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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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  • 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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  • 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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  • How can i get a list of currently running threads in objective-C(iphone)

    - by krasnyk
    Is there a way to get the list of currently running threads in objective-C? I'm mostly interested in getting the NSThreads objects, cause i want to replace the assertion handler for each running thread? If such thing is not possible, maybe i could set my own selector to be invoked after any thread is spawn(so that i could do the assertion handler replacement over there)?

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  • iphone app submission errors

    - by Oliver
    When I try to add my application, I get Info.plist does not contain a CFBundleResourceSpecification and Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. I don't understand! I'm so frustrated, I finished my two apps and now I can't submit them. I checked the provisioning licenses and app ids and that whole process a many times over, I dunno what I'm doing wrong here. Can anyone help? :(

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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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  • 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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  • iPhone SDK - Comparing characters in string

    - by Karl Daniel
    Basically what I'm trying to do is compare 2 strings one from a plist and one from the user's input. I use a while loop to step through each character and compare it and if true then I increase an integer then once the loop has finished I work out the percentage correct / similarity of the plist answer and the user's answer. I seem to be having a problem however as the only return I'm getting is 0. Below is the code I'm using... The code below is all functioning and the question no longer requires answering... Working code... answerLength = boxAnswer.length; //Gets number of characters of first string. plistLength = plistAnswer.length; //Gets number of characters of second string. characterRange = 0; //Sets the variable for which character to look at. charactersCorrect = 0; //Sets the variable of number of matching characters. unichar answerCharacter; //Declares a unichar for the first string. unichar plistCharacter; //Declares a unichar for the second string. while (answerLength > 0 && plistLength > 0) { answerCharacter = [boxAnswer characterAtIndex:characterRange]; //Gets character of first string at the index of the range integer. plistCharacter = [plistAnswer characterAtIndex:characterRange]; //Gets character of second string at the index of the range integer. answerLength--; //Reduces number of characters left to compare. plistLength--; characterRange++; //Increases integer to tell it to look at next character in string. if (answerCharacter == plistCharacter) { //Checks to see if character of first string and character of second string match. charactersCorrect++; //If true increases the number correct. } } //Works out percentage of matching characters out of the total string. totalChar = plistAnswer.length; totalPercentage = (charactersCorrect/totalChar)*100; percentageCorrect.text = [NSString stringWithFormat:@"%i%%",totalPercentage]; Variable Declarations... int answerLength; int plistLength; int characterRange; double totalChar; double charactersCorrect; int totalPercentage;

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  • Need multiple views to respond to a touch event in an iPhone app

    - by Joel
    Setup: I have two views that I need to respond to the touch event, and they are layered out on top of one another. View 1 is on top of View 2. View 2 is a UIWebView. View 1 is sublclassed to capture the touch event. My problem is that if I try to call the UIWebView event handlers (touchesBegan: and touchesEnded:) from within the event handlers of View 1, which is the first responder, nothing happens. However if I set View 1 to userInteractionEnabled = NO, then the touch goes through that view and is processed properly by the 2nd view. Any ideas on how I can have 2 views respond to a touch event? Unfortunately the 2nd view is a UIWebView, so I need to actually call the event handler and not a different method, etc... Thanks in advance for any advice, Joel

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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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  • There is no attachment in the sent mail by iPhone

    - by naruhodo
    I'm trying to send a recorded sound file as attachment with MFMailComposeViewController. The sound file is OK. The picker shows the correct file name, shows the audio file icon as attachment, sends the mail, but there is no attachment in the result. I attached below the source of the sent mail. There is a "text/plain" content type part instead of "Content-Disposition: attachment;" as expected. This is my code code to define the path and attach the audio file. What could be wrong? #define DOCUMENTS_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] #define FILEPATH [DOCUMENTS_FOLDER stringByAppendingPathComponent:[self dateString]] ... NSURL *url = [NSURL fileURLWithPath:FILEPATH]; self.recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error]; ... MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; NSURL *url = [NSURL fileURLWithPath: [NSString stringWithFormat:@"%@", [self.recorder url]]]; NSData *audioData = [NSData dataWithContentsOfFile:[url path]]; [picker addAttachmentData:audioData mimeType:@"audio/wav" fileName:[[url path] lastPathComponent]]; and the source of the sent mail: Content-type: multipart/mixed; boundary=Apple-Mail-1-614960740 Content-transfer-encoding: 7bit MIME-version: 1.0 (iPod Mail 7E18) Subject: Sound message: Date: Sun, 11 Apr 2010 11:58:56 +0200 X-Mailer: iPod Mail (7E18) --Apple-Mail-1-614960740 Content-Type: text/plain;     charset=us-ascii;     format=flowed Content-Transfer-Encoding: 7bit It is a text here --Apple-Mail-1-614960740 Content-Type: text/plain;     charset=us-ascii;     format=flowed Content-Transfer-Encoding: 7bit Sent from my iPod --Apple-Mail-1-614960740--

