iphone-sdk-3.0

问题 On more than one occasion I've seen crashing bugs appear on iOS 3.x due to use of a new call that was introduced in 4.x without proper checking. Is there a way for Xcode to warn about classes, methods and procedures that are only available a later version than the deployment target? That way I could easily list through all the code and make sure it's properly conditionalized. 回答1: I've actually released something which helps with testing this sort of thing. It's part of my MJGFoundation set

问题 I have an app which crashes everytime when I resume it. I want that when user clicks Home button, the app should close rather than go in background mode. Is that possible? If yes, please let me know. If not, what could be the workaround so that my app does not crash when I resume it? Thanks! 回答1: In the plist, set YES to Application does not run in background key. When ur application is in background, due to memory insufficient, the views (and the objects released in viewDidUnload) might be

问题 I'm trying to present a modal view controller after selecting a contact and it doesnt seem to be working. In my - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person method, I dismiss peoplePicker, create an instance of my new view controller, then present it with [self.navigationController presentModalViewController:newController animated:YES]; and it doesnt work. However if i PUSH the view

问题 I am just wondering that is there any way to integrate the Earth browsers in an iPhone app (native or web). Is there any way or any suggestion friend, this is an open discussion so please let ideas flow in. Thank you All, 回答1: It is currently not possible. Read this. 来源： https://stackoverflow.com/questions/1276480/how-to-use-google-earth-on-iphone

问题 I'm trying to learn how to use the UITableView in conjunction with a SQLite back end. My issue is that I've gotten the table to populate with the records from the database, however I'm having a problem with the section titles. I am not able to figure out the proper set up for this, and I'm repeating all tasks under each section. The table looks like this. The groups field is where I'm trying to pull the section title from. TaskID groups TaskName sched lastCompleted nextCompleted success 1

问题 Been getting this odd error. heres the deal - in the below method i have an alert view come up, take a U/N and PW, then atempt to start another method. The method -postTweet does not get activated I just get this error in console wait_fences: failed to receive reply: 10004003 Which is really odd - as ive never seen it before - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ if (alertView == completeAlert ) { if (buttonIndex ==1) { passPromtAlert = [

问题 Been getting this odd error. heres the deal - in the below method i have an alert view come up, take a U/N and PW, then atempt to start another method. The method -postTweet does not get activated I just get this error in console wait_fences: failed to receive reply: 10004003 Which is really odd - as ive never seen it before - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ if (alertView == completeAlert ) { if (buttonIndex ==1) { passPromtAlert = [

问题 I have several UILabels. I setup a UIScrollView within a app that works fine. The problem that I'm having is I want some UILabels to scroll and some to remain frozen. I don't think this is a coding problem as much as a interface builder issue. 回答1: You can simply add the UILabel as subView of scrollView which you want to scroll. And add the UILabel as subView of self.view which you dont want to scroll. 回答2: If you mean you want the labels to be fixed on top of the scrollview, then simply drag

问题 I have this method... - (void) helloThere: (int) myValue { // I am trying to pass myValue to animationDidStop [UIView beginAnimations:nil context:[NSNumber numberWithInt: myValue]]; [UIView setAnimationDuration:1.0]; [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)]; [UIView setAnimationDelegate:self]; // do stuff [UIView commitAnimations]; } then I am trying to retrieve myValue on animationDidStop... - (void)animationDidStop:(NSString *)animationID finished:

问题 Im having issues with my code, its returning an error that says... 2011-12-24 22:52:36.280 BusinessManager[479:20b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSCFDictionary isEqualToString:]: unrecognized selector sent to instance 0x3e965e0'> Here is the code: #import "BusinessManagerAppDelegate.h" #import "ProspectViewController.h" #import "JSON.h" @implementation ProspectViewController @synthesize jsonArray; - (void)viewDidLoad { NSURL *jsonURL =