iphone

UIEvent has timestamp. How can I generate an equivalent value on my own?

According to the cocoa documentation, timestamp on UIEvent is "the number of seconds since system startup." It's an NSTimeInterval. I'd like to generate, as efficiently as possible, an equivalent number. Of course, I want to do this where UIEvent don't shine. :-) ...

UIPickerView with NSDictionary

I am a .NET programmer and new to Objective C. I am trying to make a UIPickerView which acts like a .NET dropdownlist. User sees the list of text and selects one and the selected value (which is the ID) is used in code. I have been browsing for almost half a day trying to figure this out. I could add a regular PickerView with list of...

iPhone team dev, do we all need the same OS?

I´m just starting iPhone development with a small team of (really young and naive) colleagues, we all are fairly new to OS X, my question is: If we are planning to develop for every iPod Touch/iPhone out there (not the iPad, I read that thing requires Snow Leopard), what problems will we encounter when sharing code (and making commits) ...

Best way to set default tint for UINavigationController

I use a lot of UINavigationControllers in my app. I am using a UIColor to set the tintcolor of the navigationBar. This works as expected, but I am trying to find an easy way to set a default tintcolor for all UINavigationControllers. What is the best way to do this? Is it subclassing the UINavigationController, or is there something ...

iphone - using NSInvocation: constant value

I am dealing with an old iPhone OS 2.x project and I want to keep compatibility, while designing for 3.x. I am using NSInvocation, is a code like this NSInvocation* invoc = [NSInvocation invocationWithMethodSignature: [cell methodSignatureForSelector: @selector(initWithStyle:reuseIdentifier:)]...

uitableview not showing data

i followed the tutorial -> http://icodeblog.com/2008/09/02/iphone-programming-tutorial-creating-a-todo-list-using-sqlite-part-2/ but the thing is my uitableview isnt showing anything from database!! i did an nslog and able to query the data..so what could be the possible error? i went through line by line with the source..but still can...

Why is UIApplicationWillChangeStatusBarFrameNotification not sent when the status bar changes height?

I've been trying to listen for changes in the status bar height – such as when the in-call status bar is shown or hidden, or the same with the internet tethering status bar – by listening for the UIApplicationWillChangeStatusBarFrameNotification notification to be sent. Fairly straightforward code here... [[NSNotificationCenter default...

Help with a compiler warning: Initialization from distinct Objective-C type when types match

Here is the function where I get the compiler warning, I can't seem to figure out what is causing it. Any help is appreciated. -(void)displaySelector{ //warning on the following line: InstanceSelectorViewController *controller = [[InstanceSelectorViewController alloc] initWithCreator:self]; [self.navController pushViewContr...

Does ASIHTTP support multi threads?

Hello everyone Does ASIHTTP support multi thread? If sure, I hope each thread link to aUIProgressbar, how can I construct the codes? Thanks interdev ...

continueTrackingWithTouch: withEvent: not being called continuously.

I have a very simply subclass of UIButton that will fire off a custom event when the button has been held for 2 seconds. To accomplish this, I overrode: // // Mouse tracking // - (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event { [super beginTrackingWithTouch:touch withEvent:event]; ...

Would you use a UITableViewController to implement a check list on the iPhone?

I am creating an application that will have a list of items that can be checked. I just implemented it as a Table View by subclassing UITableViewController. Now I am realizing that since individual items don't have a child view (i.e. clicking on an item "Dinner" does not need to pull up a child list of "Dinner Items") then maybe I shou...

Sub-viewController doesn't get autorotation notifications, bug?

If I have a view (and its controller) and I override the willAnimateRotationToInterfaceOrientation method so I can respond to autorotation events everything works fine and dandy. Now if I create another viewController and add its view to the first viewController's view via: [firstViewController.view addSubview:secondViewController.view...

iphone reading international filenames

Using Objective C, cocoa touch framework. I have few image files in my iphone application. Some file names are in english and some are in japanese like "ココ奈ごろにゃんIcon .png" I'm creating views programatically and not using IB. My code is not able to read files with name in japanese language. How can I get this work done. ...

OAuth on iPhone: using Safari or UIWebView?

Hi all, When I implement OAuth in iPhone, I have a dilemma to choose Safari or UIWebView to open the Twitter pages for user authentication? I write some advantage and disadvantage of both case: Using UIWebWeb. The disadvantage is users have to enter their credentials in our application. It's maybe risky phishing. The advantage is this a...

How to pack existing database in iphone DocumentDirectory instead of resourcePath.

I want to pack my big database with iphone app and I don't want to copy a database from resource path to document directory for readonly problem. It's have other way to pack database to document directory or remove database from resource path after copy. Thanks. ...

what is WEBDAV?

hi, i want to use webDAv server to share files among systems and (iPod or iPhone)in my iphone project.to use it,i have to use individual webserver? or is it a built in facility ? any one can help? ...

how to get app-store reivew url?

In my application,I want to remind the user to write a reivew, however,when I copy the link write a review as shown below: http://itunes.apple.com/tw/app/id MyID?mt=8 It is the same as the product link. I follow this guide: http://blogs.oreilly.com/iphone/2008/08/scraping-appstore-reviews.html The US account can successfully link to th...

how to solve ran time error NSString, sqlite3_column_text NULL problem?

I am new in iphone application developer i am using sqlite3 database and in app delegate i am wright following code and run properly we also find value from database to in my aplication, but immediately the application is going to crass why this is occurs i am not understand. code is given bellow -(void)Data { datab...

problem in quartz 2D drawing touches began

I have drawn 5 circles in in my app one above the other . But i want to perform different operations when i touch each circle and there is only one touches began where I can perform touches for the entire view.. can anyone help me how to do that. ...

customized iphone camera application

I need to add self timer in iphone customized camera application. any code or support would help ...