yinmeng-ios/xplan-ios/Main/Room/View/MessageContainerView/Tool/XPRoomMessageParser.m

//
//  XPRoomMessageParser.m
//  xplan-ios
//
//  Created by 冯硕 on 2021/10/26.
//

#import "XPRoomMessageParser.h"
#import <YYText/YYText.h>
#import <NIMSDK/NIMSDK.h>
///Tool
#import "ThemeColor+Room.h"
#import "XPRoomMessageConstant.h"
#import "AccountInfoStorage.h"
#import "XPMacro.h"
#import "XPGiftStorage.h"
///Model
#import "XPMessageRemoteExtModel.h"
#import "AttachMentModel.h"
#import "GiftReceiveInfoModel.h"
#import "XPKickUserModel.h"
#import "MicroQueueModel.h"
#import "UserInfoModel.h"
#import "MicroStateModel.h"

#import "NetImageView.h"

#import "XPUserCardViewController.h"


@implementation XPRoomMessageParser

- (NSAttributedString*)parseMessageAttribute:(NIMMessage *)message {
    NIMMessageType messageType = message.messageType;
    switch (messageType) {
        case NIMMessageTypeText:
            return [self makeChatAttribute:message];
            
        case NIMMessageTypeTip:
            return [self makeTipsAttribute:message];
            
        case NIMMessageTypeNotification:
            return [self makeNotificationAttribute:message];
			
		case NIMMessageTypeCustom:
			return [self makeCustomAttribute:message];
        default:
            return nil;
    }
}

/// 用户公屏聊天
- (NSAttributedString *)makeCustomAttribute:(NIMMessage *)message {
	NIMCustomObject *obj = (NIMCustomObject *)message.messageObject;
	AttachmentModel *attachment = (AttachmentModel *)obj.attachment;
	XPMessageRemoteExtModel * model = [XPMessageRemoteExtModel modelWithJSON:message.remoteExt[message.from]];
	int first = attachment.first;
	if (first == CustomMessageType_Gift) {///单人送
		return [self createSendGiftAttribute:attachment sendInfo:model];
	} else if(first == CustomMessageType_AllMicroSend) {///全麦送 多人送
		return 	[self createBatchMicroSendGiftAttribute:attachment sendInfo:model];
	} else if(first == CustomMessageType_Room_Tip) {///分享/收藏房间
		return [self createShareOrAttentionRoomAttribute:attachment sendInfo:model uid:message.from];
	} else if(first == CustomMessageType_Kick_User || first == CustomMessageType_Queue) {
		XPKickUserModel * kickModel = [XPKickUserModel modelWithJSON:attachment.data];
		return [self createKickUserAttribute:attachment info:kickModel];
	} else if(first == CustomMessageType_Candy_Tree  ) {//糖果树
		return [self createCandyTreeHighLevelAttribute:attachment];
	}
	return nil;
}

/// @param message 消息的实体
- (NSAttributedString*)makeChatAttribute:(NIMMessage *)message{
    NSString * uid = [AccountInfoStorage instance].getUid;
    XPMessageRemoteExtModel * model = [XPMessageRemoteExtModel modelWithJSON:message.remoteExt[message.from]];
    NSString * nick = [NSString stringWithFormat:@"%@:", ((NIMMessageChatroomExtension *)message.messageExt).roomNickname];
    if ([message.from isEqualToString:uid]) {
        nick = @"我:";
    }
    NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	///官方新用户
	[attribute appendAttributedString:[self createOfficalAndNewuserAttribute:model.defUser newUser:model.newUser]];
    if (model.experUrl) {
		[attribute appendAttributedString:[self createUrlImageAttribute:model.experUrl]];
        [attribute appendAttributedString:[self createSapceAttribute:2]];
    }
	[attribute appendAttributedString:[self createTextAttribute:nick color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
    [attribute appendAttributedString:[self createSapceAttribute:2]];
	[attribute appendAttributedString:[self createTextAttribute:message.text color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
	[self attributeAddHihtLight:attribute uid:message.from.integerValue];
    return attribute;
}