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  • iPhone accelerometer:didAccelerate: seems to not get called while I am running a loop

    - by AJ
    An accelerometer related question. (Sorry the formatting may not look right, its the first time I am using this site). I got the accelerometer working as expected using the standard code UIAccelerometer *accel = [UIAccelerometer sharedAccelerometer]; accel.delegate = self; accel.updateInterval = 0.1; //I also tried other update values I use NSLog to log every time the accelerometer:didAccelerate: method in my class is called. The function gets called as expected and everything works fine till here. However, when I run a loop, the above method doesn't seem to get called. Something like this float firstAccelValue = globalAccel; //this is the x-accel value (stored in a global by the above method) float nextAccelValue = firstAccelValue; while (nextAccelValue == firstAccelValue){ //do something nextAccelValue = globalAccel; // note globalAccel is updated by the accelerometer method } The above loop never exits, expectedly since the accelerometer:didAccelerate: method is not getting called, and hence globalAccel never changes value. If I use a fixed condition to break the while loop, I can see that after the loop ends, the method calls work fine again. Am I missing something obvious here? Or does the accelerometer method not fire when certain processing is being done? Any help would be greatly appreciated! Thanks!

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  • MGTwitterEngine - Using getImageAtURL on iPhone

    - by Andrew Malchow
    Essentially, I'm working on asynchronously downloading images and adding them to specific UITableView cells (twitter profile images using MGTwitterEngine from Matt Gemmell). I've looked at general asynchronous download code and must admit, I'm still too much of a noob to understand it well enough to adapt it to my purposes. Instead, I'm attempting to use Gemmell's included getImageAtUrl method to add the images. I have it working to the point that -imageReceived: receives the images for visible cells, however, I'm stuck as to how to include them into the appropriate cells at that point. - (void)imageReceived:(UIImage *)image forRequest:(NSString *)identifier { NSLog(@"Got an image:%@",image); // What goes here? Or elsewhere? } This method is within my main view controller, I also have a custom cell controller where I'm drawing the cell content using Loren Brichter's fast scrolling code. Any help with this MGTwitterEngine method in particular, or with dynamically adding these images to my table cells would be greatly appreciated.

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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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  • Memory leak problem. iPhone SDK

    - by user326375
    Hello, i've got a problem, i cannot solve it, just recieving error: Program received signal: “0”. The Debugger has exited due to signal 10 (SIGBUS).The Debugger has exited due to signal 10 (SIGBUS). Here is some method, if i comment it out, problem goes aways - (void)loadTexture { const int num_tex = 10; glGenTextures(num_tex, &textures[0]); //TEXTURE #1 textureImage[0] = [UIImage imageNamed:@"wonder.jpg"].CGImage; //TEXTURE #2 textureImage[1] = [UIImage imageNamed:@"wonder.jpg"].CGImage; //TEXTURE #3 textureImage[2] = [UIImage imageNamed:@"wall_eyes.jpg"].CGImage; //TEXTURE #4 textureImage[3] = [UIImage imageNamed:@"wall.jpg"].CGImage; //TEXTURE #5 textureImage[4] = [UIImage imageNamed:@"books.jpg"].CGImage; //TEXTURE #6 textureImage[5] = [UIImage imageNamed:@"bush.jpg"].CGImage; //TEXTURE #7 textureImage[6] = [UIImage imageNamed:@"mushroom.jpg"].CGImage; //TEXTURE #8 textureImage[7] = [UIImage imageNamed:@"roots.jpg"].CGImage; //TEXTURE #9 textureImage[8] = [UIImage imageNamed:@"roots.jpg"].CGImage; //TEXTURE #10 textureImage[9] = [UIImage imageNamed:@"clean.jpg"].CGImage; for(int i=0; i<num_tex; i++) { NSInteger texWidth = CGImageGetWidth(textureImage[i]); NSInteger texHeight = CGImageGetHeight(textureImage[i]); GLubyte *textureData = (GLubyte *)malloc(texWidth * texHeight * 4); CGContextRef textureContext = CGBitmapContextCreate(textureData, texWidth, texHeight, 8, texWidth * 4, CGImageGetColorSpace(textureImage[i]), kCGImageAlphaPremultipliedLast); CGContextDrawImage(textureContext, CGRectMake(0.0, 0.0, (float)texWidth, (float)texHeight), textureImage[i]); CGContextRelease(textureContext); glBindTexture(GL_TEXTURE_2D, textures[i]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureData); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); free(textureData); } } anyone can help me with releasing/deleting objects in this method? Thanks.

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  • iPhone: Sharing protocol/delegate code

    - by pion
    I have the following code protocol snippets: @protocol FooDelegate; @interface Foo : UIViewController { id delegate; } ... @protocol FooDelegate ... // method 1 ... // method 2 ... @end Also, the following code which implements FooDelegate: @interface Bar1 : UIViewController { ... } @interface Bar2 : UITableViewController { ... } It turns out the implementation of FooDelegate is the same on both Bar1 and Bar2 classes. I currently just copy FooDelegate implementation code from Bar1 to Bar2. How do I structure/implement in such a way that Bar1 and Bar2 share the same code in a single code base (not as currently with 2 copies) since they are the same? Thanks in advance for your help.

