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  • Trying to understand crash log output

    - by John Smith
    I'm trying to understand debug output from a crash log. I have the following line from the crashlog: 22 FG 0x00022b94 0x1000 + 138132 I understand how to use atos on 0x00022b94 to get the source code location. What I would like to know is why the crash log helpfully splits that number into 0x1000 + 138132? I have googled and the googles failed me.

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  • Converting a CGRect of a object in a subview in UITableViewCell in UITable to CGRect with respect to

    - by user362956
    Hey, I want to converte a CGRect "aRect" of a object in a subview in UITableViewCell in UITable to CGRect with respect to self.view. The problem is that aRect is with respect to the subview in the table cell. But i want to make it so that it is with respect to self.view What i tried is this rect = [self.view convertRect:aRect.frame toView:cellView]; but it doesn't work. So how to convert it?

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  • set the width of a UIText view based on the content size property

    - by Mrwolfy
    TextView.contentSize.width does not work to set the UITextView's .frame.size.width. [TextView setFrame:CGRectMake(TextView.frame.origin.x, TextView.frame.origin.y, TextView.contentSize.width, TextView.contentSize.height)]; Setting the UITextView's frame height to the contentSize.height property works to make the view's frame scale to the proper size for the current vertical size of the content. For some reason, the width of the view's frame does not respond in the same way. It just remains the same size regardless of the amount of text input. When I log the contentsize of the UITextView dynamically, as I am typing in text to the view, the height property chnges, while the width does not. Makes me wonder what the width property is doing, what's it for.

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  • UIWebView loading/randering error after resize

    - by user1343869
    I have a screen with 2 UIWebView. The user can drag the views left and right to make the right and left view bigger (respectively) and the other one smaller (like UISplitView but customized and self made). I'm loading .html pages from strings and local .css files. After resizing the UIWebView If I load a new page there will be a black or white stripe on the right side of the UIWebView. This stripe is part of the web view (not a space between the views), and if I scroll the webView up and then down, the stripe will vanish and the page will be presented correctly. This issue occurs only in iOS 6 and only on the device (on the simulator it doesn't occur). Some notes: - The .css file contains elements with fixed position. Changing to absolute position didn't solve the problem but changed it: the black stripre occured during the drag. - As slower the drag is, the stripe will be bigger. - After resize the page is presented correctly, only when I load a new page the stripe is shown. - The time between resizing the web view and loading a page doesn't matter, it can be straight away or after couple of minutes. Now, as a workaround I create a new UIWebView and copy the old properties to the new. But than I need to reload the presented page which make a white blink... Any idea why does it happens, and how to fix it?

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  • Installing Qt libraries on OS X

    - by AXL79
    I'm trying to install the Qt 4.8.3 precompiled libraries downloaded from http://qt-project.org/downloads on my OS X 10.6 machine. Unfortunately the package doesn't seem to actually install any libraries (although it claims to do so in the readme) I've read loads of instructions of how to configure and build Qt from source but these are precompiled, as in 'you don't have to compile them yourself'. So I must be missing something. Is there anyone out there who knows how to actually install Qt on OS X so that it is possible to link against them -without- building the whole thing from source. Thanks

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  • Pass NSURL from One Class To Another

    - by user717452
    In my appDelegate in didFinishLaunchingWithOptions, I have the following: NSURL *url = [NSURL URLWithString:@"http://www.thejenkinsinstitute.com/Journal/"]; NSString *content = [NSString stringWithContentsOfURL:url]; NSString * aString = content; NSMutableArray *substrings = [NSMutableArray new]; NSScanner *scanner = [NSScanner scannerWithString:aString]; [scanner scanUpToString:@"<p>To Download the PDF, " intoString:nil]; // Scan all characters before # while(![scanner isAtEnd]) { NSString *substring = nil; [scanner scanString:@"<p>To Download the PDF, <a href=\"" intoString:nil]; // Scan the # character if([scanner scanUpToString:@"\"" intoString:&substring]) { // If the space immediately followed the #, this will be skipped [substrings addObject:substring]; } [scanner scanUpToString:@"" intoString:nil]; // Scan all characters before next # } // do something with substrings NSString *URLstring = [substrings objectAtIndex:0]; self.theheurl = [NSURL URLWithString:URLstring]; NSLog(@"%@", theheurl); [substrings release]; The console printout for theheurl gives me a valid URL ending in .pdf. In the class I would like to load the URL, I have the following: - (void)viewWillAppear:(BOOL)animated { _appdelegate.theheurl = currentURL; NSLog(@"%@", currentURL); NSLog(@"%@", _appdelegate.theheurl); [worship loadRequest:[NSURLRequest requestWithURL:currentURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60.0]]; timer = [NSTimer scheduledTimerWithTimeInterval:(1.0/2.0) target:self selector:@selector(tick) userInfo:nil repeats:YES]; [super viewWillAppear:YES]; } However, both NSLogs in that class come back null. What am I Doing wrong in getting the NSURL from the AppDelegate to the class to load it?

