嗨,我有以下:设置六角背景
- (void)viewDidLoad
{
[super viewDidLoad];
// SET BACKGROUND OF APPLICATION ON STARTUP
[self.view setBackgroundColor: [self colorWithHexString:@"88C800"]];
// Do any additional setup after loading the view, typically from a nib.
}
-(UIColor*)colorWithHexString:(NSString*)hex
{
NSString *cString = [[hex stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
// String should be 6 or 8 characters
if ([cString length] < 6) return [UIColor grayColor];
// strip 0X if it appears
if ([cString hasPrefix:@"0X"]) cString = [cString substringFromIndex:2];
if ([cString length] != 6) return [UIColor grayColor];
// Separate into r, g, b substrings
NSRange range;
range.location = 0;
range.length = 2;
NSString *rString = [cString substringWithRange:range];
range.location = 2;
NSString *gString = [cString substringWithRange:range];
range.location = 4;
NSString *bString = [cString substringWithRange:range];
// Scan values
unsigned int r, g, b;
[[NSScanner scannerWithString:rString] scanHexInt:&r];
[[NSScanner scannerWithString:gString] scanHexInt:&g];
[[NSScanner scannerWithString:bString] scanHexInt:&b];
return [UIColor colorWithRed:((float) r/255.0f)
green:((float) g/255.0f)
blue:((float) b/255.0f)
alpha:1.0f];
}
这将改变的背景颜色我view controller (root)
向我提供指定的十六进制颜色。我的问题是,在导航到另一个view controller
时,如何获得上述功能来实现我的所有view controllers
?此代码在我的ViewController.m
不确定我需要做什么,建议和想法?
该死的让我眼睛酸痛,你能编辑代码移位等吗? –