return(false);
}
if (results.ContainsKey(camera) &&
results[camera] != PermissionStatus.Granted)
{
Console.WriteLine("Camera permission Denied.");
return(false);
}
return(true);
}
