关于自定消息所对应的UI比较复杂的情况 about nim-uikit-ios HOT 5 CLOSED

#pragma mark - super method
- (void)refresh:(NIMMessageModel *)data {
    [super refresh:data];
    SelfAttachment *attachment = (SelfAttachment *)[data.sessionLayout customAttachment:[SelfAttachment class]];
    if (attachment) {
        self.titleLabel.text = attachment.title;
        self.descLabel.text = attachment.desc;
        if (!self.thumbImageView.image) {
            [self.thumbImageView sd_setImageWithURL:[NSURL URLWithString:attachment.img] placeholderImage:nil options:0];
        }
    }
}

#pragma mark - layout
- (void)layoutSubviews {
    [super layoutSubviews];
    
    SessionLayout *sessionLayout = (SessionLayout *)self.model.sessionLayout;
    
    if (!sessionLayout) {
        return;
    }
    
    self.thumbImageView.hidden = CGRectIsEmpty(sessionLayout.imageViewPack.frame);
    self.thumbImageView.frame = sessionLayout.imageViewPack.frame;
    
    self.titleLabel.frame = sessionLayout.titleLabelPack.frame;
    self.titleLabel.textColor = sessionLayout.titleLabelPack.textColor;
    self.titleLabel.font = sessionLayout.titleLabelPack.textFont;

    self.descLabel.hidden = CGRectIsEmpty(sessionLayout.descLabelPack.frame);
    self.descLabel.frame = sessionLayout.descLabelPack.frame;
    self.descLabel.textColor = sessionLayout.descLabelPack.textColor;
    self.descLabel.font = sessionLayout.descLabelPack.textFont;
}

@interface ViewAttributePack : NSObject
@property (nonatomic, assign) CGRect frame;
@property (nonatomic, strong) UIFont *textFont;
@property (nonatomic, strong) UIColor *textColor;
@end