推送图像的通知 - iOS - Swift
嗨,我只是想显示图像的推送通知。即时通讯使用下面的代码,即时消息不知道我在哪里做错了它花了我超过3周,我经历了很多链接,但仍然无法修复。下面是我的应用程序委托代码推送图像的通知 - iOS - Swift
AppDelegate.Swift
import UIKit
import UserNotifications
var deviceTokenString:String = ""
var badgeCount = 0
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Push Notification
if #available(iOS 10.0, *)
{
let center = UNUserNotificationCenter.current()
center.requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
// actions based on whether notifications were authorised or not
guard error == nil else {
//Display Error.. Handle Error.. etc..
return
}
if granted
{
//Do stuff here..
}
else {
//Handle user denying permissions..
}
}
application.registerForRemoteNotifications()
} else {
// Fallback on earlier versions
}
registerForRemoteNotification()
// iOS 10 support
if #available(iOS 10, *) {
UNUserNotificationCenter.current().requestAuthorization(options:[.alert, .sound]){ (granted, error) in }
application.registerForRemoteNotifications()
}
// iOS 9 support
else if #available(iOS 9, *) {
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.sound, .alert], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
}
// iOS 8 support
else if #available(iOS 8, *) {
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.sound, .alert], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
}
// iOS 7 support
else {
application.registerForRemoteNotifications(matching: [.sound, .alert])
}
return true
}
func registerForRemoteNotification() {
if #available(iOS 10.0, *) {
let center = UNUserNotificationCenter.current()
center.delegate = self
center.requestAuthorization(options: [.sound, .alert]) { (granted, error) in
if error == nil{
UIApplication.shared.registerForRemoteNotifications()
// UIApplication.shared.applicationIconBadgeNumber = 5
}
}
}
else {
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.sound, .alert], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
// UIApplication.shared.applicationIconBadgeNumber = 5
}
}
func incrementBadgeNumberBy(badgeNumberIncrement: Int)
{
let currentBadgeNumber = UIApplication.shared.applicationIconBadgeNumber
let updatedBadgeNumber = currentBadgeNumber + badgeNumberIncrement
if (updatedBadgeNumber > 0)
{
UIApplication.shared.applicationIconBadgeNumber = updatedBadgeNumber
}
else
{
UIApplication.shared.applicationIconBadgeNumber = 0
}
}
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
print("Couldn't register: \(error)")
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
deviceTokenString = deviceToken.hexString()
// deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
print("device token: \(deviceTokenString)")
}
// Push notification received
func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
// Print notification payload data
badgeCount = badgeCount + 1
self.incrementBadgeNumberBy(badgeNumberIncrement: badgeCount)
print("Push notification received: \(data)")
}
// Notification will present call back
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
completionHandler([.alert, .sound, .badge])
print("UserInfo: \(notification.request.content.userInfo)")
var userinfo = NSDictionary()
userinfo = notification.request.content.userInfo as NSDictionary
let imgData = userinfo.value(forKey: "data")! as! NSDictionary
let url = imgData.value(forKey: "attachment-url")
let imgUrl = URL(string: url as! String)!
// 1. Create Notification Content
let content = UNMutableNotificationContent()
// 2. Create Notification Attachment
URLSession.shared.downloadTask(with: imgUrl)
{(location, response, error) in
print("location: \(location!)")
if error == nil
{
if let location = location
{
// Move temporary file to remove .tmp extension
let tmpDirectory = NSTemporaryDirectory()
let tmpFile = "file://".appending(tmpDirectory).appending(imgUrl.lastPathComponent)
print("tmpFile: \(tmpFile)")
let tmpUrl = URL(string: tmpFile)!
print("tmpUrl: \(tmpUrl)")
try! FileManager.default.moveItem(at: location, to: tmpUrl)
// Add the attachment to the notification content
if let attachment = try? UNNotificationAttachment(identifier: "attachment", url: tmpUrl) {
content.attachments = [attachment]
print("attachment: \(content.attachments)")
// 3. Create Notification Request
let request = UNNotificationRequest.init(identifier: String.UNNotificationRequest.NormalLocalPush.rawValue,
content: content, trigger: nil)
content.title = "\(userinfo.value(forKeyPath: "aps.alert.title")!)"
