发现了旧的拼图样本苹果SDK

Question

I just come across the old jigsaw source that apple used to have on offer. Ive got a few errors when compling just wondered if anyone could help.

I get the error: error: incompatible type for argument 2 of 'endTrackingPiece:position:' error: incompatible type for argument 2 of 'continueTrackingPiece:position:'

- (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
{
    UITouch*                touch = [touches anyObject];

    //Check if we have a double-tap in the piece view and notify the application controller or begin tracking piece dragging
    if([touch tapCount] >= 2)
    [(AppController*)[[UIApplication sharedApplication] delegate] resetPiece:self];
    else {
        _tracking = YES;
        [(AppController*)[[UIApplication sharedApplication] delegate] beginTrackingPiece:self position:[touch locationInView]];
    }
}

- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event
{
    UITouch*                touch = [touches anyObject];

    //Continue tracking piece dragging
    if(_tracking)
    [(AppController*)[[UIApplication sharedApplication] delegate] continueTrackingPiece:self position:[touch locationInView]];
}

- (void) touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event
{
    UITouch*                touch = [touches anyObject];

    //Finish tracking piece dragging
    if(_tracking) {
        [(AppController*)[[UIApplication sharedApplication] delegate] endTrackingPiece:self position:[touch locationInView]];
        _tracking = NO;
    }
}

Thanks in advance

Answer 1

The problem here is that locationInView is expecting a UIView * as a parameter, see reference here:

http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITouch_Class/Reference/Reference.html

So, for each of those three lines, the fix is to change

[touch locationInView]

to

[touch locationInView: self]

Prior to this though, you may need to change the base SDK in the project file, if it's referring to Aspen1.2.sdk, the version I found is. I updated it to iOS4.3 (this is all in XCode 4, I should add.)

If you want to get rid of the deprecation warning as well, change

_puzzles = [[[NSFileManager defaultManager] directoryContentsAtPath:path] mutableCopy];

to

_puzzles = [[[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:NULL] mutableCopy];

in AppController.m _resetPuzzle.

After doing the above, I get a cleanly building project which runs in the iOS simulator. Make sure you don't have your volume muted or you will miss the "Yay!" when you complete a puzzle :)