自定义Tabbar #iOS

我们在做项目的过程中，会经常需要自定义tabbar。我今天刚好整理了一下，把自己的想法写出来和大家分享一下。自定义Tabbar 首先我们新建一个继承于UITabBar的子类EzTabBar 

EzTabBar.h文件内容

import “EzTabBar.h”

#define TABBAR_INSET 12

@implementation EzTabBar

-(void)initialize {
UIImageView * barv = [[UIImageView alloc]init];
self.barImage = barv;
self.barImage.frame = CGRectMake(TABBAR_INSET, 0, SCREENWIDTH / 4.0f - (2 * TABBAR_INSET), 3);

self.barImage.backgroundColor = COLOR(210,0,12,1);
[self addSubview:self.barImage];
}

-(id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
[self initialize];
}
return self;
}

-(id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
[self initialize];
}
return self;
}

-(CGSize)sizeThatFits:(CGSize)size
{
CGSize sizeThatFits = [super sizeThatFits:size];
sizeThatFits.height = 44;

return sizeThatFits;
}

-(void)layoutSubviews {
[super layoutSubviews];
[self bringSubviewToFront:self.barImage];
}

-(void)setSelectedItem:(UITabBarItem *)selectedItem {
[super setSelectedItem:selectedItem];
NSInteger indexOfSelectedItem = [[self items] indexOfObject:selectedItem];
[UIView animateWithDuration:.3 delay:.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.barImage.frame = CGRectMake(TABBAR_INSET + indexOfSelectedItem*(SCREENWIDTH / 4.0f), 0, self.barImage.frame.size.width, 3);
} completion:^(BOOL finished){
}];
}

@end

自定义TabbarViewController

import “EzTabBarController.h”

@interface EzTabBarController ()

@end

@implementation EzTabBarController

(id)initWithNibName:(NSString )nibNameOrNil bundle:(NSBundle )nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

(void)viewDidLoad
{
[super viewDidLoad];

UITabBar *tabBar = self.tabBar;
UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];
UITabBarItem *tabBarItem4 = [tabBar.items objectAtIndex:3];

tabBarItem1.image = [[UIImage imageNamed:@”TabBarIconHome”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tabBarItem1.selectedImage = [[UIImage imageNamed:@”TabBarIconHomeSelected”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

tabBarItem2.image = [[UIImage imageNamed:@”TabBarIconWardrobe”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tabBarItem2.selectedImage = [[UIImage imageNamed:@”TabBarIconWardrobeSelected”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

tabBarItem3.image = [[UIImage imageNamed:@”TabBarIconMyShop”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tabBarItem3.selectedImage = [[UIImage imageNamed:@”TabBarIconMyShopSelected”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

tabBarItem4.image = [[UIImage imageNamed:@”TabBarIconPersonal”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tabBarItem4.selectedImage = [[UIImage imageNamed:@”TabBarIconPersonalSelected”] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.view.backgroundColor = [UIColor whiteColor];

}

-(void)viewDidAppear:(BOOL)animated{
[super viewDidAppear:animated];
}

#pragma mark - Segues

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
[super prepareForSegue:segue sender:sender];
if ([segue.identifier isEqualToString:@”SwitchToMyShopSegue”]) {
[segue.destinationViewController setUserId:@”0”];
} else if ([segue.identifier isEqualToString:@”BaseOptionsSegue”]) {
((BaseOptionsForCreationViewController*)segue.destinationViewController).isFromFloatingButton = YES;
}
}

@end