xcode4.2

问题 Is anyone able to provide a definitive guide to the labelled icons in Xcode 4's debug area variable list? Here's a list of what I have at the moment. I can't figure out what they mean: It's not intuitive. For example, I have BOOL and NSMutableString objects, both with green 'i' icons. I haven't been able to find a list of what these icons mean, either in Xcode's documentation, or online. Thank-you, Steve. 回答1: I haven't been able to find a guide for these values, but they appear to be: L =

问题 I am new to iPhone App development (I am using XCode 4.2) and I was wondering if there is a way to translate all the strings , caption etc ... internally without having to translate them one by one . an idea I have in mind is to use NSUserDefaults to save the language as a global variable and translate everything accordingly another option is to make a look up table (is it even possible in Objective-C ?) Thanks 回答1: You can use NSLocalizedString(@"<#key#>", @"<#comment#>") and one file (named

问题 I have followed installation steps from the core plot in Application url. As defined in subject, core plot version is 1.0 which was tried with iPhone 5.0 Simulator in Xcode 4.2. what I did : 1) I've simply copy one of the CorePlot Example (i.e : CPTTestApp-iphone) from CorePlot_1.0/Source/Example Folder to my Xcode project workspace. 2) Drag&Drop framework folder from CorePlot_1.0/Source/ in my example app. 3) Changed Header Search Path and User Header Search Path with string "${PROJECT_DIR}

问题 I added a gesture to a label and when tapped i would like to trigger showlbl that will take int as an argument, however I'm getting a compiler error for: UITapGestureRecognizer *gestlbl0 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showlbl:1) ]; thanks! 回答1: It doesn't work that way. You can only specify the name of the selector, i.e. the name of the method that is to be called. The form of the selector (the number of arguments) is fixed and defined by the class that

问题 This question already has answers here : How to “add existing frameworks” in Xcode 4? (9 answers) Closed 5 years ago . Newbie here, trying to add the CHDataStructures library to a calculator project I'm working on. I did as suggested in the accepted answer at Linking a static library to an iOS project in XCode 4 and have ended up with this: Unfortunately, I get a 'CHDataStructures.h' file not found error when I try to add the header to classes in my project ( Calculator.m , for example). Any

问题 I would like to set the bounds for my table view (in a UITableViewController) so that it has a smaller width than the screen width (so that a background image can be seen behind the table view). I use the following line of code in my viewDidLoad method: [[self tableView] setBounds:CGRectMake(10,44, 300, 460)]; However, this line is not working and the tableview still takes up the whole width of the page. How can I make this work? Also, as long as I'm on the subject of customizing table views,

问题 I have created NSUserDefaults object, it will be updated with the new value whenever an even will occur. What I want is (as per my application requirement) that object should be cleared every 7 days. Like if 1st time that NSUserDefaults are updated today so exact after 7 days, a method should work and clear the NSUserDefaults. So that, new values would be assigned from then on for the next 7 days. Is it possible in objective-c? 回答1: What you can do is store an NSDate object. Then every time

问题 i want to implement handwriting recognition in my project for example when user writes A on the screen, then screen should display A , i had searched on google and so far i have found, tesseract OCR , but i am not getting what is tesseract OCR and how to implement this in my project can someone give demo tutorial of tesseract OCR and i don't know whether tesseract OCR is free or paid ... can someone give idea about tesseract OCR !! 回答1: try this one. http://tinsuke.wordpress.com/2011/11/01

问题 I've seen Apple demoing the new simulator features in iOS5, and apart from static locations, they showed off the ability to simulate location movement on an application running on the Simulator. I have successfully simulated single locations using GPX files, but I can't find any way of simulating movement. Did this feature get dropped at the last minute or am I missing something obvious? 回答1: The <wpt> type supports a <time> element which can be used to simulate movement. Xcode will just go

问题 I've seen Apple demoing the new simulator features in iOS5, and apart from static locations, they showed off the ability to simulate location movement on an application running on the Simulator. I have successfully simulated single locations using GPX files, but I can't find any way of simulating movement. Did this feature get dropped at the last minute or am I missing something obvious? 回答1: The <wpt> type supports a <time> element which can be used to simulate movement. Xcode will just go