参考链接
1、活久见的重构 - iOS 10 UserNotifications 框架解析 -- OneV's Den
2、iOS10推送通知进阶(Notification Extension）
3、Push Debugging Guide - iOS
结果展示
只实现如图的效果，只添加一个 Notification Service Extension: 通知服务扩展 即可。
带图通知.jpg
具体实现
1、File -> New -> Target
image.png
2、配置相关
Automatically manage signing
Automatically manage signing 还是第一选择，如果需要手动配置：
- Bundle Identifier： 要以 “主App的Bundle Identifier ”为前缀。
- Signing：
App ID：要独立于主App有Target自己的App ID
Certificate：要独立于主App有Target自己的Certificate
Provisioning Profile： 要独立于主App有Target自己的Provisioning Profile
3、代码实现
NotificationService.swift
import UserNotifications
class NotificationService: UNNotificationServiceExtension {
var contentHandler: ((UNNotificationContent) -> Void)?
var bestAttemptContent: UNMutableNotificationContent?
var downloadTask: URLSessionDownloadTask?
override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
self.contentHandler = contentHandler
bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
if let bestAttemptContent = bestAttemptContent {
if let imageURL = bestAttemptContent.userInfo["media-url"] {
if let urlString = imageURL as? String {
carnivalHandleAttachmentDownload(content: bestAttemptContent.userInfo, urlString: urlString)
}
} else {
contentHandler(bestAttemptContent)
return
}
}
}
func carnivalHandleAttachmentDownload(content: [AnyHashable : Any], urlString: String) {
guard let url = URL(string: urlString) else {
self.contentHandler!(self.bestAttemptContent!)
return
}
self.downloadTask = URLSession.shared.downloadTask(with: url) { (location, response, error) in
if let location = location {
let tmpDirectory = NSTemporaryDirectory()
let tmpFile = "file://".appending(tmpDirectory).appending(url.lastPathComponent)
let tmpUrl = URL(string: tmpFile)!
try! FileManager.default.moveItem(at: location, to: tmpUrl)
if let attachment = try? UNNotificationAttachment(identifier: "image", url: tmpUrl) {
self.bestAttemptContent?.attachments = [attachment]
}
}
self.contentHandler!(self.bestAttemptContent!)
}
self.downloadTask?.resume()
}
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)
}
}
}
4、info.plist 配置
- 趟坑记录一： "media-url": "https://i.imgur.com/t4WGJQx.jpg" ，如果你的图片没法展示，请确认图片链接是否是
http://的,支持Http需要如下图配置。
ERROR：App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
默认不支持http，需要如图配置
5、参数解析：
- 通过APNs我们发送或收到的数据格式长这样：
{
"aps": {
"alert": {
"body": "Push notification body",
"title": "Push notification title"
},
"mutable-content": 1 // 1 表示可变内容，即支持Notification Service Extension， 0表示不支持
// "category": "rich-apns" // 自定义push notification UI，另一个Notification Content Extension支持的
},
"media-url": "https://i.imgur.com/t4WGJQx.jpg" // 这些是自定义的，可以在你的Extension解析
}
Debug in NotificationServiceExtension
？: 你会发现你没办法在“Target： NotificationServiceExtension”的 NotificationService.swift 中断点Debug
- 其实你要做到以下几点
1、在开发环境支持发通知：
开发环境的push证书.png
2、Run “Target： NotificationServiceExtension” 而不是主App。
3、在开发环境发通知给自己：如下文的推送测试工具部分，“gateway.sandbox.push.apple.com”就是Apple提供给开发者在Debug环境发通知的服务。
推送测试工具：
Easy APNs Provider 亲测好用
Easy APNs Provider.png
使用界面.png
