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我目前有个UITabBar，改了它的高度。但是我切换页签后，这个UITabBar样式又变掉了。我感觉是UITabBarItem的高度把整个页签高度撑开了。
不知道如何修改UITabBarItem，最好是能去掉文字占用的空间，因为我只要图片，不要文字的。能不能把文字移除。
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沙发 ： 发表于: 2014-04-11 09:58 发自: Web Page 只看该作者 小 中 大
如果不是系统样式的tabbar，建议你还是自定义一个tabbar
给你一个自定义tabbar的demo，希望可以帮到你
#import "MainTabBarController.h"
#import "HomePageViewController.h"
#import "ScanningViewController.h"
#import "NearbyViewController.h"
#import "RemindViewController.h"
#import "DeviceManager.h"
@interface MainTabBarController ()
{
UIView * _tabBarView;
}
@end
@implementation MainTabBarController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self creatCustomTabBarView];
[self creatControllers];
}
#define NormalImages [NSArray arrayWithObjects:@"底部首页按钮",@"底部扫描按钮",@"底部附近按钮",@"底部提醒按钮", nil]
#define SelectedImages [NSArray arrayWithObjects:@"底部首页按钮高亮",@"底部扫描按钮高亮",@"底部附近按钮高亮",@"底部提醒按钮高亮", nil]
-(void)creatCustomTabBarView{
self.tabBar.hidden = YES;
_tabBarView = [[UIView alloc] initWithFrame:CGRectMake(0, [DeviceManager currentDeviceScreenHeight] - 44, 320, 44)];
for (int i = 0; i< 4; i++) {
UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
if (i == 0) {
[button setBackgroundImage:[UIImage imageNamed:[SelectedImages objectAtIndex:i]] forState:UIControlStateNormal];
}else{
[button setBackgroundImage:[UIImage imageNamed:[NormalImages objectAtIndex:i]] forState:UIControlStateNormal];
}
[button setFrame:CGRectMake(0+80*i, 0, 80, 44)];
button.tag = 100 + i;
[button addTarget:self action:@selector(clickedButton:) forControlEvents:UIControlEventTouchDown];
[_tabBarView addSubview:button];
}
[self.view addSubview:_tabBarView];
}
-(void)creatControllers{
HomePageViewController * hpVC = [[HomePageViewController alloc] init];
ScanningViewController * sVC = [[ScanningViewController alloc] init];
NearbyViewController * nVC = [[NearbyViewController alloc] init];
RemindViewController * rVC = [[RemindViewController alloc] init];
NSArray * viewControllers = [NSArray arrayWithObjects:hpVC,sVC,nVC,rVC, nil];
NSMutableArray * controllers = [[NSMutableArray alloc] init];
for (int i = 0; i< 4; i++) {
UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:[viewControllers objectAtIndex:i]];
[controllers addObject:nav];
}
self.viewControllers = controllers;
}
-(void)clickedButton:(UIButton *)button{
for (int i = 0; i< 4; i++) {
UIButton * btn = (UIButton *)[_tabBarView viewWithTag:(100 + i)];
if (button.tag%100 == i) {
[btn setBackgroundImage:[UIImage imageNamed:[SelectedImages objectAtIndex:i]] forState:UIControlStateNormal];
self.selectedIndex = i;
}else{
[btn setBackgroundImage:[UIImage imageNamed:[NormalImages objectAtIndex:i]] forState:UIControlStateNormal];
}
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
@end |