Objective-C help. I don't know where else to go. :P

Scripting Forums AppleScriptObjC and Xcode
#1

What did I do wrong? It keeps logging (null) but I keep looking for different ways. I did start out with one 2 lines, I was thinking that it was insufficient data.

-(void)readbutton:(id)sender { NSString *filepath = [[NSString alloc] initWithString:@"/Users/dylanweber/Documents/file.txt"]; NSBundle *filepathdata = [[NSBundle alloc] initWithPath]; NSString *filesContent = [[NSString alloc] initWithContentsOfFile:filepathdata]; NSLog(@"%@", filesContent); [textfield setStringValue:filesContent]; }

#2

Cut out the NSBundle line; the file isn’t in your app’s bundle.

And initWithContentsOfFile: is an incomplete method; you need initWithContentsOfFile:encoding:error: or initWithContentsOfFile:usedEncoding:error:.

But this isn’t really the right place. You might like to subscribe to Apple’s cocoa-dev list or omnigroup’s macosx-dev list, although both are high-volume/low-tolerance.

#3

- (void)readbutton:(id)sender { NSString *filepath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/file.txt"]; NSString *filesContent = [NSString stringWithContentsOfFile:filepath encoding:NSUTF8StringEncoding error:nil]; NSLog(@"%@", filesContent); [textfield setStringValue:(filesContent) ? filesContent : @""]; }
change the encoding (to NSASCIIStringEncoding, NSMacOSRomanStringEncoding, NSISOLatin1StringEncoding, NSUnicodeStringEncoding) if it’s not UTF8

Why not? Actually you can’t write AppleScriptObjC code without basic knowledge of Objective-C

#4

I’m happy to be corrected; I’d assumed it was a place for what it says, AppleScriptObjC.

You can’t write much, but you can write some, courtesy of Cocoa bindings.

I could be wrong – I thought the OP was after some straight Objective-C advice, and nothing to do with AppleScriptObjC. However, if he is looking at it with AppleScriptObjC in mind, he can’t use Foundation functions like NSHomeDirectory().

#5

I want to set the string value of a multi-line text field to this string, but it apparently can’t read UTF-8. What encoding should I then use? I looked in Apple’s Developer Documentation, but that didn’t say what encoding.

P.S. I want to learn Objective-C so badly, but when I can’t find something in the documentation, I’m stuck. Google barley helps.

#6

And it does log the string correctly.

#7

The encoding depends on the platform and the application the file was created with.
Above I wrote the alternative encodings. If the file was created on a Mac, try NSMacOSRomanStringEncoding

#8

The file is UTF-8, but I can’t set the string value of a text field to the file’s contents. I made it with TextEdit and saved it when I selected “Unicode (UTF-8).” It’s not MacRoman or NSUnicodeStringEncoding. I tried.

#9

If it’s UTF8, NSUTF8StringEncoding should work

#10

I got it! For some weird reason, all of the Cocoa bindings got destroyed because a character in my header file got deleted, but the buttons still worked. :confused: Strange.

Either way, it’s working. But, what is the method of setting the string value of a NSTextView?

#11

[code]IBOutlet NSTextView *view;
NSString *string = @“Hello”;

[[view textStorage] setStringValue:string];[/code]

#12 
[[view textStorage] setStringValue:string];

I’ve been playing with that. It hasn’t been working. I’m going to try “setString:”