代码：参考黑马明杰的微博项目中的自定义bar，加入一点自己的思路
一、思路讲解
自定义tabbar替换定义的tabbar，在自定义tabbar内调节相关按钮的位置及样式，调节响应链的点击方法
二、相关问题解决
1、自定义tabbar继承UITabBar在layoutSubviews方法中调节中间按钮的位置，将位置往上调节。
- (void)layoutSubviews
{
#warning [super layoutSubviews] 一定要调用
[super layoutSubviews];
// 1.设置加号按钮的位置
// self.plusBtn.centerX = self.width * 0.5;
// self.plusBtn.y = -2;
// 2.设置其他tabbarButton的位置和尺寸
// CGFloat tabbarButtonW = self.width / 5;
int tabbarButtonIndex = 0;
for (UIView *child in self.subviews) {
Class class = NSClassFromString(@"UITabBarButton");
if ([child isKindOfClass:class]) {
// // 设置宽度
// child.width = tabbarButtonW;
// // 设置x
// child.x = tabbarButtonIndex * tabbarButtonW;
//
// // 增加索引
if (tabbarButtonIndex == 2) {
// [self bringSubviewToFront:child];
child.height = 55;
child.y = -6;
}
tabbarButtonIndex++;
}
}
}
2、分隔线解决
但是分隔线会在最上层显示很丑。解决方法将分隔线隐藏，自己写一个分隔线加上去，就不会挡住凸起的部分，记得中间的图标不要透明的
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
//设置背景,去除tabbar的黑线
[self setShadowImage:[HXBColor imageFromColor:[UIColor clearColor]]];
[self setBackgroundImage:[HXBColor imageFromColor:[UIColor whiteColor]]];
UIView *lineView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, 1)];
lineView.backgroundColor = kLineMainColor;
[self addSubview:lineView];
self.alpha = 1;
}
return self;
}
3、响应链解决
突出部分超出了tabbar的范围点击上方没有效果需要调节响应链方法
根据范围自己设置
-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
BOOL result = [super pointInside:point withEvent:event];
if (result) {
return result;
}
if (self.plusBtn.x<point.x&&(self.plusBtn.x+self.plusBtn.width)>point.x&&self.plusBtn.y<point.y&&(self.plusBtn.y+self.plusBtn.height)>point.y ) {
return YES;
}
return NO;
}
4、使用方法
自定义好tabbar后，替换原来的tabbar
// 2.更换系统自带的tabbar
HWTabBar *tabBar = [[HWTabBar alloc] init];
[self setValue:tabBar forKeyPath:@"tabBar"];
三、示例代码
@interface HXBTabbarControlle ()<UIAlertViewDelegate>
@property(nonatomic,strong)HXBNavigationController *managerNaviVC;
@end
@implementation HXBTabbarControlle
-(UIStatusBarStyle)preferredStatusBarStyle
{
self.view.backgroundColor = kBackgroundGrayDefautColor;
return UIStatusBarStyleLightContent; //默认的值是黑色的
}
+(void)initialize
{
UITabBarItem *item = [UITabBarItem appearance];
[item setTitleTextAttributes:@{NSForegroundColorAttributeName:kNavBarMainColor,NSFontAttributeName:[UIFont systemFontOfSize:11]} forState:UIControlStateSelected];
[item setTitleTextAttributes:@{NSForegroundColorAttributeName:SHColor(109, 109, 109),NSFontAttributeName:[UIFont systemFontOfSize:11]} forState:UIControlStateNormal];
UITabBar *bar = [UITabBar appearance];
bar.barTintColor = [UIColor whiteColor];
// HWTabBar *bar = [HWTabBar appearance];
// bar.barTintColor = [UIColor whiteColor];
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// HomeVC *home = [HomeVC new];
[self loginVertify];//登录验证
SearchHotelMainVC *home = [SearchHotelMainVC new];
[self addChildVc:home title:@"预定" imageName:@"btn_zhu" selectImageName:@"btn_zhu_h"];
OrderMainVC *order = [OrderMainVC new];
[self addChildVc:order title:@"订单" imageName:@"btn_dd" selectImageName:@"btn_dd_h"];
OpenDoorCenterVC *door = [OpenDoorCenterVC new];
[self addChildVc:door title:@"自助入住" imageName:@"tab_km" selectImageName:@"tab_km_h"];
