iOS 本地推送

众所周知，iOS中的通知推送分为：本地和远程两种。本地推送主要用于日历闹钟等提醒类应用中，APNS远程推送以后专门写一篇介绍，本文暂时按下不表。今天的主角是:UILocalNotification

启动通知

创建一个本地通知：

//本地通知
UILocalNotification *localNoti = [[UILocalNotification alloc] init];
//时区
localNoti.timeZone = [NSTimeZone defaultTimeZone];
//触发时间
localNoti.fireDate = [NSDate dateWithTimeIntervalSinceNow:10.0];
//重复间隔
localNoti.repeatInterval = kCFCalendarUnitSecond;
//通知内容
localNoti.alertBody = @"欢迎来到英雄联盟";
//通知声音
localNoti.soundName = UILocalNotificationDefaultSoundName;
//通知徽标
[UIApplication sharedApplication].applicationIconBadgeNumber += 1;
//通知参数
localNoti.userInfo = [NSDictionary dictionaryWithObject:@"传递信息内容" forKey:@"通知的Key"];
//发送通知:
[[UIApplication sharedApplication] scheduleLocalNotification:localNoti];

想要通知有效，需要在 application: didFinishLaunchingWithOptions:里注册通知：

//注册通知：
if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {

UIUserNotificationType type = UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound;

UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type categories:nil];

[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
}

效果图如下：





收到通知后的处理可以写在方法 application:(UIApplication *)application didReceiveLocalNotification: 里面：

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"本地通知" message:[notification.userInfo allValues].firstObject preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cacel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"取消");
}];
UIAlertAction *action = [UIAlertAction actionWithTitle:@"确认" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"确认");
}];
[alert addAction:cacel];
[alert addAction:action];

[self.window.rootViewController presentViewController:alert animated:YES completion:nil];

取消通知

取消一个本地通知：

// 获取所有本地通知数组
NSArray *localNotifications = [UIApplication sharedApplication].scheduledLocalNotifications;

for (UILocalNotification *notification in localNotifications) {
NSDictionary *userInfo = notification.userInfo;
if (userInfo) {
// 根据设置通知参数时指定的key来获取通知参数
NSString *info = userInfo[key];

// 如果找到需要取消的通知，则取消
if (info != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:notification];
//图标的数字清零
([UIApplication sharedApplication].applicationIconBadgeNumber >= 1) ?([UIApplication sharedApplication].applicationIconBadgeNumber -= 1):0 ;
break;
}
}
}

最后

Demo_Git地址