IOS开发 UITabBarController

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1,本文仅描述我在学习和使用UITabBarController过程的笔记和遇到的问题


2,正文

例子是按这篇文章搭建起来的@http://www.cnblogs.com/wendingding/p/3775488.html


3,问题

在实际需求当中,产品需要定制每个tab的 图片、文字都有选selected和normal状态,


1》系统默认的图片和文本是blue,即使给定的图片为别的颜色

(详细原因这篇文章有介绍@http://blog.csdn.net/kevinwlc/article/details/21467499)

2》tab上图片和文字的距离也需要定制

(具体实现这篇文章有介绍@http://www.cocoachina.com/bbs/read.php?tid=214060)


4,具体代码(一下所有代码都在AppDelegate.m中添加)


    self.window = [[UIWindowalloc] initWithFrame:[[UIScreenmainScreen] bounds]];

    self.window.backgroundColor = [UIColorwhiteColor];

    [self.windowmakeKeyAndVisible];


    //tab容器

    UITabBarController *tbc = [[UITabBarControlleralloc] init];

    self.window.rootViewController = tbc;


    UIViewController *vc1 = [[UIViewControlleralloc] init];

    vc1.view.backgroundColor = [UIColorwhiteColor];

    vc1.tabBarItem.title =@"缘分";

    

    //选中和未选中的图片变化

    if ([[UIDevicecurrentDevice].systemVersionfloatValue] >= 7.0) {

        vc1.tabBarItem.image = [[UIImageimageNamed:@"tab_luck_normal.png"]                  imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];


        vc1.tabBarItem.selectedImage = [[UIImageimageNamed:@"tab_luck_selected.png"]         imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

    }else {

       //参考@http://blog.csdn.net/kevinwlc/article/details/21467499

    }


    //图片和文字的距离控制

   UIOffset offset = UIOffsetMake(0, -5);

    

    [vc1.tabBarItemsetTitlePositionAdjustment:offset];


    //选中和未选中的图片变化

    if ([[UIDevicecurrentDevice].systemVersionfloatValue] >= 7.0) {

        vc2.tabBarItem.image = [[UIImageimageNamed:@"tab_search_normal.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

        vc2.tabBarItem.selectedImage = [[UIImageimageNamed:@"tab_search_selected.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

    }else {

       //参考

    }

    

    [vc2.tabBarItemsetTitlePositionAdjustment:offset];

    

    //选中和未选中文字颜色控制

    [[UITabBarItemappearance] setTitleTextAttributes:[NSDictionarydictionaryWithObjectsAndKeys:[UIColorblackColor],NSForegroundColorAttributeNamenil]forState:UIControlStateNormal];


   UIColor *titleHighlightedColor = [UIColorredColor];

    [[UITabBarItemappearance] setTitleTextAttributes:[NSDictionarydictionaryWithObjectsAndKeys:titleHighlightedColor,NSForegroundColorAttributeName,nil]forState:UIControlStateSelected];


    tbc.viewControllers =@[vc1, vc2];


5,效果




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