通过颜色来生成一个纯色图片

通过颜色来生成一个纯色图片

本篇文章主要介绍了"通过颜色来生成一个纯色图片"，主要涉及到纯色图片方面的内容，对于IOS开发感兴趣的同学可以参考一下： 效果图：代码：- (void)viewDidLoad{[super viewDidLoad]; // Do any additional setup afte... 

效果图：

代码：

- (void)viewDidLoad
{
    [super viewDidLoad]; // Do any additional setup after loading the view.  UIImageView *imageView=[[UIImageView alloc]initWithFrame:CGRectMake(50, 100, 200, 200)];
    imageView.backgroundColor=[UIColor yellowColor];
    imageView.image=[self buttonImageFromColor:[UIColor redColor]];
    [self.view addSubview:imageView];
    
    
    
} //通过颜色来生成一个纯色图片 - (UIImage *)buttonImageFromColor:(UIColor *)color{
    
    CGRect rect = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
    UIGraphicsBeginImageContext(rect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextSetFillColorWithColor(context, [color CGColor]);
    CGContextFillRect(context, rect);
    UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext(); return img;
}

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