ManagerServeVC *manager = [ManagerServeVC new];
[self addChildVc:manager title:@"服务" imageName:@"tab_fw" selectImageName:@"tab_fw_h"];
MineVC *mine = [MineVC new];
[self addChildVc:mine title:@"我的" imageName:@"btn-w" selectImageName:@"btn-w_h"];
// 2.更换系统自带的tabbar
HWTabBar *tabBar = [[HWTabBar alloc] init];
[self setValue:tabBar forKeyPath:@"tabBar"];
}
-(void)addChildVc:(UIViewController*)childVC title:(NSString*)title imageName:(NSString*)imageName selectImageName:(NSString*)selectImageName
{
childVC.title = title;
childVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:title image:[[UIImage imageNamed:imageName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:selectImageName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
HXBNavigationController *nav = [[HXBNavigationController alloc] initWithRootViewController:childVC];
[self addChildViewController:nav];
}
自定义tabbar的代码
#import <UIKit/UIKit.h>
@class HWTabBar;
#warning 因为HWTabBar继承自UITabBar，所以称为HWTabBar的代理，也必须实现UITabBar的代理协议
@protocol HWTabBarDelegate <UITabBarDelegate>
@optional
- (void)tabBarDidClickPlusButton:(UIButton *)plusBtn;
@end
@interface HWTabBar : UITabBar
@property (nonatomic, weak) id<HWTabBarDelegate> delegate;
@end
#import "HWTabBar.h"
#import "HXBColor.h"
#import "TabbarButton.h"
@interface HWTabBar()
@property (nonatomic, weak) UIButton *plusBtn;
@end
@implementation HWTabBar
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
//设置背景,去除tabbar的黑线
[self setShadowImage:[HXBColor imageFromColor:[UIColor clearColor]]];
[self setBackgroundImage:[HXBColor imageFromColor:[UIColor whiteColor]]];
UIView *lineView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, 1)];
lineView.backgroundColor = kLineMainColor;
[self addSubview:lineView];
self.alpha = 1;
}
return self;
}
//通知方法
-(void)upDatePlusBtn
{
self.plusBtn.selected = YES;
}
-(void)dealloc
{
//移除通知
[[NSNotificationCenter defaultCenter] removeObserver:self name:kNotificationKey object:nil];
}
/**
* 加号按钮点击
*/
- (void)plusClick
{
// 通知代理
if ([self.delegate respondsToSelector:@selector(tabBarDidClickPlusButton:)]) {
[self.delegate tabBarDidClickPlusButton:self.plusBtn];
}
}
- (void)layoutSubviews
{
#warning [super layoutSubviews] 一定要调用
[super layoutSubviews];
// 1.设置加号按钮的位置
// self.plusBtn.centerX = self.width * 0.5;
// self.plusBtn.y = -2;
// 2.设置其他tabbarButton的位置和尺寸
// CGFloat tabbarButtonW = self.width / 5;
int tabbarButtonIndex = 0;
for (UIView *child in self.subviews) {
Class class = NSClassFromString(@"UITabBarButton");
if ([child isKindOfClass:class]) {
// // 设置宽度
// child.width = tabbarButtonW;
// // 设置x
// child.x = tabbarButtonIndex * tabbarButtonW;
//
// // 增加索引
if (tabbarButtonIndex == 2) {
// [self bringSubviewToFront:child];
child.height = 55;
child.y = -6;
}
tabbarButtonIndex++;
}
}
}
-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
BOOL result = [super pointInside:point withEvent:event];
if (result) {
return result;
}
if (self.plusBtn.x<point.x&&(self.plusBtn.x+self.plusBtn.width)>point.x&&self.plusBtn.y<point.y&&(self.plusBtn.y+self.plusBtn.height)>point.y ) {
return YES;
}
return NO;
}
@end
