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  • Facebook: "URL could not be liked because it has been blocked" error in iOS app

    - by Andrew Madsen
    I'm working on an iOS app that allows the user to like a Facebook page within the app. I've implemented this using FacebookLikeView. During the course of testing this functionality, I've liked and unliked the same page multiple times. Unfortunately, this seems to have triggered Facebook's spam detection. Now, when trying to like a page using the like button displayed by FacebookLikeView, the following error is presented: "URL could not be liked because it has been blocked". Based on reports of the same problem found by searching the web, I've filled out this form to request that Facebook remove the block. However, I've received no response from them. I'm not sure how to proceed. Has anyone else run into this issue and successfully solved it?

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  • Retrieving and displaying AddressBook in Table view.

    - by Prash.......
    hi, I am developing an application in which i have to retrieve all Addressbook (Name & Phone No) records and Display it in table view, this is my Snippet for retrieving records from addressbook. NSArray *tableGroups; ABAddressBookRef m_addressbook = ABAddressBookCreate(); if (!m_addressbook) { NSLog(@"opening address book"); } CFArrayRef allPeople= ABAddressBookCopyArrayOfAllPeople(m_addressbook); CFIndex nPeople = ABAddressBookGetPersonCount(m_addressbook); NSMutableArray *selectableRows = [NSMutableArray array]; for (int i=0;i < nPeople;i++) { ABRecordRef ref = CFArrayGetValueAtIndex(allPeople,i); ABMutableMultiValueRef phoneMulti = ABRecordCopyValue(ref, kABPersonPhoneProperty); CFStringRef phoneNumber= ABMultiValueCopyValueAtIndex(phoneMulti, i); NSString *contactFirstLast = [NSString stringWithFormat:@"%@,%@", ABRecordCopyValue(ref, kABPersonFirstNameProperty),phoneNumber]; printf("%s\n", [contactFirstLast UTF8String]); [selectableRows addObject:[NSString stringWithFormat:contactFirstLast, i]]; CFRelease(phoneNumber); CFRelease(ref); CFRelease(contactFirstLast); CFRelease(phoneMulti); } tableGroups = [[NSArray alloc] initWithObjects:selectableRows, nil]; I am getting exception as "CFRetain" and apps get crash. Please suggest me proper solution for that..

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  • Setting the UIImagePickerController delegate throws a warning about UINavigationControllerDelegate

    - by synic
    The code: UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self.navigationController presentModalViewController:picker animated:YES]; [picker release]; The warning, which shows up on the picker.delegate = self; line: Class 'CardEditor' does not implement the 'UINavigationControllerDelegate' protocol Why does the UIImagePickerController care if my class implements the UINavigationControllerDelegate protocol?

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  • Assigning a selector via SEL type?

    - by fuzzygoat
    I just spotted the following in an online tutorial. It showed 001 as a method for assigning a selector, however I could not get this to work. Am I right in thinking that 001 is not right and 002 is the correct way, or am I doing something wrong with 001? // 001 SEL mySel = [self something]; // 002 SEL mySel = @selector(something); . -(void)something { NSLog(@"YAY"); } Gary

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  • Using CGRectIntersectsRect for collision detection

    - by user309030
    Hi guys, I've got a long rectangular image which is rotated at different kind of angles. However the frame of the rectangular image does not rotate along with the image and instead, the rotation causes the frame to to become larger to fit the rotated image. So when I used CGRectIntersectsRect, the collision detection is totally off because the other image colliding with the rectangular image will collide before it even reaches the visible area of the rect image. In case you don't really know what I'm talking about, have a look at the ascii drawing: normal rectangular image frame, O - pixels, |, – - frame |----------| |OOOOOOOOOO| |----------| after rotation |----------| |O | | O | | O | | O | | O | | O | | O | | O | | O | |----------| I've read through some of the collision articles but all of them are talking about collision with a normal straight rectangle and what I really want is collision with a slanted image, preferably pixel collision detection. TIA for any suggestions made.

