これは、私のプロジェクトで機能したLocalNotificationのサンプルコードです。
Objective-C：
AppDelegateファイルのこのコードブロック：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[launchOptions valueForKey:UIApplicationLaunchOptionsLocalNotificationKey];
// Override point for customization after application launch.
return YES;
}
// This code block is invoked when application is in foreground (active-mode)
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
UIAlertView *notificationAlert = [[UIAlertView alloc] initWithTitle:@"Notification" message:@"This local notification"
delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[notificationAlert show];
// NSLog(@"didReceiveLocalNotification");
}
任意のViewControllerの.mファイル内のこのコードブロック：
-(IBAction)startLocalNotification { // Bind this method to UIButton action
NSLog(@"startLocalNotification");
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:7];
notification.alertBody = @"This is local notification!";
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.soundName = UILocalNotificationDefaultSoundName;
notification.applicationIconBadgeNumber = 10;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
上記のコードは、startLocalNotificationをバインドするボタンを押すと、7秒後にAlertViewを表示します。アプリケーションがバックグラウンドにある場合、BadgeNumberを10としてデフォルトの通知音とともに表示します。
このコードはiOS 7.x以前では正常に動作しますが、iOS 8ではコンソールで次のエラーを表示します：
アラートを使用してローカル通知をスケジュールしようとしたが、アラートを表示する権限をユーザーから受け取っていない
つまり、ローカル通知に登録する必要があります。これは以下を使用して実現できます。
if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]){
[application registerUserNotificationSettings [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
ローカル通知については blog を参照することもできます。
スイフト：
AppDelegate.Swiftファイルは次のようになります。
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: UIUserNotificationType.Sound | UIUserNotificationType.Badge | UIUserNotificationType.Alert, categories: nil))
return true
}
ローカル通知を作成するSwiftファイル（たとえばViewController.Swift）には以下のコードが含まれている必要があります。
//MARK: - Button functions
func buttonIsPressed(sender: UIButton) {
println("buttonIsPressed function called \(UIButton.description())")
var localNotification = UILocalNotification()
localNotification.fireDate = NSDate(timeIntervalSinceNow: 3)
localNotification.alertBody = "This is local notification from Swift 2.0"
localNotification.timeZone = NSTimeZone.localTimeZone()
localNotification.repeatInterval = NSCalendarUnit.CalendarUnitMinute
localNotification.userInfo = ["Important":"Data"];
localNotification.soundName = UILocalNotificationDefaultSoundName
localNotification.applicationIconBadgeNumber = 5
localNotification.category = "Message"
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
}
//MARK: - viewDidLoad
class ViewController: UIViewController {
var objButton : UIButton!
. . .
override func viewDidLoad() {
super.viewDidLoad()
. . .
objButton = UIButton.buttonWithType(.Custom) as? UIButton
objButton.frame = CGRectMake(30, 100, 150, 40)
objButton.setTitle("Click Me", forState: .Normal)
objButton.setTitle("Button pressed", forState: .Highlighted)
objButton.addTarget(self, action: "buttonIsPressed:", forControlEvents: .TouchDown)
. . .
}
. . .
}
iOS 9以下でローカル通知を使用する方法は、iOS 10ではまったく異なります。
以下のAppleリリースノートからの画面は、これを示しています。
UserNotificationについては、 Appleリファレンスドキュメント を参照できます。
以下はローカル通知のコードです：
Objective-C：
App-delegate.hファイルでは@import UserNotifications;を使用しますアプリデリゲートは
UNUserNotificationCenterDelegateプロトコルに準拠する必要がありますdidFinishLaunchingOptionsで以下のコードを使用します。UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter]; [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) { if (!error) { NSLog(@"request authorization succeeded!"); [self showAlert]; } }]; -(void)showAlert { UIAlertController *objAlertController = [UIAlertController alertControllerWithTitle:@"Alert" message:@"show an alert!" preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) { NSLog(@"Ok clicked!"); }]; [objAlertController addAction:cancelAction]; [[[[[UIApplication sharedApplication] windows] objectAtIndex:0] rootViewController] presentViewController:objAlertController animated:YES completion:^{ }]; }次に、View Controllerでボタンを作成し、IBActionで次のコードを使用します：
UNMutableNotificationContent *objNotificationContent = [[UNMutableNotificationContent alloc] init]; objNotificationContent.title = [NSString localizedUserNotificationStringForKey:@“Notification!” arguments:nil]; objNotificationContent.body = [NSString localizedUserNotificationStringForKey:@“This is local notification message!“arguments:nil]; objNotificationContent.sound = [UNNotificationSound defaultSound]; // 4. update application icon badge number objNotificationContent.badge = @([[UIApplication sharedApplication] applicationIconBadgeNumber] + 1); // Deliver the notification in five seconds. UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:10.f repeats:NO]; UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@“ten” content:objNotificationContent trigger:trigger]; // 3. schedule localNotification UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter]; [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) { if (!error) { NSLog(@“Local Notification succeeded“); } else { NSLog(@“Local Notification failed“); } }];
