ios如何实现推送通知
推送通知的步骤:1、询问是否允许推送通知。2、如果用户允许在APPDELEGATE 中实现
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken{
}
3、将token发送到服务器上
4、服务器收到toke后 发送推送通知,客户端相应该推送同通知
代码如下:
- //每次唤醒
- - (void)applicationDidBecomeActive:(UIApplication *)application
- {
- /*
- Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
- */
- //每次醒来都需要去判断是否得到device token
- [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(registerForRemoteNotificationToGetToken) userInfo:nil repeats:NO];
- //hide the badge
- application.applicationIconBadgeNumber = 0;
- [[CheckVersion sharedCVInstance] checkVersionOfServer];
- [[AnalyticsUtil sharedAnalyticsUtil] appLaunch];
- AnalyticsJSONElement *viewElement = [[AnalyticsJSONElement alloc] init];
- viewElement.jsonType = AnalyticsJSONTypeView;
- viewElement.typeID = @"0";
- [[AnalyticsUtil sharedAnalyticsUtil] postAnalyticsMsgToServerWithElement:viewElement];
- [viewElement release];
- }
- - (void)applicationWillTerminate:(UIApplication *)application
- {
- /*
- Called when the application is about to terminate.
- Save data if appropriate.
- See also applicationDidEnterBackground:.
- */
- }
- #pragma mark -
- #pragma mark - Getting Device token for Notification support
- //向服务器申请发送token 判断事前有没有发送过
- - (void)registerForRemoteNotificationToGetToken
- {
- NSLog(@"Registering for push notifications...");
- //注册Device Token, 需要注册remote notification
- NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
- if (![userDefaults boolForKey:DeviceTokenRegisteredKEY]) //如果没有注册到令牌 则重新发送注册请求
- {
- dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
- [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
- (UIRemoteNotificationTypeNewsstandContentAvailability |
- UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge |
- UIRemoteNotificationTypeSound)];
- });
- }
- //将远程通知的数量置零
- dispatch_async(dispatch_get_global_queue(0,0), ^{
- //1 hide the local badge
- if ([[UIApplication sharedApplication] applicationIconBadgeNumber] == 0) {
- return;
- }
- // [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
- //2 ask the provider to set the BadgeNumber to zero
- NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
- NSString *deviceTokenStr = [userDefaults objectForKey:DeviceTokenStringKEY];
- [self resetBadgeNumberOnProviderWithDeviceToken:deviceTokenStr];
- });
- }
- //允许的话 自动回调的函数
- - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
- {
- //将device token转换为字符串
- NSString *deviceTokenStr = [NSString stringWithFormat:@"%@",deviceToken];
- //modify the token, remove the "<, >"
- NSLog(@" deviceTokenStr lentgh: %d ->%@", [deviceTokenStr length], [[deviceTokenStr substringWithRange:NSMakeRange(0, 72)] substringWithRange:NSMakeRange(1, 71)]);
- deviceTokenStr = [[deviceTokenStr substringWithRange:NSMakeRange(0, 72)] substringWithRange:NSMakeRange(1, 71)];
- NSLog(@"deviceTokenStr = %@",deviceTokenStr);
- //将deviceToken保存在NSUserDefaults
- NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
- //保存 device token 令牌,并且去掉空格
- [userDefaults setObject:[deviceTokenStr stringByReplacingOccurrencesOfString:@" " withString:@""] forKey:DeviceTokenStringKEY];
- //send deviceToken to the service provider
- dispatch_async(dispatch_get_global_queue(0,0), ^{
- //没有在service provider注册Device Token, 需要发送令牌到服务器
- if ( ![userDefaults boolForKey:DeviceTokenRegisteredKEY] )
- {
- NSLog(@" 没有 注册Device Token");
- [self sendProviderDeviceToken:deviceTokenStr];
- }
- });
- }
- - (void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err {
- NSString *str = [NSString stringWithFormat: @"Error: %@", err];
- NSLog(@"获取令牌失败: %@",str);
- //如果device token获取失败则需要重新获取一次
- //[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(registerForRemoteNotificationToGetToken) userInfo:nil repeats:NO];
- }
- //获取远程通知
- - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
- NSLog(@"received badge number ---%@ ----",[[userInfo objectForKey:@"aps"] objectForKey:@"badge"]);
- for (id key in userInfo) {
- NSLog(@"key: %@, value: %@", key, [userInfo objectForKey:key]);
- }
- NSLog(@"the badge number is %d", [[UIApplication sharedApplication] applicationIconBadgeNumber]);
- NSLog(@"the application badge number is %d", application.applicationIconBadgeNumber);
- application.applicationIconBadgeNumber += 1;
- // We can determine whether an application is launched as a result of the user tapping the action
- // button or whether the notification was delivered to the already-running application by examining
- // the application state.
