Why can't I convert this PDFMaker from xib to storyboard? - ios

Question

I need this small PDFMaker code in my larger code project, which is almost done expect for the PDFMaker. My larger project is all done in storyboard, and the PDFMaker in xib. I didn't see how you could do them both in the same project. I used the Apple "Converting to Storyboards Release Notes" to convert the PDFMaker from xib to storyboard. Pretty easy and straightforward. However, I can't get either the didClickMakePDF or didClickOpenPDF selectors to work. I keep getting the message
unrecognized selector sent to instance
and a thread pointer to the Main.m file
return UIApplicationMain(argc, argv, nil, NSStringFromClass([MTAppDelegate class]));"
line. I'm new to coding and have been working on this for over 20 hours with no success. All the actions and outlets seem to be set up fine in both the .h, .m, and storyboard files. Could somebody please help me to fix this, or suggestion a different approach to be able to use this PDFMaker code in a storyboard-based project?
Here is my .h file:
#import <UIKit/UIKit.h>
#import "ReaderViewController.h"
#interface MTViewController : UIViewController <ReaderViewControllerDelegate>
- (IBAction)didClickMakePDF:(id)sender;
- (IBAction)didClickOpenPDF:(id)sender;
#end
Here is the relevant part of the .m file for the didClickMakePDF:
- (IBAction)didClickMakePDF:(id)sender {
[self setupPDFDocumentNamed:#"NewPDF" Width:850 Height:1100];
[self beginPDFPage];
CGRect textRect = [self addText:#"This is some nice text here, don't you agree?"
withFrame:CGRectMake(kPadding, kPadding, 400, 200) fontSize:48.0f];
CGRect blueLineRect = [self addLineWithFrame:CGRectMake(kPadding, textRect.origin.y + textRect.size.height + kPadding, _pageSize.width - kPadding*2, 4)
withColor:[UIColor blueColor]];
UIImage *anImage = [UIImage imageNamed:#"tree.jpg"];
CGRect imageRect = [self addImage:anImage
atPoint:CGPointMake((_pageSize.width/2)-(anImage.size.width/2), blueLineRect.origin.y + blueLineRect.size.height + kPadding)];
[self addLineWithFrame:CGRectMake(kPadding, imageRect.origin.y + imageRect.size.height + kPadding, _pageSize.width - kPadding*2, 4)
withColor:[UIColor redColor]];
[self finishPDF];
}
Here is the Main.m file:
#import <UIKit/UIKit.h>
#import "MTAppDelegate.h"
int main(int argc, char *argv[])
{
#autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([MTAppDelegate class]));
}
}

Answer 1

Your error messages contain the selector didClickMakePDF (with no colon, so no argument) but your code uses the selector didClickMakePDF: (with a colon, so expecting one argument). These are different selectors.
In your storyboard, you need to delete the connections from your buttons to those (incorrect) actions and create connections from the buttons to the correct actions.
UPDATE
Sometimes the storyboard editor (“Interface Builder” or IB) gets out of sync with the source code, remembering methods that you've deleted or ignoring methods that you've created. Here are some things to try, in increasing order of brutality:
Make sure all files are saved. (Command-Option-S saves all files.)
Close all files in the project window by pressing Control-Command-W repeatedly, until the editor window is blank.
Quit and restart Xcode.
Clean your build folder by pressing Option-Shift-Command-K.
Delete your Derived Data folder for the project. Close your project, then open the Organizer window and click on the Projects tab. Click on your project in the left-side list. Then click the Delete… button to the right of the Derived Data line in the right-side pane.
UPDATE 2
When you delete a resource file (like a xib file) from your app and then run the app, Xcode doesn't delete the resource file from the app installation on the simulator or device. You need to delete the app entirely from the simulator or device (in the usual way, by making the icons wiggle and then tapping the X button) to remove the obsolete xib file.