uitabbar

问题 I am newbie for iOS development. What I have done so far is as below. Created New Project Removed all controller and added View Controller. Dragged ScrollView in ViewController Dragged Tab Bar in ScrollView Dragged 7 Tab Bar Item in Tab Bar . Now when I execute this project, I have all 7 tabs on screen which is not looking good. So what I am planning is display only 4 tab at first and if user scroll it horizontally, user can scroll and see rest tabs. So, what I want to achieve is

问题 I am newbie for iOS development. What I have done so far is as below. Created New Project Removed all controller and added View Controller. Dragged ScrollView in ViewController Dragged Tab Bar in ScrollView Dragged 7 Tab Bar Item in Tab Bar . Now when I execute this project, I have all 7 tabs on screen which is not looking good. So what I am planning is display only 4 tab at first and if user scroll it horizontally, user can scroll and see rest tabs. So, what I want to achieve is

问题 I would like to know how do we detect when the selected TabBar Item or Index is changed when the changes is done programmatically ? self.tabBarController.selectedIndex = 1; This two delegate function only detect changes when the tabBar Item was selected by user. It does not fire when the changes to the selectedIndex was done programmatically. func tabBarController(tabBarController: UITabBarController, didSelectViewController viewController: UIViewController) { println("tabBarController

问题 I set a custom indicator image for my UITabBar like this UIImage *tabBarSelectedImage = [[UIImage imageNamed:@"tabBar_selected"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)]; [[UITabBar appearance] setSelectionIndicatorImage:tabBarSelectedImage]; and get a 4px padding around my tabBarSelectedImage . Is it possible to set that padding to 0px? So that my tabBarSelectedImage fills the entire space and no border is visible? 回答1: Here is the solution of your problem... I was not

问题 I've created a tab bar application. I have four tabs; on the selected tab, I need to set the color red for tab title. How can i do that? Thanks in advance. 回答1: If I understand your question correctly, you want to customize the color of the text on the UITabBarItem s. Unfortunately, it's really not that flexible. If you're intent on doing this (which, unless you've carefully considered the design with the help of a professional, I recommend against!), you'll have to do some really frightening

问题 Since iOS 5 Apple provided an API to customise the UITabBarItems in the UITabBar object. I am refering specifically to the following selector: setFinishedSelectedImage:withFinishedUnselectedImage: It all works great for regular buttons but I can't seem to customise the "More" button to match the style of the other ones. This is what I am doing: tabBarController.viewControllers = tabBarControllerArray; tabBarController.moreNavigationController.navigationBar.tintColor = [UIColor blackColor];

问题 I'm trying to change the blue colour from icons in the more menu. I tried almost everything I found on Stack Overflow, but nothing worked. I tried this solution, but is not working. The only option I found to change the colour was [[UIView appearance] setTintColor:[UIColor redColor]]; but it changes all colours in the app. The code is just a new project with storyboard, so I just added the views on the storyboard. Thanks for helping. Edit: After I added the code: UIImage *myImage = [[UIImage

问题 Within my iPhone application I have a common tab bar with three tabs that is presented from several views after pressing a button. The approach I followed was the workflow of Tweetie application, described in Robert Conn post. Note that the main controller is a navigation controller; the tab bar is placed in a view controller's NIB file of the navigation stack, and the effect of switching between tabs is handled in a delegate didSelectItem method. @interface GameTabBarController :

问题 I'm trying to create a transition effect on a UITabBarController somewhat similar to the Facebook app. I managed to get a "scrolling effect" working on tab switch, but I can't seem to figure out how to cross dissolve (or it doesn't work at least). Here's my current code: import UIKit class ScrollingTabBarControllerDelegate: NSObject, UITabBarControllerDelegate { func tabBarController(_ tabBarController: UITabBarController, animationControllerForTransitionFrom fromVC: UIViewController, to toVC

问题 I want to set custom images to the UIBarButtonItem but it only shows a rectangular box around and It doesn't show the actual image. func setupBrowserToolbar() { let browser = UIToolbar(frame: CGRect(x: 0, y: 20, width: self.view.frame.width, height: 30)) //配置返回组件 let path = NSBundle.mainBundle().pathForResource("back", ofType: "png") let urlstr = NSURL(fileURLWithPath: path!) let data = NSData(contentsOfURL: urlstr) let btnback = UIBarButtonItem(image: UIImage(data: data!), style: