【发布时间】：2017-05-16 15:27:27
【问题描述】：
我对通知服务扩展有疑问。 我已按照分步说明进行操作 https://developer.xamarin.com/guides/ios/platform_features/introduction-to-ios10/user-notifications/enhanced-user-notifications/#Working_with_Service_Extensions
为了实现，我是这样做的。
- 添加了与我的应用具有相同前缀的通知服务扩展（添加后缀，例如：APP：com.testapp.main - EXT：com.testapp.main.notificationextension）
- 在 Apple 会员中心创建了 APPID 标识符 com.testapp.main.notificationextension
- 已创建证书和配置文件以发送 APP ID com.testapp.main.notificationextension 的推送通知
- 导入到 Xcode 和 Xamarin 证书和配置中
- 参考通知扩展参考构建我的应用程序。
- 已创建存档以上传到 TestFlight
- 带有分发证书和配置文件的签名应用
- 带有分发证书和配置文件的签名扩展
- 已上传到 TestFlight
- 为我的应用下载并允许推送通知
- 使用 Localytics Dashboard 发送丰富的推送通知以进行消息传递 - 设备收到推送通知但通知服务扩展的 NotificationService.cs 代码未通过！
这是我的 NotificationService 代码：
using System;
using Foundation;
using UserNotifications;
namespace NotificationServiceExtension
{
[Register("NotificationService")]
public class NotificationService : UNNotificationServiceExtension
{
Action<UNNotificationContent> ContentHandler { get; set; }
UNMutableNotificationContent BestAttemptContent { get; set; }
const string ATTACHMENT_IMAGE_KEY = "ll_attachment_url";
const string ATTACHMENT_TYPE_KEY = "ll_attachment_type";
const string ATTACHMENT_FILE_NAME = "-localytics-rich-push-attachment.";
protected NotificationService(IntPtr handle) : base(handle)
{
// Note: this .ctor should not contain any initialization logic.
}
public override void DidReceiveNotificationRequest(UNNotificationRequest request, Action<UNNotificationContent> contentHandler)
{
System.Diagnostics.Debug.WriteLine("Notification Service DidReceiveNotificationRequest");
ContentHandler = contentHandler;
BestAttemptContent = (UNMutableNotificationContent)request.Content.MutableCopy();
if (BestAttemptContent != null)
{
string imageURL = null;
string imageType = null;
if (BestAttemptContent.UserInfo.ContainsKey(new NSString(ATTACHMENT_IMAGE_KEY)))
{
imageURL = BestAttemptContent.UserInfo.ValueForKey(new NSString(ATTACHMENT_IMAGE_KEY)).ToString();
}
if (BestAttemptContent.UserInfo.ContainsKey(new NSString(ATTACHMENT_TYPE_KEY)))
{
imageType = BestAttemptContent.UserInfo.ValueForKey(new NSString(ATTACHMENT_TYPE_KEY)).ToString();
}
if (imageURL == null || imageType == null)
{
ContentHandler(BestAttemptContent);
return;
}
var url = NSUrl.FromString(imageURL);
var task = NSUrlSession.SharedSession.CreateDownloadTask(url, (tempFile, response, error) =>
{
if (error != null)
{
ContentHandler(BestAttemptContent);
return;
}
if (tempFile == null)
{
ContentHandler(BestAttemptContent);
return;
}
var cache = NSSearchPath.GetDirectories(NSSearchPathDirectory.CachesDirectory, NSSearchPathDomain.User, true);
var cachesFolder = cache[0];
var guid = NSProcessInfo.ProcessInfo.GloballyUniqueString;
var fileName = guid + ATTACHMENT_FILE_NAME + imageType;
var cacheFile = cachesFolder + fileName;
var attachmentURL = NSUrl.CreateFileUrl(cacheFile, false, null);
NSError err = null;
NSFileManager.DefaultManager.Move(tempFile, attachmentURL, out err);
if (err != null)
{
ContentHandler(BestAttemptContent);
return;
}
UNNotificationAttachmentOptions options = null;
var attachment = UNNotificationAttachment.FromIdentifier("localytics-rich-push-attachment", attachmentURL, options, out err);
if (attachment != null)
{
BestAttemptContent.Attachments = new UNNotificationAttachment[] { attachment };
}
ContentHandler(BestAttemptContent);
return;
});
task.Resume();
}
else {
ContentHandler(BestAttemptContent);
}
}
public override void TimeWillExpire()
{
// 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.
ContentHandler(BestAttemptContent);
return;
}
}
}
【问题讨论】：
-
那么问题是什么？
-
设备收到推送通知但未通过NotificationService Extension的NotificationService.cs代码！
-
“不通过”是什么意思？你的意思是
DidReceiveNotificationRequest没有被执行？ -
确切。我也尝试在 DidReceiveNotificationRequest 中仅更改 push 的标题，但没有被调用。
-
您运行的是哪个版本的 iOS？扩展在 iOS 10 之前不可用。另外，我假设您将扩展作为一个新项目包含在您的应用程序所在的解决方案中？
标签： ios push-notification notifications xamarin.ios localytics