How to encrypt a String to a SHA-1 Encrypted in iPhone
Hi,
In order to get this I found following code, but I need to import some
frameworks into my code. Could somebody kindly point how can achieve SHA-1
Encrypted string in iPhone. I get few errors compiling since I do not have
necessary framework to use this.. :(
+(NSString *)stringToSha1:(NSString *)str{
// data to Hash
NSMutableData *dataToHash = [str
dataUsingEncoding:NSUTF8StringEncoding];
unsigned char hashBytes[CC_SHA1_DIGEST_LENGTH];
CC_SHA1([dataToHash bytes], [dataToHash length], hashBytes);
NSData *encodedData = [NSData dataWithBytes:hashBytes
length:CC_SHA1_DIGEST_LENGTH];
[dataToHash release];
NSString *encodedStr = [NSString stringWithUTF8String:[encodedData
bytes]];
//NSString *encodedStr = [[NSString alloc] initWithBytes:[encodedData
bytes]
//
length:[encodedData length] encoding: NSUTF8StringEncoding];
NSLog(@"ENCODED SHA-1: %@", encodedStr);
return encodedStr;
}
Thank you,
Tharindu.
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Re: Video player dead?
Hmmm... Okay, so I unchecked the iTunes U and sync'd. Video player comes up and says there's nothing to watch. Now, rechecking and re syncing. Question is, how could it have gotten blown? Oh well... Andrew On Nov 26, 2010, at 11:56 PM, Andrew McLaughlin wrote: > Hey list, > > I just updated to 4.2.1 on my iPad 3G after have been on 4.2 gm and 4.2b gm. > At this point, my video player no longer plays. When I start it, all I get is > a black screen. Anybody else getting this now? > > I hooked up to Xcode and opened the Organizer. Looking at the Console panel, > I see the following series of errors reported when I load the app: > > Fri Nov 26 23:54:35 iPad-3G com.apple.mediaserverd[18] : vxdDec > - Frame# 1, DecodeFrame failed with error: 6 > > ... > > Fri Nov 26 23:54:35 iPad-3G com.apple.mediaserverd[18] : vxdDec > - Frame# 201, DecodeFrame failed with error: 6 > > So, sounds like I have a corrupted video? Too bad, these are all iTunes U > stuff... :P > > Anybody seen this? > > Andrew > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/pik0%40me.com > > This email sent to p...@me.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to encrypt a String to a SHA-1 Encrypted in iPhone
Hi,
It was just I need to add header. But above code
didn't work. But following encoded to SHA-1 correctly..
I would like to know whether it encodes right ? or Not ?
+(NSString *)stringToSha1:(NSString *)hashkey{
// Using UTF8Encoding
const char *s = [hashkey cStringUsingEncoding:NSUTF8StringEncoding];
NSData *keyData = [NSData dataWithBytes:s length:strlen(s)];
// This is the destination
uint8_t digest[CC_SHA1_DIGEST_LENGTH] = {0};
// This one function does an unkeyed SHA1 hash of your hash data
CC_SHA1(keyData.bytes, keyData.length, digest);
// Now convert to NSData structure to make it usable again
NSData *out = [NSData dataWithBytes:digest
length:CC_SHA1_DIGEST_LENGTH];
// description converts to hex but puts <> around it and spaces every 4
bytes
NSString *hash = [out description];
hash = [hash stringByReplacingOccurrencesOfString:@" " withString:@""];
hash = [hash stringByReplacingOccurrencesOfString:@"<" withString:@""];
hash = [hash stringByReplacingOccurrencesOfString:@">" withString:@""];
// hash is now a string with just the 40char hash value in it
return hash;
}
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iOS - Help with nasty memory leak
Hi,
I have implemented a dragable annotation in my app. I am getting a 100% memory
leak that has me puzzled. I was hoping that someone can provide some guidance.
The leak is at:
MKAnnotationView *draggablePinView = [[[AnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:@"PinIdentifier"] autorelease];
Here is the entire method:
- (MKAnnotationView *)mapView:(MKMapView *)MapView viewForAnnotation:(id
)annotation
{
MKAnnotationView *draggablePinView = [[[AnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:@"PinIdentifier"] autorelease];
if (draggablePinView) {
draggablePinView.annotation = annotation;
} else {
if ([draggablePinView isKindOfClass:[AnnotationView class]]) {
((AnnotationView *)draggablePinView).mapView = MapView;
}
}
((MKPinAnnotationView *)draggablePinView).pinColor =
MKPinAnnotationColorGreen;
((MKPinAnnotationView *)draggablePinView).animatesDrop = YES;
return draggablePinView;
}
The analizer says the leak is AnnotationView. So I can't see anything in
AnnotationView that would cause the leak:
#import "AnnotationView.h"
#import "CurrentLocationAnnotation.h"
@implementation AnnotationView
@synthesize hasBuiltInDraggingSupport;
@synthesize mapView;
- (void)dealloc {
[super dealloc];
}
- (id)initWithAnnotation:(id )annotation
reuseIdentifier:(NSString *)reuseIdentifier {
self.hasBuiltInDraggingSupport = [[MKPinAnnotationView class]
instancesRespondToSelector:NSSelectorFromString(@"isDraggable")];
if (self.hasBuiltInDraggingSupport) {
if ((self = [[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:reuseIdentifier])) {
[self
performSelector:NSSelectorFromString(@"setDraggable:") withObject:[NSNumber
numberWithBool:YES]];
}
}
self.rightCalloutAccessoryView = [UIButton
buttonWithType:UIButtonTypeDetailDisclosure];
self.canShowCallout = YES;
UIImage *image = [UIImage imageNamed:@"gps_add.png"];
UIImageView *imgView = [[[UIImageView alloc] initWithImage:image]
autorelease];
self.leftCalloutAccessoryView = imgView;
self.image = image;
return self;
}
@end
Thanks for any help and guidance.
