iOS自定义Tabbar

因为公司需求，苹果的原生tabBar已经不能满足本人类的需求，我在网上查了下，觉得还是自己写一个tabBar比较好。

虽然是自定义tabBar，还是在原生基础上写

基本思路就是：隐藏系统原生tabBar，自己写一个tabView（一个自定义View）放在底部当成tabBar，在点击View上面的button的时候调用原生方法，实现控制器切换

可以实现的功能：

1 可以自己随意的隐藏显示tabBar，实现一些关于tabBar的动画，所有的一切只需要设置tabView就可以了

2 可以自定义tabBar的样式，在tabBar上添加背景图，添加气泡等等完全无压力

在网上找了一个别人写好的tabBar，然后自己修改了一下，立即就可以实现需求，非常方便

CBTabBar

只有两个类

CBTabBarViewController的.h代码

#import <UIKit/UIKit.h>    /*   *可以实现隐藏tabBar功能   */      @interface CBTabBarViewController : UITabBarController  -(void)hidCBTabbar:(BOOL)ishid;  @property (nonatomic, strong) NSArray           * imageNameArray;  @property (nonatomic, strong) NSArray           * imageName_sel_Array;  -(instancetype)initWithImageArray:(NSArray *)array andImageSelArray:(NSArray *)selArray;  -(void)setSelectedButton:(NSUInteger)selectedIndex;  @end

CBTabBarViewController的.m代码

#import "CBTabBarViewController.h"  #import "CBTabBarButton.h"  @interface CBTabBarViewController (){      UIView * myView;      NSMutableArray * _buttonArray;  }  @property (nonatomic, weak) UIButton *selectedBtn;  @end    @implementation CBTabBarViewController    -(instancetype)initWithImageArray:(NSArray *)array andImageSelArray:(NSArray *)selArray{      self = [super init];      if (self) {                      self.imageNameArray = array;          self.imageName_sel_Array = selArray;          [self loadSubView];//添加自定义tabBar      }      return self;  }    - (void)viewDidLoad {      [super viewDidLoad];            self.imageNameArray = [NSArray array];      self.imageName_sel_Array = [NSArray array];      _buttonArray = [[NSMutableArray alloc] init];  }    -(void)loadSubView{                  //删除现有的tabBar      CGRect rect = self.tabBar.frame;      [self.tabBar removeFromSuperview];  //移除TabBarController自带的下部的条                        //添加自己的视图      /*       *tabBar的底部View       *背景图，button都会添加到这个myVIew上面       *可以自己添加其他View       */      myView = [[UIView alloc] init];      myView.frame = rect;  //    myView.backgroundColor = [UIColor redColor];      [self.view addSubview:myView];                        //给tabBar添加自定义背景图      UIImageView * imageView = [[UIImageView alloc] init];      imageView.image = [UIImage imageNamed:@"tabBarBGImg"];      imageView.frame = CGRectMake(0, 0, myView.frame.size.width, myView.frame.size.height);      [myView addSubview:imageView];                    if (self.imageName_sel_Array.count < 1 || self.imageNameArray.count < 1) {          return;      }      [_buttonArray removeAllObjects];      for (int i = 0; i < 5; i++) {                    CGFloat x = i * myView.frame.size.width / 5;                    UIView * view = [[UIView alloc] initWithFrame:CGRectMake(x, 2, myView.frame.size.width / 5, myView.frame.size.height)];          [myView addSubview:view];          if (i == 2) {              view.frame = CGRectMake(x, 0, myView.frame.size.width / 5, myView.frame.size.height);          }                              //tabber 上面的button          CBTabBarButton *btn = [[CBTabBarButton alloc] init];                    NSString *imageName = [self.imageNameArray objectAtIndex:i];          NSString *imageNameSel = [self.imageName_sel_Array objectAtIndex:i];                    [btn setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];          [btn setImage:[UIImage imageNamed:imageNameSel] forState:UIControlStateSelected];                    btn.tag = i;//设置按钮的标记, 方便来索引当前的按钮,并跳转到相应的视图          [btn addTarget:self action:@selector(clickBtn:) forControlEvents:UIControlEventTouchUpInside];                    btn.center = CGPointMake(view.frame.size.width / 2, view.frame.size.height / 2);          btn.bounds = CGRectMake(0, 0, 40, 40);                    [view addSubview:btn];          [_buttonArray addObject:btn];                      //设置刚进入时,第一个按钮为选中状态          if (0 == i) {              btn.selected = YES;              self.selectedBtn = btn;  //设置该按钮为选中的按钮          }        }  }      //通过点击tabBar上面的button来跳转控制器  - (void)clickBtn:(UIButton *)button {      //1.先将之前选中的按钮设置为未选中      self.selectedBtn.selected = NO;      //2.再将当前按钮设置为选中      button.selected = YES;      //3.最后把当前按钮赋值为之前选中的按钮      self.selectedBtn = button;      //4.跳转到相应的视图控制器. (通过selectIndex参数来设置选中了那个控制器)      self.selectedIndex = button.tag;  }    //调用此方法来跳转控制器  -(void)setSelectedButton:(NSUInteger)selectedIndex{      //1.先将之前选中的按钮设置为未选中      self.selectedBtn.selected = NO;      //2.从buttonarray中找到当前button      UIButton * button = [_buttonArray objectAtIndex:selectedIndex];      //3.最后把当前按钮赋值为之前选中的按钮      button.selected = YES;      //4.跳转到相应的视图控制器. (通过selectIndex参数来设置选中了那个控制器)      self.selectedIndex = selectedIndex;  }    //通过设置View的透明度来隐藏tabBar  -(void)hidCBTabbar:(BOOL)ishid{      if (ishid) {          myView.alpha = 0;      }else{          myView.alpha = 1;      }  }

