当用户拒绝时，我可以限制用户使用我的应用程序，比如推送通知

Question

I am currently working on app, that in my thougths require push notifications, users can turn them off, but app needs them, so i am just showing alert to user "You need to allow push notifications to use this app", is it allowed in Android and IOS? Are there any restrictions, like "i have to let user use the app even when notifications turned off"

Answer 1

Apple's app review guidelines:

4.5.4 Push Notifications must not be required for the app to function, and should not be used for advertising, promotions, or direct marketing purposes or to send sensitive personal or confidential information. Abuse of these services may result in revocation of your privileges.

https://developer.apple.com/app-store/review/guidelines/#design

Answer 2

There is a method called ContextCompat.checkSelfPermission() which you can use in android to automatically check every time when user is using your app. Something like below:

if (ContextCompat.checkSelfPermission(yourCurrentActivity, Manifest.permission.YOUR_PERMISSION)
    != PackageManager.PERMISSION_GRANTED) {
// Permission is not granted (You can perform whatever functionality you want to if permission is denied)
}

If the app has the permission, the method returns PERMISSION_GRANTED , and the app can proceed with the operation. If the app does not have the permission, the method returns PERMISSION_DENIED , and the app has to explicitly ask the user for permission.

You can read more in here.

However, this is not the case with IOS applications. You cannot restrict the application to use a certain permission like push notification in your case. You can follow some best practices. These are stringent guidelines from developers as well which you have to stick to. Read this for the IOS push notification guidelines.