1.导入CYLTabBarController
使用cocoapods导入即可 pod 'CYLTabBarController', '~> 1.14.1'，终端 pod install 即可
2.配置
新建一个基于 NSObject 类 MainTabBarControllerConfig，用于配置CYLTabBarController及管理；头文件引入
#import <CYLTabBarController.h>
.h
@interface MainTabBarControllerConfig : NSObject
///CYLTabBarController
@property (nonatomic,strong) CYLTabBarController *mainTabBarController;@end
.m
- (CYLTabBarController *)mainTabBarController{
if (!_mainTabBarController) {
UIEdgeInsets imageInsets = UIEdgeInsetsZero;
UIOffset titlePositionAdjustment = UIOffsetZero;
_mainTabBarController = [CYLTabBarController tabBarControllerWithViewControllers:[self arrayViewControllerItem] tabBarItemsAttributes:[self arrayAttributesItem] imageInsets:imageInsets titlePositionAdjustment:titlePositionAdjustment];
[self customizeTabBarAppearance:_mainTabBarController];
}
return _mainTabBarController;
}
- (NSArray *)arrayViewControllerItem{
UINavigationController *firstNav = [[UINavigationController alloc] initWithRootViewController:[FirstViewController new]];
UINavigationController *secondNav = [[UINavigationController alloc] initWithRootViewController:[SecondViewController new]];
UINavigationController *thirdNav = [[UINavigationController alloc] initWithRootViewController:[ThirdViewController new]];
UINavigationController *lastNav = [[UINavigationController alloc] initWithRootViewController:[LastViewController new]];
///返回需要加载的模块
return @[firstNav,secondNav,thirdNav,lastNav];
}
- (NSArray *)arrayAttributesItem{
NSDictionary *bookcaseItemsAttributes =@{CYLTabBarItemTitle : @"首页",
CYLTabBarItemImage : @"aa_unselect",
/* NSString and UIImage are supported*/
CYLTabBarItemSelectedImage : @"aa_select",};
NSDictionary *discoverItemsAttributes = @{CYLTabBarItemTitle : @"产品",
CYLTabBarItemImage : @"bb_unselect",
CYLTabBarItemSelectedImage : @"bb_select",};
NSDictionary *askklItemsAttributes = @{CYLTabBarItemTitle : @"工具",
CYLTabBarItemImage : @"cc_unselect",
CYLTabBarItemSelectedImage : @"cc_select",};
NSDictionary *userItemsAttributes = @{CYLTabBarItemTitle : @"我的",
CYLTabBarItemImage : @"dd_unselect",
CYLTabBarItemSelectedImage : @"dd_select"};
NSArray *tabBarItemsAttributes = @[bookcaseItemsAttributes,
discoverItemsAttributes,
askklItemsAttributes,
userItemsAttributes];
return tabBarItemsAttributes;
}
/**
* 更多TabBar自定义设置：比如：tabBarItem 的选中和不选中文字和背景图片属性、tabbar 背景图片属性等等
*/
- (void)customizeTabBarAppearance:(CYLTabBarController *)tabBarController {
// Customize UITabBar height
// 自定义 TabBar 高度
// tabBarController.tabBarHeight = CYLTabBarControllerHeight;
// set the text color for unselected state
// 普通状态下的文字属性
NSMutableDictionary *normalAttrs = [NSMutableDictionary dictionary];
normalAttrs[NSForegroundColorAttributeName] = [UIColor grayColor];
// set the text color for selected state
// 选中状态下的文字属性
NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
selectedAttrs[NSForegroundColorAttributeName] = [UIColor greenColor];
// set the text Attributes
// 设置文字属性
UITabBarItem *tabBar = [UITabBarItem appearance];
[tabBar setTitleTextAttributes:normalAttrs forState:UIControlStateNormal];
[tabBar setTitleTextAttributes:selectedAttrs forState:UIControlStateSelected];
// Set the dark color to selected tab (the dimmed background)
// TabBarItem选中后的背景颜色
// [self customizeTabBarSelectionIndicatorImage];
// update TabBar when TabBarItem width did update
// If your app need support UIDeviceOrientationLandscapeLeft or UIDeviceOrientationLandscapeRight，
// remove the comment '//'
// 如果你的App需要支持横竖屏，请使用该方法移除注释 '//'
// [self updateTabBarCustomizationWhenTabBarItemWidthDidUpdate];
// set the bar shadow image
// This shadow image attribute is ignored if the tab bar does not also have a custom background image.So at least set somthing.
