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  • Adding a footer to a table in another view?

    - by cannyboy
    The app I'm making has a settings view which I want to show on the first run of the app. Normally (after the first run) this view will be pushed onto the screen and there will be a "Back" button in the nav bar. However, on first launch I don't want there to be a back button. Instead, I want to add a 'Done' button at the footer of the table... and then the view can be popped. Here's my code (in my initial view's viewDidLoad). I have removed the back button, but don't know how to add the footer and button. NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; if ([prefs stringForKey:@"firstRun"] == nil) { SettingsViewController *settingsView = [[SettingsViewController alloc] initWithNibName:@"SettingsView" bundle:nil]; settingsView.hidesBottomBarWhenPushed = YES; settingsView.navigationItem.hidesBackButton = TRUE; // add footer button here? [[self navigationController] pushViewController:settingsView animated:YES]; [settingsView release]; [prefs setObject:@"OK" forKey:@"firstRun"]; } else { //something }

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  • UIView capturing all events

    - by Josh P.
    I have a UIView that uses several UIGestureRecognizers and this view again has at least one child view that contains a MPMoviePlayerController. When a touch event occurs over the movie player, the main view seems to 'eat' all the events, leaving the media player idle. How can I make sure that the events are delivered correctly to the player?

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  • GKSession sendDataToAllPeers getting invalid parameter

    - by cb4
    This is my first post and I wanted to start it by thanking the many stackoverflow contributors who will never know how much they helped me out these past several days as I worked to complete my first iOS app. I am indebted to them and to this site for giving them a place to post. To 'pay off' some of that debt, I hope this will help others as I have been helped... So, my app uses the GKPeerPickerController to make a connection to a 2nd device. Once connected, the devices can send text messages to each other. The receiving peer has the message displayed in a UIAlertView. Everything was working fine. Then I decided to experiment with locations and added code to get the current location. I convert it into latitude & longitude in degrees, minutes, and seconds and put them into one NSString. I added a button to my storyboard called 'Send Location' which, when tapped, sends the location to the connected peer. This is where I ran into the problem. Both the send text and send location methods call the sendPacket method with a NSString. sendPacket converts the string to NSData and calls sendDataToAllPeers. When I learned how to capture the error, it was "Invalid parameter for - sendDataToAllPeers:withDataMode:error:". [.....pause.....] Well, this was going to be a question but in writing all this to explain the problem, the answer just dawned on me. Did a few tests and verified it now works. The issue was not in sendDataToAllPeers, it was in the conversion of the NSString (strToSend) to NSData: packet = [strToSend dataUsingEncoding:NSASCIIStringEncoding]; Specifically, it was the degree sign character (little circle, ASCII 176). NSASCIIStringEncoding only includes ASCII characters up to 127 so don't use any above that. I'm sure there was a quicker way to find the problem, but I don't know Objective-C or Xcode's debugging facility well enough yet. Whew! Several hours to discover that little tidbit. I did learn a lot, though, and that's always a good thing!

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  • A question is related to state maintainance

    - by user217572
    my question is like that My 5 th view is Acontroller and it has 1 UIButton.when i click on this UIButton my Bcontroller's view opens.this operation wrks perfectly. but i'm actually doing state maintainanace.when i reach to 5 th view of Acontroller.after that i press home button and then when i again click on application as per my state maintainance code 5 th view of Acontroller opens .but when i click on it's UIButton Bcontroller's view not open.why A code of UIButton is as below [self.navigationController pushViewController:bcontroller animated:YES]; bcontroller is nothing but object of Bcontroller

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  • How to change text on a back button

    - by Ilya
    Hi, By default the back button uses as a text on it a title of a viewcontroller. Can I change text on the back button without changing a title of a view controller? I need this because I have a view controller which title is too long to display and in this case I would like to display just "Back" as a caption for back button. I tried the following which didn't work: self.navigationItem.leftBarButtonItem.title = @"Back"; Thanks.

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  • When we should use NSThreads in a cocoa Touch ?

    - by srikanth rongali
    I am writing a small game by using cocos2d. It is a shooting game. Player on one side and enemy on other side. To run the both actions of player shooting and enemy shooting do we should use threads ? Or can we do without using them. At present I am not using threads. But I can manage to do both actions of player and enemy at same time. Should I use threads compulsory good performance ? Or am I doing wrong without using threads ? Please help me from this confusion. Thank you.

