My app draws a开发者_JAVA百科 timer (with detail to .1 seconds), for which I am currently using a NSTime which fires every .1 seconds. This feels like an absolutely terrible idea, but I\'m not sure ho
I\'m trying to write a simple painting app for iOS as a first non-trivial project. Basically, on every touch event, I need to open a graphics context on the bitmap, draw something over top of where th
I have a simple slider and text field below. A text field display the slider\'s value as the slider is dragged across the slider bar. Is there a way to make the text field to continue displaying value
The Apple Pages and Numbers apps have开发者_运维知识库 popovers (for \"tools\" etc) that close with a lovely fade out effect when you rotate the device. I\'m trying to recreate this, but my popovers a
I\'m using UIDocumentInteractionController class to preview documents. Is it possible to change the done button for closing the preview with another one? For example I would like to set a different ti
In EGOTableViewPullRefresh Demo I see he refer to property self.view and self.tableView in EGORefreshTableHeaderView *view = [[EGORefreshTa开发者_如何学GobleHeaderView alloc] initWithFrame:CGRectMake(
Is it possible to use CAKeyframeAnimation to move something along a path and at the same time use some sort of eas开发者_Go百科ing so there is acceleration or deceleration?I know there is timingFuncti
When overriding the header/footer of a (group styled) table view, what colour should be used for the header and footer fonts to ensure the header and footer fonts are consistent with the standard head
I was trying to draw some text with开发者_JAVA百科 a downloaded font. I looked at API documentation and searched the Web. I found a solution, but the problem is that it\'s applicable to only the CoreG
From wikipedia explanation about thread-safety,thread safe codes can be run in multithreads. For iOS 3.x, UIKit is not thread safety, since 4.0, UIKIt is thread safet开发者_StackOverflow社区y.
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