Ios UITabBar项目无法选择

我有单独的图标用于未选择和已选择（白色）。第一个和“事件”选项卡栏项在选中时不会更改图像，但其他项会更改图像。如果有人能帮忙，那就太好了。我什么都试过了

self.firstViewController = [[FirstRandomViewController alloc] init];
self.firstTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.firstTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.firstViewController.tabBarItem.image = [self.firstTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.thirdViewController.tabBarItem.selectedImage = [self.firstTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.photoViewerViewController = [[PhotoViewerViewController alloc] init];
self.eventsTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.eventsTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.photoViewerViewController.tabBarItem.image = [self.eventsTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.photoViewerViewController.tabBarItem.selectedImage = [self.eventsTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.secondViewController = [[SecondRandomViewController alloc] init];
self.secondTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.secondTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.secondViewController.tabBarItem.image = [self.secondTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.thirdViewController.tabBarItem.selectedImage = [self.secondTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.thirdViewController = [[ThirdRandomViewController alloc] init];
self.thirdTabBarImageSelected = [UIImage imageNamed:@"Assets/arc_white.png"];
self.thirdTabBarImageUnSelected = [UIImage imageNamed:@"Assets/arc.png"];
self.thirdViewController.tabBarItem.image = [self.thirdTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.thirdViewController.tabBarItem.selectedImage = [self.thirdTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.fourthViewController = [[FourthRandomViewController alloc] init];
self.fourthTabBarImageSelected = [UIImage imageNamed:@"Assets/add_white.png"];
self.fourthTabBarImageUnSelected = [UIImage imageNamed:@"Assets/add.png"];
self.fourthViewController.tabBarItem.image = [self.fourthTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.fourthViewController.tabBarItem.selectedImage = [self.fourthTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

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您在分配SelecteImage时犯了愚蠢的错误

self.firstViewController = [[FirstRandomViewController alloc] init];
self.firstTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.firstTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.firstViewController.tabBarItem.image = [self.firstTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//self.thirdViewController.tabBarItem.selectedImage = [self.firstTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
 self.firstViewController.tabBarItem.selectedImage = [self.firstTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.photoViewerViewController = [[PhotoViewerViewController alloc] init];
self.eventsTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.eventsTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.photoViewerViewController.tabBarItem.image = [self.eventsTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.photoViewerViewController.tabBarItem.selectedImage = [self.eventsTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.secondViewController = [[SecondRandomViewController alloc] init];
self.secondTabBarImageSelected = [UIImage imageNamed:@"Assets/photos_white.png"];
self.secondTabBarImageUnSelected = [UIImage imageNamed:@"Assets/photos.png"];
self.secondViewController.tabBarItem.image = [self.secondTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//self.thirdViewController.tabBarItem.selectedImage = [self.secondTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.secondViewController.tabBarItem.selectedImage = [self.secondTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.thirdViewController = [[ThirdRandomViewController alloc] init];
self.thirdTabBarImageSelected = [UIImage imageNamed:@"Assets/arc_white.png"];
self.thirdTabBarImageUnSelected = [UIImage imageNamed:@"Assets/arc.png"];
self.thirdViewController.tabBarItem.image = [self.thirdTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.thirdViewController.tabBarItem.selectedImage = [self.thirdTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.fourthViewController = [[FourthRandomViewController alloc] init];
self.fourthTabBarImageSelected = [UIImage imageNamed:@"Assets/add_white.png"];
self.fourthTabBarImageUnSelected = [UIImage imageNamed:@"Assets/add.png"];
self.fourthViewController.tabBarItem.image = [self.fourthTabBarImageUnSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.fourthViewController.tabBarItem.selectedImage = [self.fourthTabBarImageSelected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

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天啊。我该睡觉了。非常感谢。@NSS我评论了这个错误。