/// 房间tips消息
/// @param message 消息的实体
- (NSAttributedString*)makeTipsAttribute:(NIMMessage *)message {
    return [self createTextAttribute:message.text color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont];
}

/// 房间通知类消息
/// @param message 消息的实体
- (NSAttributedString*)makeNotificationAttribute:(NIMMessage *)message {
    NIMNotificationObject *notiMsg = (NIMNotificationObject *)message.messageObject;
    NIMChatroomNotificationContent *content = (NIMChatroomNotificationContent *)notiMsg.content;
    NIMChatroomNotificationMember *member = content.targets[0];
    switch (content.eventType) {
        case NIMChatroomEventTypeEnter:///进入房间
        {
            NSString* nick = member.nick.length > 0 ? member.nick : @"";
            NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
			[attribute appendAttributedString:[self createTextAttribute:nick color:[ThemeColor messageNickColor] font:kRoomMessageDefalutFont]];
			[attribute appendAttributedString:[self createTextAttribute:@"进入了房间" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			[self attributeAddHihtLight:attribute uid:message.from.integerValue];
            return attribute;
        }
        case NIMChatroomEventTypeInfoUpdated:///房间信息更新
            return [self createRoomInfoUpdateAttribute:content.notifyExt];
            
        default:
            return nil;
    }
}

#pragma mark - 房间信息更新
///房间信息更新
- (NSAttributedString*)createRoomInfoUpdateAttribute:(NSString *)notifyExt {
    return nil;
}

#pragma mark - 糖果树公屏消息
- (NSAttributedString *)createCandyTreeHighLevelAttribute:(AttachmentModel *)attachment {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
		//action
		[attribute appendAttributedString:[self createTextAttribute:@"厉害了 " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
	NSInteger uid = 0;
	if ([attachment.data[@"uid"] isKindOfClass:[NSNumber class]]) {
		uid = ((NSNumber *)attachment.data[@"uid"]).integerValue;
	} else if ([attachment.data[@"uid"] isKindOfClass:[NSString class]]) {
		uid = ((NSString *)attachment.data[@"uid"]).integerValue;
	}
	[attribute appendAttributedString:[self createNickAtrribute:attachment.data[@"nick"] uid:uid]];
		[attribute appendAttributedString:[self createTextAttribute:@"摘下糖果获得" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
	[attribute appendAttributedString:[self createTextAttribute:attachment.data[@"prizeName"] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
	[attribute appendAttributedString:[self createTextAttribute:[NSString stringWithFormat:@" x %@", attachment.data[@"prizeNum"]] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
	return attribute;
}
#pragma mark - 踢出房间/拉黑/下麦
- (NSAttributedString *)createKickUserAttribute:(AttachmentModel *)attachment info:(XPKickUserModel *)info {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	[attribute appendAttributedString:[self createNickAtrribute:info.targetNick uid:info.targetUid]];
	[attribute appendAttributedString:[self createTextAttribute:@"被" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
	[attribute appendAttributedString:[self createNickAtrribute:info.handleNick uid:info.handleUid]];
	NSString * content= @"";
	if (attachment.second == Custom_Message_Sub_Kick_BeKicked) {
		content = @"请出房间";
	} else if(attachment.second == Custom_Message_Sub_Kick_BlackList) {
		content = @"关进小黑屋";
	} else if(attachment.second == Custom_Message_Sub_Queue_Kick) {
		content = @"请下麦";
	}
	[attribute appendAttributedString:[self createTextAttribute:content color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
	return attribute;
}


