隐藏Imageview

问题描述

我正在将uiimageview作为子视图添加到tabbarcontroller.view.当我推到其他viewcontroller标签栏时被隐藏，但是出现了添加到tabbarcontroller的图像.请帮助我删除图像视图，同时推动其他视图控制器.

I am adding uiimageview as a subview to tabbarcontroller.view. when i pushed to other viewcontroller tabbar gets hided but the image added to the tabbarcontroller is appearing.Please help me to remove the imageviewwhile pushing to other viewcontroller.

        imgV=[[UIImageView alloc]initWithFrame:CGRectMake(0, 428, 320, 48)];
    tabBarController = [[UITabBarController alloc] init];
    tabBarController.moreNavigationController.navigationBar.barStyle = UIBarStyleBlackOpaque; 
tabBarController.moreNavigationController.topViewController.view.backgroundColor=[UIColor clearColor];  
tabBarController.delegate=self;

//tabBarController.selectedIndex = 0;

// tabBarController.selectedIndex=0;

UIImage *img  = [UIImage imageNamed: @"home_selected.png"];
[imgV setImage:img];
//    [imgV setAlpha:0.5];

[self.tabBarController.view  addSubview:imgV];
[self.tabBarController.view  bringSubviewToFront:imgV];  

推送到其他ViewController时

When pushing to other viewcontroller

    -(void)logoutBtnTap
    {
appDelegate.enterLogout=YES;
for(UIImageView *view in[self.view subviews])

{
    [view removeFromSuperview];

}


Login_iPhone *controller=[[Login_iPhone alloc]init];
[controller setHidesBottomBarWhenPushed:YES];
[acctExec_iPhone.imgV removeFromSuperview];
acctExec_iPhone.imgV.hidden=YES;

[self.navigationController pushViewController:controller animated:YES];

[controller release];

}

推荐答案

是因为 hidesBottomBarWhenPushed = yes 意味着您的tabBarController隐藏了Tabbar而不是视图.

beacuse hidesBottomBarWhenPushed=yes is mean your tabBarController hide tabbar not view.

请注意，您需要在tabBar而不是view中添加到imageView.

Be a point of caution, you will need to add to imageView in tabBar not view.

也许当操作推或弹出对象控制器时，此方法发送到消息tabBarController.tabBar子视图.

maybe this method send to message tabBarController.tabBar subviews, when a operate push or pop object controller.

因此，您的imgV添加到了标签栏.例如这里.

so, your imgV add to tabbar. here for example.

UIImage *img  = [UIImage imageNamed: @"home_selected.png"];
[imgV setImage:img];

[self.tabBarController.tabBar addSubview:imgV];
[self.tabBarController.tabBar bringSubviewToFront:imgV];

但请小心tabBarController.tabBar高度-大小不同的tabBarController.view

but carefully tabBarController.tabBar height-size different tabBarController.view

因此，您应该设置框架的大小或坐标.

so, you frame should set size or coordinates.

这篇关于隐藏Imageview的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！