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  • label in my tabel celll

    - by ven in Iphone world
    hi this is lak.. thank you for your fast feedback but that not worked for me i am using labels in table.. UILabel *label1 = (UILabel *) [cell viewWithTag:1]; label1.backgroundColor = [UIColor clearColor]; label1.text=aStation.station_name; label1.textColor = [UIColor colorWithRed:0.76 green:0.21 blue:0.07 alpha:1.0]; [label1 setFont:[UIFont fontWithName:@"Trebuchet MS" size:15]]; for this type of label i want to limit number of characters. hope i will get an answer..

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  • add text to UITextField at desired location

    - by Ankit Sachan
    Hello, Hello, I am quite new to iphone development. I have a situation here. I have some labels which can be dragged across the screen. When any of these labels are dragged to some textfield and released over a textfields UIlabel test is assigned to that text field. Now the problem is this I want to assign the text of UILabel to some specific position in textfield according to release of textfield i.e If user releases at the beginning of text field then it should be appended at the beginning and if somewhere near end of text of textfield then it should be appendended at the end. Can you help me to fabricate this condition. Thanx in advance

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  • With and Without Dot Notation?

    - by fuzzygoat
    I am trying to write the following without using dot notation ... [scrollView setMinimumZoomScale: scrollView.bounds.size.width / image.size.width]; Is this right? [scrollView setMinimumZoomScale: [scrollView bounds].size.width / [image size].width]; cheers Gary.

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  • drawRect is not refreshing the screen

    - by coure06
    I have this code in my drawRect method float aValue = .0167f; float fValue = 20; for(int i=1; i<=6; i++) { CGContextSelectFont(context, "Arial", fValue, kCGEncodingMacRoman); CGContextSetCharacterSpacing(context, 0); CGContextSetTextDrawingMode(context, kCGTextFill); NSString *hString = [[NSString alloc] initWithFormat:@"%i",i]; CGContextSetRGBFillColor(context, 1, 1, 1, aValue); CGContextShowTextAtPoint(context, i*25, i*16, [hString UTF8String], [hString length]); aValue += 0.167; fValue += 1; } I am calling a method using NSTimer like this staticTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(refreshUIView) userInfo:nil repeats:YES]; here is the refreshUIView -(void)refreshUIView { [self setNeedsDisplay]; } Problem is that drawRect is not clearing the screen, its just over writing what have been written last time on screen.

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  • UITableView loading before variables being set

    - by Sheehan Alam
    I have a label on a UITableView. When clicked it will refresh my tableview and set the top cell's height. When I am setting the cell height, I am checking if a certain variable is TRUE. If true it will show the large height, if false, the smaller height. At the time of cell height creation, my variable is always false. It is a member variable and its value is being set when the user clicks on the label. How can I make sure that the variable is set before the table refreshes?

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  • Any simple way to "resize" an NSBezierPath?

    - by d11wtq
    I have an NSBezierPath that I'm filling and stroking. I'd like to add some inner glow to the path (a light stroke, just inside of the outer stroke), and the thing that comes to mind is to use the same path shrunk by 1 pixel (the size of the line that is already )stroked. Is there a way to do this? Alternatively, is there some sort of pattern I can use when applying both a border (stroke) and a glow to a bezier path? Example, the (extremely subtle) inner glow on the Google Chrome tabs:

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  • iOS - Application logging test and production code

    - by Peter Warbo
    I am doing a bunch of logging when I'm testing my application which is useful for getting information about variable state and such. However I have read that you should use logging sparsely in production code (because it can potentially slow down your application). But my question is now: if my app is in production and people are using it, whenever a crash (god forbid) occurs, how will I be able to interpret the crash information if I have removed the logging statements? Then I suppose I will only have a stacktrace for me to interpret? Does this mean I should leave logging in production code only WHERE it's really essential for me to interpret what has happened? Also how will the logging statements relate to the crash reports? Will they be combined? I'm thinking of using Flurry as analytics and crash reports...

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  • Is it possible to have a sound play before/during the splash screen?

    - by Jeff
    My app takes a few seconds to load and I have a splash screen. Once "viewDidLoad" I have a little sound play. I feel that the sound would be in better use if it started playing when the splash screen popped up. Is it possible to have a sound start before/during the splash screen? Here is my code: (under viewDidLoad) NSString *soundFilePath = [[NSBundle mainBundle] pathForResource: @"intorSound" ofType: @"aif"]; NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath]; player = [[AVAudioPlayer alloc] initWithContentsOfURL: fileURL error: nil]; [player setVolume: soundVolumeValue]; // available range is 0.0 through 1.0 [player play]; [fileURL release]; Thank you for your time!

