ios如何实现推送通知

浏览数：28 / 时间：2015年06月11日

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：

[cpp] view plain copy

//每次唤醒

[cpp] view plain copy

- (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

[cpp] view plain copy

//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];
}