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  • iPhone, change color to each letter

    - by Paul
    It is possible to change a NSString color by letter? For example, if you have NSString *A=@"ASDFGH"; show in UILabel ASD with red and FGH with blue. And another question.. If I have a NSString, can I access the letter I want? For example, in NSString *A=@"ASDFGH"; how can I know what is the second letter which is S, or the third, which is D?

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  • issue with tab bar view displaying a compound view

    - by ambertch
    I created a tab bar application, and I make the first tab a table. So I create a tableView controller, and go about setting the class identity of the view controller for the first tab to my tableView controller. This works fine, and I see the contents of the table filling up the whole screen. However, this is not what I actually want in the end goal - I would like a compound window having multiple views: - the aforementioned table - a custom view with data in it So what I do is create a nib for this content (call it contentNib), change the tab's class from the tableView controller to a generic UIViewController, and set the nib of that tab to this new contentNib. In this new contentNib I drag on a tableView and set File's Owner to the TableViewController. I then link the dataSource and delegate to file's owner (which is TableViewController). Surprisingly this does not work and I receive the error: **Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3b0f910'** This is bewildering to me since the file's owner is the TableViewController, which has been assigned to be both the dataSource and delegate. Does someone have either insight into my confusions, or a link to an example of how to have a compound view include a tableView? *update* I see this in the Apple TableView programming guide: "Note: You should use a UIViewController subclass rather than a subclass of UITableViewController to manage a table view if the view to be managed is composed of multiple subviews, one of which is a table view. The default behavior of the UITableViewController class is to make the table view fill the screen between the navigation bar and the tab bar (if either are present)." <----- I don't really get what this is telling me to do though... if someone can explain or point me to an example I'd be much appreciated!

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  • What color scheme do you use for programming?

    - by EndangeredMassa
    I get a lot of attention at work because I am the only one who bothered to change the default color settings in Visual Studio. I just modified them myself. I can provide the settings file if anyone cares to import it. Here's an example of how it looks. It reminds me of DOS/BASIC programming before I actually knew how to program. I also find it to be very readable. What color schemes do you use?! EDIT: To clarify, I only edited the text settings. The windows and panels of VS2005 are still the windows default.

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  • Pushing View from UITableView Problem

    - by golfromeo
    Basically, what I want is to be able to press a record in a table, and have it push to another view. To do this, I created a nib file and a UIViewController subclass (for the "pushed" view). I set the nib file's "File Owner" to be the controller I created. Then, in the view controller of the table that will push that view, I set the didSelectRowIndexAtPath: method to include the following: SearchTableController *vc = [[SearchTableController alloc] initWithNibName:@"SearchTable" bundle:[NSBundle mainBundle]]; [self.navigationController pushViewController:vc animated:YES]; [vc release]; (where "SearchTableController" is the name of the UIViewController subclass and "SearchTable" is the name of the nib file) However, when I run this code and click on the record, nothing happens- the app doesn't crash, but the view doesn't get pushed. The code is getting run, because it works when I NSLog(), but it doesn't seem to be pushing the view. Thanks for any help in advance.

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  • How do I get more control of UIImageView animation?

    - by Pickles
    I'm trying to display a series of images in a animation where the duration between the images changes frame to frame. I can successfully animate images where the duration is the same. I've looked into subclassing UIImageView but it doesn't seem to allow you access anything that could be helpful. I've also looked into subclassing UIView directly but it seems like I'd have to write a lot of the stuff that UIImageView already does for me. Is there a way to do this with UIImageView? Or if I am going to have to build my own UIView animation can someone point me the right direction to get started? Thanks.

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  • What is the default resolution of the image saved by iPhone UIImagePicker? is it 1500 x 2000?

    - by zerlphr
    Hi, i have problem trying to find out the default resolution of the images taken and saved by UIImagePicker. I'm trying to merge the photo taken and another image from my library and without knowing what's the size of the image, i'm not able to merge the 2 images correctly. Another question is that: are there different resolutions for the different iphones such as 2g, 3g or 3gs?

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  • iPhone - Change app icon pointed to by info.plist within the application?

    - by Batgar
    Is there any way to change the 47x47 PNG, pointed to within info.plist, for the iPhone springboard icon from within code? I understand I can add a translation and change the springboard icon per language that the iPhone supports via a changed info.plist per language, but I would like to change the springboard icon for my iPhone app based on a user preference within the app. Any ideas? I haven't tried this, but can a file be copied over another within an app bundle? Could I ship with info.plist pointing to "base.png" then replace "base.png" with another PNG I package with my app from within code? Thanks. --Batgar

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  • DrawRect in CPLayerHostingView?

    - by senthilmuthu
    0 Hi, i am using Core-plot . but when i declare the normal UIView as CPLayerHostingView,how can i handle drawRect of that view , i cant give another custom UIview name and write code in drawRect of that view?please any help to handle drawRect of CPLayerHostingView?

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  • Replace text in code with counting numbers

    - by Gpx
    Hi, due to testing and time measuring i have to write some kind of log into existing c# winforms code in Visual Studio 2010. I want to hold the changes and the work very small so my question is about replacing text in my call by counting numbers. Lets say i want to past a line like Log.WriteLine(position) many times in the code and then replace "position" with numbers starting from 1 to n in on turn. I cant use a counter in this case because of many loops i don´t get the right position. Thanks for any suggestions, Gpx

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  • How to play sound automatically when scrolling to the next page?

