最近需要使用到提示框（警告框）进行信息的展示和提醒，所以进行了一个类的封装，想用Swift调用此OC文件，但是发现有些困难，所以暂时先把OC代码进行展示，随后再好好研究一下在Swift中的使用。

对于封装文件，首先要设计界面，其次是数据之间的传递过程

初始化样式方法：

- (instancetype)initWithTitle:(NSString *)title icon:(UIImage *)icon message:(NSString *)message delegate:(id<BHAlertViewDelegate>)delegate buttonTitles:(NSString *)buttonTitles, ... {
    if (self = [super initWithFrame:[UIScreen mainScreen].bounds]) {
        _icon = icon;
        _title = title;
        _message = message;
        _delegate = delegate;
        _buttonArray = [NSMutableArray array];
        _buttonTitleArray = [NSMutableArray array];
        
        //在C中，当我们无法列出传递函数的所有实参的类型和数目时,可以用省略号指定参数表，下面就是为了实现方法中"..."的效果
        va_list args;
        va_start(args, buttonTitles);
        if (buttonTitles)
        {
            [_buttonTitleArray addObject:buttonTitles];
            while (1)
            {
                NSString *  otherButtonTitle = va_arg(args, NSString *);
                if(otherButtonTitle == nil) {
                    break;
                } else {
                    [_buttonTitleArray addObject:otherButtonTitle];
                }
            }
        }
        va_end(args);
        
        self.backgroundColor = [UIColor clearColor];
        
        _backgroundView = [[UIView alloc] initWithFrame:self.frame];
        _backgroundView.backgroundColor = [UIColor blackColor];
        [self addSubview:_backgroundView];
        [self initContentView];
    }
    return self;
}

获取标题、信息的大小

//----------获取各控件Size大小
- (CGSize)getTitleSize {
    UIFont *font = [UIFont systemFontOfSize:TITLE_FONT_SIZE];
    
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
    NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
    
    CGSize size = [_title boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_SMALL + MARGIN_RIGHT_SMALL + _iconImageView.frame.size.width + SPACE_SMALL), 2000) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
    
    size.width = ceil(size.width);
    size.height = ceil(size.height);
    
    return size;
}
- (CGSize)getMessageSize {
    UIFont *font = [UIFont systemFontOfSize:MESSAGE_FONT_SIZE];
    
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineSpacing = MESSAGE_LINE_SPACE;
    NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
    
    CGSize size = [_message boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_LARGE + MARGIN_RIGHT_LARGE), 2000) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
    
    size.width = ceil(size.width);
    size.height = ceil(size.height);
    
    return size;
}

设置代理方法

//----------按钮点击执行代理方法
- (void)buttonWithPressed:(UIButton *)button {
    if (_delegate && [_delegate respondsToSelector:@selector(alertView:clickedButtonAtIndex:)]) {
        NSInteger index = [_buttonTitleArray indexOfObject:button.titleLabel.text];
        [_delegate alertView:self clickedButtonAtIndex:index];
    }
    [self hide];
}

然后添加一些设置字体大小颜色，显示，隐藏的方法

最后是对封装类的使用

BHAlertView *bhAlertV = [[BHAlertView alloc] initWithTitle:@"设置按钮字体的颜色和大小" icon:[UIImage imageNamed:@"baby_alert_icon"] message:@"设置按钮字体的颜色和大小设置按钮字体的颜色和大小" delegate:self buttonTitles:@"取消",@"修改",@"删除", nil];
            //设置标题和内容的字体颜色、大小
            [bhAlertV setTitleColor:[UIColor redColor] fontSize:17];
            [bhAlertV setMessageColor:[UIColor cyanColor] fontSize:12];
            //设置按钮字体的颜色和大小
            [bhAlertV setButtonTitleColor:[UIColor orangeColor] fontSize:15 atIndex:0];
            [bhAlertV setButtonTitleColor:[UIColor blueColor] fontSize:17 atIndex:1];
            [bhAlertV setButtonTitleColor:[UIColor purpleColor] fontSize:19 atIndex:2];
            
            [bhAlertV show];

效果图：

           

           

源码下载：http://download.csdn.net/detail/hbblzjy/9658209

如有问题，请留言。。。