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  • iphone app with role based login?

    - by chaitanya
    Can iPhone apps have role based login? In my application I have to display the content according to the role of the user (employee, visitor). Till now I havent seen any app with role based login for iphone. Can I develop role based login? is there any restriction from apple side for these kind of logins to approve the app?

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  • iphone image saving

    - by kpower
    I can save image to iPhone (iPhone Photo Albums \ Saved Photos) with UIImageWriteToSavedPhotosAlbum(image, onCompleteTarget, onCompleteSelector, contextInfoToCompleteSelector); But if there any way to check, if current image was already saved (to save it only once)?

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  • iPhone SDK background thread image loading problem

    - by retailevolved
    I have created a grid view that displays six "cells" of content. In each cell, an image is loaded from the web. There are a multiple pages of this grid (the user moves through them by swiping up / down to see the next set of cells). Each cell has its own view controller. When these view controllers load, they use an ImageLoader class that I made to load and display an image. These view controllers implement an ImageLoaderDelegate that has a single method that gets called when the image is finished loading. ImageLoader does its work on a background thread and then simply notifies its delegate when it is done loading, passing the image to the delegate method. Trouble is that if the user moves on to the next page of grid content before the image has finished loading (releasing the GridCellViewControllers that use the ImageLoaders), the app crashes. I suspect that this is because along the line, an asynchronous method finishes and attempts to notify its delegate but can't because it's been released. Here's some code to give a better picture: GridCellViewController.m: - (void)viewDidLoad { [super viewDidLoad]; // ImageLoader _loader = [[ProductImageLoader alloc] init]; _loader.delegate = self; if(_boundObject) [_loader loadImageForProduct:_boundObject]; } //ImageLoaderDelegate method - (void) imageDidFinishLoading: (UIImage *)image { [_imgController setImage:image]; } ProductImageLoader.m - (void) loadImageForProduct: (Product *) product { // Get image on another thread [NSThread detachNewThreadSelector:@selector(getImageForProductInBackground:) toTarget:self withObject:product]; } - (void) getImageForProductInBackground: (Product *) product { NSAutoreleasePool *tempPool = [[NSAutoreleasePool alloc] init]; HttpRequestLoader *tempLoader = [[HttpRequestLoader alloc] init]; NSURL *tempUrl = [product getImageUrl]; NSData *imageData = tempUrl ? [tempLoader loadSynchronousDataFromAddress:[tempUrl absoluteString]] : nil; UIImage *image = [[UIImage alloc] initWithData:imageData]; [tempPool release]; if(delegate) [delegate imageDidFinishLoading:image]; } The app crashes with EXC_BAD_ACCESS. Disclaimer: The code has been slightly modified to focus on the issue at hand.

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  • Text to speech on iPhone

    - by lostInTransit
    Hi Is there any way we can convert text to speech in an iPhone app? Is it possible using the SDK? Thanks Are there any third-party TTS engines available for the iPhone? (AFAIK Acapela is not yet released)

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  • Is there any sync services library for iphone

    - by Fedrick
    Hi all, i am developing a mobile client to sync images from iphone photo gallery to amazon s3,so is there any sync services libraries that can help me in this regard.. Also is there any library to access the iphone photo gallery,I just wanted to pick all photos, randomly, from the images stored on the device with no user interaction? Thanks in advance.......

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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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  • How to parse xml string in iphone 2.0

    - by MaheshBabu
    Hi folks, I am getting information (id,name,address) in the form of xml string form the .net web server. i am using NSXMlparsing to parse this xml string in iphone os 4.0. Now i need to do the same application in iphone os 2.0. i found Nsxmlparsing delegate should work on 4.0 and later. Can any one please suggest which method is suitable to parse xml string and sample tutorial. Thank u in advance.

