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  • Iphone UITextField only integer

    - by Raphael Pinto
    I have a UITextField in my IB and I want to check out if the user entered only numbers (no char)and get the integer value. I get the integer value of the UITextField like that : int integer = [myUITexrtField.text intValue]; When I put a character ( , ; . ) it return me 0 and I don't know how to detect that it is not only numbers. How can I do?

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  • iphone - memory leaks in separate thread

    - by Brodie4598
    I create a second thread to call a method that downloads several images using: [NSThread detachNewThreadSelector:@selector(downloadImages) toTarget:self withObject:nil]; It works fine but I get a long list of leaks in the log similar to: 2010-04-18 00:48:12.287 FS Companion[11074:650f] * _NSAutoreleaseNoPool(): Object 0xbec2640 of class NSCFString autoreleased with no pool in place - just leaking Stack: (0xa58af 0xdb452 0x5e973 0x5e770 0x11d029 0x517fa 0x51708 0x85f2 0x3047d 0x30004 0x99481fbd 0x99481e42) 2010-04-18 00:48:12.288 FS Companion[11074:650f] * _NSAutoreleaseNoPool(): Object 0xbe01510 of class NSCFString autoreleased with no pool in place - just leaking Stack: (0xa58af 0xdb452 0x5e7a6 0x11d029 0x517fa 0x51708 0x85f2 0x3047d 0x30004 0x99481fbd 0x99481e42) 2010-04-18 00:48:12.289 FS Companion[11074:650f] * _NSAutoreleaseNoPool(): Object 0xbde6720 of class NSCFString autoreleased with no pool in place - just leaking Stack: (0xa58af 0xdb452 0x5ea73 0x5e7c2 0x11d029 0x517fa 0x51708 0x85f2 0x3047d 0x30004 0x99481fbd 0x99481e42) Can someone help me understand the problem?

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  • Objective-C assigning variables question for iphone.

    - by coder net
    The following piece of code can be written in two ways. I would like to know what are the pros and cons of each. If possible I would like to stick with the one liner. 1) UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"Background.png"]]; self.view.backgroundColor = background; [background release]; 2) self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"Background.png"]]; Any issues with releasing memory etc. with #2? I'm new to Objective-C and would like to follow the best approach.

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  • iPhone FBConnect, dashboard.addnews

    - by Dmitry
    Hi, The question is: how to add news via FBConnect?? I have the following code: NSString *newsBody = @"[{\"message\": \"News message\" }]"; NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObject:newsBody forKey:@"news"]; [[FBRequest requestWithDelegate:self] call:@"facebook.dashboard.addnews" params:params dataParam:nil]; After I sent the request I received the success responce. But I can't see the new news in the facebook account!! Also, I tried to add full info into news parameter (http://wiki.developers.facebook.com/index.php/Dashboard.addNews):: NSString *newsBody = @"[{\"message\": \"News message\",\"action_link\": {\"text\": \"link text\", \"href\": \"http: //google.com\"} }]"; But this request returns error :( Thanks in advance!

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  • iPhone: Howto get notified when an UIView becomes visible

    - by arne_
    Is there a way to get a notification, a callback or some other means to call a method whenever a UIView becomes visible for the user, i.e. when a UIScrollview is the superview of some UIViews, and the ViewController of such a UIView shall get notified when its view is now visible to the user? I am aware of the possible, but not so elegant solution of checking to which position the ScrollView scrolled (via UIScrollViewDelegate-methods) and compute if either one of the subviews is visible... But I'm looking for a more universal way of doing this.

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  • Objective C iPhone save text

    - by David Maitland
    How is it possible to save text from a text field when the user quit's the app then when the user re opens the app the text appears back in the same text box, can this be done with out a save button? What code is needed for the text to be saved and what action is needed for doing this when the app is opened? Thanks, David

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  • iphone sdk - problem pasting into current text location

