本文介绍了UITabBarItem图像颜色为灰色,而原始图像为白色的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用以下代码为我的 UITabBarItem创建图像
I use the following code to create image for my UITabBarItem
self.tabBarItem.image = [UIImage imageNamed:@"tab_img.png"];
此tab_img.png由黑色,白色和清晰的颜色组成。但在应用程序中,黑白图像的所有部分都变为灰色。如何将此灰色更改为白色?
This tab_img.png consists of black, white and clear color. But in app all part of image that is black and white turns to grey. How I can change this grey to white ?
推荐答案
在iOS7中,如果您使用IB,您可以继承UITabBarController,然后添加:
In iOS7, if you use IB you can subclass UITabBarController then add this:
+ (void)initialize
{
//the color for the text for unselected tabs
[UITabBarItem.appearance setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor redColor]} forState:UIControlStateNormal];
//the color for selected icon
[[UITabBar appearance] setSelectedImageTintColor:[UIColor whiteColor]];
}
- (void)viewDidLoad
{
[super viewDidLoad];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
for (UITabBarItem *tbi in self.tabBar.items) {
tbi.image = [tbi.image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
}
}
}
如果您手动创建项目你必须在每个图标上设置UIImageRenderingModeAlwaysOriginal并添加初始化的代码。
if you create the items manualy you must set the UIImageRenderingModeAlwaysOriginal on each icon and add the code from initialize.
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