Phil___
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OutlineView with big text editor
Hi, I have set a custom cell showing icon + text on my outlineView column. It works well, but whenever I double click on the row to edit the text, I get a text field editor bigger than the cell itself and covering the left icon. How can I make this text field editor fit the cell bounds and not covering the left icon? Thanks Leo ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTask with unzip
On 2010-11-26, at 7:33 AM, gMail.com wrote:
> Hi, I can properly unzip a zip file launching a NSTask with /usr/bin/unzip
> The task saves the unzipped file to the disk, then a I read the unzipped
> file in a NSData. Well. My question is:
> Can I do the same job without saving the unzipped file to the disk?
>
> I have tried to set the standard output to a pipe - which works well with
> other tasks - but here it doesn't work. The task never exits. Here's the
> wrong code:
>
> NSTask *unzip = [[[NSTask alloc] init] autorelease];
> [unzip setLaunchPath:@"/usr/bin/unzip"];
> [unzip setArguments:[NSArray arrayWithObjects:@"-p", zipfile,
> @"filetounzip", nil]];
>
> NSPipe *aPipe = [NSPipe pipe];
> [unzip setStandardOutput:aPipe];
> [unzip launch];
> [unzip waitUntilExit];
>
> if([unzip terminationStatus] == noErr){
> dictData = [NSMutableData data];
> while((dataOut = [aPipe availableData]) && [dataOut length]){
> [dictData appendData:dataOut];
> }
> }
If I recall correctly, the problem is likely to be your use of
-waitUntilExit. That API should apparently have a large red label on it
("Warnin', lark's vomit!") since everybody wants to use it this way. The
problem is that the task's output pipe fills up because it isn't being
serviced, and then things get locked up. You need to go with asynchronous
reads to service the pipe as output gets stuffed into it. There should be lots
of examples of this on this list, now that you know what to look for.
What would be great would be a new call, along the lines of
-dataFromWaitingUntilExit or some such, that does all this for you, since this
is so commonly what people want to do.
Ben Haller
McGill University
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Re: respondsToSelector & "warning: may not respond"
Thanks all, I ended up changing around my object hierarchy and casting to a superclass that has ordinals. Mikkel On Nov 26, 2010, at 10:38 PM, Julien Jalon wrote: > Z) ignore the warning > > On Fri, Nov 26, 2010 at 9:44 PM, Ken Thomases wrote: > On Nov 26, 2010, at 12:27 PM, Mike Abdullah wrote: > > > C) Typecast the object to a class that is known to implement -setOrdinal: > > D) Typecast the object to id. > > Regards, > Ken > > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/jjalon%40gmail.com > > This email sent to jja...@gmail.com > smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Core data binding "first" of to-many relationship
Hi I have an NSArrayController that holds a set of persons. These persons have a to-many relationship of name objects. Usually they will only have one name, but there may be multiple (or even no name). In my interface, I have an NSTableView that will display the persons. The attributes are easy enough (gender, etc), but how can I bind the names to a column so only one name is shown for a person? If I just bind to my person-array controller with the names keypath, obviously I get the description of an array in the cell, which isn't very pretty. Seems I could do it with a custom NSValueTransformer but there is probably a better way? Mikkel smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTask with unzip
The way I get around this is to use an NSFileHandle for standard out instead of
an NSPipe. It's a bit less efficient, but slightly more convenient.
Dave
Sent from my iPhone
On Nov 27, 2010, at 7:59 AM, Ben Haller wrote:
> On 2010-11-26, at 7:33 AM, gMail.com wrote:
>
>> Hi, I can properly unzip a zip file launching a NSTask with /usr/bin/unzip
>> The task saves the unzipped file to the disk, then a I read the unzipped
>> file in a NSData. Well. My question is:
>> Can I do the same job without saving the unzipped file to the disk?