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  • GCC compiler -- bug or unspecified behavior?

    - by Jared P
    When I have conflicting definitions of the ivars of a class in objective-c (not redeclaring the class in the same file, but rather naming the same class with diff ivars, no warnings or better yet errors are issued by the compiler. However, both sets of ivars are useable by the appropriate methods in the respective files. For instance Foo.m: @interface foo { int a; } - (int)method; @end @implementation foo - (int)method { return a; } @end Bar.m: @interface foo { float baz; } @end @implementation foo (category) - (float)blah { return baz; } @end compiles without warnings or errors. Is this intentional? Is this an unchecked error? (for the record, a and baz are actually the same memory location.)

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  • How does Core Data work

    - by Jason
    Ive tried to gather information on as to how core data works, but can someone give me a clear explanation of all the stuff required...For instance NSDataContext, Fetchcontroller, NSDataModel, Presistent... Perhaps all the steps involved to get a data...Now I'm also unclear about an SQLite file, like how do we load the data into the core data , once we have created our entities etc.. Thanks

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  • App Crashes on Opening - PROBLEM

    - by Guest
    I have an app that keeps crashing as soon as it starts. Not sure why. I have image views and buttons in the main xib file. The main xib file is not mainwindow, it is firstview, so i changed it in the plist to the firstview. There may be something wrong with the xib file for firstview but it only has buttons and images and a view in the back. There are no warnings or errors when I run it, just Debugging Terminated when it crashes. PLEASE HELP

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  • Portrait video to landscape

    - by dappa
    I am aware questions like this one may already be out there but for the sake of others like me I will go ahead and ask I have a app that is set to only allow portrait orientation but this setting affects my videos as I would like only the videos to be able to play in landscape also. Is there a method I can add unto my .m file to make this work? Here is my code; #import "BIDVideosViewController.h" @interface BIDVideosViewController () @end @implementation BIDVideosViewController @synthesize moviePlayer ; @synthesize tableList; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; UITableView *table = [[UITableView alloc]initWithFrame:self.view.bounds]; [table setDelegate:self]; [table setDataSource:self]; [self.view addSubview:table]; tableList = [[NSMutableArray alloc] initWithObjects:@"Gangan",@"SwimGood",@"German Ice", nil]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [tableList count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *DisclosureButtonIdentifier = @"DisclosurebutotonIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:DisclosureButtonIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:DisclosureButtonIdentifier]; } NSInteger row = [indexPath row]; NSString *rowString = [tableList objectAtIndex:row]; cell.textLabel.text = rowString; return cell; } -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { { NSBundle *str = [tableList objectAtIndex:indexPath.row]; if ([str isEqual:@"Gangan"]) { NSBundle *bundle = [NSBundle mainBundle]; NSString *thePath = [bundle pathForResource:@"Gangan" ofType:@"mp4"]; NSURL *theurl = [NSURL fileURLWithPath:thePath]; moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:theurl]; [moviePlayer setMovieSourceType:MPMovieSourceTypeFile]; [self.view addSubview:moviePlayer.view]; [moviePlayer setFullscreen:YES]; [moviePlayer play]; } else if ([str isEqual:@"SwimGood"]) { NSBundle *bundle = [NSBundle mainBundle]; NSString *thePath = [bundle pathForResource:@"SwimGood" ofType:@"mp4"]; NSURL *theurl = [NSURL fileURLWithPath:thePath]; moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:theurl]; [moviePlayer setMovieSourceType:MPMovieSourceTypeFile]; [self.view addSubview:moviePlayer.view]; [moviePlayer setFullscreen:YES]; [moviePlayer play]; } else if ([str isEqual:@"German Ice"]) { NSBundle *bundle = [NSBundle mainBundle]; NSString *thePath = [bundle pathForResource:@"German Ice" ofType:@"mp4"]; NSURL *theurl = [NSURL fileURLWithPath:thePath]; moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:theurl]; [moviePlayer setMovieSourceType:MPMovieSourceTypeFile]; [self.view addSubview:moviePlayer.view]; [moviePlayer setFullscreen:YES]; [moviePlayer play]; } } } @end

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  • Line Graph CGPoints from NSMutableArray

