我正在使用各种颜色的iPhone应用程序。当用户选择特定颜色按钮时，我设置绘图颜色。我得到一些颜色，但在大多数情况下，我得到白色。
这里是我的代码：
- -(IBAction)colorSelected:(UIButton *)sender
- {
- switch (sender.tag)
- {
- case 1:
- self.drawcolor= [UIColor colorWithRed:200 green:191 blue:231 alpha:1];
- break;
- case 2:
- self.drawcolor= [UIColor colorWithRed:163 green:73 blue:164 alpha:1];
- break;
- case 3:
- self.drawcolor= [UIColor colorWithRed:112 green:146 blue:76 alpha:1];
- break;
- case 4:
- self.drawcolor= [UIColor colorWithRed:63 green:72 blue:204 alpha:1];
- break;
- case 5:
- self.drawcolor= [UIColor colorWithRed:153 green:217 blue:234 alpha:1];
- break;
- case 6:
- self.drawcolor= [UIColor colorWithRed:0 green:162 blue:232 alpha:1];
- break;
- case 7:
- self.drawcolor= [UIColor colorWithRed:181 green:230 blue:29 alpha:1];
- break;
- case 8:
- self.drawcolor= [UIColor colorWithRed:34 green:177 blue:76 alpha:1];
- break;
- case 9:
- self.drawcolor= [UIColor colorWithRed:239 green:228 blue:176 alpha:1];
- break;
- case 10:
- self.drawcolor= [UIColor colorWithRed:255 green:201 blue:0 alpha:1];
- break;
- case 11:
- self.drawcolor= [UIColor colorWithRed:255 green:201 blue:14 alpha:1];
- break;
- case 12:
- self.drawcolor= [UIColor colorWithRed:237 green:28 blue:36 alpha:1];
- break;
- case 13:
- self.drawcolor= [UIColor colorWithRed:255 green:127 blue:39 alpha:1];
- break;
- case 14:
- self.drawcolor= [UIColor colorWithRed:255 green:174 blue:201 alpha:1];
- break;
- case 15:
- self.drawcolor= [UIColor colorWithRed:185 green:122 blue:87 alpha:1];
- break;
- case 16:
- self.drawcolor= [UIColor colorWithRed:136 green:0 blue:21 alpha:1];
- break;
- case 17:
- self.drawcolor= [UIColor colorWithRed:195 green:195 blue:195 alpha:1];
- break;
- case 18:
- self.drawcolor= [UIColor colorWithRed:127 green:127 blue:127 alpha:1];
- break;
- case 19:
- self.drawcolor= [UIColor colorWithRed:255 green:255 blue:255 alpha:1];
- break;
- case 20:
- self.drawcolor= [UIColor colorWithRed:0 green:0 blue:0 alpha:1];
- break;
- default:
- break;
- }
- self.preColor=self.drawcolor;
- self.lineWidth=self.prelineWidth;
- }
任何人都可以告诉我我做错了什么？
Sumit
解决方法
这些值在0.0到1.0的范围内。
例如。除以255，但记住小数点，所以你得到浮点除法而不是整数除法。
喜欢
- selectedColor = [UIColor colorWithRed:14.0/255.0 green:114.0/255.0 blue:199.0/255.0 alpha:1];
