ios - 应用程序关闭时本地通知不更新徽章编号

Question

我注意到,当在ios设备中收到本地通知时,通知会显示在通知中心,但应用程序徽章编号在应用程序关闭时不会更新.

我需要触摸通知中心中的通知,以便将本地推送消息传输到应用程序.

这是正常行为吗？这可以通过使用远程推送通知来解决吗？

Answer 1

您可以applicationIconBadgeNumber在UILocalNotification对象中使用该参数.

基本上:

localNotificationObject.applicationIconBadgeNumber++;

例:

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [[NSDate date] dateByAddingTimeInterval:20];
localNotification.alertBody = @"Some Alert";

//the following line is important to set badge number
localNotification.applicationIconBadgeNumber++;

[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

但问题是,徽章编号在后续(多个)本地通知中没有增加(这里有一个场景但是为了简单起见,我们只要说徽章在2个或更多,背靠背,本地通知后仍保持1).
在这种情况下,是 ...推送通知似乎是要走的路
(但要注意推送通知并不总是可靠...检查:链接)

嗯...要使用推送通知进行正确的徽章编号更新,您应该知道可以在推送通知的有效负载中发送徽章计数.
收到此推送通知后,iOS会将徽章计数更改为推送通知中指定的徽章计数(此时无需打开应用程序).

示例(续):

设置applicationIconBadgeNumber到0,因为它有助于在某些情况下(可选)

- (void)applicationWillResignActive:(UIApplication *)application {
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
}

- (void)applicationWillTerminate:(UIApplication *)application {
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
}

额外:

您还可以在终止/关闭或辞职时手动设置徽章编号.
通常......在以下任何或所有方法中:

• -applicationWillResignActive
• -applicationDidEnterBackground
• -applicationWillTerminate(badgeNumber应用关闭时设置)

例:

- (void)applicationWillResignActive:(UIApplication *)application {
    //Called when the application is about to move from active to inactive state.
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:[[[UIApplication sharedApplication] scheduledLocalNotifications] count]];
    //...
}

- (void)applicationWillTerminate:(UIApplication *)application {
    // Called when the application is about to terminate.
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:[[[UIApplication sharedApplication] scheduledLocalNotifications] count]];
    //...
}