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• Drag String data from My Cocoa App to Third-Party Cocoa App

  - by Woodster

  Hello, I want to drag a row from my tableview and drop it into any other NSTextField in Mac OS X 10.6, and have a string of text be dropped. Drag and drop already works within my app (between a NSTableView and an NSBrowser), but I have had no success putting any data on the pasteboard that can accepted by apps other than the source application. Here's the code I tried, which I thought would be enough to get hte word "hello" to be 'pasted' when I drop into some other NSTextField: -(BOOL) tableView:(NSTableView *)tableView writeRowsWithIndexes:(NSIndexSet *)rowIndexes toPasteboard:(NSPasteboard *)pboard { [pboard declareTypes:[NSArray arrayWithObject:NSStringPboardType] owner:self]; [pboard setString:@"hello" forType:NSStringPboardType]; return YES; } //-- I never get the cursor that shows me the drop will be accepted, and it just doesn't work. Things I've tried: Using the 10.5 version of the Pasteboard identifier, NSStringPBoardType Using the 10.6 version, NSPasteboardTypeString. Setting the owner = nil, since I'm not providing the data lazily. Using the keyed archiver: [pboard setData:[NSKeyedArchiver archivedRootObject:@"Hello!!"]] None of the above have worked. I think I have the concepts correct: "Encode data, tell the pasteboard what you've got, then give it the data", but since other apps don't recognize it, I suspect I'm not telling the pasteboard the correct datatype. Where am I going wrong? Thanks, Woody

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• RubyQT QGraphicsview scale images to fit window

  - by shadowskill

  I'm trying to make an image scale inside of a QGraphicsView and having zero success. I did find this C++ question with what seemed to be the same problem:http://stackoverflow.com/questions/2489754/qgraphicsview-scrolling-and-image-scaling-cropping I borrowed the approach of overriding the drawback/foreground. However when I run the script I'm greeted with a method_missing error: method_missing: undefined method drawPixmap for #<Qt::Painter:0x7ff11eb9b088> QPaintDevice: Cannot destroy paint device that is being painted What should I be doing to get the QGraphicsView to behave the way I want? class Imageview < Qt::GraphicsView attr_reader :pixmap def initialize(parent=nil) # @parent=parent super() @pixmap=pixmap Qt::MetaObject.connectSlotsByName(self) end def loadimage(pixmap) @pixmap=pixmap end def drawForeground(painter, rect) #size=event.size() #item= self.items()[0] #Qt::GraphicsPixmapItem.new #pixmap=@pixmap #painter=Qt::Painter.new [email protected](Qt::Size.new(rect.width,rect.height),Qt::KeepAspectRatio, Qt::SmoothTransformation) # painter.begin(self) painter.drawPixmap(rect,sized,Qt::Rect.new(0.0, 0.0, sized.width,sized.height)) #painter.end() # item.setPixmap(sized) #painter.end self.centerOn(1.0,1.0) #item.scale() # item.setTransformationMode(Qt::FastTransformation) # self.fitInView(item) end def updateSceneRect painter=Qt::Painter.new() drawForeground(painter,self.sceneRect) end end app=Qt::Application.new(ARGV) #grview=Imageview.new pic=Qt::Pixmap.new('pic') grview=Imageview.new() grview.loadimage(pic) scene=Qt::GraphicsScene.new #scene.addPixmap(pic) grview.setScene(scene) #grview.fitInView(scene) grview.renderHint=Qt::Painter::Antialiasing | Qt::Painter::SmoothPixmapTransform grview.backgroundBrush = Qt::Brush.new(Qt::Color.new(230, 200, 167)) grview.show app.exec

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• How to preserve the aspect ratio of video using AVAssetWriter