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  • Swiping Images with Page Control in Iphone

    - by lakesh
    I am trying to make practice app where i can scroll images with page control. I am able to scroll images and able to include the page control. But the problem i face is i am not able to interlink the two. Meaning to say when I scroll the images, the page control is not affected and when i change the page control, the scrolling of the images is unaffected. I have referred to this: http://www.iosdevnotes.com/2011/03/uiscrollview-paging/ for the scrolling with page control. Viewcontroller.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController <UIScrollViewDelegate>{ UIScrollView *scrollView; UIPageControl *pageControl; BOOL pageControlBeingUsed; } @property (nonatomic, retain) IBOutlet UIScrollView *scrollView; @property (nonatomic, retain) IBOutlet UIPageControl *pageControl; - (IBAction)changePage; @end Viewcontroller.m #import "ViewController.h" @interface ViewController () @end @implementation ViewController @synthesize scrollView,pageControl; - (void)viewDidLoad { [super viewDidLoad]; NSArray *images = [[NSArray alloc] initWithObjects:[UIImage imageNamed:@"1.jpeg"],[UIImage imageNamed:@"2.jpeg"],[UIImage imageNamed:@"3.jpeg" ], nil]; self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * images.count, self.scrollView.frame.size.height); for (int i = 0; i < images.count; i++) { CGRect frame; frame.origin.x = self.scrollView.frame.size.width * i; frame.origin.y = 0; frame.size = self.scrollView.frame.size; UIImageView* imgView = [[UIImageView alloc] init]; imgView.image = [images objectAtIndex:i]; imgView.frame = frame; [scrollView addSubview:imgView]; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; self.scrollView = nil; } - (void)scrollViewDidScroll:(UIScrollView *)sender { // Update the page when more than 50% of the previous/next page is visible CGFloat pageWidth = self.scrollView.frame.size.width; int page = floor((self.scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1; self.pageControl.currentPage = page; } - (IBAction)changePage{ // update the scroll view to the appropriate page CGRect frame; frame.origin.x = self.scrollView.frame.size.width * self.pageControl.currentPage; frame.origin.y = 0; frame.size = self.scrollView.frame.size; [self.scrollView scrollRectToVisible:frame animated:YES]; pageControlBeingUsed = YES; } - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { pageControlBeingUsed = NO; } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { pageControlBeingUsed = NO; } @end Need some guidance on this... Thanks..

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  • Compiling GData for iPhone

    - by spin-docta
    Hi, I'm trying to compile a project that uses the GData objective-c framework. I've successfully compiled and run the project under the 'Debug' configuration, but when I try to compile using 'Release' and now 'Adhoc' I get the following errors. NOTE: I duplicated the debug configuration for adhoc and that doesn't seem to help. "_kGDataGoogleAnalyticsDefaultAccountFeed", referenced from: _kGDataGoogleAnalyticsDefaultAccountFeed$non_lazy_ptr in TKGoogleAnayliticsAPI.o ".objc_class_name_GDataFeedAnalyticsAccount", referenced from: literal-pointer@_OBJC@_cls_refs@GDataFeedAnalyticsAccount in TKGoogleAnayliticsAPI.o ".objc_class_name_GDataFeedAnalyticsData", referenced from: literal-pointer@_OBJC@_cls_refs@GDataFeedAnalyticsData in TKGoogleAnayliticsAPI.o ".objc_class_name_GDataQueryAnalytics", referenced from: literal-pointer@_OBJC@_cls_refs@GDataQueryAnalytics in TKGoogleAnayliticsAPI.o ".objc_class_name_GDataServiceGoogleAnalytics", referenced from: literal-pointer@_OBJC@_cls_refs@GDataServiceGoogleAnalytics in TKGoogleAnayliticsAPI.o ld: symbol(s) not found collect2: ld returned 1 exit status

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  • iPhone UIButton Tap

    - by Ivan
    Hello all, I am trying to make a button that response to single and double tap. I am trying to do this using myAction method. The problem is that first time when I press the button the method myAction isn't called. Can somebody tell why this happening and how can I fix that? -(IBAction)myButton:(id)sender{ UIButton *theButton = (UIButton *)sender; [theButton addTarget:self action:@selector(myAction:forEvent:) forControlEvents:UIControlEventAllEvents]; } - (void)myAction:(id)sender forEvent:(UIEvent *)event { NSLog(@"Touch events goes here"); } Thank you, I. Vasilev

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  • iphone EXC_BAD_ACCESS

    - by Dave
    I seem to get an EXC_BAD_ACCESS error when I select a cell in my table view that takes me to a 2nd table view with a lot of these http://pastie.org/906711 could they be the problem if I have 8 of them ? Heres the backtrace : http://pastie.org/906729 Thanks for your time,

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