底部的模块视图 继承自UIView
CustomTabBar.h
//自定义的CustomTabBar视图 在该视图上添加 按钮
#import <UIKit/UIKit.h>
@protocol CustomTabBarDelegate <NSObject>
//参数就是传递当前点击的是哪一个按钮，controller根据index来切换子视图控制器
-(void) changeViewControllerWithIndex:(NSInteger) index;
@end
@interface CustomTabBar : UIView
@property (nonatomic,assign) id <CustomTabBarDelegate> delegate;//协议代理
@end
CustomTabBar.m
// 自定义的CustomTabBar视图 在该视图上添加 按钮
#import "CustomTabBar.h"
@interface CustomTabBar ()
//数组
@property (nonatomic,strong) NSArray* btnArray;//按钮数组
@property (nonatomic,strong) NSArray* image1;//初始图片数组
@property (nonatomic,strong) NSArray* image2;//点击后图片数组
@property (nonatomic,strong) NSArray* titleArray;//下部标题
@end
@implementation CustomTabBar
#pragma mark--懒加载
//按钮数组
-(NSArray*)btnArray{
if (!_btnArray) {
_btnArray = [[NSArray alloc] initWithObjects:[UIButton buttonWithType:(UIButtonTypeSystem)],[UIButton buttonWithType:(UIButtonTypeSystem)],[UIButton buttonWithType:(UIButtonTypeSystem)],[UIButton buttonWithType:(UIButtonTypeSystem)],[UIButton buttonWithType:(UIButtonTypeSystem)], nil];
}
return _btnArray;
}
//初始图片数组
-(NSArray*)image1{
//图片数据且取消渲染
if (!_image1) {
_image1 = [[NSArray alloc] initWithObjects:[[UIImage imageNamed:@"homePage1"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"classify1"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"find1"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"shopping1"]imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"mine1"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)], nil];
}
return _image1;
}
//点击后图片数组
-(NSArray*)image2{
//图片数据且取消渲染
if (!_image2) {
_image2 = [[NSArray alloc] initWithObjects:[[UIImage imageNamed:@"homePage2"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"classify2"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"find2"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"shopping2"]imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)],[[UIImage imageNamed:@"mine2"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)], nil];
}
return _image2;
}
#pragma mark--初始化方法
-(instancetype)initWithFrame:(CGRect)frame{
//判断传递的frame高度 默认为50
if (frame.size.height != 50) {
frame.size.height = 50;
}
//默认宽度为屏宽
frame.size.width = [UIScreen mainScreen].bounds.size.width;
//父类继承
self = [super initWithFrame:frame];
//是否存在
if (self) {
//为当前视图添加子视图方法
[self mySubViews];
//背景色
self.backgroundColor = [UIColor whiteColor];
}
return self;
}
#pragma mark---为当前视图添加子视图
-(void)mySubViews{
//循环添加 按钮
for (int i = 0; i < self.btnArray.count; i++) {
//获取数组中按钮，设置按钮大小
UIButton* btn = self.btnArray[i];
btn.frame = CGRectMake(self.frame.size.width / 5 * i, 0, self.frame.size.width / 5, self.frame.size.height );
//设置按钮图片 tag值 回调方法
//判断是否为第一个
if (i == 0) {
[btn setImage:self.image2[i] forState:(UIControlStateNormal)];
btn.tag = 1000 + i;
[btn addTarget:self action:@selector(changeIndex:) forControlEvents:(UIControlEventTouchDown)];
}else{
[btn setImage:self.image1[i] forState:(UIControlStateNormal)];
btn.tag = 1000 + i;
[btn addTarget:self action:@selector(changeIndex:) forControlEvents:(UIControlEventTouchDown)];
}
//图片自适应大小
btn.imageView.contentMode = UIViewContentModeScaleAspectFill;
btn.imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
btn.imageView.clipsToBounds = YES;
//添加按钮
[self addSubview:btn];
}
}
#pragma mark--按钮回调方法
-(void)changeIndex:(UIButton*)sender{
NSLog(@"按钮回调方法");
//恢复初始
[self initial];
//设置一个初始值 通过循环获取到该按钮位置
int num = 0;
for (int i = 0; i < self.btnArray.count; i++) {
if (sender == [self viewWithTag:i + 1000]) {
num = i;
}
}
//更改选中按钮的状态 图片
[sender setImage:self.image2[num] forState:(UIControlStateNormal)];
//调用协议方法
[self delegateAction:num];
}
#pragma mark--按钮恢复初始状态
-(void)initial{
//循环恢复按钮初始状态
for (int i = 0; i < self.btnArray.count; i++) {
UIButton* btn = self.btnArray[i];
[btn setImage:self.image1[i] forState:(UIControlStateNormal)];
}
}
#pragma mark--需要调用协议方法
-(void)delegateAction:(int)index{
//判断协议是否存在以及是否有协议对应方法
if (self.delegate && [self.delegate respondsToSelector:@selector(changeViewControllerWithIndex:)]) {
//带有选中位置参数的协议方法
[self.delegate changeViewControllerWithIndex:index];
}
}
@end
MyTabBarController.h
//自定义的MyTabBarController 在该TabBarController上添加自定义tabbar视图 （CustomTabBar）
#import <UIKit/UIKit.h>
@interface MyTabBarController : UITabBarController
@end
MyTabBarController.m
/自定义的MyTabBarController 在该TabBarController上添加自定义tabbar视图 （CustomTabBar）
#import "MyTabBarController.h"
#import "CustomTabBar.h"//自定义tabbar视图
@interface MyTabBarController ()<CustomTabBarDelegate>
@property (nonatomic,strong) NSArray* allNavcTitleArray;//所有导航控制器的storyboard文件名
@property (nonatomic,strong) NSArray* allSBArray;//所有的storyboard文件名 (左侧文件夹中storyboard的创建名)
@end
@implementation MyTabBarController
#pragma mark--懒加载
//所有导航控制器的storyboard文件名
-(NSArray*)allNavcTitleArray{
if (!_allNavcTitleArray) {
_allNavcTitleArray = [[NSArray alloc] initWithObjects:@"SquareNavc",@"PrivateLetterNavc",@"ChoiceNavc",@"MineNavc", nil];
}
return _allNavcTitleArray;
}
//所有的storyboard文件名
-(NSArray*)allSBArray{
if (!_allSBArray) {
_allSBArray = [[NSArray alloc] initWithObjects:@"Square",@"PrivateLetter",@"Choice",@"Mine", nil];
}
return _allSBArray;
}
#pragma mark--加载视图
- (void)viewDidLoad {
[super viewDidLoad];
//循环添加UINavigationController 至自定义的MyTabBarController 中
for (int i = 0; i < self.allSBArray.count; i++) {
//获取storyboard
UIStoryboard* SB = [UIStoryboard storyboardWithName:self.allSBArray[i] bundle:nil];
//获取导航控制器
UINavigationController* navc = [SB instantiateViewControllerWithIdentifier:self.allNavcTitleArray[i]];
//添加导航控制器
[self addChildViewController:navc];
}
//隐藏系统的tabBar隐藏掉
self.tabBar.hidden = YES;
//自定义tabbar
//初始化自己的tabbar，并且添加到当前视图
CustomTabBar* customTabBar = [[CustomTabBar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 50, 0, 50)];
[self.view addSubview:customTabBar];
//声明该协议
customTabBar.delegate = self;
}
#pragma mark--内存出错
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark--协议方法
-(void) changeViewControllerWithIndex:(NSInteger)index{
NSLog(@"%ld",index);
//跳转对应的导航控制器中
self.selectedIndex = index;
}
@end
