[Q-A]使用方法询问：适配深色模式时，动态改变颜色和图片失效

[jieshaoli]

请教大神，如何对TabBar深色模式的适配。

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My issue:

[WHaveFun]

请问解决了吗？ @jieshaoli

[hardyZhi]

同样有这个问题，请问怎么解决？

[lifeMiik]

颜色可以改变，但是图片目前是改不了，一直都是 light 模式下的图片

[lifeMiik]

试试如下代码

- (void)traitCollectionDidChange:(UITraitCollection *)previousTraitCollection
{
   [super traitCollectionDidChange:previousTraitCollection];
   
   if (@available(iOS 13.0, *)){
       
       NSArray *navcs = self.viewControllers;
       if (previousTraitCollection.userInterfaceStyle == UIUserInterfaceStyleDark) {
           
           UIImage *selectImage = [[UIImage imageNamed:@"icon_line_sel_w"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
           
           for (int i = 0; i < navcs.count; i++) {
               UINavigationController *navi = navcs[i];
               navi.tabBarItem.selectedImage = selectImage;
           }
           
       } else {
           NSArray *navcs = self.viewControllers;
           
           UIImage *selectImage = [[UIImage imageNamed:@"icon_line_sel"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
           
           if (previousTraitCollection.userInterfaceStyle == UIUserInterfaceStyleLight) {
               
               for (int i = 0; i < navcs.count; i++) {
                   UINavigationController *navi = navcs[i];
                   navi.tabBarItem.selectedImage = selectImage;
                   
               }
           }
           
       }
   }
}