jyiosapp/ios/JianYuIOS/JianYuIOS/JYTabBarController.m

//
//  JYTabBarController.m
//  JianYuIOS
//
//  Created by apple on 2018/11/8.
//  Copyright © 2018年 lixianglan. All rights reserved.
//

#import "JYTabBarController.h"
#import "JYNavigationController.h"
#import "JYSearchViewController.h"
#import "JYSubViewController.h"
#import "JYExpViewController.h"
#import "JYMineViewController.h"

#import "ViewController1.h"
#import "ViewController2.h"
#import "ViewController3.h"
#import "ViewController4.h"

@interface JYTabBarController ()<UITabBarControllerDelegate>

@property (nonatomic,strong)JYSearchViewController *V1;
@property (nonatomic,strong)JYSubViewController *V2;
@property (nonatomic,strong)JYExpViewController *V3;
@property (nonatomic,strong)JYMineViewController *V4;

@property (nonatomic,strong)ViewController1 *VV1;
@property (nonatomic,strong)ViewController2 *VV2;
@property (nonatomic,strong)ViewController3 *VV3;
@property (nonatomic,strong)ViewController4 *VV4;


@end





@implementation JYTabBarController


+(void)initialize
{
    
    if (@available(iOS 9.0, *)) {
        UITabBarItem *tabBarItem = [UITabBarItem appearanceWhenContainedInInstancesOfClasses:@[self]];
        
        NSMutableDictionary *dictNormal = [NSMutableDictionary dictionary];
        dictNormal[NSForegroundColorAttributeName] = UIColorFromRGB(0x888888);
        dictNormal[NSFontAttributeName] = [UIFont systemFontOfSize:10];
        
        NSMutableDictionary *dictSelected = [NSMutableDictionary dictionary];
        dictSelected[NSForegroundColorAttributeName] = UIColorFromRGB(0x2cb7ca);
        dictSelected[NSFontAttributeName] = [UIFont systemFontOfSize:10];
        
        [tabBarItem setTitleTextAttributes:dictNormal forState:UIControlStateNormal];
        [tabBarItem setTitleTextAttributes:dictSelected forState:UIControlStateSelected];
    } else {
        // Fallback on earlier versions
    }
    
    
}



- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.delegate = self;
    self.tabBarController.tabBar.delegate = self;
    [self setUpAllChildVc];
    [self setSelectedIndex:0];
    
    [self switchRootViewController];
}


//判断是否跳转
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{
    NSLog(@"点击了第几个item:%ld",tabBarController.tabBar.selectedItem.tag);
//    if (![LXUserDefaults token]) {
//        NSString *index = [NSString stringWithFormat:@"%ld",tabBarController.tabBar.selectedItem.tag];
//        [[NSNotificationCenter defaultCenter] postNotificationName:@"isLoginTabBar" object:nil userInfo:@{@"item_index":index}];
//        return NO;
//    }
    return YES;
    
}

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item{
//    NSLog(@"点击了第几个item:%ld",item.tag);
}

#pragma mark - -----------------------------------------
- (void)setUpAllChildVc
{
    self.V1 = [[JYSearchViewController alloc] init];
    [self setUpOneChildVcWithVc:self.V1 Image:@"search" selectedImage:@"search1" title:@"搜索" tag:0];

    self.V2 = [[JYSubViewController alloc] init];
    [self setUpOneChildVcWithVc:self.V2 Image:@"subscribe" selectedImage:@"subscribe1" title:@"订阅" tag:1];

    self.V3 = [[JYExpViewController alloc] init];
    [self setUpOneChildVcWithVc:self.V3 Image:@"laboratory" selectedImage:@"laboratory1" title:@"实验室" tag:2];


    self.V4 = [[JYMineViewController alloc] init];
    [self setUpOneChildVcWithVc:self.V4 Image:@"mine" selectedImage:@"mine1" title:@"我的" tag:3];
    
    
//    self.VV1 = [[ViewController1 alloc] init];
//    [self setUpOneChildVcWithVc:self.VV1 Image:@"icon-home" selectedImage:@"icon-home2" title:@"搜索" tag:0];
//
//    self.VV2 = [[ViewController2 alloc] init];
//    [self setUpOneChildVcWithVc:self.VV2 Image:@"icon-home" selectedImage:@"icon-home2" title:@"订阅" tag:1];
//
//    self.VV3 = [[ViewController3 alloc] init];
//    [self setUpOneChildVcWithVc:self.VV3 Image:@"icon-home" selectedImage:@"icon-home2" title:@"实验室" tag:2];
    
//    self.VV4 = [[ViewController4 alloc] init];
//    [self setUpOneChildVcWithVc:self.VV4 Image:@"icon-home" selectedImage:@"icon-home2" title:@"我的" tag:3];
    

}

#pragma mark - 初始化设置tabBar上面单个按钮的方法

/**
 *
 *  设置单个tabBarButton
 *
 *  @param VC            每一个按钮对应的控制器
 *  @param image         每一个按钮对应的普通状态下图片
 *  @param selectedImage 每一个按钮对应的选中状态下的图片
 *  @param title         每一个按钮对应的标题
 */
- (void)setUpOneChildVcWithVc:(UIViewController *)VC Image:(NSString *)image selectedImage:(NSString *)selectedImage title:(NSString *)title tag:(NSInteger)current_tag
{
    JYNavigationController *nav = [[JYNavigationController alloc] initWithRootViewController:VC];
    UIImage *myImage = [UIImage imageNamed:image];
    myImage = [myImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    
    //tabBarItem，是系统提供模型，专门负责tabbar上按钮的文字以及图片展示
    VC.tabBarItem.image = myImage;
    UIImage *mySelectedImage = [UIImage imageNamed:selectedImage];
    mySelectedImage = [mySelectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    VC.tabBarItem.selectedImage = mySelectedImage;
    VC.tabBarItem.title = title;
    //    VC.navigationItem.title = title;
    VC.tabBarItem.tag = current_tag;
    [self addChildViewController:nav];
}

-(UIColor *)randomColor
{
    return [UIColor whiteColor];
}


#pragma mark - 根控制器的切换
-(void)switchRootViewController
{
   [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeItems:) name:@"changeItems" object:nil];
}

-(void)changeItems:(NSNotification *)notification
{
    
    NSLog(@"收到改变tabbar的通知");
    NSDictionary *dict = notification.userInfo;
    NSInteger index = [dict[@"item_index"] integerValue];
    [self setSelectedIndex:index];
    
//    [self.V1 dealTabBar];
//    [self.V1 dealTabBar];
//    [self.V1 dealTabBar];
//    [self.V1 dealTabBar];
    
    if(index==1) {
        [self.V2 dealTabBar];
    }else if (index==2) {
        [self.V3 dealTabBar];
    }else if (index==3) {
        [self.V4 dealTabBar];
    }else {
        
    }
    
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end