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  • Manipulating a NSTextField via AppleScript

    - by Garry
    A little side project I'm working on is a digital life assistant, much like project JARVIS. What I'm trying to do is speak to my mac, have my words translated to text and then have the text interpreted by my program. Currently, my app is very simple, consisting of a single window containing a single wrapped NSTextView. Using MacSpeech Dictate, When I say the custom command "Jeeves", MacSpeech ensures that my app is frontmost, highlights any text in the TextField and clears it, then presses the Return key to trigger the textDidEndEditing method of NSTextField. This is done via Applescript. MacSpeech then switches to dictation mode and the next sentence I say will appear in the NSTextField. What I can't figure out is how to signify that I have finished saying a command to my program. I could simply say another keyword like "execute" or something similar that would send an AppleScript return keystroke to my app (thereby triggering the textDidEndEditing event) but this is cumbersome. Is there a notification that happens when text is pasted into a NSTextField? Would a timer work that would fire after maybe three seconds once my program becomes frontmost (three seconds should be sufficient for me to say a command)? Thanks,

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  • Inconsistent Frame / Bounds of UIImage and UIScrollView

    - by iFloh
    this one puzzles me. I have an Image with a width of 1600 pixels and height of 1819 pixels. I load the image as UIImageView into an UIScrollView and set the "contentsize parameter" iKarteScrollView.contentSize = CGSizeMake(iKarteImageView.bounds.size.width, iKarteImageView.bounds.size.height); NSLog(@"Frame - width %.6f, height %.6f - Bounds - width %.6f, height %.6f", myImageView.frame.size.width, myView.frame.size.height, myImageView.bounds.size.width, myImageView.bounds.size.height); NSLog(@"Content size width %.6f, height %.6f", myScrollView.contentSize.width, myScrollView.contentSize.height); The NSLog shows the following: Frame - width 1600.000000, height 1819.000000 - Bounds - width 1600.000000, height 1819.000000 Content size width 1600.000000, height 1819.000000 Now comes the miracle, in a subsequent method of the same object I call the same NSLog again. But this time the result is Frame - width 405.000000, height 411.000000 - Bounds - width 1601.510864, height 1625.236938 Content size width 404.617920, height 460.000000 Why is the frame size suddely 405 by 411 pixels? How can the Bounds be 1601 by 1625 where 1625 is roughly 200 pixels less than the original size? When Positioning a further UIImageView at the coordinates of 20 by 1625, the UIImageView is displayed an estimated 200 pixels above the bottom of the content of the UIScrollView. I'm lost ...

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  • NSSavePanel selecting part of file name

    - by regulus6633
    How do I set the part of the file name that is selected in NSSavePanel? I only want the file name selected and not the file extension. Here's what I noticed. If I setAllowedFileTypes: for the save panel then only the file name is selected but not the file extension. However if I don't set the allowed file types then the file extension is selected along with the file name. I don't want to use setAllowedFileTypes but I still want to control the selection so that the file extension is not selected. Can that be done?

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  • Real world goods in iPhone app?

    - by Moshe
    I've seen questions asked here before, but they do not address the issue. That said: "In App Purchases" specifically may not be real world goods or services, according to Apple. What services allow integration with iPhone apps so that I can use ObjectiveC to sell things in an iPhone app?

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  • How do I add NSDecimalNumbers?

    - by Terry B
    OK this may be the dumb question of the day, but supposing I have a class with : NSDecimalNumber *numOne = [NSDecimalNumber numberWithFloat:1.0]; NSDecimalNumber *numTwo = [NSDecimalNumber numberWithFloat:2.0]; NSDecimalNumber *numThree = [NSDecimalNumber numberWithFloat:3.0]; Why can't I have a function that adds those numbers: - (NSDecimalNumber *)addThem { return (self.numOne + self.numTwo + self.numThree); } I apologize in advance for being an idiot, and thanks!

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  • How to call a method of a specific class from another class (created in this specific class) ?

    - by choise
    I created a TTModelViewController. in the createModel Method i created a TTURLRequestModel. after Loading content in the TTURLRequestModel i want to call a method in my TTModelViewController. TTModelViewController - (void) createModel { requestModel = [[singlePostModel alloc] initWithId:@"54"]; } - (void)didLoadModel:(BOOL)firstTime { NSLog(@"loaded"); } TTURLRequestModel (singlePostModel) - (void)requestDidFinishLoad:(TTURLRequest*)request { //doing something [super requestDidFinishLoad:request]; } first i thought "didLoadModel" gets called after requestDidFinishLoad was called, but its before. So, how can i call a method in my TTModelViewController after request is finished loading? is there a method that already does that and i only have to overwrite this? or something else? thanks // if knowbody knows how to do this with three20, anybody can tell me how to do this in general?

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  • iPhone: Does it ever make sense for an object to retain its delegate?