>>
>> I have tried to set the standard output to a pipe - which works well with
>> other tasks - but here it doesn't work. The task never exits. Here's the
>> wrong code:
>>
>> NSTask *unzip = [[[NSTask alloc] init] autorelease];
>> [unzip setLaunchPath:@"/usr/bin/unzip"];
>> [unzip setArguments:[NSArray arrayWithObjects:@"-p", zipfile,
>> @"filetounzip", nil]];
>>
>> NSPipe *aPipe = [NSPipe pipe];
>> [unzip setStandardOutput:aPipe];
>> [unzip launch];
>> [unzip waitUntilExit];
>>
>> if([unzip terminationStatus] == noErr){
>>dictData = [NSMutableData data];
>>while((dataOut = [aPipe availableData]) && [dataOut length]){
>>[dictData appendData:dataOut];
>>}
>> }
>
> If I recall correctly, the problem is likely to be your use of
> -waitUntilExit. That API should apparently have a large red label on it
> ("Warnin', lark's vomit!") since everybody wants to use it this way. The
> problem is that the task's output pipe fills up because it isn't being
> serviced, and then things get locked up. You need to go with asynchronous
> reads to service the pipe as output gets stuffed into it. There should be
> lots of examples of this on this list, now that you know what to look for.
>
> What would be great would be a new call, along the lines of
> -dataFromWaitingUntilExit or some such, that does all this for you, since
> this is so commonly what people want to do.
>
> Ben Haller
> McGill University
>
> ___
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Re: iOS - Help with nasty memory leak
On 27 nov 2010, at 06.33, Philip Vallone wrote:
> if ((self = [[MKPinAnnotationView alloc]
> initWithAnnotation:annotation reuseIdentifier:reuseIdentifier])) {
> [self
> performSelector:NSSelectorFromString(@"setDraggable:") withObject:[NSNumber
> numberWithBool:YES]];
> }
You're replacing the current instance with a new instance here. Is that
intended? While not illegal, it is really unusual to do that.
If that's intended, you also would have to release the old instance before
replacing it with the new instance (that's the leak). If that was not intended,
you probably should be calling [super initWithAnnotation:annotation
reuseIdentifier:reuseIdentifier], and in any case, you need to make sure that
you *always* call through to the designated initializer of your superclass
somewhere in your init method.
Finally, why are you calling a method using "-performSelector:withObject:"
here? That seems like a trick to "fix" a compiler warning? If so, you should
think about why the compiler were warning you about that call, and fix it
properly - by adding the required #import statement, by adding the missing
method declaration to the header, or - if all else fails - by casting the
receiver to the appropriate type.
j o a r
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Re: NSTask with unzip
Here's a post that I found useful:
http://dev.notoptimal.net/2007/04/nstasks-nspipes-and-deadlocks-when.html
Dave, not sure what you mean here. NSPipe uses NSFileHandle. Does using an
NSFileHandle directly change things somehow? If so, why? I think this is an
avenue I haven't explored; once I (finally) figured out the right magic
incantations to get things to work reliably with NSPipe, I now recycle that
code everywhere I need an NSTask :->.
Ben Haller
McGill University
On 2010-11-27, at 11:48 AM, Dave DeLong wrote:
> The way I get around this is to use an NSFileHandle for standard out instead
> of an NSPipe. It's a bit less efficient, but slightly more convenient.
>
> Dave
>
> Sent from my iPhone
>
> On Nov 27, 2010, at 7:59 AM, Ben Haller wrote:
>
>> On 2010-11-26, at 7:33 AM, gMail.com wrote:
>>
>>> Hi, I can properly unzip a zip file launching a NSTask with /usr/bin/unzip
>>> The task saves the unzipped file to the disk, then a I read the unzipped
>>> file in a NSData. Well. My question is:
>>> Can I do the same job without saving the unzipped file to the disk?
>>>
>>> I have tried to set the standard output to a pipe - which works well with
>>> other tasks - but here it doesn't work. The task never exits. Here's the
>>> wrong code:
>>>
>>> NSTask *unzip = [[[NSTask alloc] init] autorelease];
>>> [unzip setLaunchPath:@"/usr/bin/unzip"];
>>> [unzip setArguments:[NSArray arrayWithObjects:@"-p", zipfile,
>>> @"filetounzip", nil]];
>>>
>>> NSPipe *aPipe = [NSPipe pipe];
>>> [unzip setStandardOutput:aPipe];
>>> [unzip launch];
>>> [unzip waitUntilExit];
>>>
>>> if([unzip terminationStatus] == noErr){
>>> dictData = [NSMutableData data];
>>> while((dataOut = [aPipe availableData]) && [dataOut length]){
>>> [dictData appendData:dataOut];
>>> }
>>> }
>>
>> If I recall correctly, the problem is likely to be your use of
>> -waitUntilExit. That API should apparently have a large red label on it
>> ("Warnin', lark's vomit!") since everybody wants to use it this way. The
>> problem is that the task's output pipe fills up because it isn't being
>> serviced, and then things get locked up. You need to go with asynchronous
>> reads to service the pipe as output gets stuffed into it. There should be
>> lots of examples of this on this list, now that you know what to look for.
