ios - 如何使标签栏图标图像变小？

Question

我想让标签栏图标图片看起来有点小。我使用了 30*30 大小的图片和 60*60 的图片。但它仍然对我不起作用。请指导我如何获得正确的图片解决方案。

以下是我的代码

//set the custom images for selected & unselected image for tab bar
    UITabBarItem *homeTab = [self.exposeTabBar.items objectAtIndex:0];
    UIImage *home_unselectedImage = [UIImage imageNamed:@"home.png"];
    UIImage *home_selectedImage = [UIImage imageNamed:@"home.png"];
    [homeTab setImage: [home_unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [homeTab setSelectedImage: home_selectedImage];

    UITabBarItem *bookmarkTab = [self.exposeTabBar.items objectAtIndex:1];
    UIImage *bookmark_unselectedImage_ = [UIImage imageNamed:@"bookmark.png"];
    UIImage *bookmark_selectedImage = [UIImage imageNamed:@"bookmark.png"];
    [bookmarkTab setImage: [bookmark_unselectedImage_ imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [bookmarkTab setSelectedImage: bookmark_selectedImage];

    UITabBarItem *postTab = [self.exposeTabBar.items objectAtIndex:2];
    UIImage *post_unselectedImage_ = [UIImage imageNamed:@"create-post.png"];
    UIImage *post_selectedImage = [UIImage imageNamed:@"create-post_white.png"];
    [postTab setImage: [post_unselectedImage_ imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [postTab setSelectedImage: post_selectedImage];

    UITabBarItem *notificationTab = [self.exposeTabBar.items objectAtIndex:3];
    UIImage *notification_unselectedImage_ = [UIImage imageNamed:@"notifications.png"];
    UIImage *notification_selectedImage = [UIImage imageNamed:@"notifications_white.png"];
    [notificationTab setImage: [notification_unselectedImage_ imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [notificationTab setSelectedImage: notification_selectedImage];

    UITabBarItem *profileTab = [self.exposeTabBar.items objectAtIndex:4];
    UIImage *profile_unselectedImage_ = [UIImage imageNamed:@"more.png"];
    UIImage *profile_selectedImage = [UIImage imageNamed:@"more_white.png"];
    [profileTab setImage: [profile_unselectedImage_ imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [profileTab setSelectedImage: profile_selectedImage];

    self.exposeTabBar.tintColor = [UIColor whiteColor];
    self.exposeTabBar.selectedImageTintColor=[UIColor whiteColor];


    [[UITabBarItem appearance] setTitleTextAttributes:@{ NSForegroundColorAttributeName : [UIColor blackColor] }
                                             forState:UIControlStateNormal];
    [[UITabBarItem appearance] setTitleTextAttributes:@{ NSForegroundColorAttributeName : [UIColor whiteColor] }
                                             forState:UIControlStateSelected];

Answer 1

使用以下类似的代码来设置 UITabBar 的图像。

UITabBarItem *i0 = [self.tabBar.tabBar.items objectAtIndex:0];
[i0 setImage:[UIImage imageNamed:@"home"]];

它正在处理我的情况。