    - by Mattog1456
    I have been trying to adapt the code from the accelerometer example such that when the user depresses a uibutton a point is added to a line graph. Working on the converting two floats, which are the result of calculate as below into a CGPoint and converting the CGPoint into an NSValue and then adding this to a NSMutableArray with the following -(IBAction)calculate:(id)sender { self.points = [NSMutableArray array]; CGPoint pt = CGPointMake(d, c); [self.points addObject:[NSValue valueWithCGPoint:pt]]; NSLog(@"%@", NSStringFromCGPoint(pt)); NSLog(@"%@", [NSString stringWithFormat:@"%d points", self.points.count ]); } But for some reason I am only getting one object stored in the array, it seems everytime push the calculate button the object pt gets overwritten, on the plus side it has the correct x,y coords. Any ideas on this one? UPDATE Removed self.points = [NSMutableArray array]; and placed it in view did load, also set the first points to 0,0. so that is working ok. Now the next problem is that I have a Graph subclass where the CG Drawing is taking place. I am trying to figure out a simple way to be able to access the above NSMutableArray which is in a ViewController class from the graph class. Am so close to the end but am really stuck, any help would be great. Still trying to draw a line graph on a UIView which is on a UIScrollview. The draw rect method is in the UIView Subclass and everything is working there, I have gridlines and labels on the axis and I can draw manually onto it. But the problem I have is that I cannot read the NSMutableArray of the CGPoints, which are the x and y coords. The ViewController performs a calculation and the results are written to the NSMutable array and this is all working fine as well, I can see the CGpoints and their values being written with NSLogs in the ViewController. I have tried various ways to set the NSMutableArray up as a global but to no avail, everything runs but while I can see the points being written in the ViewController they are just not visible to the UIView Subclass. I have also tried to use the addObserver and observeValueForKeyPath methods and once again while everything runs the subclass cannot see the array. Any ideas, suggestions, tips or thoughts would be great

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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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  • 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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  • Explanation of NSMutableURLRequest : setHTTPMethod

    - by kkmoslehpour
    I am new to objective c programming. I am currently trying to insert data into mysql database. I have read a couple links on this and could not find the exact answer I am looking for. Here is what I am trying to do: I have my app that user inputs a name in a text field and once the press the add button, it makes a connection to my php file and my php file does the rest of the work (using POST method) and adds the name to the mysql dataase. I have seen a lot of people use NSMutableURLRequest : setHTTPMethod :POST`` in their code (in my case my php file does that and I don't haveNSMutableURLRequest` included in my code and it works perfectly fine.) My questions are: Are there any benefits of including NSMutableURLRequest in your code when you can just call your php code to take care of the POST for you? What does NSMutableURLRequest exactly do and which way is more efficient?

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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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  • 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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  • NSTimer won't stop it only resets when invalidated & released

    - by J Fries
    When I press my stop button to stop the timer it just resets to the original time and begins counting down again. I have looked everywhere and all I have found is "invalidate" and it isn't working. I want the time to stop when I hit stop and the label to display the original time. I also turned off automatic counting so I could try releasing and it is giving me an error: 0x10e20a5: movl 16(%edx), %edx EXC_BAD_ACCESS (code=2, address=0x10) `NSTimer *rockettTimer; int rocketCount; @interface FirstViewController () @property (strong, nonatomic) IBOutlet UILabel *rocketTimer; - (IBAction)stopButton:(id)sender; - (IBAction)startButton:(id)sender; @end @implementation FirstViewController @synthesize rocketTimer; -(void) rocketTimerRun{ rocketCount = rocketCount - 1; int minuts = rocketCount / 60; int seconds = rocketCount - (minuts * 60); NSString *timerOutput = [NSString stringWithFormat:@"%d:%.2d", minuts, seconds]; rocketTimer.text = timerOutput; } - (IBAction)startButton:(id)sender { rocketCount = 180; rockettTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(rocketTimerRun) userInfo:nil repeats:YES]; - (IBAction)stopButton:(id)sender { [rockettTimer invalidate]; //[rockettTimer release]; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } - (void)viewDidUnload { [self setRocketTimer:nil]; [super viewDidUnload]; // Release any retained subviews of the main view. } - (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation { if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) { return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } else { return YES; } } @end`

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  • Changing UITableViewCell height on a grouped cell doesn't look good

    - by Sheehan Alam
    I have a UITableView with 3 sections. In the first section I have 2 grouped cells. I am modifying the first cell to be larger than the second. Though the first cell resizes, it seems to mess up the cell below it. How can I resolve this? - (CGFloat)tableView:(UITableView *)tblView heightForRowAtIndexPath:(NSIndexPath *)indexPath { CGFloat rowHeight; if(indexPath.section == kBioSection) { switch(indexPath.row) { case kBioSectionDescriptionRow: rowHeight = 100; break; } } else { rowHeight = 50; } return rowHeight; }

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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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