>>
>> What would be great would be a new call, along the lines of
>> -dataFromWaitingUntilExit or some such, that does all this for you, since
>> this is so commonly what people want to do.
>>
>> Ben Haller
>> McGill University
>>
>> ___
>>
>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>>
>> Please do not post admin requests or moderator comments to the list.
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>>
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>>
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Re: NSTask with unzip
On Nov 27, 2010, at 10:12 AM, Ben Haller wrote: > > NSPipe uses NSFileHandle. Does using an NSFileHandle directly change things > somehow? If so, why? NSPipe uses pipes, which act sort of like files, except for that buffering thing, enough so that they can be accessed through the same interface as files. But using NSFileHandle directly, you can use actual files, which in essence use the disk as the "buffer"... -- Scott Ribe scott_r...@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 voice ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: respondsToSelector & "warning: may not respond"
On Nov 26, 2010, at 6:22 PM, Dave Zwerdling wrote: > You can implement other methods and do a single cast to NSObject > * (or id if you don't need the NSObject > methods) It is often impossible to get away from needing at least some of NSObject's functionality, but fortunately you can declare that your protocol inherits from another, and there is also an NSObject protocol that defines the core functionality of the class, so you can do this when you declare your protocol and never need to worry about "NSObject" @protocol SomeProtocol : NSObject // stuff @end -- David Duncan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: respondsToSelector & "warning: may not respond"
On Nov 27, 2010, at 12:35 PM, David Duncan wrote: > fortunately you can declare that your protocol inherits from another, and > there is also an NSObject protocol that defines the core functionality of the > class, so you can do this when you declare your protocol and never need to > worry about "NSObject" > > @protocol SomeProtocol : NSObject > // stuff AFAIK protocols don't inherit from each other but rather conform to each other, meaning the above should be @protocol SomeProtocol But maybe I'm just unaware of new syntax in the latest compiler? --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: respondsToSelector & "warning: may not respond"
On Nov 27, 2010, at 9:46 AM, Andy Lee wrote: > AFAIK protocols don't inherit from each other but rather conform to each > other, meaning the above should be > > @protocol SomeProtocol > > But maybe I'm just unaware of new syntax in the latest compiler? No, your probably right. Dangers of typing code into Mail instead of a compiler :). -- David Duncan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTask with unzip
What Scott said. I use NSFileManager to create a file in NSTemporaryDirectory(), then point an NSFileHandle to that file for writing. That NSFileHandle becomes the standard out of the task, and all the output of the task is written to the file, which I can then peruse and reuse later at my convenience. Dave On Nov 27, 2010, at 9:12 AM, Ben Haller wrote: > Dave, not sure what you mean here. NSPipe uses NSFileHandle. Does using an > NSFileHandle directly change things somehow? If so, why? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: respondsToSelector & "warning: may not respond"
Or I believe you can also do id< NSObject, MyProtocol > if you need something that conforms to both. Unless you actually need something that is only implemented in the NSObject class and not defined in the protocol. On Sat, Nov 27, 2010 at 11:35 AM, David Duncan wrote: > On Nov 26, 2010, at 6:22 PM, Dave Zwerdling wrote: > >> You can implement other methods and do a single cast to NSObject >> * (or id if you don't need the NSObject >> methods) > > > It is often impossible to get away from needing at least some of NSObject's > functionality, but fortunately you can declare that your protocol inherits > from another, and there is also an NSObject protocol that defines the core > functionality of the class, so you can do this when you declare your protocol > and never need to worry about "NSObject" > > @protocol SomeProtocol : NSObject > // stuff > @end > -- > David Duncan > > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/stephen.butler%40gmail.com > > This email sent to stephen.but...@gmail.com > ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTask with unzip
How do you create the NSFileHandle ?
I succeeded only creating it as
NSFileHandle*theFileH = [NSFileHandle
fileHandleForWritingAtPath:tempFilePath];
and the file tempFilePath must exists.
But as I said, I would like to get rid of the temp file.
--
Leo
> Da: Dave DeLong
> Data: Sat, 27 Nov 2010 08:48:34 -0800
> A: Ben Haller
> Cc: "gMail.com" , Cocoa List
>
> Oggetto: Re: NSTask with unzip
>
> The way I get around this is to use an NSFileHandle for standard out instead
> of an NSPipe. It's a bit less efficient, but slightly more convenient.
>
> Dave
>
> Sent from my iPhone
>
> On Nov 27, 2010, at 7:59 AM, Ben Haller wrote:
>
>> On 2010-11-26, at 7:33 AM, gMail.com wrote:
>>
>>> Hi, I can properly unzip a zip file launching a NSTask with /usr/bin/unzip
>>> The task saves the unzipped file to the disk, then a I read the unzipped
>>> file in a NSData. Well. My question is:
>>> Can I do the same job without saving the unzipped file to the disk?