#pragma mark - 收藏房间和分享房间
- (NSAttributedString *)createShareOrAttentionRoomAttribute:(AttachmentModel *)attachment sendInfo:(XPMessageRemoteExtModel *)sendInfo uid:(NSString *)uid {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	NSDictionary *data = attachment.data[@"data"];
	NSString *nick = [NSString stringWithFormat:@"%@",data[@"nick"]];
	[attribute appendAttributedString:[self createTextAttribute:nick color:[ThemeColor messageNickColor] font:kRoomMessageDefalutFont]];
	NSString *tipString = @"";
	if (attachment.second == Custom_Message_Sub_Room_Tip_ShareRoom) {
		tipString = @"分享了房间";
	}else if (attachment.second == Custom_Message_Sub_Room_Tip_Attention_Owner) {
		tipString = @"关注了房主";
	}
	[attribute appendAttributedString:[self createTextAttribute:tipString color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
	[self attributeAddHihtLight:attribute uid:uid.integerValue];
	return attribute;
}

#pragma mark - 送礼物的公屏
- (NSAttributedString *)createBatchMicroSendGiftAttribute:(AttachmentModel *)attachment sendInfo:(XPMessageRemoteExtModel *)sendInfo {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	GiftReceiveInfoModel *info = [GiftReceiveInfoModel modelWithJSON:attachment.data];
	GiftInfoModel *giftInfo = info.gift == nil ? info.giftInfo : info.gift;
	if (giftInfo == nil) {
		giftInfo = [[XPGiftStorage shareStorage] findGiftInfo:info.giftId];
	}
	///官方新用户
	[attribute appendAttributedString:[self createOfficalAndNewuserAttribute:sendInfo.defUser newUser:sendInfo.newUser]];
	//nick
	[attribute appendAttributedString:[self createNickAtrribute:info.nick uid:info.uid.integerValue]];
	[attribute appendAttributedString:[self createSapceAttribute:2]];
	if (attachment.second == Custom_Message_Sub_AllBatchSend || attachment.second == Custom_Message_Sub_AllMicroSend) {///普通礼物
		if (attachment.second == Custom_Message_Sub_AllBatchSend) {
			//打赏
			[attribute appendAttributedString:[self createTextAttribute:@"  打赏  " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
			for (int i = 0; i < info.targetUsers.count; i++) {
				GiftReceiveUserInfoModel *targetInfo = [info.targetUsers objectAtIndex:i];
				//nick
				[attribute appendAttributedString:[self createNickAtrribute:targetInfo.nick uid:targetInfo.uid]];
				[attribute appendAttributedString:[self createSapceAttribute:2]];
				if (i < (info.targetUsers.count -1)) {
					//nick
					[attribute appendAttributedString:[self createTextAttribute:@"," color:[ThemeColor messageNickColor] font:kRoomMessageDefalutFont]];
					[attribute appendAttributedString:[self createSapceAttribute:2]];
				}
			}
		} else {
			//打赏
			[attribute appendAttributedString:[self createTextAttribute:@"  全麦打赏  " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
		}
		
		//img
		if (giftInfo.giftUrl) {
			[attribute appendAttributedString:[self createUrlImageAttribute:giftInfo.giftUrl]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
		}
	
		//x N
		[attribute appendAttributedString:[self createTextAttribute:[NSString stringWithFormat:@" X%ld",info.giftNum] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
	} else if(attachment.second == Custom_Message_Sub_AllMicroLuckySend || attachment.second == Custom_Message_Sub_AllBatchMicroLuckySend) {///福袋礼物
		//action
		NSString * sendTitle = @"  送出  ";
		if (attachment.second == Custom_Message_Sub_AllMicroLuckySend) {
			sendTitle = @"  全麦送出  ";
		}
		//打赏
		[attribute appendAttributedString:[self createTextAttribute:sendTitle color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		
		// 福袋名称
		[attribute appendAttributedString:[self createTextAttribute:info.giftName color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		
		// 福袋名称
		[attribute appendAttributedString:[self createTextAttribute:@" 给 " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		if (info.luckyGiftList) {
			//target
			[attribute appendAttributedString:[self createNickAtrribute:info.luckyGiftList.user.nick uid:info.luckyGiftList.user.uid]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];

