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  • Detect iphone region

    - by camilo
    Hi. In my app, the user is supposed to insert a phone number, which is then displayed somewhere else. In the contacts application, when displaying a phone number, it automatically appears in the format of the language selected by the user. Is there a way to do this automatically, or a way to detect the region and then adapt the displayed string?

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  • Is there any way to force an iPhone application to relaunch?

    - by Jared P
    Basically -[UIApplication openURL:] would be perfect, if it wasn't for the fact that it doesn't work within the same application (at least on simulator -- if this works on device someone please tell me). It's not a super big deal though if it just relaunches w/o URLness since I can obviously just persist some data. The goal of this is to essentially free all memory in the application and call all of the loading procedures.

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  • Safe way of iterating over an array or dictionary and deleting entries?

    - by mystify
    I've heard that it is a bad idea to do something like this. But I am sure there is some rule of thumb which can help to get that right. When I iterate over an NSMutableDictionary or NSMutableArray often I need to get rid of entries. Typical case: You iterate over it, and compare the entry against something. Sometimes the result is "don't need anymore" and you have to remove it. But doing so affects the index of all the rows, doesn't it? So how could I safely iterate over it without accidently exceeding bounds or jumping over an element that hasn't been checked?

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  • Best way of obfuscating / encrypting form data on the iPhone

    - by cannyboy
    I want to create an app which holds sensitive information (imagine it's bank account details, thought it's not). The user enters this information on a form the first time the app starts up. I want this info to be saved, and available, any time the user uses the app (without having to enter a password). However, if the iPhone has a password lock on it, and is stolen, I don't want the data to be easily accessible from the file system. What is the best way of encrypting or obfuscating the data? There is not a lot of data, just a dozen NSStrings from the UITextFields on the form. I'm aware there are encryption export restrictions on the iPhone for non-US developers (I am in UK), so I would prefer to avoid going jumping through any of Apple's app submission hoops to get it on the store.

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  • How to check in which position (landscape or portrait) os the iPhone now?

    - by Knodel
    I have an app with a tab bar, and nav controllers in each tab. When user shakes the device, a UIImageView appears as a child view in the nav controller. But the UIImageView must contain a special image, depending on the device's current orientation. If I write just - (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation) if (interfaceOrientation == UIInterfaceOrientationPortrait|| interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) { //Code } else if (interfaceOrientation == UIInterfaceOrientationLandscapeRight||interfaceOrientation == UIInterfaceOrientationLandscapeLeft) { //Code } } The view just goes crazy if user rotated the device before shaking. Is there a method to get iPhones current orientation?

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  • How can I define a method with multiple optional arguments in Obj-C

    - by The Dark Bug Returns
    I want to be able to update two sets of identical buttons with one function. Also I don't want to update all the buttons, only some of them. Can I have a function like this?: -(void) updateFields{ updateButton1 : (Bool) x updateButton2 : (Bool) y updateButton3 : (Bool) z } The implementation will look like this: [button1_1 setEnabled:x]; [button1_2 setEnabled:x]; //called only if updateButton1 is given an argument [button2_1 setEnabled:y]; etc...

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  • Month TableView Organizer

    - by rson
    I need to create a table view with 1 or 2 sections, depending on certain conditions. The first section needs to contain all of the remaining months of the current year, and the second section contains the preceding months of the next year, up to but not including the current month. Example: 2009 November December 2010 January February March April May June July August September October This would be the scenario with the current month of November. However, if it were January, there would be only 1 section containing all 12 months of the current year. This all needs to be dependent on the date settings of the phone.

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  • How do I package an SDK (static lib + xibs) for the iPhone?

    - by twhipple
    I am creating an SDK for a client that includes predefined view controllers. What is the recommended way to package everything (static lib, .xib(s), and .png(s)) for easy use? SDKs that I've used (e.g. Pinch Media) do a good job of just providing a .h and .a file that expose only user accessible functionality and hiding everything else. As I read Apple's documentation, a framework would be ideal but is not permitted on iPhoneOS. Some key requirements: Don't expose source or object internals. Be easy to use & set up. Work on both the device and simulator. Thanks!

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  • search substring from mutable array in iphone

    - by user566431
    how to search substring from mutable array? NSMutableArrray names having string values, searchText is a substring to search from name array values. for (NSString *sTemp in names) { NSRange titleResultsRange = [sTemp rangeOfString:searchText options:NSCaseInsensitiveSearch]; //NSLog(@"sTemp = %@, searchText = %@",sTemp,searchText); NSLog(@"%@",titleResultsRange.length); if (titleResultsRange.length > 0) [Items addObject:sTemp]; }

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  • Define background Image with UIImage

    - by Wohoo Summer
    I am using header file to set the background for my application and I have something like #define backgroundImage [UIColor colorWithPatternImage:[UIImage imageNamed:@"background.jpeg"]] but I want use UIImageView instead of UIColor. I know I can do: UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 480) [imageView setImage:[UIImage imageNamed:@"background.png"]]; self.tableView.backgroundView = imageView; but how do I use it with #define?