  - by Satoshi Nakajima

  I have a following code, which captures the video from the camera and stores it as a QuickMovie file using AVAssetWriter. It works fine, but the aspect ratio is not perfect because the width and height are hardcoded (480 x 320) in the outputSettings for AVAssetWriterInput. I'd rather find out the aspect ratio of the source video, and specify the appropriate height (480 x aspect ratio). Does anybody know how to do it? Should I defer the creation of AssetWriterInput until the first sampleBuffer? // set the sessionPreset to 'medium' self.captureSession = [[AVCaptureSession alloc] init]; self.captureSession.sessionPreset = AVCaptureSessionPresetMedium; ... // create AVCaptureVideoDataOutput self.captureVideo = [[AVCaptureVideoDataOutput alloc] init]; NSString* formatTypeKey = (NSString*)kCVPixelBufferPixelFormatTypeKey; self.captureVideo.videoSettings = @{ formatTypeKey:[NSNumber numberWithInt:kCVPixelFormatType_32BGRA] }; [self.captureVideo setSampleBufferDelegate:self queue:dispatch_get_main_queue()]; // create an AVAssetWriter NSError* error = nil; self.videoWriter = [[AVAssetWriter alloc] initWithURL:url fileType:AVFileTypeQuickTimeMovie error:&error]; ... // create AVAssetWriterInput with specified settings NSDictionary* compression = @{ AVVideoAverageBitRateKey:[NSNumber numberWithInt:960000], AVVideoMaxKeyFrameIntervalKey:[NSNumber numberWithInt:1] }; self.videoInput = [AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeVideo outputSettings:@{ AVVideoCodecKey:AVVideoCodecH264, AVVideoCompressionPropertiesKey:compression, AVVideoWidthKey:[NSNumber numberWithInt:480], // required AVVideoHeightKey:[NSNumber numberWithInt:320] // required }]; // add it to the AVAssetWriter [self.videoWriter addInput:self.videoInput];

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• UINavigationController as detail view of a UISplitViewController

  - by user309305

  Hi. I set up a navigation controller as detail view of a split view controller (NewFeedsNavigationController is inherited from UINavigationController). - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after app launch masterViewController = [[MasterViewController alloc] initWithStyle:UITableViewStylePlain]; UINavigationController *masterNavigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController]; NewsFeedsNavigationController *newsFeedsNavigationController = [[NewsFeedsNavigationController alloc] initWithCategories]; splitViewController = [[UISplitViewController alloc] init]; masterViewController.splitViewController = splitViewController; splitViewController.viewControllers = [NSArray arrayWithObjects:masterNavigationController, newsFeedsNavigationController, nil]; splitViewController.delegate = newsFeedsNavigationController; // Add the split view controller's view to the window and display. [window addSubview:splitViewController.view]; [window makeKeyAndVisible]; return YES; } As a matter of fact the navigation controller works splendid in the portrait orientation but kind of freaks out in landscape orientation. when navigating back in the hierarchy (towards the root view) i always have to tap twice per view. on the first tap the visible view is poped from the stack and on the second tap the navigation bar turns. usually both of this happens at the same time. i have no idea what is going wrong.

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• Paperclip and tempfile with Rails

  - by Eric Koslow

  I'm trying to write a rails application where users can upload images, but Paperclip doesn't seem to be working for me. I've gone through all the basic steps (added has_attached_file, the migration, making the form multipart) but I keep getting the same error whenever I try uploading an image: can't convert nil into Integer Looking at the top of the stack ...rails3/lib/paperclip/processor.rb:46:in `sprintf' ...rails3/lib/paperclip/processor.rb:46:in `make_tmpname' .../ruby-1.9.2-head/lib/ruby/1.9.1/tmpdir.rb:154:in `create' .../ruby-1.9.2-head/lib/ruby/1.9.1/tempfile.rb:134:in `initialize' It seems the problem is in the tempfile. My code: _form.rb <%= form_for @high_school, :html => {:multipart => true} do |f| %> <%= f.error_messages %> ... <div class="field"> <%= f.file_field :photo %> </div> <div class="actions"> <%= f.submit %> </div> <% end %> model/high_school.rb ... validates_length_of :password, :minimum => 4, :allow_blank => true has_attached_file :photo has_many :students ... Is this a known problem? I basically followed the instructions from the github to the letter. My environment: Rails3 and Ruby 1.9.2dev Thank you!

