![]() ![]() user has previously denied this permission. Indicates that the requestor should prompt the user as to why the app requires the permission, because the Requests the user to accept or deny a permission. This method is optional and a PermissionException is often thrown if a permission is not declared. ![]() Throw new System.NotImplementedException() This method checks if current status of the permission. The following example code demonstrates the basic abstract members, but without implementation: public class MyPermission : Permissions.BasePermission Create a class that inherits from Permissions.BasePermission, and implement the required abstract methods. The Permissions API was created to be flexible and extensible for applications that require more validation or permissions that aren't included in. Status = await Permissions.RequestAsync() Prompt the user with additional information as to why the permission is needed On iOS once a permission has been denied it may not be requested again from the application Prompt the user to turn on in settings If (status = PermissionStatus.Denied & DeviceInfo.Platform = DevicePlatform.iOS) PermissionStatus status = await Permissions.CheckStatusAsync() public async Task CheckAndRequestLocationPermission() The following code presents the general usage pattern for determining whether a permission has been granted, and then requesting it if it hasn't. Other platforms always return false when calling this method. If the method returns true, this is because the user has denied or disabled the permission in the past. The ShouldShowRationale method can be used to determine if an informative UI should be displayed. This limits the ability to know if the user denied the permission or if it's the first time the permission is being requested. Android doesn't have this ability, and also defaults permission status to Disabled. On iOS, you must specify a string that is displayed to the user. It's best practice to explain to your user why your application needs a specific permission. Further prompts must be handled by the developer to check if a permission is in the Denied state, and then ask the user to manually turn it on. On some platforms, a permission request can only be activated a single time. The following example requests the LocationWhenInUse permission: PermissionStatus status = await Permissions.RequestAsync() Permissions shouldn't be requested from your MauiProgram or App class, and should only be requested once the first page of the app has appeared. If the user previously granted permission, and hasn't revoked it, then this method will return Granted without showing a dialog to the user. To request a permission from the users, use the RequestAsync method along with the specific permission to request. The user granted permission or is automatically granted. The permission is in an unknown state, or on iOS, the user has never been prompted. When using CheckStatusAsync or RequestAsync, a PermissionStatus is returned that can be used to determine the next steps: ![]() On Android, you can call ShouldShowRationale to detect if the user has already denied the permission in the past. On iOS if the status is Denied you should prompt the user to change the permission in the settings. If the status is Granted then there's no need to make other calls. iOS returns Unknown, while others return Denied. Each operating system returns a different default state, if the user has never been prompted. It's best to check the status of the permission before requesting it. The following example checks the status of the LocationWhenInUse permission: PermissionStatus status = await Permissions.CheckStatusAsync() Ī PermissionException is thrown if the required permission isn't declared. To check the current status of a permission, use the Permissions.CheckStatusAsync method along with the specific permission to get the status for. If a permission is marked as ❌, it will always return Granted when checked or requested. The following table uses ✔️ to indicate that the permission is supported and ❌ to indicate the permission isn't supported or isn't required: Permission The following table describes the available permissions: Even though the API allows access to a common permission, there may be differences between operating systems related to that permission. However, each operating system has a different set of permissions. NET MAUI attempts to abstract as many permissions as possible. The Permissions type is available in the namespace. ![]() This class allows you to check and request permissions at run-time. NET Multi-platform App UI (.NET MAUI) Permissions class. This article describes how you can use the. ![]()
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