content.body = "\(userinfo.value(forKeyPath: "aps.alert.body")!)"
content.sound = UNNotificationSound.default()
content.badge = (UIApplication.shared.applicationIconBadgeNumber + 1) as NSNumber;
content.categoryIdentifier = String.UNNotificationCategory.Normal.rawValue
// 4. Add to NotificationCenter
let center = UNUserNotificationCenter.current()
center.add(request)
}
}
}
else
{
print("Error: \(error!)")
}
}.resume()
}
@available(iOS 10.0, *)
// Notification interaction response call back
func userNotificationCenter(_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: @escaping() -> Void) {
print("\(response.notification.request.content.userInfo)")
var userinfo = NSDictionary()
userinfo = response.notification.request.content.userInfo as NSDictionary
let imgData = userinfo.value(forKey: "data")! as! NSDictionary
let url = imgData.value(forKey: "attachment-url")
let imgUrl = URL(string: url as! String)!
// 1. Create Notification Content
let content = UNMutableNotificationContent()
content.title = "\(userinfo.value(forKeyPath: "aps.alert.title")!)"
content.body = "\(userinfo.value(forKeyPath: "aps.alert.body")!)"
content.sound = UNNotificationSound.default()
content.badge = (UIApplication.shared.applicationIconBadgeNumber + 1) as NSNumber;
content.categoryIdentifier = String.UNNotificationCategory.Normal.rawValue // 设置通知类型标示
// 2. Create Notification Attachment
URLSession.shared.downloadTask(with: imgUrl) { (location, response, error) in
if let location = location {
// Move temporary file to remove .tmp extension
let tmpDirectory = NSTemporaryDirectory()
let tmpFile = "file://".appending(tmpDirectory).appending(imgUrl.lastPathComponent)
let tmpUrl = URL(string: tmpFile)!
try! FileManager.default.moveItem(at: location, to: tmpUrl)
// Add the attachment to the notification content
if let attachment = try? UNNotificationAttachment(identifier: "", url: tmpUrl) {
content.attachments = [attachment]
}
}
// Serve the notification content
// self.contentHandler!(content)
}.resume()
// if let attachement = try? UNNotificationAttachment(identifier: "attachment", url: imgUrl, options: nil)
// {
// content.attachments = [attachement]
// }
// 3. Create Notification Request
let request = UNNotificationRequest.init(identifier: String.UNNotificationRequest.NormalLocalPush.rawValue,
content: content, trigger: nil)
// 4. Add to NotificationCenter
let center = UNUserNotificationCenter.current()
center.add(request)
let responseNotificationRequestIdentifier = response.notification.request.identifier
if responseNotificationRequestIdentifier == String.UNNotificationRequest.NormalLocalPush.rawValue ||
responseNotificationRequestIdentifier == String.UNNotificationRequest.LocalPushWithTrigger.rawValue ||
responseNotificationRequestIdentifier == String.UNNotificationRequest.LocalPushWithCustomUI1.rawValue ||
responseNotificationRequestIdentifier == String.UNNotificationRequest.LocalPushWithCustomUI2.rawValue {
let actionIdentifier = response.actionIdentifier
switch actionIdentifier {
case String.UNNotificationAction.Accept.rawValue:
break
case String.UNNotificationAction.Reject.rawValue:
break
case String.UNNotificationAction.Input.rawValue:
break
case UNNotificationDismissActionIdentifier:
break
case UNNotificationDefaultActionIdentifier:
break
default:
break
}
}
completionHandler();
}
}
extension Data
{
func hexString() -> String
{
return self.reduce("") { string, byte in
string + String(format: "%02X", byte)
}
}
}
而下面是我的扩展代码使用自定义推送通知其IM,
Extension.swift
import Foundation
extension String {
enum UNNotificationAction : String {
case Accept
case Reject
case Input
}
enum UNNotificationCategory : String {
case Normal
case Cheer
case CheerText
}
enum UNNotificationRequest : String {
case NormalLocalPush
case LocalPushWithTrigger
case LocalPushWithCustomUI1
case LocalPushWithCustomUI2
}
}
extension URL {
enum ResourceType : String {
case Local
case Local1
case Remote
case AttachmentRemote
}
static func resource(type :ResourceType) -> URL
{
switch type {
case .Local:
return Bundle.main.url(forResource: "cheer", withExtension: "png")!