CBTabBarButton.m代码

-(void)setHighlighted:(BOOL)highlighted{      //只需要取消高亮，这里什么都不用写  }

调用tabBar的代码

#import "ViewController.h"    #import "CBTabBarViewController.h"  #import "TestViewController.h"  @interface ViewController ()    @end    @implementation ViewController    - (void)viewDidLoad {      [super viewDidLoad];                  UIViewController *firstViewController = [[TestViewController alloc] init];      firstViewController.view.backgroundColor = [UIColor redColor];      UIViewController *firstNavigationController = [[UINavigationController alloc]                                                     initWithRootViewController:firstViewController];            UIViewController *secondViewController = [[TestViewController alloc] init];      secondViewController.view.backgroundColor = [UIColor yellowColor];      UIViewController *secondNavigationController = [[UINavigationController alloc]                                                      initWithRootViewController:secondViewController];            UIViewController *thirdViewController = [[TestViewController alloc] init];      thirdViewController.view.backgroundColor = [UIColor greenColor];      UIViewController *thirdNavigationController = [[UINavigationController alloc]                                                     initWithRootViewController:thirdViewController];            UIViewController *fourthViewController = [[TestViewController alloc] init];      fourthViewController.view.backgroundColor = [UIColor orangeColor];      UIViewController *fourthNavigationController = [[UINavigationController alloc]                                                      initWithRootViewController:fourthViewController];            UIViewController *fifthViewController = [[TestViewController alloc] init];      fifthViewController.view.backgroundColor = [UIColor blueColor];      UIViewController *fifthNavigationController = [[UINavigationController alloc]                                                     initWithRootViewController:fifthViewController];                  NSArray * imageArray = [NSArray arrayWithObjects:@"sq_03",@"sq_05",@"zcfTabIcon",@"sousuo",@"wode",nil];      NSArray * selImageArray = [NSArray arrayWithObjects:@"sq_18",@"sq_19",@"sq_16",@"sousuo_sel",@"wode_sel",nil];            CBTabBarViewController * tabVC = [[CBTabBarViewController alloc] initWithImageArray:imageArray andImageSelArray:selImageArray];      tabVC.viewControllers = @[firstNavigationController,secondNavigationController,thirdNavigationController,fourthNavigationController,fifthNavigationController];      [tabVC setSelectedButton:0];              UIWindow * window = [[[UIApplication sharedApplication] delegate] window];      window.rootViewController = tabVC;                    }

很简单的tabBar，其中的loadSubView方法可能有隐患，以后再处理

这样靠设置frame写出来的tabBar没有横屏效果，想要实现横屏效果需要自己再写约束代码