iphone-sdk-3.0

问题 I am having issues with the back button not showing up on the SettingsViewController. The navigation bar does show up when the view is pushed, but no back button. I am creating this inside a view controller, which is not a navigation controller. Any ideas or suggestions on what is actually going on here. - (void)viewDidLoad { self.title = @"Settings"; } - (IBAction)showSettingsModal:(id)sender { SettingsViewController *settingsViewController = [[SettingsViewController alloc] initWithNibName:@

问题 i used below code for getting contacts in to our application. this code is working fine in simulator in device allPeople getting Zero any thing i forgot that one pls help me if(addressBookCollection==nil) { addressBookCollection = ABAddressBookCreate(); } ABRecordRef source = ABAddressBookCopyDefaultSource(addressBookCollection); CFArrayRef allPeople= ABAddressBookCopyArrayOfAllPeopleInSourceWithSortOrdering (addressBookCollection,source,1); CFIndex nPeople = ABAddressBookGetPersonCount

问题 I have seen something here1 that states that I can remove these errors in xcode 3 by changing a method like -(IBAction) shakeShakeShake to -(IBAction) shakeShakeShake (id) sender I am using iphone sdk 3.0 and xcode 3.2.1 on snow leopard My errors are: Classes/MainViewController.m:156: warning: 'MainViewController' may not respond to '-shakeShakeShake' /Users/temp/Desktop/src/Count Down Timer (Utility App)/Classes/MainViewController.m:156:0 /Users/temp/Desktop/src/Count Down Timer (Utility App

问题 Is that possible pop up the UI which comes during the deletion process before deleting the app ? (A UI which has stars, no thanks, rate my app button). If no, can you tell me whether it is possible to create a screen and send the rating captured to iTunes connect ? 回答1: As other people said, your best option is to send people to the review/ratings page on iTunes. The best open source solution I found for this is Appirater. I use it in my apps and it works great + it generates many reviews.

问题 So a UISlider works great to change/choose values but it just doesn't look that great. What i'd like to implement is more like a horizontally spinning dial. I already have all the graphics I need and i've already implemented the scroll view to slide my image left and right. The problem at this point is that unlick in a UISlider where I can simply call slider.value to get its value, I have no clue how to set a range of values (max and min) and how to get the specific value out of a

问题 I originally setup some conditions using CGRectIntersectsRect for some collision detection which worked fine. In the greater scale of things I only need part of the view to be detected. So originally within the ViewController it was comparing 2 UIviews. Now what I need to do is collision detection of subViews within 2 different UIViews that are contained in a view in which the view controller does the logic. My script is no longer working as I suspect CGRectIntersectsRect only compares frames

问题 This has been annoying me for a while in several XCode projects. I really don't like to have compiler warnings when I build. When I build my current project, I get the following warning from a bunch of XIB files: /.../CaseInformationView.xib:3:0 UIScrollView's 'Bounce Zoom' option will be ignored on iPhone OS versions prior to 2.1. Since I'm building for 3.0, I don't care if it will be ignored. If I want to use the Bounce Zoom option in my XIB file, how can I not see this warning? 回答1: In IB,

问题 I have a question related to save an array of Class objects to a plist And then get it back. For example i have a class "A" with two Nsstring and some int values. I have an array of Class A objects. How can i save this array in to plist. I can Done store a simple Array(Array of Strings) in to Plist.There is No Error. But When I store this "Array of Objects" It cant be done. Thanks in Advance. 回答1: First convert your NSArray to NSDictionary as given here. Then use NSDictionary's writeToFile

问题 Is it possible to embed a reference to an image in an HTML email sent via MFMailComposeViewController on iPhone OS 3.0? (void)addAttachmentData:(NSData*)attachment mimeType:(NSString*)mimeType fileName:(NSString*)filename doesn't seem to provide any way of either setting or reading the Content-ID header for an attachment, but is there some way to make this work? I have seen apps that do this, but they're probably using SKPSMTPMessage... 回答1: I believe you can use an HTML tag in the email's

问题 I know Core Location isnt always accurate on the iPhone. Is there a way to use the location (lat/long) along with the accuracy to then grab all of the possible suburbs/streets in that area? So instead of using the reverse geocoding and having it guess the 'best possible suburb/street, is there a way to make it give an array (or in some other format) of all the possible suburbs/streets that it could consider? Thanks!! 回答1: So, the best approach to do this, is using the Google maps API. For