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  • Ipad SplitViewController navigating to another view

    - by nishantcm
    Hi, I am trying to navigate to a different view in the detailview of the splitviewcontroller. I dont want the new view to display in the split view. I am using this code to change views. This works ok in portrait orientation, but in landscape the split view table view still appears. Can anyone help with this? Next *any = [[Next alloc] initWithNibName:@"Next" bundle:nil]; [self.view addSubview:any.view];

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  • iPad orientation on launch problem in portrait (bottom home button)

    - by edie
    Hi.... I've an iPad app that supports all orientation... my problem was on the start up of the application. In case of landScapeRight and landScapeLeft and portrait(top home button) the views shows correctly but when the app start in portrait (bottom home button) the views show in landscape mode... I've implemented the - (void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation When I change the apps orientation the views shows correctly.

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  • Xcode 4 Tips and Tricks for Xcode 3 users

    - by Ben Clayton
    As most of you have probably seen, Xcode 4 has been released officially today. Now I know that plenty of devs out there have been using the preview versions, and it'd be great if people could post any great tips, tricks, or keyboard shortcuts they've learned using those version now they're no longer under NDA. This could be especially useful for those upgrading from Xcode 3 (like me, downloading right now). Note: Apple have released a 'transition guide' that has plenty of stuff in about getting from version 3 to version 4, but I bet there are loads of great tricks people out there have learned that aren't in there.

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  • Generic Any/Attach/Add function for Entity Framework

    - by Matt Thrower
    Looking through my EF classes, they're littered with code that looks like this: if (_myContext.[EntityType].Any(d => d.RowId == dc.RowId)) { _myContext.[EntityType].Attach(dc); _myContext.Entry(dc).State = EntityState.Modified; } else { _myContext.[EntityType].Add(dc); } It's the same thing over and over, and is clearly itching to be handled by a generic function. However, I'm not sure how you'd go about handling the need for it to deal with a variety of unexpected entity types. A good example to get me started would be most appreciated.

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  • Releasing instance if service not enabled?

    - by fuzzygoat
    I would just like to check if I have this right, I am creating an instance of CCLocationManager and then checking if location services are enabled. If it is not enabled I then report an error, release the instance and carry on, does that look/sound right? locationManager = [[CLLocationManager alloc] init]; BOOL supportsService = [locationManager locationServicesEnabled]; if(supportsService) { [locationManager setDelegate:self]; [locationManager setDistanceFilter:kCLDistanceFilterNone]; [locationManager setDesiredAccuracy:kCLLocationAccuracyBest]; [locationManager startUpdatingLocation]; } else { NSLog(@"Location services not enabled."); [locationManager release]; } ... ... ... more code cheers gary

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  • What can cause Bonjour to not call me back during browsing?

    - by millenomi
    I have a rather popular Bonjour-based application in App Store. It works perfectly, but around 0.2% of my users report a bizarre bug: "no arrows appear on the edges of the screen, so I can't share stuff with other people!". Needless to say, displaying these arrows is tied to the browsing of a particular Bonjour service on the local domain. The problem is, the Apple review team seems to intermittently happen to be in this 0.2%. This isn't good for review results, as you might imagine. No matter how much I try, I cannot reproduce this bug. From the few logs I have, it looks like my app is running correctly, just not receiving NSNetServiceBrowser delegate calls. What can cause this? Things I've tried: Having a shorter service name < 14 chars in length to be in spec. Publishing on @"local." rather than @"" (aka Go Look For The Default Registration Domain). My app is rather useless on a wide-area network anyway. Things I haven't tried: restarting the browsing machinery periodically. (I have two browsers, though, one looking for the legacy longer name, one for the new shorter one.) What to do?

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  • Getting exception when coming back while loading data in controller while using LibXml.

