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  • iphone tableview multilevel

    - by Anonymous
    Hi, I 'm a iphone programming newbie. I m trying to implement an app with multi-level tableviews. The idea is if someone selects something on the first screen say then a new view opens(tableview) car make> list of models Honda > Acura, S2000,accord ... My challenge is to show the list of models in a new tableview & secondly change the size of hte list depending on the car selected. I have programmed so that when i select 'Honda' a new tableview opens. How do i populate data for the second table?? Any suggestions on how to proceed? thanks

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  • iPad UISPlitViewController question

    - by saikamesh
    Hi, It is mentioned in the Apple's documentation that if we use UISPlitViewController in our app, then that should be the root view controller. In our iPone app we are showing splash screen for some seconds till the loading of the app finishes. Once it is loaded the home screen needs to be displayed in a SplitViewController. If we use SplitViewController as the root view. How will we show the splash screen which is displayed in a single view where as SplitVieController displays two ViewControllers. Please explain me the how this can be done.

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  • Height of screen in portrait mode only?

    - by user246114
    Hi, How can I get the height of the device for portrait mode? I have to create a bitmap (which is zoomable) and I just want to get a rough idea what the tallest height should be. getResources().getDisplayMetrics().heightPixels; does the above return the height, in portrait mode only? I'm not binding my UI to this absolute value, it's just a rough fit, Thanks

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  • Can only "agents" build and submit Applications to Apple?

    - by Martin
    I'm afraid I know the answer to this but I'll ask on the longshot chance that I'm wrong: I've been doing some freelance work creating an iPhone application for a company. They've created their own developer account and added me as an team member with "admin" rights. That seems to be the highest assignable rights (with the only higher level being "agent" and belonging only to whoever signed up for the account). Yet, I don't have an option under the provisioning portal to create a distribution certificate or profile. Is there any way to create these myself without having to ask my client for their primary login? They're not particulary tech savy so it would be difficult to walk them through the process to create the necessary certificates (and would require me giving them a certificate request from my computer, etc. etc.). But it seems like there should be some way to create a distribution build without "agent" rights, right? Could Apple seriously expect only one person from a company to do all the building and uploading of apps to the store?

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  • UIPageControl bug: showing one bullet first and then showing everything

    - by user313551
    I have some strange behavior using a UIPageControl: First it appears showing only one bullet, then when I move the scroll view all the bullets appear correctly. Is there something I'm missing before I add it as a subview? Here is my code imageScrollView.h : @interface ImageScrollView : UIView <UIScrollViewDelegate> { NSMutableDictionary *photos; BOOL *pageControlIsChangingPage; UIPageControl *pageControl; } @property (nonatomic, copy) NSMutableDictionary *photos; @property (nonatomic, copy) UIPageControl *pageControl; @end Here is the code for imageScrollView.m: #import "ImageScrollView.h" @implementation ImageScrollView @synthesize photos, pageControl; - (id)initWithFrame:(CGRect)frame { if ((self = [super initWithFrame:frame])) { // Initialization code NSLog(@"%@",pageControl); } return self; } - (void) drawRect:(CGRect)rect { [self removeAllSubviews]; UIScrollView *scroller = [[UIScrollView alloc] initWithFrame:CGRectMake(0,0,self.frame.size.width,self.frame.size.height)]; [scroller setDelegate:self]; [scroller setBackgroundColor:[UIColor grayColor]]; [scroller setShowsHorizontalScrollIndicator:NO]; [scroller setPagingEnabled:YES]; NSUInteger nimages = 0; CGFloat cx= 0; for (NSDictionary *myDictionaryObject in photos) { if (![myDictionaryObject isKindOfClass:[NSNull class]]) { NSString *photo =[NSString stringWithFormat:@"http://www.techbase.com.mx/blog/%@", [myDictionaryObject objectForKey:@"filepath"]]; NSDictionary *data = [myDictionaryObject objectForKey:@"data"]; UIView *imageContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height - 30)]; TTImageView *imageView = [[TTImageView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height - 30)]; imageView.urlPath=photo; [imageContainer addSubview:imageView]; UILabel *caption = [[UILabel alloc] initWithFrame:CGRectMake(0,imageView.frame.size.height,imageView.frame.size.width,10)]; [caption setText:[NSString stringWithFormat:@"%@",[data objectForKey:@"description"]]]; [caption setBackgroundColor:[UIColor grayColor]]; [caption setTextColor:[UIColor whiteColor]]; [caption setLineBreakMode:UILineBreakModeWordWrap]; [caption setNumberOfLines:0]; [caption sizeToFit]; [caption setFont:[UIFont fontWithName:@"Georgia" size:10.0]]; [imageContainer addSubview:caption]; CGRect rect = imageContainer.frame; rect.size.height = imageContainer.size.height; rect.size.width = imageContainer.size.width; rect.origin.x = ((scroller.frame.size.width - scroller.size.width) / 2) + cx; rect.origin.y = ((scroller.frame.size.height - scroller.size.height) / 2); imageContainer.frame=rect; [scroller addSubview:imageContainer]; [imageView release]; [imageContainer release]; [caption release]; nimages++; cx +=scroller.frame.size.width; } } [scroller setContentSize:CGSizeMake(nimages * self.frame.size.width, self.frame.size.height)]; [self addSubview:scroller]; pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(self.frame.size.width/2, self.frame.size.height -20, (self.frame.size.width/nimages)/2, 20)]; pageControl.numberOfPages=nimages; [self addSubview:pageControl]; [scroller release]; } -(void)dealloc { [pageControl release]; [super dealloc]; } -(void)scrollViewDidScroll:(UIScrollView *)_scrollView{ if(pageControlIsChangingPage){ return; } CGFloat pageWidth = _scrollView.frame.size.width; int page = floor((_scrollView.contentOffset.x - pageWidth /2) / pageWidth) + 1; pageControl.currentPage = page; } -(void)scrollViewDidEndDecelerating:(UIScrollView *)_scrollView{ pageControlIsChangingPage = NO; } @end

