iOS开发之注册推送通知权限
1、⾸先在⼯程设置开启通知权限（Push Notifications开关打开）
2、注册通知权限，在此步骤会弹出⽤户授权提⽰
#import <UserNotifications/UserNotifications.h>
if ([[UIDevice currentDevice].systemVersion floatValue] >= 10.0){
if (@available(iOS 10.0, *)) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
__weak typeof(self) weakSelf = self;
[center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert | UNAuthorizationOptionBadge | UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (granted) {
[center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
if (settings.authorizationStatus == UNAuthorizationStatusAuthorized){
dispatch_async(dispatch_get_main_queue(), ^{
[[UIApplication sharedApplication] registerForRemoteNotifications];
});
register for}
}];
}
}];
}
} else if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0){
if (@available(iOS 8.0, *)) {
if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {
UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTyp
eSound categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
[[UIApplication sharedApplication] registerForRemoteNotifications];
} else {
[[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}
}
}
注意iOS8.0和iOS10.0之后需要⽤不同的⽅法
3、获取到远程推送的token值
在Appdelegate类中重写下⾯的⽅法
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
{
NSString *token = [NSString stringWithFormat:@"%@",deviceToken];
token = [token stringByReplacingOccurrencesOfString:@"<" withString:@""];
token = [token stringByReplacingOccurrencesOfString:@">" withString:@""];
token = [token stringByReplacingOccurrencesOfString:@"" withString:@""];
}
获取到token值之后妥善保存，并传给服务器，服务器根据token值就可以通过APNS给app发送远程推送通知了啦。

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