ipad

问题 I'm using jQuery to develop webapps on the iPad and it seems the jQuery live event doesn't work... This was the case when I was working with the SDK iPad emulator and now that I have the iPad to work on, its still the same (I was hoping it was an emulator fault). Running the same code on a web kit build works fine. I'm just wondering if anyone else is having this problem? If there is a fix? or if it's me? Hoping someone can help as my code is becoming really bloated having to rebind clicks

问题 I'm using jQuery to develop webapps on the iPad and it seems the jQuery live event doesn't work... This was the case when I was working with the SDK iPad emulator and now that I have the iPad to work on, its still the same (I was hoping it was an emulator fault). Running the same code on a web kit build works fine. I'm just wondering if anyone else is having this problem? If there is a fix? or if it's me? Hoping someone can help as my code is becoming really bloated having to rebind clicks

问题 i have read a lot on this argument, i have tested this example that works: source code example. but this doesn't use storyboards (i don't know if this is the reason that make my project not working) i have made another project using storyboard, the same sequence of instruction doesn't work... -(void)viewDidAppear:(BOOL)animated{ NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0]; [firstController.tableView selectRowAtIndexPath:indexPath animated:NO scrollPosition

问题 I'm running Build 4A304a and for the life of me I can't find it in Xcode or any reference to it on the internets. any help would be greatly appreciated. 回答1: Right-click the target and click Duplicate. Choose to Duplicate and Transition to iPad. 回答2: Select your project in the Project Navigator, click your target, and then click the Summary tab. You can switch your iOS Application Target there to Universal. Here's a screenshot: 来源： https://stackoverflow.com/questions/5355958/where-is-upgrade

问题 I'm trying to do a simple drawing app for the iPad where you can draw on a picture, and I'm using CGContext stuff to do it but the way I originally planned on handling erasing was to just draw over stuff with white...except I just realized today that it doesn't work when you're drawing onto another image because then when you "erase" you'll also "erase" the background image as well. Is there any way to support actual erasing? Thanks! 回答1: Display the user's drawing in a layer above the image.

问题 How to implement the Oauth in iPad application? How does AFOAuth2Client manages refreshing token mechanism in oauth 2.0? Is there any method to implement it inside the class or do we have to implement it in our own way? How to check the token is expired or not? 回答1: The way that I have solved this is to wrap all my requests with a code block which will refresh the access token if needed e.g. Add some typedefs for success and failure blocks: typedef void (^YFRailsSaasApiClientSuccess)

问题 I have a navigation controller. I first pushed a VC, then presented 12 modals VC's. Now I want to pop to root viewController. How can I do that? Please help me out. 回答1: You will need to dismiss the 12 modal views that you have presented. popViewController or popToRootViewController will not work. 回答2: Dismiss your modal views to get to the root view. 回答3: Sorry, I am not sure I do understand your question correctly. But is UINavigationController's - (NSArray *)popToRootViewControllerAnimated

问题 the for loop looks like this , which i have written in view did load, so it takes more time to load this page. for (int i=3; i<[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]count]; i++) { if (i%3==0) { x=0; y++; } view=[[UIView alloc]initWithFrame:CGRectMake((x*250)+5, (y*404)+6, 244, 400)]; [view setBackgroundColor:[UIColor whiteColor]]; view.layer.borderColor=[[UIColor whiteColor]CGColor]; view.layer.borderWidth=1.0; view.layer.cornerRadius = 5; view.layer

问题 I am using AVAudioRecorder for recording audio in .caf format. When the user will resume this recording the new recording must append with the old recording. So how can i combine two .caf audio files. 回答1: You can do it using ExtAudioFileService. In ios developer library they had provided two examples to convert one audio file to another format. In these they are opening one audio file for reading and another file for writing (converted audio). You can change or updated code to read from two

问题 Given a CGMutablePathRef how do I draw a UIImage in it? I know that you can draw it like the following: UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); [scaledImage drawAtPoint:CGPointMake(0, 0)]; CGContextRestoreGState(context); but I am not sure if I have a path (which is a rectangle with rounded corner) how do I add an image in it? 回答1: When you say "draw within a CGMutablePath" I have to assume you mean " clip to a CGMutablePath." In that