    - by user133611
    Hi All, In my project i using LibXml to parse data, when i select a row in first controller i will take to next conttroller where i will get data using libxml if i click on the back button while loading the page i am getting exception. if i click afetr loading is completed it is working fine ca any one help me. the exception is showing here (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { // Process the downloaded chunk of data. xmlParseChunk(_xmlParserContext, (const char *)[data bytes], [data length], 0); } Thank You

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  • Dynamically add a new row as Add in UITableView in edit mode?

    - by David.Chu.ca
    I have a table view with 0 or n rows of data from datastore. I added a customized Edit button on the right of the view's navigation bar. By default, when the edit button is clicked, in the action event, I set the view as edit mode: [self.tableView setEditing:YES animated:YES]; I would like to add a row at the end of the table view with Add button as an accessory on the left when the table view is in edit mode. And the "Add" row will not be displayed when the view is not in edit mode. This is very similar to the case of iPhon'e Contacts application when a contact is in edit mode. I am not sure if I need to add a row dynamically, and how if so? An alternative way I guess is to add more row when tableView:numberOfRowsInSection: is called? If later is the case, I have to make it hidden when the view is not in edit mode and visible when the view is in edit.

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  • to-many Core Data fetch request behaves oddly with a new store

    - by Giao
    I have two entities, Department and Person. Department has a to-many relationship to Person. The Person entity has a hireDate property. I'm using the predicate "count(person) = 0 OR none person.hireDate %@" to find Departments without any Persons in them or Departments that haven't hired anyone since a recent date. When the app first starts up (new user experience) and Departments are inserted and no Person have been inserted, the fetch request with this predicate returns nothing. However, if I create insert a new Person entity and delete it, then save the store, the fetch request will return all the Departments. I've found a work around where, I just insert a new Person and delete it, then save the store, the fetch request as I expected it to work. I've found that inserting a new Person and deleting it without saving will not correct the problem. Is this a bug with Core Data or is this a bug with how I've designed my app?

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  • EXC_BAD_ACCESS when not using self.

    - by chris
    I got nabbed by the following bug again and would like some clarification to exactly why it is a bug. I have a simple UITableView that loads some data: // myclass.h @property (nonatomic, retain) NSArray *myData // myclass.m @synthesize myData; - (void) viewDidLoad { ... myData = someDataSource // note the lack of self } - (UITableViewCell *) cellForRowAtIndexPath ... { ... cell.textLabel.text = [self.myData objectAtIndex:indexPath.row]; // EXC_BAD_ACCESS } The table first loads fine, but when scrolling up enough that one of the cells is totally out of the view I then get the EXC_BAD_ACCESS error. Am I missing something in regards to @property retain. My understanding is that it releases anything that the pointer was previously pointing to before the reassignment. If I am correct then why would not using self. cause any problems? Thanks for the help.

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  • How can i call UItimer form one viewcontroller from unother viewcontroller?

    - by Bala
    At first time i call the timer like this in Third viewcontroller timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(targetMethod) userInfo:nil repeats:NO]; Then timer called the targetMethod -(void)targetMethod { First * sVC = [[First alloc] initWithNibName:@"First" bundle:[NSBundle mainBundle]]; [self presentModalViewController:sVC animated:YES]; [sVC release]; [timer invalidate]; } First viewcontroller opened.. In First viewcontroller had one button.In button action i wrote (IBAction) Action:(id)sender { [self dismissModalViewControllerAnimated:YES]; Third *BVC=[[Third alloc]init]; [Bvc TimerStart]; Timestart is function i start timer in this function.. i want to call Third viewcontroller timer function this place } timer started..But view didn't open (first )viewcontroller....... Please help me......

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  • Add programmatically clickable Button with custom Views layouted in InterfaceBuilder

    - by allisone
    I have a UIScrollView. In there I add buttons programmatically. Right now I just use UIButton and set one title. But I need to have an UIImage View in there, that will change upon certain events, Text that will change too etc. and I would like to style that in Interface Builder, but I can't figure out how to do this. Which class should I extend, and what kind of xib should I create and what in there, so that in the end I can make the right connections and so that I can listen for UIControlEventTouchDown of that Button.

