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在iOS开发中,可以使用UNUserNotificationCenter类来创建计划本地通知。下面是按天、周和小时创建计划本地通知的示例代码:
import UserNotifications
func scheduleDailyNotification() {
let content = UNMutableNotificationContent()
content.title = "提醒"
content.body = "这是每天的通知"
content.sound = UNNotificationSound.default
var dateComponents = DateComponents()
dateComponents.hour = 8
dateComponents.minute = 0
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
let request = UNNotificationRequest(identifier: "dailyNotification", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) { (error) in
if let error = error {
print("创建通知失败:\(error.localizedDescription)")
}
}
}
import UserNotifications
func scheduleWeeklyNotification() {
let content = UNMutableNotificationContent()
content.title = "提醒"
content.body = "这是每周的通知"
content.sound = UNNotificationSound.default
var dateComponents = DateComponents()
dateComponents.weekday = 4 // 周四
dateComponents.hour = 10
dateComponents.minute = 0
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
let request = UNNotificationRequest(identifier: "weeklyNotification", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) { (error) in
if let error = error {
print("创建通知失败:\(error.localizedDescription)")
}
}
}
import UserNotifications
func scheduleHourlyNotification() {
let content = UNMutableNotificationContent()
content.title = "提醒"
content.body = "这是每小时的通知"
content.sound = UNNotificationSound.default
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 3600, repeats: true)
let request = UNNotificationRequest(identifier: "hourlyNotification", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) { (error) in
if let error = error {
print("创建通知失败:\(error.localizedDescription)")
}
}
}
以上代码示例中,我们使用UNMutableNotificationContent类来设置通知的标题、内容和声音。然后,根据不同的需求,使用UNCalendarNotificationTrigger或UNTimeIntervalNotificationTrigger来创建触发器。最后,使用UNNotificationRequest类将通知请求添加到UNUserNotificationCenter中。
注意:在使用本地通知之前,需要在AppDelegate中请求用户授权,以允许发送通知。具体的授权代码可以参考苹果官方文档。
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