    - by norskben
    Hi guys I'm trying to paste text right into where the cursor currently is. I have been trying to do what it says at: - http://dev.ragfield.com/2009/09/insert-text-at-current-cursor-location.html The main deal is that I can't just go textbox1.text (etc) because the textfield is in the middle of a custom cell. I want to just have some text added to where the cursor is (when I press a custom key on a keyboard). -I just want to paste a decimal into the textbox... The error I get is: 2010-05-15 22:37:20.797 PageControl[37962:207] * -[MyDetailController paste:]: unrecognized selector sent to instance 0x1973d10 2010-05-15 22:37:20.797 PageControl[37962:207] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[MyDetailController paste:]: unrecognized selector sent to instance 0x1973d10' Note: I have access to the textfield tag (if that helps?) I'm a little past the beginner stage in objective-c, but still not great. My code is currently below, and at https://gist.github.com/d634329e5ddf52945989 Thanks all. MyDetailController.h @interface MyDetailController : UITableViewController <UITextFieldDelegate,UINavigationControllerDelegate> { //...(lots in here) } @end @interface UIResponder(UIResponderInsertTextAdditions) - (void) insertText: (NSString*) text; @end MyDetailController.m @implementation MyDetailController //.... (lots in here) - (void)addDecimal:(NSNotification *)notification { // Apend the Decimal to the TextField. //savedAmount.text = [savedAmount.text stringByAppendingString:@"."]; NSLog(@"Decimal Pressed"); NSLog(@"tagClicked: %d",tagClicked); switch (tagClicked) { case 7: //savedAmount.text = [savedAmount.text stringByAppendingString:@"."]; break; case 8: //goalAmount.text = [goalAmount.text stringByAppendingString:@"."]; break; case 9: //incrementAmount.text = [incrementAmount.text stringByAppendingString:@"."]; break; case 10: //incrementAmount.text = [incrementAmount.text stringByAppendingString:@"."]; break; } [self insertText:@"."]; } -(void)textFieldDidBeginEditing:(UITextField *)textfield{ //UITextField *theCell = (UITextField *)sender; tagClicked = textfield.tag; NSLog(@"textfield changed. tagClicked: %d",tagClicked); } @end @implementation UIResponder(UIResponderInsertTextAdditions) - (void) insertText: (NSString*) text { // Get a refererence to the system pasteboard because that's // the only one @selector(paste:) will use. UIPasteboard* generalPasteboard = [UIPasteboard generalPasteboard]; // Save a copy of the system pasteboard's items // so we can restore them later. NSArray* items = [generalPasteboard.items copy]; // Set the contents of the system pasteboard // to the text we wish to insert. generalPasteboard.string = text; // Tell this responder to paste the contents of the // system pasteboard at the current cursor location. [self paste: self]; // Restore the system pasteboard to its original items. generalPasteboard.items = items; // Free the items array we copied earlier. [items release]; } @end

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  • Tracking iPhone on Yahoo Web Analytics using ASIHTTPRequest

    - by Mads Mobæk
    I'm trying to track an event in my app using Yahoo Web Analytics. The code I am using looks like ASIHTTPRequest *yahooTrack = [ASIHTTPRequest requestWithURL: [NSURL URLWithString:@"http://s.analytics.yahoo.com/p.pl?a=xxxxxxxxxxxxx&js=no&b=yyyyyyyyyyyy&cf6=zzzzzzzzzzz"]]; yahooTrack.didFinishSelector = @selector(statisticsFinished:); yahooTrack.delegate = self; [yahooTrack startAsynchronous]; Then the statisticsFinished looks like: NSLog(@"Cookies: %@", request.requestCookies); NSLog(@"Redircount: %d", [request redirectCount]); NSLog(@"Responsecode %d %@\nMsg: %@", request.responseStatusCode, request.responseStatusMessage, [request responseString]); And all the information I get back looks correct. Cookies are set, redirectcount is 1 the first time (as it redirects to s.analytics.yahoo.com/itr.pl?.... a normal browser does). Then the redirectcount is 0 for subsequent request until the app is restarted and session cleared. The responseString returns GIF89a. Even if the data looks correct, Yahoo still won't track. As soon as I call the tracking url directly in my browser it works as expected. I realize Flurry is a better option, but I'm forced to use Yahoo in this case. Also, using a UIWebView probably would work, but I'm against putting in a webview just for tracking purposes. Is there any difference in how ASIHTTPRequest and Safari would handle a call to a simple URL as this? Or do you see anything else that could explain why the tracking isn't working?