>>>
>>> I have tried to set the standard output to a pipe - which works well with
>>> other tasks - but here it doesn't work. The task never exits. Here's the
>>> wrong code:
>>>
>>> NSTask *unzip = [[[NSTask alloc] init] autorelease];
>>> [unzip setLaunchPath:@"/usr/bin/unzip"];
>>> [unzip setArguments:[NSArray arrayWithObjects:@"-p", zipfile,
>>> @"filetounzip", nil]];
>>>
>>> NSPipe *aPipe = [NSPipe pipe];
>>> [unzip setStandardOutput:aPipe];
>>> [unzip launch];
>>> [unzip waitUntilExit];
>>>
>>> if([unzip terminationStatus] == noErr){
>>>dictData = [NSMutableData data];
>>>while((dataOut = [aPipe availableData]) && [dataOut length]){
>>>[dictData appendData:dataOut];
>>>}
>>> }
>>
>> If I recall correctly, the problem is likely to be your use of
>> -waitUntilExit. That API should apparently have a large red label on it
>> ("Warnin', lark's vomit!") since everybody wants to use it this way. The
>> problem is that the task's output pipe fills up because it isn't being
>> serviced, and then things get locked up. You need to go with asynchronous
>> reads to service the pipe as output gets stuffed into it. There should be
>> lots of examples of this on this list, now that you know what to look for.
>>
>> What would be great would be a new call, along the lines of
>> -dataFromWaitingUntilExit or some such, that does all this for you, since
>> this is so commonly what people want to do.
>>
>> Ben Haller
>> McGill University
>>
>> ___
>>
>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>>
>> Please do not post admin requests or moderator comments to the list.
>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>>
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>>
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Re: NSTask with unzip
Something along the lines of:
NSString * tempFilePath = [NSTemporaryDirectory()
stringByAppendingPathComponent:@"myTempFile.tmp"];
if (![[NSFileManager defaultManager] fileExistsAtPath:tempFilePath]) {
[[NSFileManager defaultManager] createFileAtPath:tempFilePath contents:nil
attributes:nil];
}
NSFileHandle * outHandle = [NSFileHandle
fileHandleForWritingAtPath:tempFilePath];
[myTask setStandardOutput:outHandle];
NSString * output = [NSString stringWithContentsOfFile:tempFilePath
encoding:NSUTF8StringEncoding error:nil];
[[NSFileManager defaultManager] removeItemAtPath:tempFilePath error:nil];
(typed in Mail.app. YMMV)
Dave
On Nov 27, 2010, at 10:29 AM, gMail.com wrote:
> How do you create the NSFileHandle ?
> I succeeded only creating it as
> NSFileHandle*theFileH = [NSFileHandle
> fileHandleForWritingAtPath:tempFilePath];
> and the file tempFilePath must exists.
>
> But as I said, I would like to get rid of the temp file.
>
> --
> Leo
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Re: iOS - Help with nasty memory leak
Thank you,
My viewForAnnotation was all wrong. I was trying code from this tutorial:
http://trentkocurek.wordpress.com/2010/07/21/ios4-map-kit-draggable-annotation-views/
So, I went back and redid my code, which fixed the memory leak and alleviated
the need for a custom Annotation View.
- (MKAnnotationView *)mapView:(MKMapView *)MapView viewForAnnotation:(id
)annotation
{
MKPinAnnotationView *pin = (MKPinAnnotationView *) [self.mapView
dequeueReusableAnnotationViewWithIdentifier: @"PinIdentifier"];
if (pin == nil) {
pin = [[[MKPinAnnotationView alloc] initWithAnnotation:
annotation reuseIdentifier: @"PinIdentifier"] autorelease];
}else {
pin.annotation = annotation;
}
pin.pinColor = MKPinAnnotationColorGreen;
pin.animatesDrop = YES;
pin.draggable = YES;
pin.canShowCallout = YES;
pin.rightCalloutAccessoryView = [UIButton
buttonWithType:UIButtonTypeDetailDisclosure];
UIImage *image = [UIImage imageNamed:@"gps_add.png"];
UIImageView *imgView = [[[UIImageView alloc]
initWithImage:image] autorelease];
pin.leftCalloutAccessoryView = imgView;
return pin;
}
Thanks a bunch,
Phil
On Nov 27, 2010, at 11:50 AM, Joar Wingfors wrote:
>
> On 27 nov 2010, at 06.33, Philip Vallone wrote:
>
>> if ((self = [[MKPinAnnotationView alloc]
>> initWithAnnotation:annotation reuseIdentifier:reuseIdentifier])) {
>> [self
>> performSelector:NSSelectorFromString(@"setDraggable:") withObject:[NSNumber
>> numberWithBool:YES]];
>> }
>
>
> You're replacing the current instance with a new instance here. Is that
> intended? While not illegal, it is really unusual to do that.
>
> If that's intended, you also would have to release the old instance before
> replacing it with the new instance (that's the leak). If that was not
> intended, you probably should be calling [super initWithAnnotation:annotation
> reuseIdentifier:reuseIdentifier], and in any case, you need to make sure that
> you *always* call through to the designated initializer of your superclass
> somewhere in your init method.
