iOS: 环信的推送

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 += ;
}