    - by randombits
    According to the rules of memory management in a non garbage collected world, one is not supposed to retain a the calling object in a delegate. Scenario goes like this: I have a class that inherits from UITableViewController and contains a search bar. I run expensive search operations in a secondary thread. This is all done with an NSOperationQueue and subclasses NSOperation instances. I pass the controller as a delegate that adheres to a callback protocol into the NSOperation. There are edge cases when the application crashes because once an item is selected from the UITableViewController, I dismiss it and thus its retain count goes to 0 and dealloc gets invoked on it. The delegate didn't get to send its message in time as the results are being passed at about the same time the dealloc happens. Should I design this differently? Should I call retain on my controller from the delegate to ensure it exists until the NSOperation itself is dealloc'd? Will this cause a memory leak? Right now if I put a retain on the controller, the crashes goes away. I don't want to leak memory though and need to understand if there are cases where retaining the delegate makes sense. Just to recap. UITableViewController creates an NSOperationQueue and NSOperation that gets embedded into the queue. The UITableViewController passes itself as a delegate to NSOperation. NSOperation calls a method on UITableViewController when it's ready. If I retain the UITableViewController, I guarantee it's there, but I'm not sure if I'm leaking memory. If I only use an assign property, edge cases occur where the UITableViewController gets dealloc'd and objc_msgSend() gets called on an object that doesn't exist in memory and a crash is imminent.

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  • Could InAppSettingsKit do this, or is there another library?

    - by cannyboy
    I'm trying to implement a system whereby the user is initially presented with a single tablecell, in a uitableview (grouped style), within a uinavigationview. --------------- + | add record | --------------- When they click on the cell, they are pushed onto a new screen where they fill in a few textviews (perhaps imbedded in a tableview's cells) --------------- | (name) | --------------- | (phone num) | --------------- Then when they go back, they can see the new record as well as the 'add record' cell. --------------- | record 1 | --------------- + | add record | --------------- (When they go into record 1 again there would be a delete button) Is there any sample code or libraries which would achieve this? What about InAppSettingsKit? It's more the presentation I'm concerned with. I can handle the saving of data myself.

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  • Releasing dynamically added UILabel.

    - by coure06
    I am adding a no. of UILable dynamically to my view like this UILabel *test = [[UILabel alloc] initWithFrame:CGRectMake(x, y, 50, 50)]; [self.view addSubview:tick]; Is it necessary to release these UILabel from memory in viewDidUnLoad and dealloc, if yes how i will release them? how i will get their reference?

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  • release vs setting-to-nil to free memory

    - by Dan Ray
    In my root view controller, in my didReceiveMemoryWarning method, I go through a couple data structures (which I keep in a global singleton called DataManager), and ditch the heaviest things I've got--one or maybe two images associated with possibly twenty or thirty or more data records. Right now I'm going through and setting those to nil. I'm also setting myself a boolean flag so that various view controllers that need this data can easily know to reload. Thusly: DataManager *data = [DataManager sharedDataManager]; for (Event *event in data.eventList) { event.image = nil; event.thumbnail = nil; } for (WondrMark *mark in data.wondrMarks) { mark.image = nil; } [DataManager sharedDataManager].cleanedMemory = YES; Today I'm thinking, though... and I'm not actually sure all that allocated memory is really being freed when I do that. Should I instead release those images and maybe hit them with a new alloc and init when I need them again later?

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  • Is it possible to send OSC commands to an iPad via the Camera Connection Kit?

    - by HELVETICADE
    I'm building a small controller device that I'd like to partner with a computer. I've settled on using OSC out from my custom built hardware and am pretty satisfied with what I can get from WOscLib. Two goals I'd like to achieve are portability and a very nice ratio between battery:computing power, and this has lured me towards using iPhoneOS to accomplish my goals. I think the iPad would suit my needs perfectly, except that using wifi to broadcast OSC out from my device requires that device to be connected to a third device with a wifi chip, and this would destroy the goal of portability, whilst also introducing potential latency and stability headaches. My question is pretty simple: Can I push OSC commands FROM my controller TO an iPad via USB and the Camera Connection Kit? If I could accomplish this, the two major goals of my project would be fulfilled very nicely. This seems like it should be a simple little question, but researching this obsessively over the past few weeks has left me more almost more uncertain than if I had done no research at all. I'd really like some more confidence before I go down this route, and it seems like it should be possible. Any insight would be very, very appreciated.

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  • UITableView superClass for delegate?

    - by fuzzygoat
    A quick question, I am setting a delegate for UITableView and I have a question regarding setting the delegate and dataSource properties. I have noticed that the properties for delegate and dataSource are not available, I was thinking that adopting the protocols would make them available. But I am now thinking that I maybe have the superclass for my delegate class wrong. Currently I have: -(void)viewDidLoad { TestDelegate *tempDelegate = [[TestDelegate alloc] init]; [self setMyDelegate:tempDelegate]; // setDelegate // setDataSource [tempDelegate release]; [super viewDidLoad]; } My interface for TestDelegate looks like: @interface TestDelegate : NSObject <UITableViewDelegate, UITableViewDataSource> { NSArray *listData; int myCounter; } Can I ask if the above should be: @interface TestDelegate : UITableView <UITableViewDelegate, UITableViewDataSource> { NSArray *listData; int myCounter; } gary EDIT: I think it might be right as NSObject, I have a viewtableView in IB, thats what I will need to connect my delegate class to. I added to tableView in IB so maybe I just need to make it available in Xcode.

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