按钮文本颜色的更改不反映

Question

我面临一个奇怪的问题.当我的按钮突出显示时,我正在更改按钮的文本颜色,但在视觉上根本没有任何变化.

[myButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[myButton setTitleColor:[UIColor colorWithRed:150.0 green:150.0 blue:150.0 alpha:1.0] forState:UIControlStateHighlighted];

我错过了什么吗？

Answer 1

尝试:

[myButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[myButton setTitleColor:[UIColor colorWithRed:150.0/256.0 green:150.0/256.0 blue:150.0/256.0 alpha:1.0] forState:UIControlStateHighlighted];

颜色组件的浮动介于0.0和1.0之间!