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  • Why would JmDNS service discovery work on a Motorola Droid running Android 2.1-update1 and not on an

    - by Churlbong
    I have successfully gotten JmDNS working on Android 2.1 testing on a Motorola Droid by using MulticastLock, but recently got an HTC Incredible as second test device, and JmDNS discovery doesn't work at all. I should mention that broadcasting a service still works and everything appears to run normally, but serviceAdded() never gets called. Does anyone have thoughts on why this might be? I was thinking it might be a permission issue, but I don't get any exceptions...

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  • Why is my UIImageView blurred?

    - by Denis M
    I have a really weird problem with UIImageView. I have an image (an RGB png) 45x45 pixels which I add to the view. I can see that image is blurred after added to the view. Here is the same image in the simulator (left) and in Xcode (right): I have custom UIImageView class with this initWithImage code: - (id) initWithImage:(UIImage*) image { self = [super initWithImage:image]; self.frame = CGRectMake(0, 0, 45, 45); self.contentMode = UIViewContentModeScaleAspectFit; self.quantity = 1; if (self) { self.label = [[UITextField alloc]initWithFrame:CGRectMake(0,40,45,25)]; self.label.font = [UIFont systemFontOfSize:16]; self.label.borderStyle = UITextBorderStyleNone; self.label.enabled = TRUE; self.label.userInteractionEnabled = TRUE; self.label.delegate = self; self.label.keyboardType = UIKeyboardTypeNumbersAndPunctuation; self.label.textAlignment = UITextAlignmentCenter; } self.userInteractionEnabled = TRUE; // Prepare 3 buttons: count up, count down, and delete self.deleteButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.deleteButton.hidden = NO; self.deleteButton.userInteractionEnabled = YES; self.deleteButton.titleLabel.font = [UIFont systemFontOfSize:20]; self.deleteButton.titleLabel.textColor = [UIColor redColor]; [self.deleteButton setTitle:@"X" forState:UIControlStateNormal]; [self.deleteButton addTarget:self action:@selector(deleteIcon:) forControlEvents:UIControlEventTouchUpInside]; self.upCountButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.upCountButton.hidden = NO; self.upCountButton.userInteractionEnabled = YES; [self.upCountButton setTitle:@"+" forState:UIControlStateNormal]; [self.upCountButton addTarget:self action:@selector(addQuantity:) forControlEvents:UIControlEventTouchUpInside]; self.downCountButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.downCountButton.hidden = YES; self.downCountButton.userInteractionEnabled = YES; [self.downCountButton setTitle:@"-" forState:UIControlStateNormal]; [self.downCountButton addTarget:self action:@selector(removeQuantity:) forControlEvents:UIControlEventTouchUpInside]; return self; } I create it like this: UIImage *desertIcon = [UIImage imageNamed:@"desert.png"]; IconObj *desertIconView = [[IconObj alloc] initWithImage:desertIcon]; desertIconView.center = CGPointMake(265,VERTICAL_POINT_ICON); desertIconView.type = [IconObj TYPE_DESERT]; [self.view addSubview:desertIconView]; [desertIconView release]; Why would the displayed image be so than the one stored in a file?

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  • Getting Data For Webpages?

    - by fuzzygoat
    When looking to get data from a web page whats the recommended method if the page does not provide a structured data feed? Am I right in thinking that its just a case of doing an NSURLRequest and then hacking what you need out of the responseData(NSData*)? I am not too concerned about the implementation in Xcode, I am more curious about actually collecting the data, before I start coding a "hunt & peck" through a list of data. gary

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  • Best XML Parser for RSS Feeds in Objective C ?

    - by Ansari
    Hi all, I am going to develop an application which will parse the RSS feeds and display the items in my custom cell.(Cell containing the image, label, description, etc). The most popular way of parsing is using the NSXMLParser. But this is bit of a lengthy way. So is there any other way to do this. Or my question will be, which is the best xml parser for objective-c ?

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  • Apple's Sample App TopSongs has 26 Leaks, Ugh!

