自定义Tabbar

来源：互联网发布：mac系统安装软件编辑：程序博客网时间：2024/05/21 07:56

// QYFTabBar.h

// 自定义Tabbar

// Created by ztt on 2017/12/21.

#import <UIKit/UIKit.h>

@class QYFTabBar;

@protocol QYFTabBarDelegate<UITabBarDelegate>

@optional

- (void)tabBarDidClickPlusButton:(QYFTabBar *)tabBar;

@end

@interface QYFTabBar : UITabBar

@property(nonatomic,weak)id<QYFTabBarDelegate>delegate;

#import "QYFTabBar.h"

#import "UIView+Frame.h"

#import "XMGConst.h"

@interface QYFTabBar ()

@property (nonatomic,weak) UIButton *plusButton;

/** 上一次点击的按钮 */

@property (nonatomic,weak) UIControl *previousClickedTabBarButton;

@end

@implementation QYFTabBar

@dynamic delegate;

- (UIButton *)plusButton

{

if (_plusButton ==nil) {

UIButton *btn = [UIButtonbuttonWithType:UIButtonTypeCustom];

[btn setImage:[UIImageimageNamed:@"btn_sys_click"]forState:UIControlStateNormal];

[btn setImage:[UIImageimageNamed:@"btn_sys_click"]forState:UIControlStateHighlighted];

[btn sizeToFit];

[self addSubview:btn];

[btn addTarget:selfaction:@selector(plusBtnClick)forControlEvents:UIControlEventTouchUpInside];

_plusButton = btn;

}

return_plusButton;

}

/**

* 加号按钮点击

- (void)plusBtnClick

{

// 通知代理

if ([self.delegaterespondsToSelector:@selector(tabBarDidClickPlusButton:)]) {

[self.delegatetabBarDidClickPlusButton:self];

}

- (void)layoutSubviews

{

[superlayoutSubviews];

// 跳转tabBarButton位置

NSInteger count =self.items.count;

CGFloat btnW = self.xmg_width / (count + 1);

CGFloat btnH = self.xmg_height;

CGFloat x = 0;

int i = 0;

// 私有类:打印出来有个类,但是敲出来没有,说明这个类是系统私有类

// 遍历子控件调整布局

NSLog(@"%lu",(unsignedlong)self.subviews.count);

for (UIControl *tabBarButtonin self.subviews) {

if ([tabBarButton isKindOfClass:NSClassFromString(@"UITabBarButton")]) {

// 设置previousClickedTabBarButton默认值为最前面的按钮

if (i == 0 && self.previousClickedTabBarButton ==nil) {

self.previousClickedTabBarButton = tabBarButton;

}

if (i == 2) {

i += 1;

}

x = i * btnW;

tabBarButton.frame = CGRectMake(x, 0, btnW, btnH);

i++;

// UIControlEventTouchDownRepeat : 在短时间内连续点击按钮

// 监听点击

[tabBarButton addTarget:selfaction:@selector(tabBarButtonClick:)forControlEvents:UIControlEventTouchUpInside];

}

// 调整发布按钮位置

self.plusButton.center =CGPointMake(self.xmg_width *0.5, self.xmg_height *0.3);

}

/**

* tabBarButton的点击

- (void)tabBarButtonClick:(UIControl *)tabBarButton

{

if (self.previousClickedTabBarButton == tabBarButton) {

// 发出通知，告知外界tabBarButton被重复点击了

[[NSNotificationCenterdefaultCenter]postNotificationName:XMGTabBarButtonDidRepeatClickNotificationobject:nil];

}

self.previousClickedTabBarButton = tabBarButton;

}

// QYFTabBarController.h

// 自定义Tabbar

// Created by ztt on 2017/12/21.

#import <UIKit/UIKit.h>

@interface QYFTabBarController : UITabBarController

// QYFTabBarController.m

// 自定义Tabbar

// Created by ztt on 2017/12/21.