[[UITabBar appearance] setBackgroundImage:[[UIImage alloc] init]];
[[UITabBar appearance] setBackgroundColor:[UIColor whiteColor]];
[[UITabBar appearance] setShadowImage:[UIImage imageNamed:@"tapbar_top_line"]];
// set the bar background image
// 设置背景图片
// UITabBar *tabBarAppearance = [UITabBar appearance];
// [tabBarAppearance setBackgroundImage:[UIImage imageNamed:@"tab_bar"]];
// remove the bar system shadow image
// 去除 TabBar 自带的顶部阴影
// [[UITabBar appearance] setShadowImage:[[UIImage alloc] init]];
}
3.使用
在AppDelegate.m didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 方法中
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
// 创建Window
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// 设置Window的背景颜色
self.window.backgroundColor = [UIColor whiteColor];
// 设置根控制器
MainTabBarControllerConfig *tabbarConfig = [[MainTabBarControllerConfig alloc]init];
CYLTabBarController *mainTabbarController = tabbarConfig.mainTabBarController;
[self.window setRootViewController:mainTabbarController];
// 设置并显示主窗口
[self.window makeKeyAndVisible];
return YES;
}
4.自定义按钮
加入中间按钮之前，确保上面的功能已经实现；新建一个基于 CYLPlusButton 的类 TabbarPlusButton，实现代理 CYLPlusButtonSubclassing
.h
@interface TabbarPlusButton : CYLPlusButton<CYLPlusButtonSubclassing>@end
.m
@implementation TabbarPlusButton
- (instancetype)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:frame]) {
self.titleLabel.textAlignment = NSTextAlignmentCenter;
self.adjustsImageWhenHighlighted = NO;
}
return self;
}
//上下结构的 button
- (void)layoutSubviews {
[super layoutSubviews];
// 控件大小,间距大小
// 注意：一定要根据项目中的图片去调整下面的0.7和0.9，Demo之所以这么设置，因为demo中的 plusButton 的 icon 不是正方形。
CGFloat const imageViewEdgeWidth = self.bounds.size.width * 0.7;
CGFloat const imageViewEdgeHeight = imageViewEdgeWidth * 0.9;
CGFloat const centerOfView = self.bounds.size.width * 0.5;
CGFloat const labelLineHeight = self.titleLabel.font.lineHeight;
CGFloat const verticalMargin = (self.bounds.size.height - labelLineHeight - imageViewEdgeHeight) * 0.5;
// imageView 和 titleLabel 中心的 Y 值
CGFloat const centerOfImageView = verticalMargin + imageViewEdgeHeight * 0.5;
CGFloat const centerOfTitleLabel = imageViewEdgeHeight + verticalMargin * 2 + labelLineHeight * 0.5 + 5;
//imageView position 位置
self.imageView.bounds = CGRectMake(0, 0, imageViewEdgeWidth, imageViewEdgeHeight);
self.imageView.center = CGPointMake(centerOfView, centerOfImageView);
//title position 位置
self.titleLabel.bounds = CGRectMake(0, 0, self.bounds.size.width, labelLineHeight);
self.titleLabel.center = CGPointMake(centerOfView, centerOfTitleLabel);
}
#pragma mark -
#pragma mark - CYLPlusButtonSubclassing Methods
/*
*
Create a custom UIButton with title and add it to the center of our tab bar
*
*/
+ (id)plusButton {
TabbarPlusButton *button = [[TabbarPlusButton alloc] init];
///中间按钮图片
UIImage *buttonImage = [UIImage imageNamed:@"post_normal"];
[button setImage:buttonImage forState:UIControlStateNormal];
[button setTitle:@"发布" forState:UIControlStateNormal];
[button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[button setTitle:@"发布" forState:UIControlStateSelected];
[button setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
button.titleLabel.font = [UIFont systemFontOfSize:9.5];
[button sizeToFit]; // or set frame in this way `button.frame = CGRectMake(0.0, 0.0, 250, 100);`
// button.frame = CGRectMake(0.0, 0.0, 250, 100);
// button.backgroundColor = [UIColor redColor];
// if you use `+plusChildViewController` , do not addTarget to plusButton.
