如何在ios中为文本框边框设置十六进制颜色答案

【问题标题】：how to set a hex color to textfield border in ios如何在ios中为文本框边框设置十六进制颜色
【发布时间】：2013-05-16 10:31:12
【问题描述】：

UIColor *bgcolour = [BackgroundLayer colorWithHexString:@"F13982"];
textField.layer.borderColor=[[UIColor colorWithCGColor:(__bridge CGColorRef)(bgcolour)] CGColor];

谁能说出如何将 UIColor 对象“bgcolor”设置为 Textfield 边框？

【问题讨论】：

也将您的问题标记为目标 c

标签： iphone ios uitextfield border-color

【解决方案1】：

textField.layer.borderColor= bgcolour.CGColor;

【讨论】：

【解决方案2】：

首先你可以使用这个函数得到UIColor和Hex字符串

 + (UIColor *)colorFromHexString:(NSString *)hexString {
        unsigned rgbValue = 0;
        NSScanner *scanner = [NSScanner scannerWithString:hexString];
        [scanner setScanLocation:1]; // bypass '#' character
        [scanner scanHexInt:&rgbValue];
        return [UIColor colorWithRed:((rgbValue & 0xFF0000) >> 16)/255.0 green:((rgbValue & 0xFF00) >> 8)/255.0 blue:(rgbValue & 0xFF)/255.0 alpha:1.0];
    }

要改变边框颜色试试这个

 UITextField *theTextFiels=[[UITextField alloc]initWithFrame:CGRectMake(40, 40, 150, 30)];
        theTextFiels.borderStyle=UITextBorderStyleNone;
        theTextFiels.layer.cornerRadius=8.0f;
        theTextFiels.layer.masksToBounds=YES;
            theTextFiels.backgroundColor=[UIColor redColor];
        theTextFiels.layer.borderColor=[[UIColor blackColor]CGColor];
        theTextFiels.layer.borderWidth= 1.0f;

        [self.view addSubview:theTextFiels];
        [theTextFiels release];

【讨论】：

【解决方案3】：

您遵循以下步骤：

将十六进制值转换为 RGB 使用 HexToRGB。
textfield.layer.borderColor=[UIColor colorWithRed:244/255.00f green:133/255.00f blue:116/255.00f alpha:1.0f];

【讨论】：

[UIColor ].CGColor 用于图层颜色

【解决方案4】：

UIColor+HexColor.h

//
//  UIColor+HexColor.h
//

#import <Foundation/Foundation.h>

@interface UIColor (HexColor)

//(int) color = RGBA hexadecimal - 8 hexadecimal digits, specifying 8 bits each of red, green, and blue, followed by 8 bits of alpha
//@usage: UIColor *myColor = [UIColor colorWithHex:0xEEEEEEff];
+ (UIColor* ) colorWithHex:(int)color;
@end

UIColor+HexColor.m:

//
//  UIColor+HexColor.m
//

#import "UIColor+HexColor.h"

@implementation UIColor (HexColor)

+ (UIColor* ) colorWithHex:(int)color
{

    float red = (color & 0xff000000) >> 24;
    float green = (color & 0x00ff0000) >> 16;
    float blue = (color & 0x0000ff00) >> 8;
    float alpha = (color & 0x000000ff);

    return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha/255.0];
}
@end

@用法 1 (#F13982)：

textField.layer.borderColor = [UIColor colorWithHex:0xF13982ff];

@usage 2 (#eeeeee)：

 UIColor *myColor = [UIColor colorWithHex:0xEEEEEEff];

【讨论】：