自定义警告框（可以添加警告图片）

//写一个警告框的方法
- (void)warningWithTitle:(NSString *)title image:(NSString *)imageName storyString:(NSString *)story buttonName:(NSString *)buttonName{
    
    bigView = [[UIView alloc] initWithFrame:self.view.bounds];
    bigView.backgroundColor = [UIColor colorWithRed:0.0/255.0 green:0.0/255.0 blue:0.0/255.0 alpha:0.5];
    [self.view addSubview:bigView];
    
    //警告框
    UIView * view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 250, 150)];
    view.backgroundColor = [UIColor colorWithRed:250/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:1];
    view.center = self.view.center;
    view.layer.cornerRadius = 8;
    view.layer.masksToBounds = YES;
    
    
    //标题
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 250, 30)];
    titleLabel.font = [UIFont boldSystemFontOfSize:20];
    titleLabel.textColor = [UIColor blackColor];
    titleLabel.textAlignment = NSTextAlignmentCenter;
    titleLabel.text = title;
    [view addSubview:titleLabel];
    
    //添加图片
    UIImageView *image = [[UIImageView alloc] initWithFrame:CGRectMake(100, 35, 50, 50)];
    image.image = [UIImage imageNamed:imageName];
    [view addSubview:image];
    
    //警告信息
    UILabel *secondLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 90, 150, 20)];
    secondLabel.text = story;
    secondLabel.font = [UIFont boldSystemFontOfSize:16];
    secondLabel.textAlignment = NSTextAlignmentCenter;
    [view addSubview:secondLabel];
    
    
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(100, 115, 55, 28);
    button.backgroundColor = [UIColor redColor];
    [button addTarget:self action:@selector(hiddonButton) forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:buttonName forState:UIControlStateNormal];
    [view addSubview:button];
    [bigView addSubview:view];
    
}

- (void)hiddonButton{
    bigView.hidden = YES;
}