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  • iPad SDK, how to handle orientation with an UIImageView

    - by Salah
    Hello I'm developing an app for iPad and I try to handle multiple orientation. My app contains a webview and a loading UIImageView that appears when my webview is loading content. This UIImageView has a background image that I set in InterfaceBuilder. When I change orientation to landscape, the image is cut. I'd like the UIImageView to set image-portrait.png when the ipad is in portrait mode and image-landscape.png when it's in landscape mode. Thank you for your help and advices! Screenshots :

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  • Detect same image names {iPhone SDK}

    - by Momeks
    hi , i want create image animation , i have 50 images with png format now i want set images name ... something like this but doesnt work ! my images name are : iamge_0000 to image_0050 NSArray *myImages = [NSArray arrayWithObjects: [UIImage imageNamed:@"image_%d.png"], //image named doesnt work ??!?!?!?

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  • How to add a view on cell.contentview of uitableview iphone sdk

    - by neha
    Hi all, In my application I'm creating a .xib of a class and loading that .xib on cells of uitableview of another class. I want to add this .xib to cell.contentView and not cell. How shall I do that? - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString* cellIdentifier = @"testTableCell"; testTableCell * cell = (testTableCell *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (cell == nil) { [[NSBundle mainBundle] loadNibNamed:@"testTableCell" owner:self options:nil]; cell = tCell; } return cell; } testTableCell is my another class in which I have two labels and two buttons, of which I have created a .xib and loading it to tableview's cell as above. tCell is an object of class testTableCell. Thanks in advance.

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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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  • XML Parsing need help iphone sdk

    - by neha
    Hi all, How do you get "MayurS123" from following xml tag by parsing? <eletitle lnk="http://192.168.10.2/justmeans/trunk/newsfeed/mayurs">MayurS123 Sharma</eletitle> My file is getting parsed properly. Here I'm able to retrieve the lnk component by doing: if([elementName isEqualToString:@"eletitle"]) { aGoodwork.lnk = [attributeDict objectForKey:@"lnk"]; } But I'm not getting how to get in actual title. Thanx in advance.

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  • Switching xib's in iPhone SDK?

    - by NextRev
    I'm having issues with switching xib's when I try to from my second view into the third. I get into the second view from the first like this... -(IBAction)startButtonClicked:(id)sender{ Number2ViewController *screen = [[Number2ViewController alloc] initWithNibName:nil bundle:nil]; screen.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController:screen animated:YES]; [screen release]; } But when I'm in the second view trying to get to the third view, the app crashes... -(IBAction)nextButtonClicked:(id)sender{ Number3ViewController *screen = [[Number3ViewController alloc] initWithNibName:nil bundle:nil]; screen.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController:screen animated:YES]; [screen release]; } I know how to go into one view and then immediately back using [self dismissModalViewControllerAnimated:YES]; How do you just keep going to different views though without having to go back first?

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  • How does autosize work in iPhone SDK?

    - by bresc
    Hi, I'm trying to do the following: I need to do a lot of custom things, so I subclassed everything. I'm having issues with autoresize and positioning. For instance the UIToolBar is not at the correct position. So here is the question: If you don't use UITableViewController or any other Controller, that takes care of all the positioning and sizing, then you have to do it yourself. Can someone someone tell me how this works? What do I need to understand?

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  • Capture iPhone screen with status bar included?

    - by Josh
    I am looking for a way to capture a screenshot on the iPhone with the top status bar included, I am currently using the following code: UIGraphicsBeginImageContext(self.view.bounds.size); //self.view.window.frame.size [self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil); The above code sucessfully takes a screenshot of the iPhone UIView but does not include the top status bar (In its place is just a blank 20px space).

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  • Iphone SDk inString Function

    - by Skeep
    Hi All, Im trying to write a method that will pull out the ID from a URI String. My code below seems inefficient, what would be a better way of finding the id string? NSString *aID = [[[NSString alloc] initWithString:@"http://www.example.com/id368907840?mt=8&uo=4"] autorelease]; NSArray *arrStr = [aID componentsSeparatedByString:@"/id"]; aID = [arrStr objectAtIndex:1]; arrStr = [aID componentsSeparatedByString:@"?mt="]; aID = [arrStr objectAtIndex:0]; The above leaves me with the NSString = 368907840

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