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• IOS: How to uplaod a file to specific google drive folder using google drive sdk library

  - by loganathan

  I integrated google drive sdk with my ios app. But i do not know how to upload a file to google drive specific folder. Here the code am using to upload the file. But this one uploading the file to my google drive root folder. Any one share a code to upload a file to google drive specific folder?. My Code: -(void)uploadFileToGoogleDrive:(NSString*)fileName { GTLDriveFile *driveFile = [[[GTLDriveFile alloc]init] autorelease]; driveFile.mimeType = @"application/pdf"; driveFile.originalFilename = @"test.doc"; driveFile.title = @"test.doc"; NSString *filePath = [LocalFilesDetails getUserDocumentFullPathForFileName:fileName isSignedDocument:YES]; GTLUploadParameters *uploadParameters = [GTLUploadParameters uploadParametersWithData:[NSData dataWithContentsOfFile:filePath] MIMEType:@"application/pdf"]; GTLQueryDrive *query = [GTLQueryDrive queryForFilesInsertWithObject:driveFile uploadParameters:uploadParameters]; [self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *ticket, GTLDriveFile *updatedFile, NSError *error) { if (error == nil) { NSLog(@"\n\nfile uploaded into google drive\\<my_folder> foler"); } else { NSLog(@"\n\nfile uplod failed google drive\\<my_folder> foler"); } }]; }

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• Deserializing a complex JSON result (array of dictionaries) with TouchJSON

  - by jpm

  I did a few tests with TouchJSON last night and it worked pretty well in general for simple cases. I'm using the following code to read some JSON content from a file, and deserialize it: NSString *jsonString = [[NSString alloc] initWithContentsOfFile:@"data.json"]; NSData *jsonData = [jsonString dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary *items = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; NSLog(@"total items: %d", [items count]); NSLog(@"error: %@", [error localizedDescription]); That works fine if I have a very simple JSON object in the file (i.e. a dictionary): {"id": "54354", "name": "boohoo"} This way I was able to get access to the array of values, as I wanted to get the item based on its index within the list: NSArray *items_list = [items allValues]; NSString *name = [items_list objectAtIndex:1]; (I understand that I could have fetched the name with the dictionary API) Now I would like to deserialize a semi-complex JSON string, which represents an array of dictionaries. An example of such a JSON string is below: [{"id": "123456", "name": "touchjson"}, {"id": "3456", "name": "bleh"}] When I try to run the same code above against this new content in the data.json file, I don't get any results back. My NSLog() call says "total items: 0", and no error is coming back in the NSError object. Any clues on what is going on? I'm completely lost on what to do, as there isn't much documentation available for TouchJSON, and much less usage examples.

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• IPhone accelerometer works even in flat surface.

  - by Amaresh

  I have an imageView in the view. It moves even if the iphone is still for some time. Why is it so ? Also the image does not respond quickly to the movement of the iphone. Here is my code written for this: I have also set the updateInterval and delegate for the accelerometer. #define kVelocityMultiplier 1000; -(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration { if(currentPoint.x < 0) { currentPoint.x=0; ballXVelocity=0; } if(currentPoint.x > 480-sliderWidth) { currentPoint.x=480-sliderWidth; ballXVelocity=0; } static NSDate *lastDrawTime; if(currentPoint.x<=480-sliderWidth&&currentPoint.x>=0) { if(lastDrawTime!=nil) { NSTimeInterval secondsSinceLastDraw=-([lastDrawTime timeIntervalSinceNow]); ballXVelocity = ballXVelocity + -acceleration.y*secondsSinceLastDraw; CGFloat xAcceleration=secondsSinceLastDraw * ballXVelocity * kVelocityMultiplier; currentPoint = CGPointMake(currentPoint.x + xAcceleration, 266); } slider.frame=CGRectMake(currentPoint.x, currentPoint.y, sliderWidth, 10); } [lastDrawTime release]; lastDrawTime=[[NSDate alloc]init]; } Can anyone help me out please ?

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• Update iPhone UIProgressView during NSURLConnection download.