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  • Crashing app when i want to go rootview from other view controller

    - by Priyanka
    Hello All, I want to go Root view Controller from another view controller but i got the terminating error. following is the error message in console, Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray removeObjectsInRange:]: index (4) beyond bounds (1)' This is my code for that NSArray *arr=self.navigationController.viewControllers; //ListOfInjuriesViewController *list=[[ListOfInjuriesViewController alloc]init]; [self.navigationController popToViewController:[arr objectAtIndex:2] animated:YES]; So any one can give me the suggestion on it so can remove the crash

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  • ipad subview not loading before code is executing

    - by ethan Criss
    I have a command that should be loading a subview before a particular piece of time intensive code executes. However the command runs, the timely code executes and then the subview shows up. Is there anything I can do to fix this problem? progressViewController = [[ProgressView alloc] initWithNibName:@"ProgressView" bundle:[NSBundle mainBundle]]; [self.view addSubview:[progressViewController view]]; NSString *name=@"guy"; NSString *encodedName =[[NSString alloc] init]; int asci; for(int i=0; i < [name length]; i++) { //NSLog(@"1"); asci = [name characterAtIndex:i]; NSString *str = [NSString stringWithFormat:@"%d,", asci]; encodedName =[encodedName stringByAppendingFormat: str]; } NSString *urlString = [NSString stringWithFormat:@"someurl.com"]; NSURL *theUrl = [[NSURL alloc] initWithString:urlString]; NSString *result=[NSString stringWithContentsOfURL:theUrl]; result = [result substringFromIndex:61]; result = [result substringToIndex:[result length] - 20]; NSLog(result); outLab.text=result; [[progressViewController view] removeFromSuperview];

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  • What is the proper way of hard-coding sections in a UITableView?

    - by Sheehan Alam
    I have a UITableView with 3 sections that are hard coded. Everything is working fine, but I am not sure if I am doing it correctly. Define number of rows in section: - (NSInteger)tableView:(UITableView *)tblView numberOfRowsInSection:(NSInteger)section { NSInteger rows; //Bio Section if(section == 0){ rows = 2; } //Profile section else if(section == 1){ rows = 5; } //Count section else if(section == 2){ rows = 3; } } return rows; } Here is where I build my cells: - (UITableViewCell *)tableView:(UITableView *)tblView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tblView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.numberOfLines = 5; cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:(10.0)]; cell.textLabel.lineBreakMode = UILineBreakModeWordWrap; if ([self.message_source isEqualToString:@"default"]) { if (indexPath.section == 0) { if (indexPath.row == 0) { cell.textLabel.text = [Utils formatMessage:[NSString stringWithFormat: @"%@", mySTUser.bio]]; cell.detailTextLabel.text = nil; } else if(indexPath.row == 1){ cell.textLabel.text = [NSString stringWithFormat: @"%@", mySTUser.website]; cell.detailTextLabel.text = nil; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } } } //more code exists, but you get the point... Now I define my number of sections - (NSInteger)numberOfSectionsInTableView:(UITableView *)tblView { return 3; } Is this the proper way of hard-coding my UITableView? Will I run into any issues when cells are reused?

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  • Dynamically replace HTML element in UIWebView

    - by Skie
    I have some HTML loaded in WebView like this: <html><head></head><body>before <myTag>Content</myTag> after</body></html> I want to replace element myTag with custom text so it should look like: <html><head></head><body>before ____MY_CUSTOM_TEXT___ after</body></html> Also I can't change initial HTML. How I can do this with JavaScript? My not finished code: var elements = document.getElementsByTagName( 'myTag' ); var firstElement = elements[0]; var parentElement = firstElement.parentNode; var html = parentElement.innerHTML; parentElement.innerHTML = html.replace(?????, '____MY_CUSTOM_TEXT___'); I don't know how to get string value of element to replace (?????).

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  • Which way to store this data is effective?

    - by Tattat
    I am writing a game, which need a map, and I want to store the map. The first thing I can think of, is using a 2D-array. But the problem is what data should I store in the 2D-array. The player can tap different place to have different reaction. So, I am thinking store a 2D-array with objects, when player click some position, and I find it in the array, and use the object in that array to execute a cmd. But I have a concern that storing lots of object may use lots of memory. So, I am think storing char/int only. But it seems that not enough for me. I want to store the data like that: { Type:1 Color:Green } No matter what color is, if they are all type 1, the have same reactions in logic, but the visual effect is based on the color. So, it is not easy to store using a prue char/int data, unless I make something like this: 1-5 --> all type 1. 1=color green , 2=color red, 3 = color yellow.... ... 6-10 --> all type 2. 2 = color green, 2 = color red ... ... So, do you have any ideas on how to minimize the ram use, but also easy for me to read... ...thx

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  • Map resources when added to the project

    - by Espuz
    I have a .h when I map all the image files names and xib names with #defines. For example, if I have an image called "buttonBackground.png" I map it in my .h as #define BUTTON_BACKGROUND_PNG_FILE @"buttonBackground.png" It's possible to detect when a resource is added to the bundle and create the correspond define with a script?