			// 福袋名称
			[attribute appendAttributedString:[self createTextAttribute:@" 爆出了 " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
			
			[info.luckyGiftList.giftList enumerateObjectsUsingBlock:^(GiftListsInfo * _Nonnull giftListInfo, NSUInteger idx, BOOL * _Nonnull stop) {
				GiftInfoModel *luckGiftInfo = [[XPGiftStorage shareStorage] findGiftInfo:[NSString stringWithFormat:@"%ld", giftListInfo.giftId]];
				// 价值
				[attribute appendAttributedString:[self createTextAttribute:@"价值" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
				[attribute appendAttributedString:[self createSapceAttribute:2]];
				// 礼物价格
				[attribute appendAttributedString:[self createTextAttribute:[NSString stringWithFormat:@"%ld",(NSInteger)luckGiftInfo.goldPrice] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
				// 的礼物
				[attribute appendAttributedString:[self createTextAttribute:@"钻石的礼物" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
				//img
				[attribute appendAttributedString:[self createUrlImageAttribute:luckGiftInfo.giftUrl]];
				[attribute appendAttributedString:[self createSapceAttribute:2]];
			
				//x N
				[attribute appendAttributedString:[self createTextAttribute:	[NSString stringWithFormat:@" X%ld",giftListInfo.giftNum] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
				if (info.luckyGiftList.giftList.count-1 != idx) {
					//,
					[attribute appendAttributedString:[self createTextAttribute:@"," color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
				}
			}];
		}
	}
	return attribute;
}

- (NSAttributedString *)createSendGiftAttribute:(AttachmentModel *)attachment sendInfo:(XPMessageRemoteExtModel *)sendInfo  {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	GiftReceiveInfoModel *info = [GiftReceiveInfoModel modelWithJSON:attachment.data];
	GiftInfoModel *giftInfo = info.gift == nil ? info.giftInfo : info.gift;
	if (giftInfo == nil) {
		giftInfo = [[XPGiftStorage shareStorage] findGiftInfo:info.giftId];
	}
	///官方新用户
	[attribute appendAttributedString:[self createOfficalAndNewuserAttribute:sendInfo.defUser newUser:sendInfo.newUser]];
	//nick
	[attribute appendAttributedString:[self createNickAtrribute:info.nick uid:info.uid.integerValue]];
	[attribute appendAttributedString:[self createSapceAttribute:2]];;
	if (attachment.second == Custom_Message_Sub_Gift_LuckySend) {
		//action
		[attribute appendAttributedString:[self createTextAttribute:@"送出" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		// 福袋名称
		[attribute appendAttributedString:[self createTextAttribute:info.giftName color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
		
