[英]cannot identify if user can receive my notification or not in IOs
I want to find out programmatically if user has enabled push notifications or not. 我想以编程方式找出用户是否启用了推送通知。
I am using this code: 我正在使用此代码:
UIRemoteNotificationType status = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (status == UIRemoteNotificationTypeNone)
{
NSLog(@"User doesn't want to receive push-notifications");
}
If I do this: 如果我这样做:
when the app asks for permission, I press ok, and then from the settings set the Notification center to OFF and the Alert Style to None, I cannot receive the notification but I do not see the NSLog. 当应用程序请求许可时,我按OK,然后从设置中将“通知中心”设置为“关闭”,并将“警报样式”设置为“无”,我无法收到通知,但看不到NSLog。
if notification center is left to OFF and Alert Style is different than None, I do not see the NSLog, but I can receive notifications. 如果通知中心保持关闭状态,并且“警报样式”与“无”不同,则看不到NSLog,但是我可以接收通知。
Can someone explain the behavior of 1,2 and what check should I do? 有人可以解释1,2的行为,我应该做什么检查?
UIRemoteNotificationType notificationTypes = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
notificationTypes
has the integer code which will help us to find what are the remote notification enabled. notificationTypes
具有整数代码,它将帮助我们查找启用了什么远程通知。 For that, we need to understand the UIRemoteNotificationType
, 为此,我们需要了解
UIRemoteNotificationType
,
typedef enum {
UIRemoteNotificationTypeNone = 0,
UIRemoteNotificationTypeBadge = 1 << 0,
UIRemoteNotificationTypeSound = 1 << 1,
UIRemoteNotificationTypeAlert = 1 << 2,
UIRemoteNotificationTypeNewsstandContentAvailability = 1 << 3
} UIRemoteNotificationType;
According to the Bitwise left shift calculation, following are the values, 根据按位左移计算,以下是这些值:
Following code will help us to find what are the remote notification enabled for your app, 以下代码将帮助我们查找为您的应用启用了哪些远程通知,
if (notificationTypes == UIRemoteNotificationTypeNone) {
// Do what ever you need to here when notifications are disabled
NSLog(@"User doesn't want to receive push-notifications");
} else if (notificationTypes == UIRemoteNotificationTypeBadge) {
// Badge only
NSLog(@"Badges Only");
} else if (notificationTypes == UIRemoteNotificationTypeAlert) {
// Alert only
NSLog(@"Alerts only");
} else if (notificationTypes == UIRemoteNotificationTypeSound) {
// Sound only
NSLog(@"Sound Only");
}
else if (notificationTypes == UIRemoteNotificationTypeNewsstandContentAvailability) {
// NewsstandContentAvailability only
NSLog(@"NewsstandContentAvailability Only");
}else if (notificationTypes == 5)//Badge(1)+Alert(4)=5 {
// Badge & Alert
NSLog(@"Badges and Alert");
} else if (notificationTypes == 3)//Badge(1)+Sound(2)=3 {
// Badge & Sound
NSLog(@"Badges and Sound");
} else if (notificationTypes == 6)//Alert(4)+Sound(2)=6 {
// Alert & Sound
NSLog(@"Alert and Sound");
} else if (notificationTypes == 7)//Badge(1)+Alert(4)+Sound(2)=7 {
// Badge, Alert & Sound
NSLog(@"Badge, Alert & Sound");
}
else if (notificationTypes == 10)//Sound(2)+NewsstandContentAvailability(8)=10 {
// Sound & NewsstandContentAvailability
NSLog(@"Sound & NewsstandContentAvailability");
}
Note: I haven't write all possible if-else statements. 注意:我还没有编写所有可能的if-else语句。 Please add according to your need.
请根据您的需要添加。
Hope this will help you. 希望这会帮助你。
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