当我的应用程序在后台运行时，我需要显示GCM通知。
C＃服务器代码将通知消息发送到ios设备：
public string SendNotification(string apiKey, string token, string _postData)
{
try
{
string tickerText = "Desert Vessel";
string SERVER_API_KEY = apiKey;
var SENDER_ID = "0000....";
string regIds = string.Join("\",\"", token);
NotificationMessage nm = new NotificationMessage();
nm.Title = tickerText;
nm.Message = _postData;
nm.ItemId = 1;
var value = new JavaScriptSerializer().Serialize(nm);
WebRequest tRequest;
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
tRequest.Method = "post";
tRequest.ContentType = "application/json";
tRequest.Headers.Add(string.Format("Authorization: key={0}", SERVER_API_KEY));
tRequest.Headers.Add(string.Format("Sender: id={0}", SENDER_ID));
string postData = "{\"collapse_key\":\"score_update\",\"priority\" : \"high\" ,\"time_to_live\":108,\"delay_while_idle\":true,\"data\": { \"message\" : " + value + ",\"time\": " + "\"" + System.DateTime.Now.ToString() + "\"},\"registration_ids\":[\"" + regIds + "\"]}";
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
tRequest.ContentLength = byteArray.Length;
Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse tResponse = tRequest.GetResponse();
dataStream = tResponse.GetResponseStream();
StreamReader tReader = new StreamReader(dataStream);
String sResponseFromServer = tReader.ReadToEnd();
tReader.Close();
dataStream.Close();
tResponse.Close();
return sResponseFromServer;
}
catch (Exception exp)
{
return "error";
}
}
和Swift代码：
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GGLInstanceIDDelegate, GCMReceiverDelegate {
var window: UIWindow?
let core = Settings()
var connectedToGCM = false
var subscribedToTopic = false
var gcmSenderID: String?
var registrationToken: String?
var registrationOptions = [String: AnyObject]()
let registrationKey = "onRegistrationCompleted"
let messageKey = "onMessageReceived"
let subscriptionTopic = "/topics/global"
// [START register_for_remote_notifications]
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions:
[NSObject: AnyObject]?) -> Bool {
// [START_EXCLUDE]
// Configure the Google context: parses the GoogleService-Info.plist, and initializes
// the services that have entries in the file
var configureError:NSError?
GGLContext.sharedInstance().configureWithError(&configureError)
assert(configureError == nil, "Error configuring Google services: \(configureError)")
gcmSenderID = GGLContext.sharedInstance().configuration.gcmSenderID
// [END_EXCLUDE]
// Register for remote notifications
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(forTypes: [UIUserNotificationType.Alert, .Badge, .Sound], categories: nil)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
// [END register_for_remote_notifications]
// [START start_gcm_service]
let gcmConfig = GCMConfig.defaultConfig()
gcmConfig.receiverDelegate = self
GCMService.sharedInstance().startWithConfig(gcmConfig)
// [END start_gcm_service]
return true
}
func subscribeToTopic() {
// If the app has a registration token and is connected to GCM, proceed to subscribe to the
// topic
if(registrationToken != nil && connectedToGCM) {
GCMPubSub.sharedInstance().subscribeWithToken(self.registrationToken, topic: subscriptionTopic,
options: nil, handler: {(error:NSError?) -> Void in
if let error = error {
// Treat the "already subscribed" error more gently
if error.code == 3001 {
print("Already subscribed to \(self.subscriptionTopic)")
} else {
print("Subscription failed: \(error.localizedDescription)");
}
} else {
self.subscribedToTopic = true;
NSLog("Subscribed to \(self.subscriptionTopic)");
}
})
}
}
// [START connect_gcm_service]
func applicationDidBecomeActive( application: UIApplication) {
// Connect to the GCM server to receive non-APNS notifications
GCMService.sharedInstance().connectWithHandler({(error:NSError?) -> Void in
if let error = error {
print("Could not connect to GCM: \(error.localizedDescription)")
} else {
self.connectedToGCM = true
print("Connected to GCM")
// [START_EXCLUDE]
self.subscribeToTopic()
// [END_EXCLUDE]
}
})
}
// [END connect_gcm_service]
// [START disconnect_gcm_service]
func applicationDidEnterBackground(application: UIApplication) {
GCMService.sharedInstance().disconnect()
// [START_EXCLUDE]
self.connectedToGCM = false
// [END_EXCLUDE]
}
// [END disconnect_gcm_service]
// [START receive_apns_token]
func application( application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken
deviceToken: NSData ) {
// [END receive_apns_token]
// [START get_gcm_reg_token]
// Create a config and set a delegate that implements the GGLInstaceIDDelegate protocol.