    - by viper15
    I'm using Page Control example from Apple. I want to be able to scroll horizontally to certain page and get the sound automatically play when viewing that page? And then sound stop when viewing the other page? So, for example. On page 1, i have some texts. When i go to the next page which is on page 2, i want sound to be automatically play and stop when i go to page 3. I'm planning to use If statements (since it's not that many pages) to determine which page will get the sound. My question is simple. How do you get the sound play automatically when viewing certain page? By the way, I'm planning to use System Sound. I know how to play the sound using button. But how do you get it automatically - start when certain page appear and stop when moving to the next page. Thank you in advance! Edited: I put in this code in ViewDidLoad but the sound played on sooner before it reach the page intended: // Set the label and background color when the view has finished loading. - (void)viewDidLoad { pageNumberLabel.text = [NSString stringWithFormat:@"Page %d", pageNumber + 1]; self.view.backgroundColor = [MyViewController pageControlColorWithIndex:pageNumber]; if (pageNumber == 3) { NSString *path = [[NSBundle mainBundle] pathForResource:@"crunch" ofType:@"wav"]; SystemSoundID soundID; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path], &soundID); AudioServicesPlaySystemSound(soundID); } }

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  • Elegant solution to retrieve custom date and time?

    - by kefs
    I am currently using a date and time picker to retrieve a user-submitted date and time, and then I set a control's text to the date and time selected. I am using the following code: new DatePickerDialog(newlog3.this, d, calDT.get(Calendar.YEAR), calDT.get(Calendar.MONTH), calDT.get(Calendar.DAY_OF_MONTH)).show(); new TimePickerDialog(newlog3.this, t, calDT.get(Calendar.HOUR_OF_DAY), calDT.get(Calendar.MINUTE), true).show(); optCustom.setText(fmtDT.format(calDT.getTime())); Now, while the above code block does bring up the date and time widgets and sets the text, the code block is being executed in full before the user can select the date.. ie: It brings up the date box first, then the time box over that, and then updates the text, all without any user interaction. I would like the date widget to wait to execute the time selector until the date selection is done, and i would like the settext to execute only after the time widget is done. How is this possible? Or is there is a more elegant solution that is escaping me? Edit: This is the code for DatePickerDialog/TimePickerDialog which is located within the class: DatePickerDialog.OnDateSetListener d=new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { calDT.set(Calendar.YEAR, year); calDT.set(Calendar.MONTH, monthOfYear); calDT.set(Calendar.DAY_OF_MONTH, dayOfMonth); //updateLabel(); } }; TimePickerDialog.OnTimeSetListener t=new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view, int hourOfDay, int minute) { calDT.set(Calendar.HOUR_OF_DAY, hourOfDay); calDT.set(Calendar.MINUTE, minute); //updateLabel(); } }; Thanks in advance

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  • Cannot commit in sqlite using a wrapper

    - by user271753
    - (IBAction)SetupButtonPressed:(id)sender { Sqlite *sqlite = [[Sqlite alloc] init]; NSString *writableDBPath = [[NSBundle mainBundle]pathForResource:@"Money"ofType:@"sqlite"]; if (![sqlite open:writableDBPath]) return; [sqlite executeNonQuery:@"CREATE TABLE test (key TEXT NOT NULL, num INTEGER, value TEXT);"]; } Hey guys the above code runs at first but the next time , the table does not exists in the database ! I am using http://th30z.netsons.org/2008/11/objective-c-sqlite-wrapper/ what am I doing wrong ? Or could you please suggest me a really simple tutorial for core data ?

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  • How to use the variable declared in one class in another class in Obj C.

    - by srikanth rongali
    I have a NSDate *date1 in class1 implementation file(I initialized it as Global variable). I have NSDate *date2 in class 2 implementation file (initialized it as Global variable). I need to calculate the NSTimeInterval between the two dates in class 2. But I could not do it. I could not access date1 in this class. It is giving error as (date2 undeclared). Please give me help in how to call other class variables in this class. Thank you.

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  • Dereferencing deleted pointers always result in an Access Violation ??

    - by m3rLinEz
    I have a very simple C++ code here: char *s = new char[100]; strcpy(s, "HELLO"); delete [] s; int n = strlen(s); If I run this code from Visual C++ 2008 by pressing F5 (Start Debugging,) this always result in crash (Access Violation.) However, starting this executable outside the IDE, or using the IDE's Ctrl+F5 (Start without Debugging) doesn't result in any crash. What could be the difference? I also want to know if it's possible to stably reproduce the Access Violation crash caused from accessing deleted area? Is this kind of crash rare in real-life?

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  • Partial coverage of a return statement in C++/CLI

    - by brickner
    I have C++/CLI code and I'm using Visual Studio 2008 Team Suite Code Coverage. The code header: // Library.h #pragma once #include <string> using namespace System; namespace Library { public ref class MyClass { public: static void MyFoo(); static std::string Foo(); }; } The code implementation: #include "Library.h" using namespace Library; using namespace System; void MyClass::MyFoo() { Foo(); } std::string MyClass::Foo() { return std::string(); } I have a C# unit test, that calls MyClass.MyFoo(): [TestMethod] public void TestMethod1() { Library.MyClass.MyFoo(); } For some reason, I don't get a full code coverage for MyClass. The Foo() method has 3 uncovered blocks and 5 covered blocks. The closing curly brackets (}) are marked in orange - partially covered. I have no idea why is it partially covered instead of fully covered, and this is my question.

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  • How to email CLLocationCoordinate2D as a link

    - by lucasweb
    I am trying to emulate the Maps 'Share Location' via email functionality. I have the latitude and longitude of my location and am currently using it to display the location on a map via MKMapView. I also have functionality that composes an email from the app and I would like to include the location in it but can not figure out how to construct a link, using the longitude and latitude. I have seen other apps with apps with this functionality so I know it is possible. Any help would be much appreciated. Thanks in advance.

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