iOS 7中的UITabBar色调 [英] UITabBar tint in iOS 7

问题描述

如果选择和取消选中标签，我如何指定图像的色调？

How can i specify the tint of images when a tab is selected and unselected?

我试过这个但它不起作用：

I have tried this but it doesnt work:

[[UITabBar appearance] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];

这使得所选图像色调为红色（不是绿色）和未选择的色调灰色（不是红色）。 / p>

This makes the selected image tint red(not green) and unselected tint gray (not red).

推荐答案

您可以为选定和未选择的标签栏按钮设置色调颜色，如下所示：

You can set the tint color for selected and unselected tab bar buttons like this:

[[UIView appearanceWhenContainedIn:[UITabBar class], nil] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];

第一行设置未选择的颜色 - 在本例中为红色 - 通过设置UIView的tintColor来设置它在标签栏中。请注意，这仅设置未选择图像的色调颜色 - 它不会更改其下方文本的颜色。

The first line sets the unselected color - red in this example - by setting the UIView's tintColor when it's contained in a tab bar. Note that this only sets the unselected image's tint color - it doesn't change the color of the text below it.

第二行设置标签栏的所选图像色调颜色绿色。

The second line sets the tab bar's selected image tint color to green.

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