case .Local1:
return Bundle.main.url(forResource: "hahaha", withExtension: "gif")!
case .Remote:
return URL(string: "http://ww1.sinaimg.cn/large/65312d9agw1f59leskkcij20cs0csmym.jpg")!
case .AttachmentRemote:
return URL(string: "https://assets-cdn.github.com/images/modules/open_graph/github-mark.png")!
}
}
}
extension URLSession {
class func downloadImage(atURL url: URL, withCompletionHandler completionHandler: @escaping (Data?, NSError?) -> Void) {
let dataTask = URLSession.shared.dataTask(with: url) { (data: Data?, response: URLResponse?, error: Error?) in
completionHandler(data, error as NSError?)
}
dataTask.resume()
}
}
和我的Api响应是,
[AnyHashable("aps"):
{
alert = {
body = test;
title = "N-Gal";
};
"mutable-content" = 1;
sound = default;
},
AnyHashable("data"):
{
"attachment-url" = "https://www.n-gal.com/image/cache/catalog/HomeBanner/Banners/1172X450-N-Gal-Footwear-Banner-100x100.jpg";
}]
此代码基于教程https://github.com/maquannene/UserNotifications。请给我一个解决方案来解决这个问题...在此先感谢...!
从您的代码片段中,我得出结论,您正在谈论远程通知。这是一个重要的区别。如果你想“丰富”远程通知(例如添加图像),你需要一个UNNotificationServiceExtension
:
对于本地通知,应用程序创建 休息通知的内容的时候增加了附件。 要将附件添加到远程 通知,请在通知服务发布前使用通知服务扩展来修改 。有关实现通知服务扩展的更多信息 ,请参阅 UNNotificationServiceExtension
来源:Apple documentation。 (重点是我的)
该扩展程序存在于您的应用程序之外,并且在用户看到远程通知之前被称为之前。这样您就有机会在通知计划交付之前加载所有远程资源。有关扩展程序生命周期及其与主机应用程序通信方式的详细信息,请参阅App Extension Programming Guide。
要添加在Xcode的延长,去File > New > Target
并选择通知服务扩展:
这将创建一个新的扩展目标并将其嵌入主机目标:
在NotificationService.swift
文件中,您可以找到可登录的入口点自定义通知内容。
class NotificationService: UNNotificationServiceExtension {
var contentHandler: ((UNNotificationContent) -> Void)?
var bestAttemptContent: UNMutableNotificationContent?
override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
self.contentHandler = contentHandler
bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
if let bestAttemptContent = bestAttemptContent {
// Modify the notification content here...
bestAttemptContent.title = "\(bestAttemptContent.title) [modified]"
contentHandler(bestAttemptContent)
}
}
override func serviceExtensionTimeWillExpire() {
// Called just before the extension will be terminated by the system.
// Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
contentHandler(bestAttemptContent)
}
}
}
请务必查看UNNotificationServiceExtension class overview了解更多详情。
谢谢.....我已经创建了一个服务扩展,但是我犯了一个小错误。无论如何感谢您的答案.. Upvoted!为了一个简洁的答案... –
你能说出它失败的地方吗?它是否收到来自APNS的推送通知?你可以创建一个本地通知_without_图像?图像是否被下载? – GregHNZ
我没有得到任何错误,并且即时接收推送通知,但没有图像,并且图像正在下载并且文件路径类似于file:/// private/var/mobile/Containers/Data/Application/552F6491-A95C-463E-8924-FD8BD53A629D/tmp/NG0330-(1)-100x100.jpg –