ios (推送)之本地推送

ios (推送)之本地推送

iOS上有兩種訊息通知，一種是本地訊息（Local Notification），一種是遠程訊息(Push Notification，也叫Remote Notification)，設計這兩種通知的目的都是為了提醒使用者，現在有些什麼新鮮的事情發生了，吸引使用者重新開啟應用。本地推送也可以通過伺服器控制，比如說如果有新訊息了，推送訊息，但是，前提是程式必須是開啟的，而遠程推送，是通過蘋果APNS伺服器，推送給手機，手機在推送給具體的哪個程式，一般遠程推送用到的比較多，先介紹下本地推送，下節在介紹遠程推送。

本地推送：

首先，先在appdelegate中註冊：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    [application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];//註冊本地推送        // Override point for customization after application launch.    return YES;}

然後，在具體的viewcontroller中實現推送：

- (IBAction)localPushNow:(id)sender {     dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{        //本地推送        UILocalNotification*notification = [[UILocalNotification alloc]init];        NSDate * pushDate = [NSDate dateWithTimeIntervalSinceNow:10];        if (notification != nil) {            notification.fireDate = pushDate;            notification.timeZone = [NSTimeZone defaultTimeZone];            notification.repeatInterval = kCFCalendarUnitDay;            notification.soundName = UILocalNotificationDefaultSoundName;            notification.alertBody = @"hello，world";            notification.applicationIconBadgeNumber = 0;            NSDictionary*info = [NSDictionary dictionaryWithObject:@"test" forKey:@"name"];            notification.userInfo = info;            [[UIApplication sharedApplication] scheduleLocalNotification:notification];                    }    });}

在appdelegate中會接收到推送資訊：

//接收本地推送

//接收本地推送- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{    NSLog(@"%@",notification.alertBody);    UILabel*label = [[UILabel alloc]init];    label.frame = CGRectMake(0, 0, 160, 20);    label.layer.cornerRadius = 10;    label.backgroundColor = [UIColor blackColor];    label.text = notification.alertBody;    label.textColor = [UIColor whiteColor];    label.font = [UIFont systemFontOfSize:12];    label.textAlignment = NSTextAlignmentCenter;        [self.window addSubview:label];}

過程中可能會出現如下狀況：

Attempting to schedule a local notification……with a sound but haven't received permission from the user to play sounds

Attempting to schedule a local notification……with an alert but haven't received permission from the user to display alerts

可能是因為你沒有註冊，或者設定中沒有開啟推送功能，