>
> Finally, why are you calling a method using "-performSelector:withObject:"
> here? That seems like a trick to "fix" a compiler warning? If so, you should
> think about why the compiler were warning you about that call, and fix it
> properly - by adding the required #import statement, by adding the missing
> method declaration to the header, or - if all else fails - by casting the
> receiver to the appropriate type.
>
>
> j o a r
>
>
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Re: NSTask with unzip
Ben, thank you so much! I have successfully done it.
I post the code here for anyone to use it. I love this list.
- (NSData*)UnzipFile:(NSString*)sourcePath
extractFileName:(NSString*)extractFileName
{
NSTask*unzip = [[[NSTask alloc] init] autorelease];
NSPipe*aPipe = [NSPipe pipe];
[unzip setStandardOutput:aPipe];
[unzip setLaunchPath:@"/usr/bin/unzip"];
[unzip setArguments:[NSArray arrayWithObjects:@"-p", sourcePath,
extractFileName, nil]];
[unzip launch];
NSMutableData*dataOut = [NSMutableData data];
NSData*dataIn = nil;
NSException*error = nil;
while((dataIn = [[aPipe fileHandleForReading]
availableDataOrError:&error]) && [dataIn length] && error == nil){
[dataOut appendData:dataIn];
}
if([dataOut length] && error == nil){
return dataOut;
}
return nil;
}
// Then I subclassed NSFileHandler this way
@implementation NSFileHandle (MyOwnAdditions)
- (NSData*)availableDataOrError:(NSException**)returnError
{
for(;;){
@try{
return [self availableData];
}...@catch (NSException *e) {
if ([[e name] isEqualToString:NSFileHandleOperationException]) {
if ([[e reason] isEqualToString:@"*** -[NSConcreteFileHandle
availableData]: Interrupted system call"]) {
continue;
}
if (returnError)
*returnError = e;
return nil;
}
@throw;
}
}
}
@end
> Da: Ben Haller
> Data: Sat, 27 Nov 2010 12:12:39 -0500
> A: Dave DeLong
> Cc: "gMail.com" , Cocoa List
>
> Oggetto: Re: NSTask with unzip
>
> Here's a post that I found useful:
>
> http://dev.notoptimal.net/2007/04/nstasks-nspipes-and-deadlocks-when.html
>
> Dave, not sure what you mean here. NSPipe uses NSFileHandle. Does using an
> NSFileHandle directly change things somehow? If so, why? I think this is an
> avenue I haven't explored; once I (finally) figured out the right magic
> incantations to get things to work reliably with NSPipe, I now recycle that
> code everywhere I need an NSTask :->.
>
> Ben Haller
> McGill University
>
>
> On 2010-11-27, at 11:48 AM, Dave DeLong wrote:
>
>> The way I get around this is to use an NSFileHandle for standard out instead
>> of an NSPipe. It's a bit less efficient, but slightly more convenient.
>>
>> Dave
>>
>> Sent from my iPhone
>>
>> On Nov 27, 2010, at 7:59 AM, Ben Haller wrote:
>>
>>> On 2010-11-26, at 7:33 AM, gMail.com wrote:
>>>
Hi, I can properly unzip a zip file launching a NSTask with /usr/bin/unzip
The task saves the unzipped file to the disk, then a I read the unzipped
file in a NSData. Well. My question is:
Can I do the same job without saving the unzipped file to the disk?
I have tried to set the standard output to a pipe - which works well with
other tasks - but here it doesn't work. The task never exits. Here's the
wrong code:
NSTask *unzip = [[[NSTask alloc] init] autorelease];
[unzip setLaunchPath:@"/usr/bin/unzip"];
[unzip setArguments:[NSArray arrayWithObjects:@"-p", zipfile,
@"filetounzip", nil]];
NSPipe *aPipe = [NSPipe pipe];
[unzip setStandardOutput:aPipe];
[unzip launch];
[unzip waitUntilExit];
if([unzip terminationStatus] == noErr){
dictData = [NSMutableData data];
while((dataOut = [aPipe availableData]) && [dataOut length]){
[dictData appendData:dataOut];
}
}
>>>
>>> If I recall correctly, the problem is likely to be your use of
>>> -waitUntilExit. That API should apparently have a large red label on it
>>> ("Warnin', lark's vomit!") since everybody wants to use it this way. The
>>> problem is that the task's output pipe fills up because it isn't being
>>> serviced, and then things get locked up. You need to go with asynchronous
>>> reads to service the pipe as output gets stuffed into it. There should be
>>> lots of examples of this on this list, now that you know what to look for.
>>>
>>> What would be great would be a new call, along the lines of
>>> -dataFromWaitingUntilExit or some such, that does all this for you, since
>>> this is so commonly what people want to do.
>>>
>>> Ben Haller
>>> McGill University
>>>
>>> ___
>>>
>>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>>>
>>> Please do not post admin requests or moderator comments to the list.
>>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>>>
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>>>
>>> This email sent to davedel...@me.com
>
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Icon Designer?