[button addTarget:button action:@selector(clickPublish) forControlEvents:UIControlEventTouchUpInside];
return button;
}
/*
*
Create a custom UIButton without title and add it to the center of our tab bar
*
*/
//+ (id)plusButton
//{
//
// UIImage *buttonImage = [UIImage imageNamed:@"hood.png"];
// UIImage *highlightImage = [UIImage imageNamed:@"hood-selected.png"];
//
// CYLPlusButtonSubclass* button = [CYLPlusButtonSubclass buttonWithType:UIButtonTypeCustom];
//
// button.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleTopMargin;
// button.frame = CGRectMake(0.0, 0.0, buttonImage.size.width, buttonImage.size.height);
// [button setBackgroundImage:buttonImage forState:UIControlStateNormal];
// [button setBackgroundImage:highlightImage forState:UIControlStateHighlighted];
// [button addTarget:button action:@selector(clickPublish) forControlEvents:UIControlEventTouchUpInside];
//
// return button;
//}
#pragma mark -
#pragma mark - Event Response
- (void)clickPublish {
CYLTabBarController *tabBarController = [self cyl_tabBarController];
UIViewController *viewController = tabBarController.selectedViewController;
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:nil
cancelButtonTitle:@"取消"
destructiveButtonTitle:nil
otherButtonTitles:@"拍照", @"从相册选取", @"淘宝一键转卖", nil];
[actionSheet showInView:viewController.view];
}
#pragma mark - UIActionSheetDelegate
- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
NSLog(@"buttonIndex = %@", @(buttonIndex));
}
#pragma mark - CYLPlusButtonSubclassing
//+ (UIViewController *)plusChildViewController {
// UIViewController *plusChildViewController = [[UIViewController alloc] init];
// plusChildViewController.view.backgroundColor = [UIColor redColor];
// plusChildViewController.navigationItem.title = @"PlusChildViewController";
// UIViewController *plusChildNavigationController = [[UINavigationController alloc]
// initWithRootViewController:plusChildViewController];
// return plusChildNavigationController;
//}
//
//+ (NSUInteger)indexOfPlusButtonInTabBar {
// return 4;
//}
//
//+ (BOOL)shouldSelectPlusChildViewController {
// BOOL isSelected = CYLExternPlusButton.selected;
// if (isSelected) {
// NSLog(@"🔴类名与方法名：%@（在第%@行），描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"PlusButton is selected");
// } else {
// NSLog(@"🔴类名与方法名：%@（在第%@行），描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"PlusButton is not selected");
// }
// return YES;
//}
+ (CGFloat)multiplierOfTabBarHeight:(CGFloat)tabBarHeight {
return 0.3;
}
+ (CGFloat)constantOfPlusButtonCenterYOffsetForTabBarHeight:(CGFloat)tabBarHeight {
return -10;
}
@end
最后在AppDelegate.m didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 方法中加上 [TabbarPlusButton registerPlusButton] 即可;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
[TabbarPlusButton registerPlusButton]
// 创建Window
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// 设置Window的背景颜色
self.window.backgroundColor = [UIColor whiteColor];
// 设置根控制器
MainTabBarControllerConfig *tabbarConfig = [[MainTabBarControllerConfig alloc]init];
CYLTabBarController *mainTabbarController = tabbarConfig.mainTabBarController;
[self.window setRootViewController:mainTabbarController];
// 设置并显示主窗口
[self.window makeKeyAndVisible];
return YES;
}
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