let instanceIDConfig = GGLInstanceIDConfig.defaultConfig()
instanceIDConfig.delegate = self
// Start the GGLInstanceID shared instance with that config and request a registration
// token to enable reception of notifications
GGLInstanceID.sharedInstance().startWithConfig(instanceIDConfig)
registrationOptions = [kGGLInstanceIDRegisterAPNSOption:deviceToken,
kGGLInstanceIDAPNSServerTypeSandboxOption:true]
GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID,
scope: kGGLInstanceIDScopeGCM, options: registrationOptions, handler: registrationHandler)
// [END get_gcm_reg_token]
}
// [START receive_apns_token_error]
func application( application: UIApplication, didFailToRegisterForRemoteNotificationsWithError
error: NSError ) {
print("Registration for remote notification failed with error: \(error.localizedDescription)")
// [END receive_apns_token_error]
let userInfo = ["error": error.localizedDescription]
NSNotificationCenter.defaultCenter().postNotificationName(
registrationKey, object: nil, userInfo: userInfo)
}
// [START ack_message_reception]
func application( application: UIApplication,
didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
print("Notification received: \(userInfo)")
if let info = userInfo as? Dictionary<String,AnyObject> {
if let aps = info["aps"] as? Dictionary<String, String> {
var arr = aps["alert"]!.characters.split{$0 == "-"}.map(String.init)
core.setCookie("Trucking", value: arr[0] )
core.setCookie("Company", value: arr[1])
}
}
// This works only if the app started the GCM service
GCMService.sharedInstance().appDidReceiveMessage(userInfo);
// Handle the received message
// [START_EXCLUDE]
NSNotificationCenter.defaultCenter().postNotificationName(messageKey, object: nil,
userInfo: userInfo)
// [END_EXCLUDE]
}
func application( application: UIApplication,
didReceiveRemoteNotification userInfo: [NSObject : AnyObject],
fetchCompletionHandler handler: (UIBackgroundFetchResult) -> Void) {
print("Notification received: \(userInfo)")
// This works only if the app started the GCM service
GCMService.sharedInstance().appDidReceiveMessage(userInfo);
// Handle the received message
// Invoke the completion handler passing the appropriate UIBackgroundFetchResult value
// [START_EXCLUDE]
NSNotificationCenter.defaultCenter().postNotificationName(messageKey, object: nil,
userInfo: userInfo)
handler(UIBackgroundFetchResult.NoData);
// [END_EXCLUDE]
}
// [END ack_message_reception]
func registrationHandler(registrationToken: String!, error: NSError!) {
if (registrationToken != nil) {
self.registrationToken = registrationToken
print("Registration Token: \(registrationToken)")
self.subscribeToTopic()
let userInfo = ["registrationToken": registrationToken]
NSNotificationCenter.defaultCenter().postNotificationName(
self.registrationKey, object: nil, userInfo: userInfo)
core.setCookie("token",value: registrationToken)
} else {
print("Registration to GCM failed with error: \(error.localizedDescription)")
let userInfo = ["error": error.localizedDescription]
NSNotificationCenter.defaultCenter().postNotificationName(
self.registrationKey, object: nil, userInfo: userInfo)
core.setCookie("token",value: "error")
}
}
// [START on_token_refresh]
func onTokenRefresh() {
// A rotation of the registration tokens is happening, so the app needs to request a new token.
print("The GCM registration token needs to be changed.")
GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID,
scope: kGGLInstanceIDScopeGCM, options: registrationOptions, handler: registrationHandler)
}
// [END on_token_refresh]
// [START upstream_callbacks]
func willSendDataMessageWithID(messageID: String!, error: NSError!) {
if (error != nil) {
// Failed to send the message.
} else {
// Will send message, you can save the messageID to track the message
}
}
func didSendDataMessageWithID(messageID: String!) {
// Did successfully send message identified by messageID
}
// [END upstream_callbacks]
func didDeleteMessagesOnServer() {
// Some messages sent to this device were deleted on the GCM server before reception, likely
// because the TTL expired. The client should notify the app server of this, so that the app
// server can resend those messages.
}
}
我不知道问题出在哪里以及如何解决。
注意：消息进入ios设备，但未显示通知
我在调试屏幕中看到了它。
当我将'content_available：true'添加到c＃中的Http Post时，服务器返回“内部错误”
最佳答案
I changed this line and everything was OK.
字符串postData =“ {\” notification \“：{\” body \“：” + value +“，\”徽章\“：\” 1 \“，\”声音\“：\”默认\“}，\ “ to \”：\“” + regIds +“ \”，\“ content_available \”：true，\“ priority \”：\“ high \”}“;