  - by Scott Pendleton

  I am using this code: NSURLConnection *oConnection=[[NSURLConnection alloc] initWithRequest:oRequest delegate:self]; to download a file, and I want to update a progress bar on a subview that I load. For that, I use this code: - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [oReceivedData appendData:data]; float n = oReceivedData.length; float d = self.iTotalSize; NSNumber *oNum = [NSNumber numberWithFloat:n/d]; self.oDPVC.oProgress.progress = [oNum floatValue]; } The subview is oDPVC, and the progress bar on it is oProgress. Setting the progress property does not update the control. From what I have read on the Web, lots of people want to do this and yet there is not a complete, reliable sample. Also, there is much contradictory advice. Some people think that you don't need a separate thread. Some say you need a background thread for the progress update. Some say no, do other things in the background and update the progress on the main thread. I've tried all the advice, and none of it works for me. One more thing, maybe this is a clue. I use this code to load the subview during applicationDidFinishLaunching: self.oDPVC = [[DownloadProgressViewController alloc] initWithNibName:@"DownloadProgressViewController" bundle:nil]; [window addSubview:self.oDPVC.view]; In the XIB file (which I have examined in both Interface Builder and in a text editor) the progress bar is 280 pixels wide. But when the view opens, it has somehow been adjusted to maybe half that width. Also, the background image of the view is default.png. Instead of appearing right on top of the default image, it is shoved up about 10 pixels, leaving a white bar across the bottom of the screen. Maybe that's a separate issue, maybe not.

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• How can I programmatically link an UIView or UIImageView with an event like "touch up inside"?

  - by Thanks

  Interface Builder will only allow me to hook up such events for an button. But like in HTML, I just want to haven an blank UIImageView where - as soon as the user taps it - a method is invoked. I hope there is some cool programmatically way of doing that, which I don't know about. UPDATE: In my View Controller that creates the UIImageView I tried to do this: SEL actionSelector = @selector(doSomethingWhenImageIsTouched:); [self.myUIImageView addTarget:nil action:actionSelector forControlEvents:UIControlEventTouchUpInside]; The compiler gives me a warning, that UIImageView may not respond to addTarget:... what do I have to do so that it works with an UIImageView. I see in the docs that UIImageView does not inherit from UIControl, but addTarget: is part of UIControl. UPDATE: I ended up creating an UIButton after creating the UIImageView. Then I set the frame of that button to the frame of the UIImageView, and alpha to 0.1f. For some reason, it will not work if alpha is 0.0f. And then, I did that cool addTarget: thing...

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• iPhone Device 3.1 SDK Breaks vertical alignment of UITableViewCellStyleValue1 textLabel

  - by user171089

  Can anyone provide an explanation for the following phenomenon? As of the iPhone Device 3.1 SDK, I've found that if a UITableViewCell is of style UITableViewCellStyleValue1 and its detailTextLabel.text is unassigned, then the textLabel does not display in the center of the cell as would be expected. One notable caveat is that this only happens for me when I'm testing on the Device – the iPhone Simulator 3.1 SDK displays the cells correctly. Also, this is not a problem when using the iPhone Device 3.0 SDK. Below is a simple UITableView subclass implementation that demonstrates the problem. @implementation BuggyTableViewController #pragma mark Table view methods // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 3; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease]; } switch (indexPath.row) { case 0: cell.textLabel.text = @"detailTextLabel.text unassigned"; break; case 1: cell.textLabel.text = @"detailTextLabel.text = @\"\""; cell.detailTextLabel.text = @""; break; case 2: cell.textLabel.text = @"detailTextLabel.text = @\"A\""; cell.detailTextLabel.text = @"A"; break; default: break; } return cell; } @end

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• Error creating Rails DB using rake db:create

  - by Simon

  Hi- I'm attempting to get my first "hello world" rails example going using the rails' getting started guide on my OSX 10.6.3 box. When I go to execute the first rake db:create command (I'm using mysql) I get: simon@/Users/simon/source/rails/blog/config: rake db:create (in /Users/simon/source/rails/blog) Couldn't create database for {"reconnect"=>false, "encoding"=>"utf8", "username"=>"root", "adapter"=>"mysql", "database"=>"blog_development", "pool"=>5, "password"=>nil, "socket"=>"/opt/local/var/run/mysql5/mysqld.sock"}, charset: utf8, collation: utf8_unicode_ci (if you set the charset manually, make sure you have a matching collation) I found plenty of stackoverflow questions addressing this problem with the following advice: Verify that user and password are correct (I'm running w/ no password for root on my dev box) Verify that the socket is correct - I can cat the socket, so I assume it's correct Verify that the user can create a DB (As you can see root can connect and create a this DB no problem) simon@/Users/simon/source/rails/blog/config: mysql -uroot -hlocalhost Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 16 Server version: 5.1.45 Source distribution Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql create database blog_development; Query OK, 1 row affected (0.00 sec) Any idea on what might be going on here?

