Two Compile Errors I can't seem to clear: Hillegass Book (FIXED)
Two Compile Errors I can't seem to clear: Hillegass Book (FIXED)
- Subject: Two Compile Errors I can't seem to clear: Hillegass Book (FIXED)
- From: Amanda Rains <email@hidden>
- Date: Sun, 30 Oct 2011 19:21:18 -0700
Oops forgot to send this fixed message to list.
Michael
OK! Thanks - You are correct on all accounts.
By following your advice below I eliminated the warnings.
AND of course the problem still persisted.
I First checked the connections in the Interface Builder and they seemed ok at first glance.
I put a breakpoint on the first line of code and after changing voices from 'Alex' to 'Agnes' the breakpoint was not reached
SO... I went back and the read the book very carefully and it states "Besides having a dataSource outlet, a table view has a delegate outlet"
When I followed the book in connecting up the various elements to the AppController it didn't tell me about connecting the TableView delegate to the AppController.
AND so with your comments below I decided to go ahead and make the connection AND of course the program works correctly.
No compile errors or warnings.
I can switch voices.
SO ITS FIXED - Thanks
Amanda
On Oct 30, 2011, at 9:35 AM, Michael Babin wrote:
On Oct 30, 2011, at 10:30 AM, Amanda Rains wrote:
Running Xcode 3.2.6
on Mac OSX 10.6.8 (Still on Snow Leopard)
on MacBook
In Chapter 6 of Hillegass's Book "Cocoa Programming for Mac OS X Third Edition
I don't have the third edition of the book, but I do have the second edition. From your description, this sounds very similar to Chapter 5 in the second edition (Helper Objects).
Modifying the Speech Synthesis Program by adding the Table View of Voices.
On Page 96
adding this line to the init method
[speechSynth setDelegate:self];
The compile yields the following error message
warning: class 'AppController' does not implement the 'NSSpeechSynthesizerDelegate' protocol
In the 10.6 SDK, many delegate protocols were changed from informal protocols to formal protocols with optional methods. You can read a bit more about the details and differences here: <http://developer.apple.com/library/ios/#DOCUMENTATION/General/Conceptual/DevPedia-CocoaCore/Protocol.html>
Essentially, what you need to do to eliminate this warning is change the definition of your AppController class from something like:
@interface AppController : NSObject
to:
@interface AppController : NSObject <NSSpeechSynthesizerDelegate>
so that when you call [speechSynth setDelegate:self] in the AppController, you're passing it an object as the delegate that you have declared as implementing/following the NSSpeechSynthesizerDelegate protocol.
ALSO
On Page 106
the following line
[tableView selectRow:defaultRow byExtendingSelection:NO];
The compile yields the following message
warning: 'selectRow:byExtendingSelection:' is deprecated (declared at /Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSTableView.h:655)
This one is also easy to eliminate. In the documentation for -[NSTableView selectRow:byExtendingSelection:], they recommend using -[NSTableView selectRowIndexes:byExtendingSelection:] instead. You just have to pass in an NSIndexSet with your row index instead as the first argument:
[tableView selectRowIndexes:[NSIndexSet indexSetWithIndex:defaultRow] byExtendingSelection:NO];
Since these are warnings the program compiles and runs.
The defaultVoice 'Alex' is selected in the Voice Table.
The text in the textField is spoken correctly
I can select a new voice like 'agnes'
But the voice does not change.
I assume the warnings need to be dealt with to be able to change the voice.
Neither of these warnings would likely cause the problem you are seeing, so I doubt eliminating them will eliminate the problem (voice does not change).
A more likely cause is that you haven't implemented (at all or correctly) the delegate method for your table view in AppController:
- (void)tableViewSelectionDidChange:(NSNotification *)aNotification
Or you failed to connect the delegate outlet of your table view in Interface Builder to your AppController object. If the delegate method is implemented, you can set a breakpoint inside the method or add NSLog statements to determine if it is being called when the selection in your table changes.
Amanda Rains
email@hidden
This message was generated on my Mac.
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