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  • Load a UIView from a NIB

    - by Winder
    I have been using UIViewControllers and initWithNibName with much success, basically using them as a convenient way to design the view with Interface Builder. Unfortunately I have built a hierarchy of views before noticing this line in the UIViewController documentation: Note: You should not use view controllers to manage views that fill only a part of their window My question is this: Having a very simple NIB that only has a UIView in addition to the default First Responder and Owning Object, what is the simplest way to load the UIView into my code? I have not been able to get loadNibNamed:owner:options: to work at this point, but suspect the answer will involve it somehow.

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  • Does NSKeyedUnarchiver autorelease?

    - by Lee Probert
    I'm doing some archiving to a property list and when I unarchive my data using NSKeyedUnarchiver I find that my app crashes if I release the object afterward. I was wondering if the finishDecoding message also autoreleases the object. Seems weird that it crashes when I release it.

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  • UITableView setting standalone delegate object?

    - by fuzzygoat
    Hi have setup a sample application using a UITableView. Initially I did this by conforming my controller to and , added a tableView in IB and connected "datasource" & "delegate" to Files Owner. It all works so thats good. What I have been trying out is creating my own class for the delegate. I created a new class and added and , but quickly found I could not connect the tableViewdataSource / delegate. To solve this I added an "Object" (NSObject) in IB and set it to my new class. I then connected the dataSource and delegate outlets to this object. It sort of works, the app runs and displays the tableView, but when I try and scroll the table the app crashes. Can I ask if I am going about this the right way? gary

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  • Publishing similar apps in AppStore

    - by John
    Hello guys, I have some questions that I think some one here can help me ... I have published 5 apps in AppStore that brings news to the users, for different countries. One app per country, because no one want's to read the news of other countrys. Now, I have submitted 3 more apps to publish and Apple reject it, because they say that I need to use "In App Purchase" because the apps are similar ... I have seen many similar apps published by the same user .. so, my question is, how can I publish many similar apps without "In App Purchase"? I have used the same "bundle Id" for all of my apps .. Is it wrong? I need the create one bundle Id per app to get this work and the ok by Apple? Thanks you very much and sorry for my limited english!!

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  • Where should I remove a notification observer?

    - by nevan
    I set up a notification observer in my view controll init method like so: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(saveState) name:UIApplicationWillResignActiveNotification object:nil]; Where is the best place to call removeObserver:name:object: for this notification. I'm currently calling it in my dealloc method, but wanted to know if that might cause problems.

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  • When I really need to use [NSThread sleepForTimeInterval:1];

