uiscrollview

问题 I have a scroll view. On the scroll view I have added many necessary UILabels and UIButtons etcs. Now I want to add MORE labels and buttons but I have no room on the interface of the view to add them, otherwise they will overlap the other elements. How do I add more UI elements so that they can be interacted with when the user scrolls? I was thinking if I hold the UIelement over the bottom of the scroll view, the scroll would "scroll down" and present me with more space. 回答1: The key thing

问题 I have a UITableView which has been added inside a UIScrollView as part of a view controller which adheres to a part of the mockup shown below:- As you can see in the mockup, the UITableView is situated in between the label 'Featured Businesses' label and a view containing the green and pink colored subviews Also, if observed, each cell in the table view has a button which on clicking toggles a card view containing a list of particulars. Height of the card view varies depending on the number

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 have an app based on Apple's PageControl sample. The first time the view loads, the scroll view is loaded with page 0 and page 1. Whenever a scroll is initiated, the scrollViewDidScroll method should get called by UIKit correct? When initiating a scroll from page 0 to page 1, the app should load page-1, page and page+1, (to prevent flashes during scrolling). My app seems to call scrollViewDidScroll 19 times and my loadScrollViewWithPage: method 19 times each with page 0 and page 1, before

问题 I'm creating a simple "Create your Profile" with many fields. My view is not scrolling despite the content being larger than the size of the scroll view. I think part of the issue is the relationship between the contents inside the contentView. I wanted the cells inside of the table view to be dynamic so that I can add more information later and the scrolling would still preform. I set the scrollView delegate and tableView delegate to self in viewDidLoad() I've looked at other answers and

问题 I'm drawing a graph on a UIView , which is contained by a UIScrollView so that the user can scroll horizontally to look around the entire graph. Now I want to zoom the graph when a user pinches in with two fingers, but instead of zooming in a view with the same rate for X and Y direction, I want to zoom only in the X direction by changing the X scale, without changing the Y scale. I think I have to catch the pinch in/out gesture and redraw the graph, overriding the default zooming behavior.

问题 I'm drawing a graph on a UIView , which is contained by a UIScrollView so that the user can scroll horizontally to look around the entire graph. Now I want to zoom the graph when a user pinches in with two fingers, but instead of zooming in a view with the same rate for X and Y direction, I want to zoom only in the X direction by changing the X scale, without changing the Y scale. I think I have to catch the pinch in/out gesture and redraw the graph, overriding the default zooming behavior.

问题 Is there some sample code, or an easy way, to implement an application with as its first view something like Springboard? What I am looking for is just a view with basic icons which after a tab on an icon tells the view-controller to push the view associated with the selected icon. This in itself is not that difficult off-course (just putting images on a view), but is there an easy way to implement all the extra functionality as well (as e.g. moving the icons around (start 'vibrating' when

问题 I'd like to be able to create my own container subclasses of UIView which can react first to touches, before their subviews. This is tricky because normally a subview receives touch events (via touchesBegan: etc) before superviews. How does UIScrollView reverse this? To be clear, I am not asking how UIScrollView behaves . I understand what it does, and how you would normally use it. I'm asking about how I could cleanly implement my own version of this -- not because I want to, but because I'm