iphone

open iphone Mail from Actionsheet..

hi .. I want to open Mail app from my app when the one button in actionsheet is pressed, I know this way : -(IBAtion)openClick:(id)sender { [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto:[email protected]"]]; } but can I write this method inside if statement or switch case?(in ControlView class NOT NSObject c...

Unicode Kangxi radicals range 2F00–2FDF not displayed on iphone device, but in simulator

Hi, Kangxi radicals in the range 2F00-2FDF (see link text) are not displayed correctly on the iPhone device. They appear as a crossed-out box. In the simulator they display correctly. I tried the system font and also the [UIFont fontWithName:@"STHeitiTC-Medium" size:24]; ... Is the unicode codepoint coverage limited on the iphone...

Where is my object allocation and memory leak in this iPhone/objective C code?

Hello, I'm still a rookie when it comes to this programming gig and was wondering if someone could help me smooth out this code. Functionally, the code works great and does what I need it to do. But when I run the performance tool the allocation graph peaks, the CPU load is high, there's a leak(s), and I've also confirmed when running on...

Is there a any fingerprint-library or framework to use for iphone app developement?

I would like to know wether somthing like this can be easily achieved, any suggestions?+ thx in advance ...

Read Text File in Document Folder - Iphone SDK

Hello everyone I have this code below: NSString *fileName = [[NSUserDefaults standardUserDefaults] objectForKey:@"recentDownload"]; NSString *fullPath = [NSBundle pathForResource:fileName ofType:@"txt" inDirectory:[NSHomeDirectory() stringByAppendingString:@"/Documents/"]]; NSError *error = nil; [textViewerDownload setText...

NSFetchedResultsController crashing on performFetch: when using a cache

I make use of NSFetchedResultsController to display a bunch of objects, which are sectioned using dates. On a fresh install, it all works perfectly and the objects are displayed in the table view. However, it seems that when the app is relaunched I get a crash. I specify a cache when initialising the NSFetchedResultsController, and when ...

Custom Map using iPhone MapKit

I am attempting to use MapKit to create a custom map (similar to this concept http://mapwow.com/) using an image instead of the google maps image. This is so we can include the gps functionality and the pins functionality. I have looked in the documentation and there does not appear to be a standard way of doing it. Is there a way to do ...

accessing google maps via UIWebView - illegal?

New to iPhone development. Working on first app. I'm accessing google maps via UIWebView to forward geocode an address using "http://maps.google.com/maps?q=my address". It works, although it has this quirk of requiring you to hit "Back" button and then the "Detail" button (provided by the navigation bar) to get back to the screen from...

Ipad/Iphone UIActionSheet

Hi All, Ive only posted on here a couple of times and people have been very quick and very helpful when responding so thanks. Im trying to use the UIActionsheet element in my Ipad application. But just to confuse matters im using Cocos2d aswell. But here is my problem. If coding the actionsheet with out cocos2d you would use the fol...

UIImages not displaying in TableView on iPhone, but working in Simulator

Hi, I have a UITable View that displays an image in the left hand side of the table cell, and it works fine in the simulator. Only problem is, once I ran it on my device no images appear. It's just a blank white space. Have checked that images are added to resource folder for build (which they are) and that capitals etc. match (which ...

Using Interface Builder efficiently

I am new to iPhone and objective c. I have spent hours and hours and hours reading documents and trying to understand how things work. I have RTFM or at least am in the process. My main problem is that I want to understand how to specify where an event gets passed to and the only way I have been able to do it is by specifying delegates ...

iphone core data loop array and save each

I have a core data model with two tables (meal and ingredients). I am trying to save ONE meal with MANY ingredients. I have the code below which loops through an array of ingredients. I'm trying to save it, but I cannot redeclare the "entity" below. How do I do it? I've tried releasing it, but that didn't work! Thanks for any help. for...

cannot upgrade current target for ipad

Hi everyone, i try to upgrade my old existing app to make it a universal application for iphone and ipad. i clicked on my target and tryed to select "upgrade current target for ipad", but i cannot click it, because its not clickable. my project settings are: The Base SDK is set to iPhone Device 3.2 The iPhone OS Deployment Target ...

problem with kCFSocketReadCallBack

Hello. I have a problem with my program. I created a socket with "kCFSocketReadCallBack. My intention was to call the "acceptCallback" only when it receives a string to the socket. Instead my program does not just accept the connection always goes into "startReceive" stop doing so and sometimes crash the program. Can anybody help? Thanks...

armv6 / armv7 errors when compiling for iPhone

I am having problems trying to compile my App to my iPhone. I upgraded to the new SDK and have 4.0 on my phone... which I did not do that. I am compiling for 3.1.2 - It works fine in the simulator but when I "build" for the Device, it gives me this line of errors: Link /Users/me/Apps/myapp/build/app.build/Debug-iphoneos/app.build/object...

NSFetchedResultsController didn't return data

Hello! I get stuck in some problem and after 2 days of seeking I've found solution but didn't get idea why does it work. First, I'm initialized NSFetchedResultsController using following code (it look like a lot of automatically generated): - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController != nil...

How does the OpenGL ES template work for the iPhone?

So, I've been trying to figure out why the square is moving up and down the iPhone simulator when I Build and Run the template that Apple provides for OpenGL ES. I don't understand why for example they have ES1Render.m, and ES2Render.m instead of just one ESRender.m. Also, where is the equivalent of the glutDisplayFunc, and glutTimerFunc...

How to create a timer the right way?

I always have an class which needs to set up a timer for as long as the object is alive. Typically an UIView which does some animation. Now the problem: If I strongly reference the NSTimer I create and invalidate and release the timer in -dealloc, the timer is never invalidated or released because -dealloc is never called, since the run...

Setting background views depending on user settings

I've got an app where the background needs to be set depending on user preference. The user can change this at any time via settings tab. I've got it working by checking NSUserDefaults in viewWillAppear and setting self.view.backgroundColor. This is really clunky. The right approach (I thought) is to set the background in the root view ...

Which pattern should be used for editing properties with modal view controller on iPhone?

I am looking for a good pattern for performing basic property editing via a modal view on the iPhone. Assume I am putting together an application that works like the Contacts application. The "detail" view controller displays all of the contact's properties in a UITableView. When the UITableView goes into edit mode a disclosure icon i...