获取手机机身颜色

- (void)viewDidLoad {
    [super viewDidLoad];

    UIDevice *device = [UIDevice currentDevice];
    SEL selector = NSSelectorFromString(@"deviceInfoForKey:");
    if (![device respondsToSelector:selector]) {
        selector = NSSelectorFromString(@"_deviceInfoForKey:");
    }
    if ([device respondsToSelector:selector]) {
        NSLog(@"DeviceColor: %@ DeviceEnclosureColor: %@", [device performSelector:selector withObject:@"DeviceColor"], [device performSelector:selector withObject:@"DeviceEnclosureColor"]);
        UIColor *color = [self colorWithHexString:[device performSelector:selector withObject:@"DeviceEnclosureColor"]];
        self.view.backgroundColor = color;
    }
}

{
    NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
    
    if ([cString length] <6) {
        
        return [UIColor clearColor];
        
    }
    
    // strip 0X if it appears
    
    if ([cString hasPrefix:@"0X"])
        
        cString = [cString substringFromIndex:2];
    
    if ([cString hasPrefix:@"#"])
        
        cString = [cString substringFromIndex:1];
    
    if ([cString length] !=6)
        return [UIColor clearColor];
    
    // 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];
    
    
    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];
}