Int from NSData
Hi all, I have a NSData object with 4 bytes length. I know this 4 bytes construcuts a positive integer. How should I get the int from those NSdata object? ...
objective-c
Received memory warning. Level=1 when showing a UIImagePickerController
This is driving me crazy!!! I'm getting a "Received memory warning. Level=1" whenever I attempt to show a UIImagePickerController with a sourceType = UIImagePickerControllerSourceTypeCamera. Here is the code from my viewDidLoad where I set things up: - (void)viewDidLoad { [super viewDidLoad]; // Set card table green felt...
objective C sequential launching thread
Hello all, I have a scenario, working on iPhone development. I got 3 threads , 2 thread performs XML parsing operation and the last one verification operation. How to run them sequentially. Any help!. ...
Memory Leak the second time the view loads.
i been cracking my head over this memory leak.. my datasource is mutabledictionary..that i load in the viewdidload. if i dont retain it. i dont have access it it in cellforrowatindexpath. but when i retain it.. it shows up as a memory leak in instruments. i have tried so many different variations.. doesnt seem to get it right. here is...
Use NSPredicate for matching id's in two arrays
Hello i have a maybe easy question but i cant handle it yet. I have a Modelclass 'Location' which holds an Array with Category ID's (12, 23, 56). Then i have an Array with all available Category ID's (1,2,3,4,5,6,7,...) All this Categories have an ID are shown in a TableView and are able to select or not. I show a punch of Markers on a...
This class is not a key value coding-compliant
I have created a three files SettingsViewController.h, SettingsViewController.m and SettingsViewController.xib. I am showing the SwttingsViewController.xib on click of a cell in a row. There is a label and slider on xib file. It works fine. But after creating connections using interface builder. i.e drag-drop from redLabel outlet to my ...
is it possible to maintain an authorization reference indefinately (cocoa)
Hello, i'm using AuthorizationExecuteWithPrivileges to run a shell script with elevated privileges. After some time i am required to reauthorize again in order for this to work. Is there a way to set a custom (veeery long) timeout on the authorization so that i would only get a password dialog for my application once and would be able to...
Should I avoid creating lots of variables?
Hi, I have two possibilities: 1) Store an object in a variable and use that variable in my code. But this uses memory to store the object right? NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; BOOL bool1 = [userDefaults boolForKey: key1]; BOOL bool2 = [userDefaults boolForKey: key2]; 2) Don't store it in a vari...
White Color to RGB not correct.
Check out the code const CGFloat *c = CGColorGetComponents([[UIColor whiteColor] CGColor]); slider1.value = c[0]; slider2.value = c[1]; slider3.value = c[2]; c[2] is getting 0. For whiteColor all RGB values shld be 1.0. Why its not returning correct value for the blue component? Any code snippet? for getting RGB values from white c...
How to send authenticated requests to Google Reader?
It seems that Google has disabled the old way of sending cookie SID to their Google Data Services, specifically Google Reader. This way does not work at least for me: //create request NSString* content = [NSString stringWithFormat:@"accountType=HOSTED_OR_GOOGLE&Email=%@&Passwd=%@&service=ah&source=myapp", [loginView username].text, [lo...
Get new mails notification from GMail?
Is there an easy way to get a notification from Google when a Google Mail user gets a new mail? Read- /write support, etc. is not needed. I'm looking for solutions in C, Objective-C or C++. ...
Order of Items in Plist.
Hi .. I am using a Plist..but i want to retrive the items from Plist in its original order(not in sorted order). How I will do this..?? ...
NSButtonCell created programmatically doesn't highlight when clicked
I wanted to have a button appear in a table view as the first element on the last row instead of the normal data, so I created a subclass of NSTableView and overwrote the preparedCellAtColumn:row: method to generate the desired behaviour on the last row. - (NSCell *)preparedCellAtColumn:(NSInteger)column row:(NSInteger)row { if(row ...
How to create Custom TabBarItems?
Hi, Is there any way to create the custom tabBarItems. Here is the reference of how i want those items to look like. Thanks, Yogesh ...
Optimising simple animations with only a few frames
Hi there everyone. I've managed to set up a button which when pressed displays a thought bubble. The bubble appears first as a smaller bubble, then a slightly larger bubble, then finally the full sized bubble, all in quick succession. I've managed to do this just fine with the following code, I'm just wondering if this really is the best...
Testing if an object has been deallocated
I have a situation where occasionally my -tableView: numberOfRowsInSection: method asks for the count of a deallocated NSArray. I'd like to be able to test for this array being deallocated in a way that's safe and doesn't make a call to a zombie. My code currently looks like: -(NSInteger)tableView:(UITableView *)table numberOfRowsInSec...
Refresh data in UITableView
I have a UITableView and I charged it with data in viewDidAppear. and it run successfully. The Problem is I should refresh the data of the UITableView frequently (every 300 seconds). So I defined a timer and charged the UITableView's dataSource when the timer throws the event of finishing time interval (300 secs). BUT Nothing change !!!...
I want a page curl effect for ModalViewController
how can we give page curl effect for ModalViewController can we give custom animation if i use this code PageThreeViewController *pagethreecontroller = [[PageThreeViewController alloc] initWithNibName:@"PageThreeViewController" bundle:nil]; //UIViewAnimationTransition trans = UIViewAnimationTransitionCurlUp; [UIV...
iPad - UIViewController only kinda rotates
Alright, so here's the problem I'm having (it's a weird one.) I added a new UIViewController for the app I'm building. The first view controller works perfectly, orients correctly, etc. The second one orients horribly. This is how it looks if you start in landscape and then change orientation to portrait: And then, if you start in p...
problem with tag in UIView
HI I have created a chain of UIViews(like tableview cells) on a content view and each UIView has a button on it which(button) has a unique tag associated with it. Now what I am doing is when the user taps a button a tableView gets loaded just below the view which contains the button which was tapped and the below UIViews gets shifted t...