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  • Android multiple screen sizes with same density

    - by droidy
    I'm confused regarding the densities. I see that with medium density, the screen resolution could be either 320x480, 480x800, or 480x854. So if I have an image thats 300px wide in the mdpi folder, how is it going to look the same size on all 3 different screen sizes (mainly 320x480 vs the other 2)? And by look the same size, I mean scale to be bigger or smaller depending upon the screen size. Thanks.

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  • Google Maps iPhone API Terrain View

    - by Adam
    We're using MapKit on an iPhone app to display a Google Map with terrain view. However, the terrain view only shows when the user has an active Internet connection, the moment the user's Internet is off, the terrain on the map disappears and it appears flat. Is there any way to keep the terrain view on even when the user isn't on an active internet connection? Thanks! Adam

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  • create custom pdf viewer for iphone

    - by Ankit Sachan
    I want to develop a custom pdf viewer, in which I can add features like: bookmarks jump to specific page take some notes page flipping effect Can you suggest some libraries in Cocoa touch to fullfill my requirements? I followed the PDF viewing tutorial in which a webview was used but it only provides basic scrolling and zoom facilities. I have seen some apps in which bookmarks and page flipping is possible. Kindly suggest me something so that I can integrate more features.

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  • Android Keep Activity from Dieing

    - by GuyNoir
    The main Activity I use in my Android application uses a fair amount of memory, meaning that on a less powerful phone, it is susceptible to being killed off when not at the front. Normally this is fine, but it also happens when I am still inside my application, but have a different activity at the top of the stack (such as a preference activity). Obviously it's a problem if my application is killed while the user is still running it. Is there any way to disable the OS's ability to kill off the application for low memory problems? Thanks.

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  • FaceBook UIAlertView problem

    - by william-hu
    My iPhone application connects to facebook . After i log in ,then appear one button named "Add feed to your wall". If i click it , pop a UIAlertView which ask "Yes" or "no". If "Yes", show the FBStreamDialog. But the BFStreamDialog just flash, then disappear. I don't know why. this is my code. First , click the button " Add feed to your wall". call changeFeed: function. -(IBAction) changeFeed { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Sporting Summer Festival Monte-Carlo" message:@"Are you attending this concert?" delegate:self cancelButtonTitle:@"No" otherButtonTitles:@"Yes",nil]; [alert show]; alert.tag = 1; self.alertView =alert; [alert release]; } Then, if you choose "YES" button. Call this function: - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex == 0) { NSLog(@"NO"); } else { NSLog(@"YES"); [self showAddFeed]; } } And this is the showAddFeed function , which is defined in front of "clickButtonAtIndex". -(void)showAddFeed { FBStreamDialog dialog = [[[FBStreamDialog alloc] init] autorelease]; dialog.delegate= self; dialog.userMessagePrompt = @""; [dialog show]; } Just cant work well. I don't know why? Thank you for your help.