		[attribute appendAttributedString:[self createTextAttribute:@"给" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		//target
		[attribute appendAttributedString:[self createNickAtrribute:info.luckyGiftList.user.nick uid:info.luckyGiftList.user.uid]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		//lucky
		[attribute appendAttributedString:[self createTextAttribute:@"爆出了" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		[info.luckyGiftList.giftList enumerateObjectsUsingBlock:^(GiftListsInfo * _Nonnull giftListInfo, NSUInteger idx, BOOL * _Nonnull stop) {
			GiftInfoModel *luckyGiftInfo = [[XPGiftStorage shareStorage] findGiftInfo:[NSString stringWithFormat:@"%ld", giftListInfo.giftId]];
			// 价值
			[attribute appendAttributedString: [self createTextAttribute:@"价值" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
			// 礼物价格
			[attribute appendAttributedString:[self createTextAttribute:[NSString stringWithFormat:@"%ld",(NSInteger)giftInfo.goldPrice] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
			// 的礼物
			[attribute appendAttributedString: [self createTextAttribute:@"钻石的礼物" color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			//img
			[attribute appendAttributedString:[self createUrlImageAttribute:luckyGiftInfo.giftUrl]];
			[attribute appendAttributedString:[self createSapceAttribute:2]];
			//x N
			[attribute appendAttributedString:[self createTextAttribute:	[NSString stringWithFormat:@" X%ld",giftListInfo.giftNum] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
			if (info.luckyGiftList.giftList.count-1 != idx) {
				//,
				[attribute appendAttributedString: [self createTextAttribute:@"," color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
			}
		}];
	} else {
		//打赏
		[attribute appendAttributedString:[self createTextAttribute:@"  打赏  " color:[ThemeColor messageDefaultTextColor] font:kRoomMessageDefalutFont]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		//target
		[attribute appendAttributedString: [self createNickAtrribute:info.targetNick uid:info.targetUid.integerValue]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		//img
		[attribute appendAttributedString:[self createUrlImageAttribute:giftInfo.giftUrl]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
		//x N
		[attribute appendAttributedString:[self createTextAttribute:[NSString stringWithFormat:@" X%ld",info.giftNum] color:[ThemeColor messageTextColor] font:kRoomMessageDefalutFont]];
	}
	return attribute;
}

#pragma mark - Commond Mehotd
- (NSAttributedString *)createOfficalAndNewuserAttribute:(UserLevelType)levelType newUser:(BOOL)newUser {
	NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
	//offical
	if (levelType == UserLevelType_Offical) {
		[attribute appendAttributedString: [self createLocalImageAttribute:@"common_offical"]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
	}
	if (newUser) {
		[attribute appendAttributedString: [self createLocalImageAttribute:@"common_new_user"]];
		[attribute appendAttributedString:[self createSapceAttribute:2]];
	}
	return attribute;
}

///名字点击的
- (NSMutableAttributedString *)createNickAtrribute:(NSString *)nick uid:(NSInteger)uid {
	NSMutableAttributedString * attribute = [self createTextAttribute:nick color:[ThemeColor messageNickColor] font:kRoomMessageDefalutFont];
	[self attributeAddHihtLight:attribute uid:uid];
	return attribute;
}

- (void)attributeAddHihtLight:(NSMutableAttributedString *)attribute uid:(NSInteger)uid {
	@kWeakify(self);
	[attribute yy_setTextHighlightRange:NSMakeRange(0, attribute.length) color:nil backgroundColor:nil tapAction:^(UIView * _Nonnull containerView, NSAttributedString * _Nonnull text, NSRange range, CGRect rect) {
		@kStrongify(self);
		if (uid <= 0) {return;}
		[self showUserCard:uid];
	}];
}

- (void)showUserCard:(NSInteger)uid {
	NSString * targetUid = [NSString stringWithFormat:@"%ld", uid];
	XPUserCardInfoModel * model = [[XPUserCardInfoModel alloc] init];
	[[self.hostDelegate.getMicroQueue allValues] enumerateObjectsUsingBlock:^(MicroQueueModel * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
		if (uid == obj.userInfo.uid) {
			model.position = [NSString stringWithFormat:@"%d", obj.microState.position];
			model.posState = (UserCardMicroPosStateType)obj.microState.posState;
			model.micState = (UserCardMicroMicStateType)obj.microState.micState;
			*stop = YES;
		}
	}];
	model.uid = targetUid;
	XPUserCardViewController * userCardVC = [[XPUserCardViewController alloc] initWithUser:model delegate:self.hostDelegate];
	[self.hostDelegate.getCurrentNav presentViewController:userCardVC animated:YES completion:nil];
}