- //当用户打开程序时候收到远程通知后执行
- if (application.applicationState == UIApplicationStateActive) {
- // Nothing to do if applicationState is Inactive, the iOS already displayed an alert view.
- UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"温馨提示"
- message:[NSString stringWithFormat:@"\n%@",
- [[userInfo objectForKey:@"aps"] objectForKey:@"alert"]]
- delegate:self
- cancelButtonTitle:@"OK"
- otherButtonTitles:nil];
- dispatch_async(dispatch_get_global_queue(0,0), ^{
- //hide the badge
- application.applicationIconBadgeNumber = 0;
- //ask the provider to set the BadgeNumber to zero
- NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
- NSString *deviceTokenStr = [userDefaults objectForKey:DeviceTokenStringKEY];
- [self resetBadgeNumberOnProviderWithDeviceToken:deviceTokenStr];
- });
- [alertView show];
- [alertView release];
- }
- }
- // http://192.168.11.24/ClientInterface.ashx?action= savetoken&clientid=3898329492492424924932&token=343424324242
- #pragma mark -
- #pragma mark - Getting Device token for Notification support
- //发送token
- - (void)sendProviderDeviceToken: (NSString *)deviceTokenString
- {
- // Establish the request
- NSLog(@"sendProviderDeviceToken = %@", deviceTokenString);
- NSString *UDIDString = [[UIDevice currentDevice] uniqueIdentifier];
- NSString *body = [NSString stringWithFormat:@"action=savetoken&clientid=%@&token=%@", UDIDString, deviceTokenString];
- NSString *baseurl = [NSString stringWithFormat:@"%@?",URL_OF_PUSH_NOTIFICATION_SERVER]; //服务器地址
- NSLog(@"send provider device token = %@", baseurl);
- NSURL *url = [NSURL URLWithString:baseurl];
- NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
- [urlRequest setHTTPMethod: @"POST"];
- [urlRequest setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
- [urlRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
- NSURLConnection *tConnection = [[NSURLConnection alloc] initWithRequest: urlRequest delegate: self];
- self.deviceTokenConnetion = [tConnection retain];
- [tConnection release];
- }
- #pragma mark -
- #pragma mark - reset Badge Number
- - (void)resetBadgeNumberOnProviderWithDeviceToken: (NSString *)deviceTokenString
- {
- NSLog(@" reset Provider DeviceToken %@", deviceTokenString);
- isNotificationSetBadge = YES;
- // Establish the request
- NSString *body = [NSString stringWithFormat:@"action=setbadge&token=%@", [deviceTokenString stringByReplacingOccurrencesOfString:@" " withString:@""]];
- NSString *baseurl = [NSString stringWithFormat:@"%@?", URL_OF_PUSH_NOTIFICATION_SERVER]; //服务器地址
- NSURL *url = [NSURL URLWithString:baseurl];
- NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
- [urlRequest setHTTPMethod: @"POST"];
- [urlRequest setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
- [urlRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
- NSURLConnection *tConnection = [[NSURLConnection alloc] initWithRequest: urlRequest delegate: self];
- self.deviceTokenConnetion = [tConnection retain];
- [tConnection release];
- }
- #pragma mark -
- #pragma mark - NSURLConnection delegate function
- - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
- {
- NSHTTPURLResponse *resp = (NSHTTPURLResponse *)response;
- NSLog(@"Response statusCode: %d", resp.statusCode);
- }
- - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
- {
- NSString *rsp = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
- NSLog(@"connection 2 Received data = %@ ", rsp);
- //if the string from provider is "true", means the devicetoken is stored in the provider server
- //so the app won‘t send the devicetoken next time.
- if (isNotificationSetBadge == NO) {
- NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
- if([rsp isEqualToString:@"true"])
- {
- NSLog(@"connection 2.2 Received data = %@ ", rsp);
- [userDefaults setBool:YES forKey:DeviceTokenRegisteredKEY];
- }
- }else{//isNotificationSetBadge == YES;
- NSLog(@"connection 2 reset");
- isNotificationSetBadge = NO;
- }
- [rsp release];
- }
- - (void)connectionDidFinishLoading:(NSURLConnection *)connection
- {
- NSLog(@"connection 3 Did Finish Loading ");
- [self.deviceTokenConnetion cancel];
- }
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