我正在寻找一种方法来确定用户是否有,通过设置,启用或禁用他们的推送通知我的应用程序。
当前回答
这个Swifty解决方案对我来说效果很好(iOS8+),
方法:
func isNotificationEnabled(completion:@escaping (_ enabled:Bool)->()){
if #available(iOS 10.0, *) {
UNUserNotificationCenter.current().getNotificationSettings(completionHandler: { (settings: UNNotificationSettings) in
let status = (settings.authorizationStatus == .authorized)
completion(status)
})
} else {
if let status = UIApplication.shared.currentUserNotificationSettings?.types{
let status = status.rawValue != UIUserNotificationType(rawValue: 0).rawValue
completion(status)
}else{
completion(false)
}
}
}
用法:
isNotificationEnabled { (isEnabled) in
if isEnabled{
print("Push notification enabled")
}else{
print("Push notification not enabled")
}
}
Ref
其他回答
在最新版本的iOS中,这种方法已被弃用。支持iOS 7和iOS 8使用:
UIApplication *application = [UIApplication sharedApplication];
BOOL enabled;
// Try to use the newer isRegisteredForRemoteNotifications otherwise use the enabledRemoteNotificationTypes.
if ([application respondsToSelector:@selector(isRegisteredForRemoteNotifications)])
{
enabled = [application isRegisteredForRemoteNotifications];
}
else
{
UIRemoteNotificationType types = [application enabledRemoteNotificationTypes];
enabled = types & UIRemoteNotificationTypeAlert;
}
斯威夫特 3+
if #available(iOS 10.0, *) {
UNUserNotificationCenter.current().getNotificationSettings(completionHandler: { (settings: UNNotificationSettings) in
// settings.authorizationStatus == .authorized
})
} else {
return UIApplication.shared.currentUserNotificationSettings?.types.contains(UIUserNotificationType.alert) ?? false
}
RxSwift可观察的iOS10+版本:
import UserNotifications
extension UNUserNotificationCenter {
static var isAuthorized: Observable<Bool> {
return Observable.create { observer in
DispatchQueue.main.async {
current().getNotificationSettings(completionHandler: { (settings: UNNotificationSettings) in
if settings.authorizationStatus == .authorized {
observer.onNext(true)
observer.onCompleted()
} else {
current().requestAuthorization(options: [.badge, .alert, .sound]) { (granted, error) in
observer.onNext(granted)
observer.onCompleted()
}
}
})
}
return Disposables.create()
}
}
}
iOS8+ (OBJECTIVE C)
#import <UserNotifications/UserNotifications.h>
[[UNUserNotificationCenter currentNotificationCenter]getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
switch (settings.authorizationStatus) {
case UNAuthorizationStatusNotDetermined:{
break;
}
case UNAuthorizationStatusDenied:{
break;
}
case UNAuthorizationStatusAuthorized:{
break;
}
default:
break;
}
}];
我尝试使用@Shaheen ghassy提供的解决方案支持iOS 10及以上版本,但发现剥夺问题enabledRemoteNotificationTypes。所以,我找到的解决方案是使用isregisteredforremotenotification而不是enabledRemoteNotificationTypes,这在iOS 8中已弃用。下面是我最新的解决方案,对我来说非常有效:
- (BOOL)notificationServicesEnabled {
BOOL isEnabled = NO;
if ([[UIApplication sharedApplication] respondsToSelector:@selector(currentUserNotificationSettings)]){
UIUserNotificationSettings *notificationSettings = [[UIApplication sharedApplication] currentUserNotificationSettings];
if (!notificationSettings || (notificationSettings.types == UIUserNotificationTypeNone)) {
isEnabled = NO;
} else {
isEnabled = YES;
}
} else {
if ([[UIApplication sharedApplication] isRegisteredForRemoteNotifications]) {
isEnabled = YES;
} else{
isEnabled = NO;
}
}
return isEnabled;
}
我们可以很容易地调用这个函数,访问它的Bool值,并将其转换为字符串值:
NSString *str = [self notificationServicesEnabled] ? @"YES" : @"NO";
希望它也能帮助到其他人:) 快乐的编码。
这个Swifty解决方案对我来说效果很好(iOS8+),
方法:
func isNotificationEnabled(completion:@escaping (_ enabled:Bool)->()){
if #available(iOS 10.0, *) {
UNUserNotificationCenter.current().getNotificationSettings(completionHandler: { (settings: UNNotificationSettings) in
let status = (settings.authorizationStatus == .authorized)
completion(status)
})
} else {
if let status = UIApplication.shared.currentUserNotificationSettings?.types{
let status = status.rawValue != UIUserNotificationType(rawValue: 0).rawValue
completion(status)
}else{
completion(false)
}
}
}
用法:
isNotificationEnabled { (isEnabled) in
if isEnabled{
print("Push notification enabled")
}else{
print("Push notification not enabled")
}
}
Ref
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