自定義UITabBar ios7-ios8按鈕和背景

Question

我一直在努力更改uitabbar的圖標和背景，以使其看起來像我想要的樣子。 每次更改背景顏色時，它都會顯示顏色，但不會像我給定的特定顏色那樣固定。 運行時，我為這些項目設置的圖像也會變灰。

所以我有一個通過開始按鈕開始的簡歷。 按鈕代碼：

- (IBAction)start:(id)sender {

UIStoryboard *storyBoard = [self storyboard];
Start *startViewController = [storyBoard instantiateViewControllerWithIdentifier:@"start"];
[self presentViewController:startViewController animated:NO completion:nil];}

如您所見，它僅發送到第二個VC，即UITabBarController。 在appdelegate中，我嘗試過：

    Start *tabController = (Start *)self.window.rootViewController;

//tab1
UITabBar *tabBar = (UITabBar *)tabController.tabBar;
UITabBarItem *item1 = [tabBar.items objectAtIndex:0];
[item1 setImage:[[UIImage imageNamed:@"1.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

//tab2
UITabBarItem *item2 = [tabBar.items objectAtIndex:1];
[item2 setImage:[[UIImage imageNamed:@"2.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
//tab3
UITabBarItem *item3 = [tabBar.items objectAtIndex:2];
[item3 setImage:[[UIImage imageNamed:@"3.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
//tab4
UITabBarItem *item4 = [tabBar.items objectAtIndex:3];
[item4 setImage:[[UIImage imageNamed:@"4.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

但它似乎沒有用。 我看上去很多，但我能找到的只是關於setFinishedSelectedImage：withFinishedUnselectedImage：的教程。 這實際上並沒有幫助導致它被棄用。 到目前為止，我所能做的就是從interfacebuilder設置uitabbar。

要更改顏色，我只是更改了色調和背景色。 也嘗試將uiimageview放在uitabbar后面，但這似乎也不起作用。

Answer 1

要統一UITabBar ios7-ios8，請使用此代碼

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

    item0.title = @"item0title";
    item1.title = @"item1title";
    item2.title=@"item2title";
    item3.title=@"item3title";


    [item0 setImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item0 setSelectedImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item1 setImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item1 setSelectedImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item2 setImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item2 setSelectedImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    [item3 setImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    [item3 setSelectedImage:[[UIImage imageNamed:@"imagename"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    //[[UITabBar appearance] setSelectedImageTintColor:[uicolor whitcolor]];
    //[[UITabBar appearance] setBarTintColor:[UIColor yellowColor]];
    //[[UITabBar appearance] setTintColor:[UIColor yellowColor]];
    [[UITabBarItem appearance] setTitleTextAttributes:@{ NSForegroundColorAttributeName : [UIColor yellowColor] }
                                             forState:UIControlStateSelected];
    [[UITabBarItem appearance] setTitleTextAttributes:@{ NSForegroundColorAttributeName : [UIColor whiteColor] }
                                             forState:UIControlStateNormal];