ios - UILocalNotification 打开特定项目的详细 View Controller

Question

我想为特定项目设置警报，并让 UILocalNotification 从我的 TableView Controller 中打开特定项目并显示其详细信息。换句话说，当出现通知时，我希望能够点击“显示项目”，而不是显示所有项目的列表，我只想查看该特定项目的详细信息。

为此，我需要存储有关特定项目(标题、索引等)的信息。我该怎么做？将我的项目标题存储在 UILocalNotification.userInfo 中？

Answer 1

添加信息

objective-c

localNotification.userInfo =@{@"title":title,@"index":index};

swift

var userInfo = [String:String]()
userInfo["title"] = title
userInfo["index"] = index
notification.userInfo = userInfo

通知到达时获取信息

objective-c

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
    NSLog(@“title = %@”,notification.userInfo[@"title"]);
    NSLog(@“index = %@”,notification.userInfo[@"index"]);
}

swift

func application(application: UIApplication!, didReceiveLocalNotification notification: UILocalNotification!) {
    println(notification.userInfo?["title"])
    println(notification.userInfo?["index"])
}

*********编辑********

将“标题”和“索引”从通知的 userInfo 传递到 Table View Controller

objective-c

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
    [[NSNotificationCenter defaultCenter] postNotificationName:@"BookNotification" object:notification.userInfo]
    // or update table view data source
}

swift

func application(application: UIApplication!, didReceiveLocalNotification notification: UILocalNotification!) {
    NSNotificationCenter.defaultCenter().postNotificationName("BookNotification", object:notification.userInfo)
    // or update table view data source
}

在 Table View Controller 中添加观察者，当通知到达时获取“title”和“index”，然后更新 Table View Controller datasource 并重新加载表格 View

在 TableView Controller 中 objective-c

[[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(receiveBookNotification:) 
    name:@"BookNotification"
    object:nil];


- (void) receiveTestNotification:(NSNotification *) notification
{ 
    NSString *title = notification.userInfo[@"title"];
    NSString *title = notification.userInfo[@"index"];
    // Update data source and reload
}

swift

NSNotificationCenter.defaultCenter().addObserver(self, selector: "receiveBookNotification:", name:"BookNotification", object: nil)


func receiveTestNotification(notification: NSNotification) {
    let title = notification.userInfo?["title"]
    let index = notification.userInfo?["index"]
    // Update data source and reload
}