如何在iOS中更改导航控制器的工具栏颜色？

Question

我正在尝试更改导航栏的颜色.以下rgb是深红色,但我的导航栏在以下代码后变为白色.

navigationController.navigationBar.tintColor = [UIColor colorWithRed:117 green:4 blue:32 alpha:1];

Answer 1

这是因为CGFloat值的范围0.0 to 1.0不是来自0 to 255,而上面1.0的值被解释为1.0.

这是文档:UIColor

Answer 2

这样做:

navigationController.navigationBar.tintColor = [UIColor colorWithRed:117/255.0f green:4/255.0f blue:32/255.0f alpha:1];

Answer 3

您必须将每个值除以255.尝试:

[UIColor colorWithRed:117/255.0f green:4/255.0f blue:32/255.0f alpha:1]