    - by Timbo
    Hi there, I have a program that needs to use sleep. Like really needs to. In lieu of spending ages explaining why, suffice to say that it needs it. Now I'm told to split off my code into a separate thread if it requires sleep so I don't lose interface responsiveness, so I've started learning how to use NSThread. I've created a brand new program that is conceptual so to solve the issue for this example will help me in my real program. Short story is I have a class, it has instance variables and I need a loop with a sleep to be depended on the value of that instance variable. Here's what I've put together anyway, your help is very much appreciated :) Cheers Tim /// Start Test1ViewController.h /// #import <UIKit/UIKit.h> @interface Test1ViewController : UIViewController { UILabel* label; } @property (assign) IBOutlet UILabel *label; @end /// End Test1ViewController.h /// /// Start Test1ViewController.m /// #import "Test1ViewController.h" #import "MyClass.h" @implementation Test1ViewController @synthesize label; - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; label.text = @"1"; [NSThread detachNewThreadSelector:@selector(backgroundProcess) toTarget:self withObject:nil]; } - (void)backgroundProcess { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // Create an instance of a class that will eventually store a whole load of variables MyClass *aMyClassInstance = [MyClass new]; [aMyClassInstance createMyClassInstance:(@"Timbo")]; while (aMyClassInstance.myVariable--) { NSLog(@"blah = %i",aMyClassInstance.myVariable); label.text = [NSString stringWithFormat:@"blah = %d", aMyClassInstance.myVariable]; //how do I pass the new value out to the updateLabel method, or reference aMyClassInstance.myVariable? [self performSelectorOnMainThread:@selector(updateLabel) withObject:nil waitUntilDone:NO]; //the sleeping of the thread is absolutely mandatory and must be worked around. The whole point of using NSThread is so I can have sleeps [NSThread sleepForTimeInterval:1]; } [pool release]; } - (void)updateLabel {label.text = [NSString stringWithFormat:@"blah = %d", aMyClassInstance.myVariable]; // be nice if i could } - (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];} - (void)viewDidUnload {} - (void)dealloc {[super dealloc];} @end /// End Test1ViewController.m /// /// Start MyClass.h /// #import <Foundation/Foundation.h> @interface MyClass : NSObject { NSString* name; int myVariable; } @property int myVariable; @property (assign) NSString *name; - (void) createMyClassInstance: (NSString*)withName; - (int) changeVariable: (int)toAmount; @end /// End MyClass.h /// /// Start MyClass.h /// #import "MyClass.h" @implementation MyClass @synthesize name, myVariable; - (void) createMyClassInstance: (NSString*)withName{ name = withName; myVariable = 10; } - (int) changeVariable: (int)toAmount{ myVariable = toAmount; return toAmount; } @end /// End MyClass.h ///

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  • delete in tableView..

    - by totato
    I just add this methods in .h file : - (IBAction)EditTable:(id)sender; - (IBAction)DeleteButtonAction:(id)sender; and in .m file : (IBAction)DeleteButtonAction:(id)sender{ [tableList removeLastObject]; [Table reloadData]; } (IBAction) EditTable:(id)sender{ if(self.editing) { [super setEditing:NO animated:NO]; [Table setEditing:NO animated:NO]; [Table reloadData]; [self.navigationItem.leftBarButtonItem setTitle:@"Edit"]; [self.navigationItem.leftBarButtonItem setStyle:UIBarButtonItemStylePlain]; } else { [super setEditing:YES animated:YES]; [Table setEditing:YES animated:YES]; [Table reloadData]; [self.navigationItem.leftBarButtonItem setTitle:@"Done"]; [self.navigationItem.leftBarButtonItem setStyle:UIBarButtonItemStyleDone]; } } when I run the program and click the delete button (red button) the program is stop ! whats the problem ? please any help ?

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  • Bind Boolean value in Sqlite

    - by milanjansari
    Hello, Anyone have idea about how to bind Boolean in sqlite with objective - c. i know how to bind int and string but i don't know about boolean value. sqlite3_bind_int(addStmt, 1, id); sqlite3_bind_text(addStmt,3 ,[message UTF8String], -1, SQLITE_TRANSIENT); but how can i bind boolean value. Please help me. Thanks you

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  • Seek backwards and forward in CAAnimation

    - by Vladimir
    I'm trying to create a pseudo-movie player that shows layer's CAAnimation in my application. I've found a way to pause and resume animation (described in apple tech note), but can't find if it is possible to "seek" to arbitrary part of the animation, could anyone suggest what can be done here?

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  • -webkit-transition-property for translation

    - by sexyprout
    Hai. What is the transition property for translations in CSS3? I'm currently using all but I got a bug in iOS so I want to test another property. -webkit-transform: translate(-320px, 0);   -webkit-transition: ??? .5 ease-in-out; See the bug with an iOS device here (swipe horizontally), there's a kind of flash. Update: to anyone interested, I found a way to fix it thanks to Duopixel: E { -webkit-transition: all .5s ease-in-out; -webkit-transform: translate3d(0, 0, 0); // perform an "invisible" translation } // Then you can translate with translate3d(), no bug! document.querySelector('E').webkitTransform = 'translate3d(-320px, 0, 0)'

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