#import "QYFTabBarController.h"

#import "UIImage+Image.h"

#import "QYFTabBar.h"

@interface QYFTabBarController ()<QYFTabBarDelegate>

@end

@implementation QYFTabBarController

// 只会调用一次

+ (void)load

{

// 获取哪个类中UITabBarItem

UITabBarItem *item = [UITabBarItemappearanceWhenContainedIn:self,nil];

// 设置按钮选中标题的颜色:富文本:描述一个文字颜色,字体,阴影,空心,图文混排

// 创建一个描述文本属性的字典

NSMutableDictionary *attrs = [NSMutableDictionarydictionary];

attrs[NSForegroundColorAttributeName] = [UIColorblackColor];

[item setTitleTextAttributes:attrsforState:UIControlStateSelected];

// 设置字体尺寸:只有设置正常状态下,才会有效果

NSMutableDictionary *attrsNor = [NSMutableDictionarydictionary];

attrsNor[NSFontAttributeName] = [UIFontsystemFontOfSize:13];

[item setTitleTextAttributes:attrsNorforState:UIControlStateNormal];

}

#pragma mark - 生命周期方法

- (void)viewDidLoad {

[superviewDidLoad];

// Do any additional setup after loading the view.

// 1 添加子控制器(5个子控制器) -> 自定义控制器 -> 划分项目文件结构

[selfsetupAllChildViewController];

// 2 设置tabBar上按钮内容 -> 由对应的子控制器的tabBarItem属性

[selfsetupAllTitleButton];

// 3.自定义tabBar

[selfsetupTabBar];

}

#pragma mark - 自定义tabBar

- (void)setupTabBar

{

QYFTabBar *tabBar = [[QYFTabBaralloc] init];

tabBar.delegate = self;

[self setValue:tabBarforKey:@"tabBar"];

}

#pragma mark - 添加所有子控制器

- (void)setupAllChildViewController

{

UIViewController *VC1 = [[UIViewControlleralloc]init];

VC1.view.backgroundColor = [UIColorredColor];

UINavigationController *nav1 = [[UINavigationControlleralloc] initWithRootViewController:VC1];

[selfaddChildViewController:nav1];

UIViewController *VC2 = [[UIViewControlleralloc]init];

VC2.view.backgroundColor = [UIColoryellowColor];

UINavigationController *nav2 = [[UINavigationControlleralloc] initWithRootViewController:VC2];

[selfaddChildViewController:nav2];

UIViewController *VC3 = [[UIViewControlleralloc]init];

VC3.view.backgroundColor = [UIColorgrayColor];

UINavigationController *nav3 = [[UINavigationControlleralloc] initWithRootViewController:VC3];

[selfaddChildViewController:nav3];

UIViewController *VC4 = [[UIViewControlleralloc]init];

VC4.view.backgroundColor = [UIColorblueColor];

UINavigationController *nav4 = [[UINavigationControlleralloc] initWithRootViewController:VC4];

[selfaddChildViewController:nav4];

}

// 设置tabBar上所有按钮内容

- (void)setupAllTitleButton

{

UINavigationController *nav =self.childViewControllers[0];

nav.title = @"tabbar1";

nav.tabBarItem.image = [UIImageimageNamed:@"icon_sy"];

// 快速生成一个没有渲染图片

nav.tabBarItem.selectedImage = [UIImageimageOriginalWithName:@"icon_sy_click"];

UINavigationController *nav1 =self.childViewControllers[1];

nav1.title = @"tabbar2";

nav1.tabBarItem.image = [UIImageimageNamed:@"icon_sz"];

nav1.tabBarItem.selectedImage = [UIImageimageOriginalWithName:@"icon_sz_click"];

UINavigationController *nav2 =self.childViewControllers[2];

nav2.title = @"tabbar3";

nav2.tabBarItem.image = [UIImageimageNamed:@"icon_sy"];

nav2.tabBarItem.selectedImage = [UIImageimageOriginalWithName:@"icon_sz_click"];

UINavigationController *nav3 =self.childViewControllers[3];

nav3.title = @"tabbar4";

nav3.tabBarItem.image = [UIImageimageNamed:@"icon_sz"];

nav3.tabBarItem.selectedImage = [UIImageimageOriginalWithName:@"icon_sy_click"];

}

阅读全文

0 0