如何将自定义分隔符图像添加到UITabBar？

Question

我有一个UITabBar,我试图在新的iOS 6 App Store外观后设计.我有一些非常漂亮的渐变,但我想知道如何设置分频器图像.

除了手动将线条添加到每个图像之外,我还能做些什么来重现分割器外观吗？

Answer 1

您可以为每个项目添加图像，用于选定和未选定的状态。像这样：

    UIImage *selectedImage0     = [UIImage imageNamed:@"image1.png"];
    UIImage *unselectedImage0   = [UIImage imageNamed:@"image1_unselected.png"];

    UIImage *selectedImage1     = [UIImage imageNamed:@"image2.png"];
    UIImage *unselectedImage1   = [UIImage imageNamed:@"image2_unselected.png"];

    UIImage *selectedImage2     = [UIImage imageNamed:@"image3.png"];
    UIImage *unselectedImage2   = [UIImage imageNamed:@"image3_unselected.png"];

    UIImage *selectedImage3     = [UIImage imageNamed:@"image4.png"];
    UIImage *unselectedImage3   = [UIImage imageNamed:@"image4_unselected.png"];

    UIImage *selectedImage4     = [UIImage imageNamed:@"image5.png"];
    UIImage *unselectedImage4   = [UIImage imageNamed:@"image5_unselected.png"];

    UITabBar     *tabBar = self.tabBarController.tabBar;
    UITabBarItem *item0  = [tabBar.items objectAtIndex:0];
    UITabBarItem *item1  = [tabBar.items objectAtIndex:1];
    UITabBarItem *item2  = [tabBar.items objectAtIndex:2];
    UITabBarItem *item3  = [tabBar.items objectAtIndex:3];
    UITabBarItem *item4  = [tabBar.items objectAtIndex:4];

    [item0 setFinishedSelectedImage:selectedImage0 withFinishedUnselectedImage:unselectedImage0];
    [item1 setFinishedSelectedImage:selectedImage1 withFinishedUnselectedImage:unselectedImage1];
    [item2 setFinishedSelectedImage:selectedImage2 withFinishedUnselectedImage:unselectedImage2];
    [item3 setFinishedSelectedImage:selectedImage3 withFinishedUnselectedImage:unselectedImage3];
    [item4 setFinishedSelectedImage:selectedImage4 withFinishedUnselectedImage:unselectedImage4];

您可以将此代码放置在viewDidLoad任何控制器的方法中。希望这可以帮助。

干杯!