Hi all, Can anyone recommend a good icon designer/illustrator? I have a good illustration designed for the splash screen of my app, but need help getting an icon built. My illustrator doesn't know how to do that, and I'm all thumbs when it comes to artwork. TiA Andrew ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
CG: linking two views at different zoom levels
I have two views: one displays an image created with CG calls, and in the second one I would like to show a zoomed in version of the same image, centered around where the user has tapped. I am using UIGestureRecognizerDelegate to get the pan gesture, and draw into the second view with the new zoom level. And this works. What I don't know how to do is to have the center of the second view coincide with the tap on the first view. Someone pointed me at code that does this for bit mapped CG contexts, but this is using vectors with a default context. Any pointers? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Icon Designer?
/ Developer / Applications / Utilities / Icon Composer On Nov 27, 2010, at 3:06 PM, Andrew McLaughlin wrote: Hi all, Can anyone recommend a good icon designer/illustrator? I have a good illustration designed for the splash screen of my app, but need help getting an icon built. My illustrator doesn't know how to do that, and I'm all thumbs when it comes to artwork. TiA Andrew ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/koko%40highrolls.net This email sent to k...@highrolls.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Icon Designer?
You can hit me up on Monday if you'd like, i develop and design all of the time and perhaps i can help you out. Sent from my iPad of doom. On Nov 27, 2010, at 5:06 PM, Andrew McLaughlin wrote: > Hi all, > > Can anyone recommend a good icon designer/illustrator? I have a good > illustration designed for the splash screen of my app, but need help getting > an icon built. My illustrator doesn't know how to do that, and I'm all thumbs > when it comes to artwork. > > TiA > Andrew > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/edolecki%40gmail.com > > This email sent to edole...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Core data binding "first" of to-many relationship
On 2010 Nov 27, at 08:20, Mikkel Eide Eriksen wrote: > I have an NSArrayController that holds a set of persons. These persons have a > to-many relationship of name objects. Usually they will only have one name, > but there may be multiple (or even no name). > > In my interface, I have an NSTableView that will display the persons. The > attributes are easy enough (gender, etc), but how can I bind the names to a > column so only one name is shown for a person? Good old-fashioned code to the rescue. Implement a method in your Person class which returns such a name, and bind the table column to it. I think that as long as the column is not editable, you will not need a setter. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Core data binding "first" of to-many relationship
On Nov 27, 2010, at 17:44, Jerry Krinock wrote: >> I have an NSArrayController that holds a set of persons. These persons have >> a to-many relationship of name objects. Usually they will only have one >> name, but there may be multiple (or even no name). >> >> In my interface, I have an NSTableView that will display the persons. The >> attributes are easy enough (gender, etc), but how can I bind the names to a >> column so only one name is shown for a person? > > Good old-fashioned code to the rescue. Implement a method in your Person > class which returns such a name, and bind the table column to it. I think > that as long as the column is not editable, you will not need a setter. Additionally, in your Person class, implement keyPathsForValuesAffectingValueForKey: so that when the 'names' relationship changes, your 'primaryName' key does too. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Organize a file
...and now it comes the hardest part of my app. I have to decide about the structure of my document file so I ask here to get some hint. A) My app should download the doc file from internet and show its content. B) The file always contains a dict.plist NSDictionary. C) The file could contains some images.jpg or png, or tiff... D) The file could contain a QT movie I have to play in streaming. Hypotheses. 1) Save the doc file as filePackage and put the dict.plist, all the image files, and the movie file within the package. At runtime my app should then download, one by one, all the files from the filePackage (which now on the server looks like a folder - not so safe). This solution lets me easily make the streaming from the movie file. 2) Save the doc to one unique file (I would prefer this solution). If so, in case the doc contains a movie file, I need to know how to point to the movie data and begin the streaming. I have already a class which downloads files, even with an offset from the beginning of the file. Questions: Do I need CoreData? Can I use the old "Handle and Addresses" method to create the doc file? I mean, I put at the beginning of the file a "fixed size header" containing the addresses of the images block and the movie block, then firstly I download the header only, then I can download the image files thanks to the offset... But, how to begin a (movie) streaming from an URL and an offset? Thanks Leonardo ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: OutlineView with big text editor
On 27.11.2010, at 15:43, gMail.com wrote:
> Hi, I have set a custom cell showing icon + text on my outlineView column.
> It works well, but whenever I double click on the row to edit the text, I
> get a text field editor bigger than the cell itself and covering the left
> icon. How can I make this text field editor fit the cell bounds and not
> covering the left icon?
Hi Leo
Your NSCell implementation should implement something like the following.
In 'editWithFrame:...' you have to account for your image size and adjust
the cell frame before calling super.
