iOS学习笔记22-推送通知

一、推送通知

二、本地推送通知

UILocalNotification

fireDate

[[UIApplication shareApplication] scheduleLocalNotification:notification];

fireDate

[[UIApplication shareApplication] presentLocalNotificationNow:notification];

-(void)application:(UIApplication *)application didReceiveLocalNotification;

-(BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions;
/* 通过参数launchOptions获取本地推送通知内容 */
UILocalNotification *local = launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];

UIApplication

/* 取消指定的本地推送通知 */
-(void)cancelLocalNotification:(UILocalNotification *)notification;
/* 取消全部本地推送通知 */
-(void)cancelAllLocalNotification;

- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//因为是storyboard启动，这里就没有其他启动代码了

//iOS8.0以后，如果需要使用推送通知，需要得到用户许可
if (application.currentUserNotificationSettings.types == UIUserNotificationTypeNone) {
//注册通知，有横幅通知、应用数字通知、应用声音通知
UIUserNotificationSettings * setting =
[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert |
UIUserNotificationTypeBadge |
UIUserNotificationTypeSound
categories:nil];
[application registerUserNotificationSettings:setting];
} else {
//当APP关闭后接收到通知，在启动中获取本地推送通知对象
UILocalNotification *notification = launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];
[self showLocalNotification:notification];
}
return YES;
}
/* 弹框UIAlertView显示本地通知的信息 */
- (void)showLocalNotification:(UILocalNotification *)notification
{
/* 显示本地通知 */
NSDictionary *userInfo = notification.userInfo;
NSString *title = @"本地通知";
NSString *msg = userInfo[@"msg"];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title
message:msg
delegate:nil
cancelButtonTitle:@"取消"
otherButtonTitles:@"确定", nil];
[alert show];
//移除本地通知
[[UIApplication sharedApplication] cancelLocalNotification:notification];
}

/* 创建一个本地通知 */
- (UILocalNotification *)makeLocalNotification{
//创建本地推送通知对象
UILocalNotification *notification = [[UILocalNotification alloc] init];
//设置调用时间
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:10.0];//通知触发的时间，10s以后
notification.repeatInterval = NSCalendarUnitMinute;//每隔多久重复发一次本地通知
//设置通知属性
notification.alertBody = @"最近添加了诸多有趣的特性，是否立即体验？";//通知主体
notification.applicationIconBadgeNumber = 1;//应用程序图标右上角显示的消息数
notification.alertAction = @"打开应用"; //待机界面的滑动动作提示
notification.alertLaunchImage = @"Default";//通过点击通知打开应用时的启动图片,这里使用程序启动图片
notification.soundName = UILocalNotificationDefaultSoundName;//收到通知时播放的声音，默认消息声音
//设置用户信息
notification.userInfo = @{ @"id":@1,
@"user":@"Kenshin Cui",
@"msg":@"我来了一发本地通知"};//绑定到通知上的其他附加信息
return notification;
}

fireDate

repeatInterval

NSDateFormatter *formatter1 = [[NSDateFormatter alloc]init];
[formatter setDateFormat:@"yyyy-MM-dd HH-mm-sss"];
NSDate *resDate = [formatter dateFromString:@"2016-04-09 12-00-00"];
notification.fireDate = resDate;//设定为明天中午12点触发通知
//记得设置当前时区，没有设置的话，fireDate将不考虑时区，这样的通知会不准确
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.repeatInterval = NSCalendarUnitDay;//每隔一天触发一次

/* 注册本地通知完成会调用，即用户点击确定授权后调用 */
- (void)application:(UIApplication *)application
didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
{
//在这里我们尝试发送本地推送通知
if (notificationSettings.types != UIUserNotificationTypeNone) {
UILocalNotification *notification = [self makeLocalNotification];
//延迟调用通知
[application scheduleLocalNotification:notification];
//立刻发送通知
//[application presentLocalNotificationNow:notification];
}
}
/* 应用还在运行，无论前台还是后台，都会调用该方法处理通知 */
- (void)application:(UIApplication *)application
didReceiveLocalNotification:(UILocalNotification *)notification
{
if( notification ) {
[self showLocalNotification:notification];
}
}
/* 应用进入前台，去除应用边角数字显示 */
- (void)applicationWillEnterForeground:(UIApplication *)application {
//去除应用边角数字
[application setApplicationIconBadgeNumber:0];
}

三、远程推送通知

device token

deviceToken

deviceToken

deviceToken

deviceToken

-(void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken;

deviceToken

deviceToken

-(void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo;

- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//iOS8.0以后，如果需要使用本地推送通知，需要得到用户许可
if (![application isRegisteredForRemoteNotifications]) {
UIUserNotificationSettings * setting =
[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert |
UIUserNotificationTypeBadge |
UIUserNotificationTypeSound
categories:nil];
[application registerUserNotificationSettings:setting];
//注册远程推送通知
[application registerForRemoteNotifications];
}
return YES;
}

/* 注册远程推送通知成功会调用 ，在此接收设备令牌deviceToken */
- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
{
[self addDeviceToken:deviceToken];
}
/* 保存deviceToken，并同步服务器上保存的deviceToken，以便能正确推送通知 */
- (void)addDeviceToken:(NSData *)deviceToken
{
NSString *key = @"DeviceToken";
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
//取出原来的deviceToken，进行比较
NSData *oldToken = [defaults objectForKey:key];
if ([oldToken isEqualToData:deviceToken]) {
//存入新的deviceToken
[defaults setObject:deviceToken forKey:key];
[defaults synchronize];
//发送网络请求到服务器，说明deviceToken发生了改变
[self sendDeviceTokenWithOldDeviceToken:oldToken newDeviceToken:deviceToken];
}
}
/* 发送网络请求到服务器，说明deviceToken发生了改变，服务器那边也要同步改变 */
- (void)sendDeviceTokenWithOldDeviceToken:(NSData *)oldToken newDeviceToken:(NSData *)newToken
{
//发送到服务器，下面是服务器的一个接口
NSString *urlStr = @"http://192.168.1.101/RegisterDeviceToken.aspx";
urlStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:urlStr];
//POST网络请求
NSMutableURLRequest *requestM = [NSMutableURLRequest requestWithURL:url];
requestM.HTTPMethod = @"POST";
//POST请求的请求体
NSString *bodyStr = [NSString stringWithFormat:@"oldToken=%@&newToken=%@",oldToken,newToken];
requestM.HTTPBody = [bodyStr dataUsingEncoding:NSUTF8StringEncoding];
//使用会话来发送网络请求
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask =
[session dataTaskWithRequest:requestM
completionHandler:^(NSData *data,NSURLResponse *response,NSError *error){
if(!error){
NSLog(@"Send Success !");
} else {
NSLog(@"Send Failure, error = %@",error.localizedDescription);
}
}];
//网络请求任务启动
[dataTask resume];
}

/* 收到远程推送通知时会调用 */
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSString *title = @"远程推送通知";
NSString *msg = userInfo[@"msg"];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title
message:msg
delegate:nil
cancelButtonTitle:@"取消"
otherButtonTitles:@"确定", nil];
[alert show];
}

四、第三方远程推送