#pragma mark - private base methods
/// 生成一个图片的富文本
/// @param imageUrl 网络图片的地址
- (NSMutableAttributedString *)createUrlImageAttribute:(NSString *)imageUrl {
    NetImageConfig *config = [[NetImageConfig alloc]init];
	///先这样吧 
    config.autoLoad = YES;
	NetImageView *imageView = [[NetImageView alloc]initWithUrl:imageUrl config:config];
	UIImage* image = imageView.image;
	if (image) {
		CGFloat scale = image.size.width / image.size.height;
		imageView.bounds = CGRectMake(0, 0, 20 * scale, 20);
	} else {
		imageView.bounds = CGRectMake(0, 0, 20, 20);
	}
	imageView.layer.masksToBounds = YES;
	imageView.contentMode = UIViewContentModeScaleAspectFit;
	NSMutableAttributedString * attrString = [NSMutableAttributedString yy_attachmentStringWithContent:imageView contentMode:UIViewContentModeScaleAspectFit attachmentSize:CGSizeMake(imageView.bounds.size.width, imageView.bounds.size.height) alignToFont:[UIFont systemFontOfSize:15.0] alignment:YYTextVerticalAlignmentCenter];
	return attrString;
}


/// 生成本地一个图片的富文本
/// @param imageName 网络图片的地址
- (NSMutableAttributedString *)createLocalImageAttribute:(NSString *)imageName {
	if (imageName == nil && imageName.length <= 0) {
		return nil;
	}
    return [self createImageAttribute:[UIImage imageNamed:imageName]];
}

/// 生成本地一个图片的富文本
/// @param image  本地的图片
- (NSMutableAttributedString *)createImageAttribute:(UIImage *)image {
    UIImageView *imaveView = [[UIImageView alloc]init];
    imaveView.image = image;
    CGFloat scale = (CGFloat)imaveView.image.size.width / (CGFloat)imaveView.image.size.height;
    imaveView.bounds = CGRectMake(0, 0, 16 * scale, 16);
    NSMutableAttributedString * attrString = [NSMutableAttributedString yy_attachmentStringWithContent:imaveView contentMode:UIViewContentModeScaleAspectFit attachmentSize:CGSizeMake(imaveView.frame.size.width, imaveView.frame.size.height) alignToFont:[UIFont systemFontOfSize:15.0] alignment:YYTextVerticalAlignmentCenter];
    return attrString;
}

/// 生成一个富文本
/// @param text  富文本的文字
/// @param color 文字的颜色
/// @param font 文字的大小
- (NSMutableAttributedString *)createTextAttribute:(NSString *)text color:(UIColor *)color font:(CGFloat)font {
	if (text == nil || text.length <= 0) {
		text = @"";
	}
    NSMutableAttributedString *attribute = [[NSMutableAttributedString alloc] initWithString:text attributes:nil];
    attribute.yy_font = [UIFont systemFontOfSize:font];
    attribute.yy_color = color;
    attribute.yy_paragraphStyle = [self paragraphStyle];
    return attribute;
}

/// 设置文本的样式 间隙 缩进 ...
- (NSMutableParagraphStyle *)paragraphStyle {
    NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];
    paraStyle.lineSpacing = 4.0f;//行间距
    // 强制排版(从左到右)
    paraStyle.alignment = NSTextAlignmentLeft;
    paraStyle.baseWritingDirection = NSWritingDirectionLeftToRight;
    return paraStyle;
}

/// 占位的富文本
/// @param width 需要的间隙
- (NSMutableAttributedString *)createSapceAttribute:(CGFloat)width {
    UIView *spaceView = [[UIView alloc]init];
    spaceView.backgroundColor = [UIColor clearColor];
    spaceView.bounds = CGRectMake(0, 0, width, 10);
    NSMutableAttributedString * attribute = [NSMutableAttributedString yy_attachmentStringWithContent:spaceView contentMode:UIViewContentModeScaleAspectFit attachmentSize:CGSizeMake(spaceView.frame.size.width, spaceView.frame.size.height) alignToFont:[UIFont systemFontOfSize:15.0] alignment:YYTextVerticalAlignmentCenter];
    return attribute;
}

@end