(Copied from a custom cell code, but typed in mail to give you the idea)
- (void)editWithFrame:(NSRect)r inView:(NSView *)controlView editor:(NSText
*)textObj
delegate:(id)anObject event:(NSEvent *)theEvent
{
// Adjust the cell frame to not cover the image
r.origin.x += imageWidth;
r.size.width -= imageWidth;
[super editWithFrame:r inView:controlView editor:textObj delegate:anObject
event:theEvent];
}
Patrick
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QTKit Exception
I keep getting an exception from QTKit when quickly moving through a playlist
of songs. Here is the console log and the portion of my code where the
exception is thrown. I am using garbage collection on Snow Leopard.
2010-11-27 21:33:37.852 QTKitServer[15546:903] -[QTTrack_QuickTime
originalKeepInactiveFlag]: unrecognized selector sent to instance 0x119fd0
2010-11-27 21:33:37.853 QTKitServer[15546:903] *** Terminating app due to
uncaught exception 'NSInvalidArgumentException', reason: '-[QTTrack_QuickTime
originalKeepInactiveFlag]: unrecognized selector sent to instance 0x119fd0'
*** Call stack at first throw:
(
0 CoreFoundation 0x9011a6ba __raiseError + 410
1 libobjc.A.dylib 0x92ada509 objc_exception_throw
+ 56
2 CoreFoundation 0x9016790b -[NSObject(NSObject)
doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x900c0c36 ___forwarding___ +
950
4 CoreFoundation 0x900c0802
_CF_forwarding_prep_0 + 50
5 QTKit 0x949a4e08 -[QTMovie_QuickTime
initWithQuickTimeMovie:disposeWhenDone:delegate:attributes:error:forParent:] +
173
6 QTKit 0x949a386b -[QTMovie_QuickTime
initWithAttributes:error:forParent:] + 6159
7 QTKit 0x9495b0f0 -[QTMovie
initWithAttributes:error:] + 1012
8 QTKitServer 0x0001feb5
do_initWithAttributes + 202
9 QTKitServer 0xea53 _XinitWithAttributes
+ 220
10 QTKitServer 0x21bb QTKitServer_server +
113
11 QTKitServer 0x0001e194 mach_port_callback +
84
12 CoreFoundation 0x90088772 __CFMachPortPerform
+ 338
13 CoreFoundation 0x900844db __CFRunLoopRun + 6523
14 CoreFoundation 0x90082464 CFRunLoopRunSpecific
+ 452
15 CoreFoundation 0x900883a4 CFRunLoopRun + 84
16 QTKitServer 0x0001e702 main + 1068
17 QTKitServer 0x2141 start + 53
)
assertion failure on line 219 of
"/SourceCache/gdb/gdb-1472/src/gdb/macosx/macosx-nat-inferior-util.c" in
function "macosx_inferior_suspend_mach": macosx_task_valid (s->task)
warning: Got an error handling event: "assertion failure on line 219 of
"/SourceCache/gdb/gdb-1472/src/gdb/macosx/macosx-nat-inferior-util.c" in
function "macosx_inferior_suspend_mach": macosx_task_valid (s->task)
".
sharedlibrary apply-load-rules all
Error calling thread_get_state for GP registers for thread
0x5123lx11557^error,msg="error on line 169 of
\"/SourceCache/gdb/gdb-1472/src/gdb/macosx/i386-macosx-nat-exec.c\" in function
\"fetch_inferior_registers\": (ipc/send) invalid destination port
(0x1003)\n"
---
("song" is a QTMovie object)
if (self.isPlaying) {
[song stop];
[song setRate:0.0];
}
song = nil;
NSURL *url = [NSURL URLWithString:path];
NSError *err;
@try {
if ([QTMovie canInitWithFile:[url path]])
song = [QTMovie movieWithFile:[url path] error:&err];
if (err) {NSLog(@"quicktime can't init. bailing."); return;}
}
@catch (NSException * e) {
NSLog(@"quicktime exception %@", e);
}
@finally {
}
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How to approach to write such an app?
Hi All, Suppose I have an forum powered by Discuz. I want to write an iPhone application which is like a portal can access that forum, any forum operation like browsing, reply, change profile, make it favourite post etc can be done in that iPhone application as well. I just wonder how to approach that, say what documents I should read first, what knowledge or technology I should master to do it? My idea is to start with reading CFNetwork programming guide and stream programming guide for cocoa. Any advice is appreciated! -- == Life isn't about finding yourself. Life is about creating yourself. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Icon Designer?
Thanks. But I need help with the aesthetic perspective, not on the file building. Andrew On Nov 27, 2010, at 2:17 PM, k...@highrolls.net wrote: > / Developer / Applications / Utilities / Icon Composer > > > On Nov 27, 2010, at 3:06 PM, Andrew McLaughlin wrote: > >> Hi all, >> >> Can anyone recommend a good icon designer/illustrator? I have a good >> illustration designed for the splash screen of my app, but need help getting >> an icon built. My illustrator doesn't know how to do that, and I'm all >> thumbs when it comes to artwork. >> >> TiA >> Andrew >> ___ >> >> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/cocoa-dev/koko%40highrolls.net >> >> This email sent to k...@highrolls.net >> > ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
