iPhone开发之将16进制颜色转换成UIColor

iteye_264

于 2012-11-02 18:23:00 发布

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本文将指导您如何使用Objective-C语言开发iOS应用程序，从基础知识到实战案例，全面覆盖iOS开发流程。

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- (UIColor *)getColor:(NSString *)hexColor
{
	unsigned int red,green,blue;
	NSRange range;
	range.length = 2;
	
	range.location = 0;
	[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&red];
	
	range.location = 2;
	[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&green];
	
	range.location = 4;
	[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&blue];
	
	return [UIColor colorWithRed:(float)(red/255.0f) green:(float)(green / 255.0f) blue:(float)(blue / 255.0f) alpha:1.0f];
}

[self.view setBackgroundColor:[self getColor:@"FF0000"]];