原文：http://m.blog.csdn.net/article/details?id=38824551

1.先创建一个apns证书，链接如下

　　http://developer.easemob.com/docs/emchat/ios/push/certificate.html

　　创建完证书后，将证书弄成p12文件，然后上传到环信后台

2.再创建真机调试证书，和描述文件，保证能进行真机调试。并且appid要又推送功能

3.绑定环信证书和appkey

//注册 APNS文件的名字, 需要与后台上传证书时的名字一一对应

NSString *apnsCertName = @"chatdemo";

[[EaseMob sharedInstance] registerSDKWithAppKey:@“” apnsCertName:apnsCertName];

[[EaseMob sharedInstance] enableBackgroundReceiveMessage];

[[EaseMob sharedInstance] application:application didFinishLaunchingWithOptions:launchOptions];
4.然后实现环信的几个方法
// 收到消息回调

-(void)didReceiveMessage:(EMMessage *)message{

#if !TARGET_IPHONE_SIMULATOR

    [self playSoundAndVibration];

    BOOL isAppActivity = [[UIApplication sharedApplication] applicationState] == UIApplicationStateActive;

    if (!isAppActivity) {

        [self showNotificationWithMessage:message];

    }

#endif

}

- (void)playSoundAndVibration{

    //如果距离上次响铃和震动时间太短, 则跳过响铃

    NSLog(@"%@, %@", [NSDate date], self.lastPlaySoundDate);

    NSTimeInterval timeInterval = [[NSDate date]

                                   timeIntervalSinceDate:self.lastPlaySoundDate];

    if (timeInterval < kDefaultPlaySoundInterval) {

        return;

    }

    //保存最后一次响铃时间

    self.lastPlaySoundDate = [NSDate date];

    // 收到消息时，播放音频

    [[EaseMob sharedInstance].deviceManager asyncPlayNewMessageSound];

    // 收到消息时，震动

    [[EaseMob sharedInstance].deviceManager asyncPlayVibration];

}

- (void)showNotificationWithMessage:(EMMessage *)message{

    id<IEMMessageBody> messageBody = [message.messageBodies firstObject];

    NSString *messageStr = nil;

    switch (messageBody.messageBodyType) {

        case eMessageBodyType_Text:

        {

            messageStr = ((EMTextMessageBody *)messageBody).text;

        }

            break;

        case eMessageBodyType_Image:

        {

            messageStr = @"[图片]";

        }

            break;

        case eMessageBodyType_Location:

        {

            messageStr = @"[位置]";

        }

            break;

        case eMessageBodyType_Voice:

        {

            messageStr = @"[音频]";

        }

            break;

        case eMessageBodyType_Video:{

            messageStr = @"[视频]";

        }

            break;

        default:

            break;

    }

    //发送本地推送

    UILocalNotification *notification = [[UILocalNotification alloc] init];

    notification.fireDate = [NSDate date]; //触发通知的时间

    NSString *title = message.from;

    if (message.isGroup) {

        NSArray *groupArray = [[EaseMob sharedInstance].chatManager groupList];

        for (EMGroup *group in groupArray) {

            if ([group.groupId isEqualToString:message.conversation.chatter]) {

                title = [NSString stringWithFormat:@"%@(%@)", message.groupSenderName, group.groupSubject];

                break;

            }

        }

    }

    notification.alertBody = [NSString stringWithFormat:@"%@:%@", title, messageStr];

    notification.alertAction = @"打开";

    notification.timeZone = [NSTimeZone defaultTimeZone];

    notification.soundName = UILocalNotificationDefaultSoundName;

    //发送通知

    [[UIApplication sharedApplication] scheduleLocalNotification:notification];

    UIApplication *application = [UIApplication sharedApplication];

    application.applicationIconBadgeNumber += ;

}
这样就可以进行消息推送了

经过自己的研究，个人拓展一下：一般接收消息推送通知放在主控制器去操作，只需要在主控制器注册代理，即可回调，发送通知

//**************************************************远程通知部分*******************************************************//

//两次提示的默认间隔

#import "MainViewController.h"

static const CGFloat kDefaultPlaySoundInterval = 3.0;

static NSString *kMessageType = @"MessageType";

static NSString *kConversationChatter = @"ConversationChatter";



@interface MainViewController ()<EMChatManagerChatDelegate>


@property (strong, nonatomic) NSDate *lastPlaySoundDate;


@end


#pragma - 远程通知部分


- (BOOL)needShowNotification:(NSString *)fromChatter

{

    BOOL ret = YES;

    NSArray *igGroupIds = [[EaseMob sharedInstance].chatManager ignoredGroupIds];

    for (NSString *str in igGroupIds) {

        if ([str isEqualToString:fromChatter]) {

            ret = NO;

            break;

        }

    }

    return ret;

}

// 收到消息回调

-(void)didReceiveMessage:(EMMessage *)message

{

    BOOL needShowNotification = (message.messageType != eMessageTypeChat) ? [self needShowNotification:message.conversationChatter] : YES;

    if (needShowNotification) {

#if !TARGET_IPHONE_SIMULATOR

        UIApplicationState state = [[UIApplication sharedApplication] applicationState];

        switch (state) {

            case UIApplicationStateActive:

                [self playSoundAndVibration];

                break;

            case UIApplicationStateInactive:

                [self playSoundAndVibration];

                break;

            case UIApplicationStateBackground:

                [self showNotificationWithMessage:message];

                break;

            default:

                break;

        }

#endif

    }

}


//透传消息

-(void)didReceiveCmdMessage:(EMMessage *)message

{

    [self showHint:NSLocalizedString(@"receiveCmd", @"receive cmd message")];

}

- (void)playSoundAndVibration{

    NSTimeInterval timeInterval = [[NSDate date]

                                   timeIntervalSinceDate:self.lastPlaySoundDate];

    if (timeInterval < kDefaultPlaySoundInterval) {

        //如果距离上次响铃和震动时间太短, 则跳过响铃

        NSLog(@"skip ringing & vibration %@, %@", [NSDate date], self.lastPlaySoundDate);

        return;

    }

    //保存最后一次响铃时间

    self.lastPlaySoundDate = [NSDate date];

    // 收到消息时，播放音频

    [[EMCDDeviceManager sharedInstance] playNewMessageSound];

    // 收到消息时，震动

    [[EMCDDeviceManager sharedInstance] playVibration];

}

- (void)showNotificationWithMessage:(EMMessage *)message

{

    EMPushNotificationOptions *options = [[EaseMob sharedInstance].chatManager pushNotificationOptions];

    //发送本地推送

    UILocalNotification *notification = [[UILocalNotification alloc] init];

    notification.fireDate = [NSDate date]; //触发通知的时间

    if (options.displayStyle == ePushNotificationDisplayStyle_messageSummary) {

        id<IEMMessageBody> messageBody = [message.messageBodies firstObject];

        NSString *messageStr = nil;

        switch (messageBody.messageBodyType) {

            case eMessageBodyType_Text:

            {

                messageStr = ((EMTextMessageBody *)messageBody).text;

            }

                break;

            case eMessageBodyType_Image:

            {

                messageStr = NSLocalizedString(@"message.image", @"Image");

            }

                break;

            case eMessageBodyType_Location:

            {

                messageStr = NSLocalizedString(@"message.location", @"Location");

            }

                break;

            case eMessageBodyType_Voice:

            {

                messageStr = NSLocalizedString(@"message.voice", @"Voice");

            }

                break;

            case eMessageBodyType_Video:{

                messageStr = NSLocalizedString(@"message.video", @"Video");

            }

                break;

            default:

                break;

        }

//      NSString *title = [[UserProfileManager sharedInstance] getNickNameWithUsername:message.from];

        NSString *title = message.from;

        if (message.messageType == eMessageTypeGroupChat) {

//            NSArray *groupArray = [[EaseMob sharedInstance].chatManager groupList];

//            for (EMGroup *group in groupArray) {

//                if ([group.groupId isEqualToString:message.conversationChatter]) {

//                    title = [NSString stringWithFormat:@"%@(%@)", message.groupSenderName, group.groupSubject];

//                    break;

//                }

//            }

        }

        else if (message.messageType == eMessageTypeChatRoom)

        {

//            NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];

//            NSString *key = [NSString stringWithFormat:@"OnceJoinedChatrooms_%@", [[[EaseMob sharedInstance].chatManager loginInfo] objectForKey:@"username" ]];

//            NSMutableDictionary *chatrooms = [NSMutableDictionary dictionaryWithDictionary:[ud objectForKey:key]];

//            NSString *chatroomName = [chatrooms objectForKey:message.conversationChatter];

//            if (chatroomName)

//            {

//                title = [NSString stringWithFormat:@"%@(%@)", message.groupSenderName, chatroomName];

//            }

        }

        notification.alertBody = [NSString stringWithFormat:@"%@:%@", title, messageStr];

    }

    else{

        notification.alertBody = NSLocalizedString(@"receiveMessage", @"you have a new message");

    }

#warning 去掉注释会显示[本地]开头, 方便在开发中区分是否为本地推送

//    notification.alertBody = [[NSString alloc] initWithFormat:@"[本地]%@", notification.alertBody];

    notification.alertAction = NSLocalizedString(@"open", @"Open");

    notification.timeZone = [NSTimeZone defaultTimeZone];

    NSTimeInterval timeInterval = [[NSDate date] timeIntervalSinceDate:self.lastPlaySoundDate];

    if (timeInterval < kDefaultPlaySoundInterval) {

        NSLog(@"skip ringing & vibration %@, %@", [NSDate date], self.lastPlaySoundDate);

    } else {

        notification.soundName = UILocalNotificationDefaultSoundName;

        self.lastPlaySoundDate = [NSDate date];

    }

    NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];

    [userInfo setObject:[NSNumber numberWithInt:message.messageType] forKey:kMessageType];

    [userInfo setObject:message.conversationChatter forKey:kConversationChatter];

    notification.userInfo = userInfo;

    //发送通知

    [[UIApplication sharedApplication] scheduleLocalNotification:notification];

    UIApplication *application = [UIApplication sharedApplication];

    application.applicationIconBadgeNumber += ;

}


												


																

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