自定义UITabBarController

#import <UIKit/UIKit.h>

@interface iPadCustom_TabBar : UITabBarController{

    UIImageView *backgroud_image;

    UIImageView *select_image;

    UIImageView *tab_bar_bg;

    NSMutableArray *tab_text;

    NSMutableArray *tab_btn;

    UIButton *btn;

}

-(void)init_tab;

-(void)when_tabbar_is_unselected;

-(void)add_custom_tabbar_elements;

-(void)when_tabbar_is_selected:(int)tabID;

@end

 

#import "iPadCustom_TabBar.h"

#import "AppDefination.h"

@implementation iPadCustom_TabBar

- (void)init_tab

{

    backgroud_image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"leftCheck.png"]];

    select_image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"leftUncheck.png"]];

    

    tab_bar_bg = [[UIImageView alloc] initWithImage:[UIImageimageNamed:@"images/[e-mail]"]];

    

//    tab_text = [[NSMutableArray alloc] initWithObjects:@"默认",@"个人",@"搜索",@"更多", nil];

}

-(void)viewDidAppear:(BOOL)animated{

    

    [super viewWillAppear:animated];

    [self init_tab];

    [self when_tabbar_is_unselected];

    [self add_custom_tabbar_elements];

}

-(void)when_tabbar_is_unselected{

    

    for (UIView *view in self.view.subviews) {

        if ([view isKindOfClass:[UITabBar class]]) {

            view.hidden = YES;

            break;

        }

    }

}

-(void)add_custom_tabbar_elements{

    

    int tab_num = 4;

    int i;

    

    UIImageView *tabbar_bg1 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 85, 1024)];

//    [self addSubview:theImageView];

    [tabbar_bg1 setImage:tab_bar_bg.image];

    [self.view addSubview:tabbar_bg1];

    

    tab_btn = [[NSMutableArray alloc] initWithCapacity:0];

    for (i=0; i < tab_num; i++) 

    {

        btn = [UIButton buttonWithType:UIButtonTypeCustom];

        [btn setFrame:CGRectMake(5, i*100+100, 75, 75)];

        

        [btn setBackgroundImage:backgroud_image.image forState:UIControlStateNormal];

        

        [btn setBackgroundImage:select_image.image forState:UIControlStateSelected];

        

//        [btn setTitle:[tab_text objectAtIndex:i] forState:UIControlStateNormal];

        [btn.titleLabel setFont:[UIFont boldSystemFontOfSize:15.0]];

        if (i == 0) {

            [btn setSelected:YES];

        }

        [btn setTag:i];

        [tab_btn addObject:btn];

        [self.view addSubview:btn];

        

        [btn addTarget:self action:@selector(button_clicked_tag:)forControlEvents:UIControlEventTouchUpInside];

        [btn release];

    }

}

-(void)button_clicked_tag:(id)sender{

    int tagNum = [sender tag];

    [self when_tabbar_is_selected:tagNum];

}

-(void)when_tabbar_is_selected:(int)tabID{

    

    switch (tabID) {

        case 0:

            [[tab_btn objectAtIndex:0] setSelected:true];

            [[tab_btn objectAtIndex:1] setSelected:false];

            [[tab_btn objectAtIndex:2] setSelected:false];

            [[tab_btn objectAtIndex:3] setSelected:false];

            break;

        case 1:

            [[tab_btn objectAtIndex:0] setSelected:false];

            [[tab_btn objectAtIndex:1] setSelected:true];

            [[tab_btn objectAtIndex:2] setSelected:false];

            [[tab_btn objectAtIndex:3] setSelected:false];

            break;

        case 2:

            [[tab_btn objectAtIndex:0] setSelected:false];

            [[tab_btn objectAtIndex:1] setSelected:false];

            [[tab_btn objectAtIndex:2] setSelected:true];

            [[tab_btn objectAtIndex:3] setSelected:false];

            break;

        case 3:

            [[tab_btn objectAtIndex:0] setSelected:false];

            [[tab_btn objectAtIndex:1] setSelected:false];

            [[tab_btn objectAtIndex:2] setSelected:false];

            [[tab_btn objectAtIndex:3] setSelected:true];

            break;

    }

    

    self.selectedIndex = tabID;

}

-(void)dealloc{

    [backgroud_image release];

    [select_image release];

    [tab_bar_bg release];

//    [tab_text release];

    [tab_btn release];

    [super dealloc];

}

方法二：

 

#import <UIKit/UIKit.h>

#define NotificationUpdateBadgeValue    @"NotificationUpdateBadgeValue"

@interface iPad_CustomTabBarController : UITabBarController{

 NSMutableArray *buttons;

    NSArray *buttonNormalImages;

    NSArray *buttonSelectedImages;

    

int currentSelectedIndex;

}

@property (nonatomic, assign) int currentSelectedIndex;

@property (nonatomic, retain) NSArray *buttonNormalImages;

@property (nonatomic, retain) NSArray *buttonSelectedImages;

@property (nonatomic,retain) NSMutableArray *buttons;

- (void)hideRealTabBar;

- (void)customTabBar;

- (void)selectedTab:(UIButton *)button;

- (void) checkAndAddBadge:(NSNotification *) notification;