    - by RoLYroLLs
    Hey all, I've been building an app for a client and part of it uses Apple's TopSongs sample app to download data on another thread. I finally got enough done to start testing that part and found 1000 leaks!!! A closer look at the leaks made me check TopSongs for leaks, since none of the my methods were in leaks report. Running TopSongs returned 26 leaks. Not quite sure how to fix them, or if they are part of some library from Apple. I bet you're asking if it has 26, why do you have 1000? Well, I use their sample to make roughly 48 calls to webservices to get all the information needed on initial install (48 calls x 26 leaks = 1248 leaks!!). Later it makes at least 12 calls + 4 to check for updated information on other sections of the app. Can't do a thing about it, can't make one call, or less calls, please don't comment about this part. I seen people respond to posts that aren't necessarily answering the question the user originally posted, which in this case is has anyone tried patching up the leaks, if they are patchable, or is this a bug in Apple's libraries? Thanks so much.

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  • Capturing a NSParseErrorException

    - by Martin
    Could someone tell me how I can capture a NSParseErrorException? The Situation: my app downloads a small .plist file. I convert this into dictionary using the string method -propertylist. This normally works fine. I check for a connection before going to retrieve the file, so it works fine if I've got a connection to the internet, and works fine when I don't. However, I discovered a use case that crashes. If I'm at location that requires authetication before connecting to the internet (at Starbucks, say) what's being returned by the app isn't a plist and the attempt to parse it causes the application to crash. So is there a way to transform my code so that the NSParseErrorException is caught and rather than crashing the program I can just skip over this piece of code? NSDictionary *temp = [myDownloadString propertyList]; I tried doing this if ([myDownloadString propertyList]==NSParseErrorException){ //do something } but that didn't work.

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  • how to apply the center of image view for another image view center

    - by maddy
    hi, I am developing image redraw app. i know the center of one image view which is having scaling property. i.e it can change it frame and center . that to be applied to another view center. when i apply center to newly formed Image view it giving wrong center because of the previous image view is having scaling property. so how can i get exact center to my new image view from previous imageview

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  • strange behavior when changing UINavigationController backItem title

    - by Rafael
    Hi, I'm changing the back button item title in the viewDidAppear of a controller in the following way: self.navigationController.navigationBar.backItem.title = @"Previous"; It changes the tittle properly, but the I'm having a strange behaviour. When I select the "previous" button, it changes the tittle of the controller that is up in the stack (i.e the parent controller now has the title "Previous". Do you now why this happened ??? Thanks in advanced for your help.

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  • Quartz 2D or OpenGL ES? Pros and cons in the long term, possibility of migration to other platforms.

    - by fspirit
    Hi all! I'm having a hard time deciding whether to go with Quartz2D or OpenGL for an iPad game. It will be 2D mostly, but effect-intense (simultaneous lighting effects for 10-30 objects, 10-20 simultaneous animations on the screen). So far, assuming i'm equally dumb in both technologies and have to learn them from the ground, i came to this list. (I've read several topics here, on SO, with names like "Quartz or OpenGL", but i'm still left with some questions) Quartz: Better time-to-market, because of ready to use absractions like UIView, UIImageView, CoreAnimation abstractions Open GL ES Closer to hardware, thus, performance is better. App, implemented with OpenGL ES can be easier migrated to Android, MeeGo, Windows Phone, etc. My questions are: How time will it take to rewrite Quartz 2d app to use OpenGL? Lets say it took me 2 man-month to write Quartz app, how much time will i need to rewrite it? (Please, just some subjective opinions, i'll try to summarize them somehow) Regarding the ease of migration to other platforms, when using OpenGL, is it really so? Or efforts when migrating Quartz app from iPhoneOS to Android will be not so much bigger, compared to OpenGL app migration? (Ease of migration is quite important criterion) Regarding OpenGL, should i go with OpenGL 1.1 or 2.0, concerning migration? (Android supports 2.0 through NDK, but dont know whether NDK's use will increase or decrease migration efforts)

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  • How to call Android contacts list?

