iOS随笔小记--自定义tabBar

文件目录结构如下：

7476A6C9-4148-4E2D-A0BD-9342048A7764.png

主要就是上面四个文件（YDInstalTabBar和YDInstalTabBarButton）点击的item，在这使用自定义的button代替，YDInstalTabBar 是继承自UITabBarController, YDInstalTabBarButton继承UIView。

首先在YDInstalTabBarButton里面的操作：

.h文件

@property (nonatomic,retain) UIImage  * iconImage;
@property (nonatomic,retain) UIImage  * selectedIconImage;
@property (nonatomic,assign) id         target;
@property (nonatomic,assign) SEL        action;
@property (nonatomic,assign) BOOL       selected;

/**
 *   按钮的初始化方法(改变图标颜色)
 */
-(id)initWithFrame:(CGRect)frame unSelectedIconImage:(UIImage *)unSelectedIconImage selectedIconImage:(UIImage *)selectedIconImage  andTitle:(NSString *)title;

/**
 *    按钮的点击事件
 */
-(void)setClickEventTarget:(id)target action:(SEL)action;

.m文件
#import "YDDefine.h"
/**
这是一个消除performSelector警告的宏
*/
#define SuppressPerformSelectorLeakWarning(Stuff)
do {
_Pragma("clang diagnostic push")
_Pragma("clang diagnostic ignored "-Warc-performSelector-leaks"")
Stuff;
_Pragma("clang diagnostic pop")
} while (0)

@implementation YDInstalTabBarButton

-(void)dealloc{

self.iconImage=nil;
self.target=nil;
self.action=nil;
}

-(id)initWithFrame:(CGRect)frame unSelectedIconImage:(UIImage *)unSelectedIconImage selectedIconImage:(UIImage *)selectedIconImage andTitle:(NSString *)title{

if(self=[super initWithFrame:frame]){
    
    self.iconImage=unSelectedIconImage;
    self.selectedIconImage =selectedIconImage;
    
    UIImageView *imageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
    imageView.backgroundColor=YDSystemColor;
    imageView.userInteractionEnabled=YES;
    [self addSubview:imageView];
    
    UITapGestureRecognizer *singleTap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(singleTap:)];
    [imageView addGestureRecognizer:singleTap];
    
    
    UIImageView *iconImageView=[[UIImageView alloc]initWithFrame:CGRectMake(12, 15, 30, 25)];
    iconImageView.tag=1001;
    iconImageView.image=unSelectedIconImage;
    [self addSubview:iconImageView];
    
    UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake(0, 48,53, 14)];
    label.text=title;
    label.tag=1002;
    label.font=[UIFont boldSystemFontOfSize:12];
    label.textColor=YDSystemTextImageColor;
    label.textAlignment=NSTextAlignmentCenter;
    [self addSubview:label];
}
return self;
}

-(void)setSelected:(BOOL)selected{

if(_selected!=selected){
    
    _selected=selected;
    UIImageView *imageView=(id)[self viewWithTag:1001];
    UILabel * label = (id)[self viewWithTag:1002];
    
    if(selected){
        
        imageView.image=self.selectedIconImage;
  //    label.textColor = YDWhiteColor;
        label.textColor = YDselectedTintColor;
        
    }else{
        
        imageView.image=self.iconImage;
        
        label.textColor =YDSystemTextImageColor;
    }
}
}

-(void)setClickEventTarget:(id)target action:(SEL)action{

//保存目标和方法
self.target=target;

self.action=action;
}

-(void)singleTap:(UITapGestureRecognizer *)tap{

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
[self.target performSelector:self.action withObject:self];
#pragma clang diagnostic pop}

}

YDInstalTabBar里面的操作稍微复杂一点点：

@interface YDInstalTabBar : UITabBarController

@property (nonatomic,assign) BOOL      firstLoad;

@property (nonatomic,retain) UIView  * customizedTabbar;

//当选中某个tabBar时，通过此方法刷新界面
-(void)reloadTabBarSelectedByIndex:(NSInteger) index;

在.m文件中引入YDInstalTabBarButton的头文件

@implementation YDInstalTabBar

-(void)dealloc{

self.customizedTabbar=nil;
}

-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];
NSArray *imageArr=@[@"product_N",@"modelRoom_N",@"HomeCollocation_N",@"PlaneLayout_N",@"BrandCulture_N",@"UserCenter_N"];
NSArray *selectedImageArr=@[@"product_NS",@"modelRoom_NS",@"HomeCollocation_NS",@"PlaneLayout_NS",@"BrandCulture_NS",@"UserCenter_NS"];
NSArray *titleArr=@[@"产品中心",@"样板间",@"家居搭配",@"平面布置",@"品牌文化",@"用户中心"];

if(_firstLoad){
    
    NSArray *tabbarBtns=self.tabBar.subviews;
    
    for(UIView *tabbarBtn in tabbarBtns){
        
        tabbarBtn.hidden=YES;
    }
    for(NSInteger i=0;i<self.viewControllers.count;i++){
        
        YDInstalTabBarButton *BarBtn=[[YDInstalTabBarButton alloc]initWithFrame:CGRectMake(83 + 163*i, 0, 55, 75) unSelectedIconImage:[UIImage imageNamed:imageArr[i]] selectedIconImage:[UIImage imageNamed:selectedImageArr[i]] andTitle:titleArr[i]];
        BarBtn.tag=10+i;
        [BarBtn setClickEventTarget:self action:@selector(tabbarClick:)];
        [self.tabBar addSubview:BarBtn];
    }
    
    YDInstalTabBarButton *selectedBtn=(YDInstalTabBarButton *)[self.tabBar viewWithTag:10+self.selectedIndex];
    selectedBtn.selected=YES;
    _firstLoad=NO;
}
}

- (void)viewDidLoad {
[super viewDidLoad];

_firstLoad=YES;
// Do any additional setup after loading the view.
[[UITabBar appearance] setBarTintColor:YDSystemColor];

//取消tabBar的透明效果
[UITabBar appearance].translucent = NO;
}

- (void)viewWillLayoutSubviews{

CGRect tabFrame =self.tabBar.frame;

tabFrame.size.height= 75;

tabFrame.origin.y= self.view.frame.size.height- 75;

self.tabBar.frame= tabFrame;

}

-(void)tabbarClick:(YDInstalTabBarButton *)button{

YDInstalTabBarButton *currentButton=(YDInstalTabBarButton *)[self.tabBar viewWithTag:(self.selectedIndex+10)];
if(currentButton != button){
    
    currentButton.selected=NO;
    
    button.selected=YES;
    
    self.selectedIndex=button.tag-10;
}
}

-(void)reloadTabBarSelectedByIndex:(NSInteger)index{

YDInstalTabBarButton * currentButton=(YDInstalTabBarButton *)[self.tabBar viewWithTag:(index+15)];

YDInstalTabBarButton * button = (YDInstalTabBarButton *)[self.tabBar viewWithTag:(index+10)];

if(currentButton != button){
    
    currentButton.selected=NO;
    
    button.selected=YES;
    
    self.selectedIndex=button.tag-10;
}
}

-(BOOL)shouldAutorotate{

return NO;
}