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  • Get text of button from IBAction - iPhone

    - by Organiccat
    When an IBAction is called: -(IBAction) onClick1: (id) sender; What is passed in the sender? Since it's hooked up through the IB, I'm not really sure. My question is how to get the text of the button to be the passed object (NSString most likely) so that I could call it inside the action implementation. -(IBAction) onClick1: (id) sender { NSLog(@"User clicked %@", sender); // Do something here with the variable 'sender' }

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  • iphone uitableview load next detail view from segmented control like mail app

    - by Neil
    Hi i have added a segmented control to a detailview header in a subview of a uitableview table and used images for up and down to create a up and down control like the one in mail.app. the buttons are working fine. im after some advice on how to get rid of that items view and reload the next item without having to go back to the main uitableview. im sure i saw some code on this website doing exactly that but i cant find it! can anyone point me in right direction or help? thanks

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  • iPhone UISearchBar animated to top

    - by hurley scott
    There are lots of apps where the searchbar moves upwards if active and moves down when it is inactive. There is a sample code from apple available which works with IB, but how can I achieve this behavior programmatically? Mostly it is combined with a navigationbar which moves out of the screen in replace with the searchbar

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  • iPhone web views - detecting short phone numbers

    - by Pedro
    G'day All Most Australian phone numbers are 10 digits with the 1st 2 optional if they're a local area code. For those setting... viewer.dataDetectorTypes = UIDataDetectorTypePhoneNumber; on a web view works. We also have a range of 6 digit phone numbers (usually written xxx xxx or xx xxxx) which aren't being detected in my app. Is there a way to detect those phone numbers as well? Cheers & TIA, Pedro :)

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  • Datetime picker in iphone

    - by sudhakarilla
    I have one issue with Datetime Picker In my firstview i have button.If i click that button it should open DateTime Picker in the second view. After selecting the datetime it should show datetime in the firstview text field. Please help in this issue.

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  • datetime picker in iphone

    - by sudhakarilla
    I have one issue with Datetime Picker In my view i have button.If i click that button it should open DateTime Picker. After selecting the datetime it should show datetime in the text field and disable of the Datetime picker Please help in this issue.

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  • iPhone POST to PHP failing

    - by Alexander
    I have this code here: NSString *post = [NSString stringWithFormat:@"deviceIdentifier=%@&deviceToken=%@",deviceIdentifier,deviceToken]; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO]; NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:@"http://website.com/RegisterScript.php"]]; [request setHTTPMethod:@"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setValue:@"MyApp-V1.0" forHTTPHeaderField:@"User-Agent"]; [request setHTTPBody:postData]; NSData *urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *response = [[NSString alloc] initWithData:urlData encoding:NSASCIIStringEncoding]; which should be sending data to my PHP server to register the device into our database, but for some of my users no POST data is being sent. I've been told that this line: NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO]; may be causing the problem. Any thoughts on why this script would sometimes not send the POST data? On the server I got the packet trace for a failed send and the Content-lenght came up as 0 so no data was sent at all. Thanks for any help

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  • xcode/iphone Code templates

    - by vilo
    Is there some tool in xcode that allows me to store snippets of code I often reuse in various applications so I do not have to retype it each time? I am talking about things like all the code that goes into defining Table Delegate Methods and Table Source Methods, UIAlertViews code and such. I just would like to have my own private repository where I can put snippets of code I think I may need in the future in other apps. Is there anything like that? Thanks for any help.

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  • Memory issue regarding UIImageView on IPhone 4.0 / IPad

    - by Sagar Mane
    Hello All, My Application is crashing due to low memory [ Received memory warning level 1 + 2] To trace this I have used Instrument and come with following points Test Enviorment : Single view controller added on Window When I don't use UIImageView Real Memory is used 3.66 MB When I uses UIImageView with Image having size 25 KB : Real Memory is used 4.24 MB. almost 560 KB extra when compare to w/o UIImageView and which keep on adding as I am adding more UIImageview on the view. below is sample code for adding UIImageview which I am refering UIImageView* iSplashImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Default-Landscape.png"]]; iSplashImage.frame = CGRectMake(0, 0, 320, 480); [self.window addSubview:iSplashImage]; AND dealloc if(iSplashImage) { [iSplashImage release]; iSplashImage = nil; } Issue is this 560 KB is not getting release and after some time application receives low memory warning. Can anyone point out if I am missing something or doing else. As My application uses lots of Images in One session. Thanks in Advance, Sagar

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  • core data missing records iphone

    - by Sridhar
    Hello, I have a strange and serious problem. When I am working with core data (not saving or editing or anything) just accessing the data from entity. Sometime strangely a few records or all records are missing(deleting) from the entity when my application restarts. I checked them by opening the SQLite database. Can anyone have the same problem ? Thanks, Raghu

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  • iPhone mapkit: selecting a location on the map

    - by Tristan
    Hi there, I'd like to be able to select a location on a MKMapView. Ideally the user would be able to place their finger on a pin, drag it around the map, and then let go above there area they wish to place it. I'm stumped. Does anyone have any clever ideas how this could be achieved?