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  • modalViewController present when app opens

    - by Sam Jarman
    Hey im trying to display a modal view controller as soon as my tab bar controller app opens. There is something wrong with the code below, and im 99% sure its the code for this. what do i put for the thing im calling it on? [self presentModalViewController:promt animated:YES]; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after app launch. //Displays the password prompt modally PasswordPromViewController *promt = [[PasswordPromViewController alloc] initWithNibName:@"PasswordPromViewController" bundle:nil]; promt.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController:promt animated:YES]; [promt release]; return YES; } any ideas would be helful! Cheers

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  • Reading Resource Files from my own APK in Android Native Environment

    - by Kyle
    I'm porting to Android. My existing project has a ton of resource files that I'm porting into my Android project. I have them all in /res/raw/, and I would like to access those resources in my native library with functions such as fopen() and such. Can this be done, or do I have to go through JNI for this as well? I would really prefer not to, for ease of porting and possible speed and memory reasons.

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  • What is NSString in struct?

    - by 4thSpace
    I've defined a struct and want to assign one of its values to a NSMutableDictionary. When I try, I get a EXC_BAD_ACCESS. Here is the code: //in .h file typedef struct { NSString *valueOne; NSString *valueTwo; } myStruct; myStruct aStruct; //in .m file - (void)viewDidLoad { [super viewDidLoad]; aStruct.valueOne = @"firstValue"; } //at some later time [myDictionary setValue:aStruct.valueOne forKey:@"key1"]; //dies here with EXC_BAD_ACCESS This is the output in debugger console: (gdb) p aStruct.valueOne $1 = (NSString *) 0xf41850 Is there a way to tell what the value of aStruct.valueOne is? Since it is an NSString, why does the dictionary have such a problem with it? ------------- EDIT ------------- This edit is based on some comments below. The problem appears to be in the struct memory allocation. I have no issues assigning the struct value to the dictionary in viewDidLoad, as mentioned in one of the comments. The problem is that later on, I run into an issue with the struct. Just before the error, I do: po aStruct.oneValue Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 0x9895cedb in objc_msgSend () The program being debugged was signaled while in a function called from GDB. GDB has restored the context to what it was before the call. To change this behavior use "set unwindonsignal off" Evaluation of the expression containing the function (_NSPrintForDebugger) will be abandoned. This occurs just before the EXC_BAD_ACCESS: NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"MM-dd-yy_HH-mm-ss-A"]; NSString *date = [formatter stringFromDate:[NSDate date]]; [formatter release]; aStruct.valueOne = date; So the memory issue is most likely in my releasing of formatter. The date var has no retain. Should I instead be doing NSString *date = [[formatter stringFromDate:[NSDate date]] retain]; Which does work but then I'm left with a memory leak.

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  • EAGLView orientation changes and strange buffering

    - by Drew
    I'm writing an app that offloads some heavy drawing into an EAGLView, and it does some lightweight stuff in UIKit on top. It seems that the GL render during an orientation change is cached somewhere, and I can't figure out how to get access to it. Specifically: After an orientation change, calling glClear(GL_COLOR_BUFFER_BIT) isn't enough to clear the GL display (drawing is cached somewhere?) How can I clear this cache? After an orientation change, glReadPixel() can no longer access pixels drawn before the orientation change. How can I get access to where this is stored?

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  • Optimising local image loading/rendering on iPhone

    - by Tricky
    Hi, I'm looking to create an interface where the user can navigate through large volumes of images. Each image has a thumbnail of 128x128 that I wish to display and will be kind of similar to coverflow in operation. I have this all working in principle but am becoming stuck when navigating through content at speed. The interface begins to stutter and becoming jerky. I believe this is primarily because of disk i/o and the cost of rendering each image. Is there anyway this can be handed over to a seperate thread simply? Defaulting to a greyed out thumbnail until the image has loaded? How have Apple managed to achieve this in coverflow? Many thanks,

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  • Two PickerViews in save View issue?

    - by NextRev
    I'm trying to have 2 pickerviews in the same view. It works except for two things. If one pickerview has more rows than the other the app crashes when picking an item from the pickerview with more items. Also I created an NSLog for the pickerviews and the console shows that I'm picking two items at once when in fact i'm only dealing with one pickerview. I know it sounds a bit confusing but I'm including all the code. Thank you in advance. list and list2 are NSMutableArrays list has 4 items list2 has 5 items There error: * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (4) beyond bounds (4)' -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView{ if([thePickerView isEqual:pickerView1 ]){ return 1; } else if([thePickerView isEqual:pickerView2]){ return 1; } else{ return 0; } } -(NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component{ if([thePickerView isEqual:pickerView1 ]){ return [list count]; } else if([thePickerView isEqual:pickerView2]){ return [list2 count]; } else{ return 0; } } -(NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{ if([thePickerView isEqual:pickerView1 ]){ return [list objectAtIndex:row]; } else if([thePickerView isEqual:pickerView2]){ return [list2 objectAtIndex:row]; } else{ return 0; } } - (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { NSLog(@"Selected item %@. Index of selected item:%i", [list objectAtIndex:row], row); NSLog(@"Selected item %@. Index of selected item:%i", [list2 objectAtIndex:row], row); NSLog(@"Selected item %@. Index of selected item:%i", [list3 objectAtIndex:row], row); if([thePickerView isEqual:pickerView1 ]){ //Do Something } else if([thePickerView isEqual:pickerView2 ]){ //Do Something } else if([thePickerView isEqual:pickerView3 ]){ //Do Something } }

