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iPhone:How can I store UIImage using NSUserDefaults?

I开发者_JAVA技巧 cannot save image using nsuserdefaults and crash my app and I also used custom class UserInfo which used[详细]

2023-04-09 14:32 分类：问答
Prevent UIScrollView from cancelling touchesMoved: of subview?

I have a UIScrollView. On top of it I allow the user to add a DraggableView (a subclass of UIImageView) by applying a long press gesture to the UIScrollView.[详细]

2023-04-09 08:51 分类：问答
How to subclass UIApplication in Monotouch?

EDIT: A couple of years later, things are easier. It is now possible to omit the Register() attributes, both on the application and the app delegate and instead use:[详细]

2023-04-09 07:16 分类：问答
How to hide number button on UIKeyboard?

Is there a way to hide number button and space button? Mantaining UIKeyboard transparency?? I need a keyboard with only letters, backspace and NEXT button, not开发者_高级运维hing else.[详细]

2023-04-09 06:46 分类：问答
Device orientation at launch

I\'ve read ALL of the posts on this topic, but still can\'t figure this one out. I add a VC to the window in applicationDidFinishLaunching. The VC contains a UIImageView.[详细]

2023-04-08 22:33 分类：问答
programmatically add a UIButton to rootview, what am I doing wrong?

I have freshly setup app, just with a window an a root view (from the iOS single view application template, provided by XCode).[详细]

2023-04-08 11:04 分类：问答
How to customize UISegmentedControl font color and UIToolbar gradient?

It seems Apple\'s UIToolbar and some of the controls you can place on it, such as UISegmentedControl, allow very limited customization. For exam开发者_运维知识库ple, we want our toolbar to looks somet[详细]

2023-04-08 05:01 分类：问答
Dynamic Alert View Text Body

Can you edit the contents of an UIAlertView once it has been shown? I would like 开发者_运维百科to be able to update the text in it without having to dismiss and show a new one every time.[详细]

2023-04-07 12:10 分类：问答
Assigning RootViewController to UIViewController gives warning - why?

I want to access the RootViewController of my App in one of its classes in order to present a modal view controller. I do this by getting the ApplicationDelegate and asking it for the RootViewControll[详细]

2023-04-07 01:53 分类：问答
How can I prevent clipped portions of subviews from still taking touch events?

I\'m currently clipping some UIViews w开发者_StackOverflow社区ithin a parent view like in the illustration below:[详细]

2023-04-07 01:22 分类：问答