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  • how to load local html file into uiwebview iphone

    - by madcoderz
    I'm trying to load a html file into my UIWebView but it won't work. Here's the stage: I have a folder called html_files in my project. Then I created a webView in interface builder and assigned an outlet to it in the viewController. This is the code I'm using to append the html file: -(void)viewDidLoad { NSString *htmlFile = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"html" inDirectory:@"html_files"]; NSData *htmlData = [NSData dataWithContentsOfFile:htmlFile]; [webView loadData:htmlData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:[NSURL URLWithString:@""]]; [super viewDidLoad]; } That won't work and the UIWebView is blank. I'd appreciate some help.

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  • Help moving multiple images at once with touches

    - by daveMac
    Here is my problem: I am trying to move a puzzle piece around the screen and then connect to the other piece if they are in close proximity. I have achieved this, though it is perhaps a little odd the way I did. My problem though is that once they have connected, I can't figure out how to move them as one image, instead of two separate entities. I would really appreciate any help or suggestions. Here is a sample of what I have been doing: (void)touchesMovedNSSet *)touches withEventUIEvent *)event{ UITouch *touch = [touches anyObject]; [self dispatchTouchEvent:[touch view] toPosition:[touch locationInView:self.view]]; } -(void)dispatchTouchEventUIView *)theView toPositionCGPoint)position{ if ((CGRectContainsPoint([picture frame], position))) { picture.center = position; } if (CGRectContainsPoint([picture2 frame], position)) { picture2.center = position; } }

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  • Obj-C memory management for an NSView * instance variable

    - by massimoperi
    My custom view has a subview as an instance variable. Here is a sample interface: @interface MyCustomView : NSView { NSView *aSubview; } @end Then, in the .m file, I initialize aSubView and add it to the custom view. - (id)init { self = [super initWithFrame:CGRectMakeFrame(0.0, 0.0, 320.0, 480.0); if (self) { aSubview = [[NSView alloc] initWithFrame(0.0, 0.0, 100.0, 100.0); [self addSubview:aSubview]; } return self; } Where should I release aSubView? In the -dealloc method? - (void)dealloc { [aSubView release]; [super dealloc]; } Or directly after adding it to the custom view in the -init method? - (id)init { [...] [self addSubview:aSubview]; [aSubview release]; [...] } Which one is the best implementation?

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  • Why this kind of release doesn't work?

    - by parkyprg
    Hello, I have a newbie question about the following: - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { NSArray *anArray; anArray = [dictionary objectForKey: [NSString stringWithFormat:@"%d", section]]; //here dictionary is of type NSDictionary, initialized in another place. AnObject *obj = [[AnObject alloc] init]; obj = [anArray objectAtIndex:0]; [anArray release]; return obj.title; } If I run it as it is I will get an error. If I don't put [anArray release] it works just fine. I don't quite understand why is this happening? Thanks.

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  • how can i show ccessarychecked cell values in alertbox

    - by adnan
    i have created uitableview and cell in uitableview are accessarychecked . i have implemented an action named -(IBAction) checkBoxClicked . what i need is that i wanted to show accessarychecked cell values in alertbox when i click on button this is the code which i have written #import "ViewController.h" @implementation ViewController @synthesize cell; - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 7; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { cell= [tableView dequeueReusableCellWithIdentifier:@"cell"]; if (cell == nil) { cell = [[ UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"]; } cell.textLabel.text = [myarray objectAtIndex:indexPath.row]; /* NSString *imagefile = [[NSBundle mainBundle] pathForResource:@"cellimage" ofType:@"png"]; UIImage *ui = [[UIImage alloc] initWithContentsOfFile:imagefile]; cell.imageView.image = ui;*/ NSString *check = [[NSBundle mainBundle] pathForResource:@"checkbox_not_ticked" ofType:@"png"]; UIImage *bi = [[UIImage alloc] initWithContentsOfFile:check]; cell.imageView.image = bi; cell.accessoryType = UITableViewCellAccessoryNone; return cell; [cell release]; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { cell = [tableView cellForRowAtIndexPath:indexPath]; if (cell.accessoryType == UITableViewCellAccessoryNone) { cell.accessoryType = UITableViewCellAccessoryCheckmark; } else { cell.accessoryType = UITableViewCellAccessoryNone; } } -(IBAction) checkBoxClicked { NSArray *array = [[NSArray alloc] initWithArray:[myarray objectAtIndex:cell.accessoryType]:UITableViewCellAccessoryCheckmark]; if (array.cell.accessoryType == UITableViewCellAccessoryCheckmark) { UIAlertView *msg = [[ UIAlertView alloc] initWithTitle:@"selected items are given: " message:array delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil ]; [msg show ]; [msg release]; [myarray release]; } } //-(IBAction)checkBoxClicked{} - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } #pragma mark - View lifecycle - (void)viewDidLoad { myarray = [[NSArray alloc] initWithObjects:@"mondey",@"tuesday", @"wednesday",@"thursday",@"friday",@"saturday",@"sundey", nil]; [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } - (void)viewDidUnload { [myarray release]; [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } @end

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