Swift 3：
AppDelegate.Swiftファイルではimport UserNotificationsを使用します- Appdelegateは
UNUserNotificationCenterDelegateプロトコルに準拠する必要があります didFinishLaunchingWithOptionsで以下のコードを使用// Override point for customization after application launch. let center = UNUserNotificationCenter.current() center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in // Enable or disable features based on authorization. if error != nil { print("Request authorization failed!") } else { print("Request authorization succeeded!") self.showAlert() } } func showAlert() { let objAlert = UIAlertController(title: "Alert", message: "Request authorization succeeded", preferredStyle: UIAlertControllerStyle.alert) objAlert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil)) //self.presentViewController(objAlert, animated: true, completion: nil) UIApplication.shared().keyWindow?.rootViewController?.present(objAlert, animated: true, completion: nil) }次に、View Controllerでボタンを作成し、IBActionで次のコードを使用します：
let content = UNMutableNotificationContent() content.title = NSString.localizedUserNotificationString(forKey: "Hello!", arguments: nil) content.body = NSString.localizedUserNotificationString(forKey: "Hello_message_body", arguments: nil) content.sound = UNNotificationSound.default() content.categoryIdentifier = "notify-test" let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 5, repeats: false) let request = UNNotificationRequest.init(identifier: "notify-test", content: content, trigger: trigger) let center = UNUserNotificationCenter.current() center.add(request)
Appdelegate.mファイルで、applicationDidEnterBackgroundに次のコードを記述して、ローカル通知を取得します
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.repeatInterval = NSDayCalendarUnit;
[notification setAlertBody:@"Hello world"];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}
ローカル通知の作成はとても簡単です。次の手順に従ってください。
ViewDidLoad（）関数で、アプリが通知を表示する許可をユーザーに求めます。このために、次のコードを使用できます。
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge], completionHandler: {didAllow, error in })次に、ボタンを作成し、アクション関数で次のコードを記述して通知を表示できます。
//creating the notification content let content = UNMutableNotificationContent() //adding title, subtitle, body and badge content.title = "Hey this is Simplified iOS" content.subtitle = "iOS Development is fun" content.body = "We are learning about iOS Local Notification" content.badge = 1 //getting the notification trigger //it will be called after 5 seconds let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false) //getting the notification request let request = UNNotificationRequest(identifier: "SimplifiedIOSNotification", content: content, trigger: trigger) //adding the notification to notification center UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)通知が表示されます。通知ボタンをタップした後、ホームボタンをクリックするだけです。アプリケーションがフォアグラウンドにあるとき、通知は表示されません。ただし、iPhone Xを使用している場合は、アプリがフォアグラウンドにある場合でも通知を表示できます。このためには、UNUserNotificationCenterDelegateというデリゲートを追加するだけです。
詳細については、このブログ投稿をご覧ください：iOS Local Notification Tutorial
Swift 5で更新通常、3種類のローカル通知を使用します
- シンプルなローカル通知
- アクション付きのローカル通知
- コンテンツを使用したローカル通知
簡単なテキスト通知を送信できる場所、またはアクションボタンと添付ファイルを使用できる場所。
アプリでUserNotificationsパッケージを使用する次の例では、通知許可のリクエスト、ユーザーアクションAppDelegate自体による通知の準備と送信、および異なるタイプのローカル通知テストをリストするView Controllerの使用を示しています。
AppDelegate
import UIKit
import UserNotifications
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
let notificationCenter = UNUserNotificationCenter.current()
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
//Confirm Delegete and request for permission
notificationCenter.delegate = self
let options: UNAuthorizationOptions = [.alert, .sound, .badge]
notificationCenter.requestAuthorization(options: options) {
(didAllow, error) in
if !didAllow {
print("User has declined notifications")
}
}
return true
}
func applicationWillResignActive(_ application: UIApplication) {
}
func applicationDidEnterBackground(_ application: UIApplication) {
}
func applicationWillEnterForeground(_ application: UIApplication) {
}
func applicationWillTerminate(_ application: UIApplication) {
}
func applicationDidBecomeActive(_ application: UIApplication) {
UIApplication.shared.applicationIconBadgeNumber = 0
}
//MARK: Local Notification Methods Starts here
//Prepare New Notificaion with deatils and trigger
func scheduleNotification(notificationType: String) {
//Compose New Notificaion
let content = UNMutableNotificationContent()
let categoryIdentifire = "Delete Notification Type"
content.sound = UNNotificationSound.default
content.body = "This is example how to send " + notificationType
content.badge = 1