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  • iphone Core Data Unresolved error while saving

    - by Ahmed Kotb
    I am getting a strange error message from the core data when trying to save but the problem that the error is not reproducible ( it appears at different times when doing different tasks) the error message: Unresolved error Domain=NSCocoaErrorDomain Code=1560 UserInfo=0x14f5480 "Operation could not be completed. (Cocoa error 1560.)", { NSDetailedErrors = ( Error Domain=NSCocoaErrorDomain Code=1570 UserInfo=0x5406d70 "Operation could not be completed. (Cocoa error 1570.)", Error Domain=NSCocoaErrorDomain Code=1570 UserInfo=0x14f9be0 "Operation could not be completed. (Cocoa error 1570.)" ); } and the method that generates the error is: - (IBAction)saveAction:(id)sender { NSError *error; if (![[self managedObjectContext] save:&error]) { // Handle error NSLog(@"Unresolved error %@, %@, %@", error, [error userInfo],[error localizedDescription]); exit(-1); // Fail } } any idea for the reason of this message ? giving that it appears at random times

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  • iPhone:Tabbar hides when pushing from TableView to UIViewController

    - by user187532
    Hello all, I have four Tab bar items in a Tab bar which is being bottom of the view where i have the TableView. I am adding Tab bar and items programmatically (Refer below code) not through I.B. Click on first three Tab bar items, will show the data in the same TableView itself. But clicking on last Tab bar items will push to another UIViewcontroller and show the data there. The problem here is, when i push to the viewController when clicking on last Tab bar item, main "Tab bar" is getting removed. Tab bar code: UITabBar *tabBar = [[UITabBar alloc] initWithFrame:CGRectMake(0, 376, 320, 44)]; item1 = [[UITabBarItem alloc] initWithTitle:@"First Tab" image:[UIImage imageNamed:@"first.png"] tag:0]; item2 = [[UITabBarItem alloc] initWithTitle:@"Second Tab" image:[UIImage imageNamed:@"second.png"] tag:1]; item3 = [[UITabBarItem alloc] initWithTitle:@"Third Tab" image:[UIImage imageNamed:@"third.png"] tag:2]; item4 = [[UITabBarItem alloc] initWithTitle:@"Fourth Tab" image:[UIImage imageNamed:@"fourth.png"] tag:3]; item5 = [[UITabBarItem alloc] initWithTitle:@"Fifth Tab" image:[UIImage imageNamed:@"fifth.png"] tag:4]; NSArray *items = [NSArray arrayWithObjects: item1,item2,item3,item4, item5, nil]; [tabBar setItems:items animated:NO]; [tabBar setSelectedItem:item1]; tabBar.delegate=self; [self.view addSubview:tabBar]; Push controller code clicking from last Tab bar item: myViewController = [ [MyViewController alloc] initWithNibName:@"MyView" bundle:nil]; myViewController.hidesBottomBarWhenPushed=NO; [[self navigationController] pushViewController:myViewController animated:NO]; I am not seeing bottom Tab bar when i push my current TableView to myViewController. I am seeing full screen view there. I want to see bottom Tab bar always when every tab item clicked. What might be the problem here? Could someone who come across this issue, please share your suggestion to me? Thank you.

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  • CLLocationManager ensure best accuracy for iphone

    - by Zap
    Does anyone have any suggestions on how to obtain the best horizontal accuracy on the location manager? I have set the desired accuracy to NearestTenMeters, but given that the accuracy can always change depending on coverage area, how can I write some code in the locationManager to stop updating only after I get the best horizontal accuracy?

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  • Custom Map using iPhone MapKit

    - by DHamrick
    I am attempting to use MapKit to create a custom map (similar to this concept http://mapwow.com/) using an image instead of the google maps image. This is so we can include the gps functionality and the pins functionality. I have looked in the documentation and there does not appear to be a standard way of doing it. Is there a way to do this using MapKit or has someone found a way to achieve something similar?

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