iOS10通知(三)--通知的取消和修改

在创建通知时，我们可以指定标识符。这个标识符可以用来管理通知。

在 iOS 10 之前，我们很难取消掉某一个特定的通知，也不能主动移除或者更新已经展示的通知。

iOS 10 中，UserNotifications 框架提供了一系列管理通知的 API，你可以做到

其中关键就在于在创建请求时使用同样的标识符。

取消和修改目前还不能用于远程推送，我还没有查找到相关可以实现的资料，如有了解的可以留言告诉我

详细的代码实现如下

-(void)btnClicked:(UIButton *)sender
{
//创建两个用于测试的消息体
UNMutableNotificationContent *content1 = [[UNMutableNotificationContent alloc]init];
content1.title = @"1";
content1.body = @"通知1";
UNMutableNotificationContent *content2 = [[UNMutableNotificationContent alloc]init];
content2.title = @"2";
content2.body = @"通知2";
switch (sender.tag) {
case 1001:
{
//发送
取消
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:5 repeats:NO];
NSString *identifier = @"SendAndCancle";
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content1 trigger:trigger];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
//
}];
//延迟2秒之后执行
dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0/*延迟执行时间*/ * NSEC_PER_SEC));
dispatch_after(delayTime, dispatch_get_main_queue(), ^{
[[UNUserNotificationCenter currentNotificationCenter] removePendingNotificationRequestsWithIdentifiers:@[identifier]];
});
break;
}
case 1002:
{
//发送
更新
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:5 repeats:NO];
NSString *identifier = @"SendAndModify";
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content1 trigger:trigger];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
//
}];
//延迟2秒之后执行
dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0/*延迟执行时间*/ * NSEC_PER_SEC));
dispatch_after(delayTime, dispatch_get_main_queue(), ^{
//用相同的标识再次发送即可覆盖
UNTimeIntervalNotificationTrigger *triggerNew = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:3 repeats:NO];
UNNotificationRequest *requestNew = [UNNotificationRequest requestWithIdentifier:identifier content:content2 trigger:triggerNew];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:requestNew withCompletionHandler:^(NSError * _Nullable error) {
//
}];
});
break;
}
case 1003:
{
//发送
删除
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:3 repeats:NO];
NSString *identifier = @"deliveredSendAndRemove";
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content1 trigger:trigger];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
//
}];
//延迟4秒之后执行
dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5.0/*延迟执行时间*/ * NSEC_PER_SEC));
dispatch_after(delayTime, dispatch_get_main_queue(), ^{
[[UNUserNotificationCenter currentNotificationCenter] removeDeliveredNotificationsWithIdentifiers:@[identifier]];
});
break;
}
case 1004:
{
//发送 修改
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:3 repeats:NO];
NSString *identifier = @"deliveredSendAndModify";
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content1 trigger:trigger];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
//
}];
//延迟4秒之后执行
dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5.0/*延迟执行时间*/ * NSEC_PER_SEC));
dispatch_after(delayTime, dispatch_get_main_queue(), ^{
//用相同的标识再次发送即可覆盖
UNTimeIntervalNotificationTrigger *triggerNew = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:3 repeats:NO];
UNNotificationRequest *requestNew = [UNNotificationRequest requestWithIdentifier:identifier content:content2 trigger:triggerNew];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:requestNew withCompletionHandler:^(NSError * _Nullable error) {
//
}];
});
break;
}
default:
break;
}
}

最后

以上就是喜悦火龙果为你收集整理的iOS10通知(三)--通知的取消和修改的全部内容，希望文章能够帮你解决iOS10通知(三)--通知的取消和修改所遇到的程序开发问题。

如果觉得靠谱客网站的内容还不错，欢迎将靠谱客网站推荐给程序员好友。