如何在查看后删除通知中心的推送通知

Question

有没有办法在点击后处理来自通知中心的推送通知，并在我的应用程序启动时将其删除？

Answer 1

我知道这是黑客攻击，但您可以通过更改应用程序上的徽章编号来清除所有通知。

- (void)application:(UIApplication*)application didReceiveRemoteNotification (NSDictionary*)payload
{
    NSLog(@"Received notification: %@", payload);
    //swapping between two badge numbers to clear notifications
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
    ...
}

如果您已经有一个徽章编号，您不想丢失（上面的示例将简单地清除最后是徽章编号）您可以执行类似的操作

- (void)application:(UIApplication*)application didReceiveRemoteNotification (NSDictionary*)payload
{
    NSLog(@"Received notification: %@", payload);
    /*
     storing current badge number then swapping between 2 values to make sure we 
     clear the badge number. Once this is done set badge number back to original 
     value.
    */
    int badgeNum = [[UIApplication sharedApplication] applicationIconBadgeNumber]
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:badgeNum];
    ...
}

这可能不是最佳实践，但它可以完成工作并且客户不会知道其中的区别。我喜欢称其为临时工。修复直到我偶然发现更好的解决方案。希望这对某人有帮助！