@end

 

#import "iPad_CustomTabBarController.h"

#import "UIBadgeView.h"

#import "AppDefination.h"

@implementation iPad_CustomTabBarController

@synthesize currentSelectedIndex;

@synthesize buttons;

@synthesize buttonSelectedImages;

@synthesize buttonNormalImages;

- (void)viewDidAppear:(BOOL)animated{

    self.view.backgroundColor = [UIColor clearColor];

    [self hideRealTabBar];

[self customTabBar];

    

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(checkAndAddBadge:)name: NotificationUpdateBadgeValue object:nil];

    

    [super viewDidAppear:animated];

}

- (void) hideRealTabBar {

    

    [UIView beginAnimations:nil context:NULL];

    [UIView setAnimationDuration:0.0];

    

    for(UIView *view in self.view.subviews)

    {

        if([view isKindOfClass:[UITabBar class]])

        {

            view.hidden = YES;

        } else {

            [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 1024)];

            NSLog(@"x=%f",view.frame.origin.x);

            NSLog(@"x=%f",view.frame.origin.y);

            NSLog(@"x=%f",view.frame.size.width);

        }

    }

    

    [UIView commitAnimations];

    

}

- (void)customTabBar{

UIImageView *tabBarBackGroundView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0,ipadTabBarWidth, 1024)];

    tabBarBackGroundView.image = [UIImage imageNamed:@"images/[e-mail]"];

tabBarBackGroundView.backgroundColor = [UIColor clearColor];

    [self.view addSubview:tabBarBackGroundView];

//创建按钮

int viewCount = self.viewControllers.count > 5 ? 5 : self.viewControllers.count;

self.buttons = [NSMutableArray arrayWithCapacity:viewCount];

double _width = 60;

    // NSLog(@"%d",viewCount);

double _height = 50;

for (int i = 0; i < viewCount; i++) {

// UIViewController *v = [self.viewControllers objectAtIndex:i];

UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];

btn.frame = CGRectMake(10, i*(_height+30)+30, _width, _height);

        [btn addTarget:self action:@selector(selectedTab:)forControlEvents:UIControlEventTouchDown];

btn.tag = i;

        // NSLog(@"%@",v.tabBarItem.image);

        UIImage *image = [buttonNormalImages objectAtIndex:i];

[btn setBackgroundImage:image forState:UIControlStateNormal];

        

        image = [buttonSelectedImages objectAtIndex:i];

        [btn setBackgroundImage:image forState:UIControlStateSelected];

        [btn setBackgroundImage:image forState:UIControlStateHighlighted];

        

[self.buttons addObject:btn];

[self.view addSubview:btn];       

}

    

[tabBarBackGroundView release];

[self selectedTab:[self.buttons objectAtIndex:0]];

}

- (void)selectedTab:(UIButton *)button{

    

    UIImage *activebg = [buttonSelectedImages objectAtIndex:button.tag];

    [button setBackgroundImage:activebg forState:UIControlStateNormal];

    

    NSLog(@"index=%d",self.currentSelectedIndex);

    NSLog(@"button.tag=%d",button.tag);

    if (self.currentSelectedIndex == button.tag){

//        [[self.viewControllers objectAtIndex:button.tag] popToRootViewControllerAnimated:YES];

        button.selected = YES;

        return;

    }

    UIImage *normalbg = [buttonNormalImages objectAtIndex:self.currentSelectedIndex];

    UIButton *btn = [self.buttons objectAtIndex:self.currentSelectedIndex];

    [btn setBackgroundImage:normalbg forState:UIControlStateNormal];

    btn.selected = NO;

    

self.currentSelectedIndex = button.tag;

self.selectedIndex = self.currentSelectedIndex;

}

- (void) checkAndAddBadge:(NSNotification *) notification{

    

    NSDictionary *info = [notification userInfo];

    NSString *badgeValue = [info objectForKey:@"badgeValue"] ;

    if (badgeValue == nil) {

        //do nothing

        return;

    }

    int barIndex = [[info objectForKey:@"barIndex"] intValue] ;

    UIButton *btn = [self.buttons objectAtIndex:barIndex];

    UIBadgeView *bview = (UIBadgeView *)[btn viewWithTag:(barIndex + 10)];

    

    if (bview != nil) {

        [bview removeFromSuperview];

    }

    

    if ([badgeValue isEqualToString:@""] || [badgeValue isEqualToString:@"0"]) {

        return;

    }

    

    CGSize numberSize = [badgeValue sizeWithFont: [UIFont boldSystemFontOfSize:14]];

 

 

UIBadgeView *badgeView = [[UIBadgeView alloc] initWithFrame:CGRectMake(btn.bounds.size.width - numberSize.width - 14, 0, numberSize.width + 14, 21)];

badgeView.badgeString = badgeValue;

    

badgeView.badgeColor = [UIColor redColor];

badgeView.tag = barIndex + 10;

[btn addSubview:badgeView];

[badgeView release];

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    return YES;

}

- (void) dealloc{

[buttons release];

    [buttonNormalImages release];

    [buttonSelectedImages release];

[super dealloc];

}

@end

@end

来自http://blog.sina.com.cn/s/blog_4cd8dd130100uec2.html