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  • Question about memory usage

    - by sudo rm -rf
    Hi there. I have the following method: +(NSMutableDictionary *)getTime:(float)lat :(float)lon { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init]; [dictionary setObject:hour forKey:@"hour"]; [dictionary setObject:minute forKey:@"minute"]; [dictionary setObject:ampm forKey:@"ampm"]; return dictionary; } A lot of the method is chopped off, so I think I need the pool for some other stuff in the method. Here's my question. I know that I need to release the following objects: [dictionary release]; [pool release]; However, I can't release the dictionary before I return it, but as soon as I return it the rest of the method isn't performed. What should I do?

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  • Add image contact in address book

    - by Paska
    Hi all, how can i use kABPersonImageFormatThumbnail or something else to set an image to a contact in address book??? I want use a /resources file. Now i use ABMultiValueAddValueAndLabel(multiPhone, @"+39-02-1234567", kABWorkLabel, NULL); to set a value in address book. An image seems to be the same behavior, but what type need use? ABMultiValueAddValueAndLabel(multiPhone, ?????, kABPersonImageFormatThumbnail, NULL); Thanks A

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  • Restricting copy,paste option for a particular UITextfield

    - by EXC_BAD_ACCESS
    Hi, My UIView contains Two UITextField.I need to restrict copy,paste option for one textfield.I don't want to restrict that for another. When i am using the following code,Both the field gets restricted from copy,paste. -(BOOL)canPerformAction:(SEL)action withSender:(id)sender { if ( [UIMenuController sharedMenuController] ) { [UIMenuController sharedMenuController].menuVisible = NO; } return NO; } Can any one provide me the solution to solve my problem.

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  • Why can't I call my doSomething method?

    - by Tattat
    This is my DrawSomethingCmd: #import "Command.h"; @interface DrawSomethingCmd : Command { } -(void)doSomething; -(void)execute; @end and the DrawSomethingCmd.m's doSomething method is: -(void)doSomething{ NSLog(@"did"); } The Command.h: #import <Foundation/Foundation.h> @interface Command : NSObject { } -(void)execute; And Command.m: #import "Command.h" @implementation Command -(id)init{ return self; } -(void)execute{ } @end And I have a method like this: DrawSomethingCmd *tempCmd = [[DrawSomethingCmd alloc] init]; [tempCmd doSomething]; But my console didn't show anything. What's going on?

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  • expandable and collapsable uitableviewcell

    - by Jayshree
    Hello everybody. I want to achieve something like an expand and collapse uitableviewcell. The part of collapsing and expanding on user tap has been achieved. but what i am looking for is the feature of showing more and less. that is when the uitableviewcell has not expanded to show full view, the word more shud be displayed. and when the uitableviewcell is expanded it shud show the word less at the end. So that whenever the user taps on more, then only the uitableview shud expand and vice versa. so any ideas of how i can do this. something like on webpages. when u click on more link it expands the area and lets u see entire content.

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  • Problem with accessing classes from another class.

    - by srikanth rongali
    I have a classA, classB,classC. I have another class classABC; All are CCLayer inherited. I need to call all the classA, classB, classC from classABC. #import <Foundation/Foundation.h> #import "cocos2d.h" @interface classABC : CCLayer { classA *aClass; } @property(nonatomic, retain)classA *aClass; @end #import "classABC" #import "classA.h" #import "classB.h" #import "classC.h" @implementation classABC -(id)init { if( (self = [super init]) ) { ClassA *aClass = [[ClassA alloc]init]; CCScene *aClassS = [CCScene node]; CCLayer * aClassL = [aClass node]; [aClassS addChild: aClassL]; [[CCDirector sharedDirector] setAnimationInterval:60.0/60]; [[CCDirector sharedDirector] replaceScene: aClass]; } return self; } @end But I am not getting the classA displayed. How should I do it ? Thank You.

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