content.categoryIdentifier = categoryIdentifire
//Add attachment for Notification with more content
if (notificationType == "Local Notification with Content")
{
let imageName = "Apple"
guard let imageURL = Bundle.main.url(forResource: imageName, withExtension: "png") else { return }
let attachment = try! UNNotificationAttachment(identifier: imageName, url: imageURL, options: .none)
content.attachments = [attachment]
}
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
let identifier = "Local Notification"
let request = UNNotificationRequest(identifier: identifier, content: content, trigger: trigger)
notificationCenter.add(request) { (error) in
if let error = error {
print("Error \(error.localizedDescription)")
}
}
//Add Action button the Notification
if (notificationType == "Local Notification with Action")
{
let snoozeAction = UNNotificationAction(identifier: "Snooze", title: "Snooze", options: [])
let deleteAction = UNNotificationAction(identifier: "DeleteAction", title: "Delete", options: [.destructive])
let category = UNNotificationCategory(identifier: categoryIdentifire,
actions: [snoozeAction, deleteAction],
intentIdentifiers: [],
options: [])
notificationCenter.setNotificationCategories([category])
}
}
//Handle Notification Center Delegate methods
func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
completionHandler([.alert, .sound])
}
func userNotificationCenter(_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: @escaping () -> Void) {
if response.notification.request.identifier == "Local Notification" {
print("Handling notifications with the Local Notification Identifier")
}
completionHandler()
}
}
およびViewController
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var appDelegate = UIApplication.shared.delegate as? AppDelegate
let notifications = ["Simple Local Notification",
"Local Notification with Action",
"Local Notification with Content",]
override func viewDidLoad() {
super.viewDidLoad()
}
// MARK: - Table view data source
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return notifications.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
cell.textLabel?.text = notifications[indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let notificationType = notifications[indexPath.row]
let alert = UIAlertController(title: "",
message: "After 5 seconds " + notificationType + " will appear",
preferredStyle: .alert)
let okAction = UIAlertAction(title: "Okay, I will wait", style: .default) { (action) in
self.appDelegate?.scheduleNotification(notificationType: notificationType)
}
alert.addAction(okAction)
present(alert, animated: true, completion: nil)
}
}
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.repeatInterval = NSDayCalendarUnit;
[notification setAlertBody:@"Hello world"];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}
これは機能しますただしiOS 8.0以降、アプリケーションは-[UIApplication registerUserNotificationSettings:]を使用してユーザー通知を登録する前にUILocalNotificationsをスケジュールして提示する必要があります。これを忘れないでください。
-(void)kundanselect
{
NSMutableArray *allControllers = [[NSMutableArray alloc] initWithArray:self.navigationController.viewControllers];
NSArray *allControllersCopy = [allControllers copy];
if ([[allControllersCopy lastObject] isKindOfClass: [kundanViewController class]])
{
[[NSNotificationCenter defaultCenter]postNotificationName:@"kundanViewControllerHide"object:nil userInfo:nil];
}
else
{
[[NSUserDefaults standardUserDefaults] setInteger:4 forKey:@"selected"];
[self performSegueWithIdentifier:@"kundansegue" sender:self];
}
}
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(ApparelsViewControllerHide) name:@"ApparelsViewControllerHide" object:nil];
私はあなたが認可を要求し、通知のためにアプリを登録したと仮定しています。
ローカル通知を作成するコードは次のとおりです
@available(iOS 10.0, *)
func send_Noti()
{
//Create content for your notification
let content = UNMutableNotificationContent()
content.title = "Test"
content.body = "This is to test triggering of notification"
//Use it to define trigger condition
var date = DateComponents()
date.calendar = Calendar.current
date.weekday = 5 //5 means Friday
date.hour = 14 //Hour of the day
date.minute = 10 //Minute at which it should be sent
let trigger = UNCalendarNotificationTrigger(dateMatching: date, repeats: true)
let uuid = UUID().uuidString
let req = UNNotificationRequest(identifier: uuid, content: content, trigger: trigger)
let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.add(req) { (error) in
print(error)
}
}
iOS 8以上のユーザーは、これを動作させるためにAppデリゲートにこれを含めてください。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)])
{
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
return YES;
}
そして、このコード行を追加すると役立ちます、
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.repeatInterval = NSDayCalendarUnit;
[notification setAlertBody:@"Hello world"];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}