    - by aZn137
    Hi, I'm making an Android app, and need to call the phone's contact list. I need to call the contacts list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work. Please help: import android.app.ListActivity; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import android.provider.Contacts.People; import android.view.View; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleCursorAdapter; import android.widget.TextView; public class Contacts extends ListActivity { private ListAdapter mAdapter; public TextView pbContact; public static String PBCONTACT; public static final int ACTIVITY_EDIT=1; private static final int ACTIVITY_CREATE=0; // Called when the activity is first created. @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); Cursor C = getContentResolver().query(People.CONTENT_URI, null, null, null, null); startManagingCursor(C); String[] columns = new String[] {People.NAME}; int[] names = new int[] {R.id.row_entry}; mAdapter = new SimpleCursorAdapter(this, R.layout.mycontacts, C, columns, names); setListAdapter(mAdapter); } // end onCreate() // Called when contact is pressed @Override protected void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); Cursor C = (Cursor) mAdapter.getItem(position); PBCONTACT = C.getString(C.getColumnIndex(People.NAME)); // RHS 05/06 //pbContact = (TextView) findViewById(R.id.myContact); //pbContact.setText(new StringBuilder().append("b")); Intent i = new Intent(this, NoteEdit.class); startActivityForResult(i, ACTIVITY_CREATE); } }

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  • Root view controllers and modal dialogs

    - by Tony
    In a custom UIViewController, if I have a member UINavigationController that I initialize with self as the root view, like this: navController = [[UINavigationController alloc] initWithRootViewController:self]; then presenting a modal dialog does not hide the tab bar at the bottom of the screen. The result is that if the user switches to a different tab while a modal dialog is displayed, when they pop back to the tab that was displaying a modal dialog then subsequent calls to presentModalViewController do not display a modal dialog at all, even if I call dismissModalViewControllerAnimated as a result of the tab switch. If I initialize the UINavigationController with out setting self as the root controller, navigationController = [[UINavigationController alloc] init]; then the tab bar is hidden as expected. I've changed things in my program so that this isn't really an issue for me anymore, but I'm not sure that I understand why this is happening. Is it considered bad practice to have a navigation controller with self as the root, if the nav controller is going to be displaying modal dialogs?

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  • Can not add a animation to a UIImageView:

    - by Flocked
    Hello, Im trying to add a animation to a UIImageView, but it always fails. Why? Here is the code: UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); animationImage = [[UIImageView alloc]initWithImage:newImage]; [self.view addSubview:animationImage]; CATransition *animation = [CATransition animation]; [animation setDelegate:self]; [animation setDuration:0.35]; [animation setTimingFunction:UIViewAnimationCurveEaseInOut]; animation.type = @"pageCurl"; animation.fillMode = kCAFillModeForwards; animation.endProgress = 0.58; [animation setRemovedOnCompletion:NO]; [[animationImage layer] addAnimation:animation forKey:@"pageCurlAnimation"];

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  • Extract attributes from NSManagedObject array.

    - by Pavel Peroutka
    NSFetchRequest *req = [NSFetchRequest init]; NSEntityDescription *descr = [NSEntityDescription entityForName:@"City" inManagedObjectContext:context]; [req setEntity:descr]; NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:@"streetName" ascending:YES]; [req setSortDescriptors:[NSArray arrayWithObject:sort]]; [sort release]; //fetch NSError *error; NSArray *result = [context executeFetchRequest:req error:&error]; //extract names NSMutableArray *streets = [[NSMutableArray alloc] init]; for () { ??? = [array objectAtIndex:i]; [streets addObject:name]; } I expected Core Data to be little more intuitive. I am new in it and I could use some help. I fetched all objects(rows) from the entity (table) City. Now I have an array of objects. From the array I need to extract the attribute “streetName” to an array which will feed the picker. I figured I need to do it in the loop but I could not figure out the way to do it. Please help. I have a background with SQL but Core Data is still a big mystery to me. Is there any publication which would take a SQL statement and show comparable Core Data syntax? Thanks.

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  • IB not responding to UIImageView moving

    - by Rudiger
    This an incredibly annoying bug. I had a imageView and 2 Labels in a customCell nib. I changed the locations of all of them in the nib and the labels moved, view didn't. I've cleaned my targets, deleted everything relating to it the library, deleted the cell completely, reset the simulator, built it on a different target (3.1.2) and it still compiles the image in the same stupid spot. Can anyone help this is nuts. Sorry for being blunt but completely frustrated. Edit: I have deleted the nib and created it over again by hand, but with the same names. Doesn't fix it. I've checked to see if im moving it somewhere in the code and no dice.

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