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  • View load methods not firing.

    - by 4thSpace
    I'm loading a view like this: if(commentSubmissionView == nil){ commentSubmissionView = [[CommentSubmissionController alloc] initWithNibName:@"CommentSubmissionView" bundle:nil]; } [self.view addSubview:commentSubmissionView.view]; viewDidLoad and viewWillAppear in commentSubmissionView do not fire. Is there something else I need to do?

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  • Core Audio on iPhone - any way to change the microphone gain (either for speakerphone mic or headpho

    - by Halle
    After much searching the answer seems to be no, but I thought I'd ask here before giving up. For a project I'm working on that includes recording sound, the input levels sound a little quiet both when the route is external mic + speaker and when it's headphone mic + headphones. Does anyone know definitively whether it is possible to programmatically change mic gain levels on the iPhone in any part of Core Audio? If not, is it possible that I'm not really in "speakerphone" mode (with the external mic at least) but only think I am? Here is my audio session init code: OSStatus error = AudioSessionInitialize(NULL, NULL, audioQueueHelperInterruptionListener, r); [...some error checking of the OSStatus...] UInt32 category = kAudioSessionCategory_PlayAndRecord; // need to play out the speaker at full volume too so it is necessary to change default route below error = AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(category), &category); if (error) printf("couldn't set audio category!"); UInt32 doChangeDefaultRoute = 1; error = AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryDefaultToSpeaker, sizeof (doChangeDefaultRoute), &doChangeDefaultRoute); if (error) printf("couldn't change default route!"); error = AudioSessionAddPropertyListener(kAudioSessionProperty_AudioRouteChange, audioQueueHelperPropListener, r); if (error) printf("ERROR ADDING AUDIO SESSION PROP LISTENER! %d\n", (int)error); UInt32 inputAvailable = 0; UInt32 size = sizeof(inputAvailable); error = AudioSessionGetProperty(kAudioSessionProperty_AudioInputAvailable, &size, &inputAvailable); if (error) printf("ERROR GETTING INPUT AVAILABILITY! %d\n", (int)error); error = AudioSessionAddPropertyListener(kAudioSessionProperty_AudioInputAvailable, audioQueueHelperPropListener, r); if (error) printf("ERROR ADDING AUDIO SESSION PROP LISTENER! %d\n", (int)error); error = AudioSessionSetActive(true); if (error) printf("AudioSessionSetActive (true) failed"); Thanks very much for any pointers.

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  • UIAlertView with subview animating to new view crashes app

    - by William
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Congratulations" message:message delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"View", nil]; UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(110, 100, 80, 80)]; NSString *imagePath = [NSString stringWithFormat:@"%@", [Array objectAtIndex:x]]; UIImage *bkgImg = [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource:imagePath ofType:@"png"]]; imageView.image = bkgImg; [bkgImg release]; [alert addSubview:imageView]; [imageView release]; [alert show]; [alert release]; That is the code that I am using to create the alert view. Currently, I have it set up so if the user presses one of the buttons, it will load up a new viewcontroller. It worked fine until I added a subview to the UIAlertView. Now, whenever it animates to the new screen, it just crashes the program. I am fairly new to iPhone development and any help would be appreciated.

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  • to print local xml file through NSData?

    - by senthilmuthu
    hi, i want to take some xml data from local path,and to parse,but when i use following code NSLog returns(content) different texts which is differed from xml file, how can i get exact xml data to check ,it consists correct xml data or not? any help please? when i parse , it returns nothing..i have saved the file as .xml and copied to local resource folder? NSString *xmlFilePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"samp.xml"]; NSString *xmlFileContents = [NSString stringWithContentsOfFile:xmlFilePath]; NSData *data = [NSData dataWithBytes:[xmlFileContents UTF8String] length:[xmlFileContents lengthOfBytesUsingEncoding: NSUTF8StringEncoding]]; NSString *content=[[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSUTF8StringEncoding]; NSLog(@"%@",content);

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