自定义UITabBarController简单方法

最新推荐文章于 2018-09-02 16:58:40 发布

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最新推荐文章于 2018-09-02 16:58:40 发布

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自定义了UITabBarController下面Tab Bar的图片，图片可实现两态。

做一个继承UITabBarController的类。用三张图片覆盖Tab即可。

@interface TabBarViewController : UITabBarController{
    UIImageView *bottomselebtn1;
    UIImageView *bottomselebtn2;
    UIImageView *bottomselebtn3;
}

- (void)viewDidLoad
{
    bottomselebtn1=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"dpbotbtn1b.png"]];
    bottomselebtn1.frame=CGRectMake(0, 430, 107, 51);
    [self.view addSubview:bottomselebtn1];
    
    bottomselebtn2=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"dpbotbtn2a.png"]];
    bottomselebtn2.frame=CGRectMake(107, 430, 107, 51);
    [self.view addSubview:bottomselebtn2];
    
    bottomselebtn3=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"dpbotbtn3a.png"]];
    bottomselebtn3.frame=CGRectMake(214, 430, 107, 51);
    [self.view addSubview:bottomselebtn3];

    
    
//    [[self tabBar] setHidden:YES];
    [super viewDidLoad];
	// Do any additional setup after loading the view.
}

用参数tag来判断按下了哪个Tab

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
    NSLog(@"Selected is %d",item.tag);
    if (item.tag==3) {
        bottomselebtn1.image=[UIImage imageNamed:@"dpbotbtn1a.png"];
        bottomselebtn2.image=[UIImage imageNamed:@"dpbotbtn2a.png"];
        bottomselebtn3.image=[UIImage imageNamed:@"dpbotbtn3b.png"];
    }else if (item.tag==2){
        bottomselebtn1.image=[UIImage imageNamed:@"dpbotbtn1a.png"];
        bottomselebtn2.image=[UIImage imageNamed:@"dpbotbtn2b.png"];
        bottomselebtn3.image=[UIImage imageNamed:@"dpbotbtn3a.png"];
    }else if (item.tag==1){
        bottomselebtn1.image=[UIImage imageNamed:@"dpbotbtn1b.png"];
        bottomselebtn2.image=[UIImage imageNamed:@"dpbotbtn2a.png"];
        bottomselebtn3.image=[UIImage imageNamed:@"dpbotbtn3a.png"];
    }

}