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• dbExpress error in Delphi 2010

  - by JosephStyons

  The below code works in Delphi 2007, but it gives me this error in Delphi 2010: --------------------------- Error --------------------------- Cannot load oci.dll library (error code 127). The oci.dll library may be missing from the system path or you may have an incompatible version of the library installed. --------------------------- OK Details >> --------------------------- The exception is raised when I set "connected" to "true". I have tried placing a copy of "oci.dll" in the same folder as the .exe file, but I get the same message. I also get this message when using the form designer and a visible TSQLConnection component. Any thoughts? function TDBExpressConnector.GetConnection(username, password, servername: string) : TSQLConnection; begin //take a username, password, and server //return a connected TSQLConnection try FSqlDB := TSQLConnection.Create(nil); with FSqlDB do begin Connected := False; DriverName := 'Oracle'; GetDriverFunc := 'getSQLDriverORACLE'; KeepConnection := True; LibraryName := 'dbxora30.dll'; ConnectionName := 'OracleConnection';; Params.Clear; Params.Add('DriverName=Oracle'); Params.Add('DataBase=' + servername); Params.Add('User_Name=' + username); Params.Add('Password=' + password); Params.Add('RowsetSize=20'); Params.Add('BlobSize=-1'); Params.Add('ErrorResourceFile='); Params.Add('LocaleCode=0000'); Params.Add('Oracle TransIsolation=ReadCommited'); Params.Add('OS Authentication=False'); Params.Add('Multiple Transaction=False'); Params.Add('Trim Char=False'); Params.Add('Decimal Separator=.'); LoginPrompt := False; Connected := True; end; Result := FSqlDB; except on e:Exception do raise; end; //try-except end;

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• what's wrong with sql statements sqlite3_column_text ??

  - by ahmet732

  if(sqlite3_open([databasePath UTF8String], & database) == SQLITE_OK) { NSLog(@"DB OPENED"); // Setup the SQL Statement and compile it for faster access const char *sqlStatement ="select name from Medicine"; sqlite3_stmt *compiledStatement; int result = sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, nil); NSLog(@"RESULT %d", result); if(result == SQLITE_OK) { NSLog(@"RESULT IS OK..."); // Loop through the results and add them to the feeds array while(sqlite3_step(compiledStatement) == SQLITE_ROW) { // Read the data from the result row NSLog(@"WHILE IS OK"); **araci = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)];** NSLog(@"Data read"); NSLog(@"wow: %",araci); }//while }//if sqlite_prepare v2 // Release the compiled statement from memory sqlite3_finalize(compiledStatement); NSLog(@"compiled stmnt finalized.."); } sqlite3_close(database); NSLog(@"MA_DB CLOSED"); Questions 1 ) Everything is alright until bold code. when i run the app, throws an exception below. I have one table and one row in my db relatively, id (integer), name (varchar), desc (varchar) (I created my table using SQLite Manager). 2-) What is text type in SQLite Manager? Is that NSString? Also how can I put the string values(in table) to an NSMutableArray ? (I am really having difficulty in conversion.) *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** +[NSString stringWithUTF8String:]: NULL cString'

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• UIWebView not loading URL when URL is passed from UITableView

  - by Mark Hazlett

  Hey Everyone, So i'm building a webView into my application to show the contents of a URL that I am passing from a selection in a UITableView. I know the UIWebView is loading content properly because if you hard code say http://www.google.ca into the NSURL then it loads fine, however when I'm passing the URL that I parsed from an RSS feed back from the UITableView it won't load the URL properly. I tried the debugger and the URL is coming out as nil right before I try and parse it, however I can use NSLog to print the value of it out to the console. here's the code in my UIViewController that has my UIWebView #import <UIKit/UIKit.h> @interface ReadFeedWebViewController : UIViewController { NSString *urlToGet; IBOutlet UIWebView *webView; } @property(nonatomic, retain) IBOutlet UIWebView *webView; @property(nonatomic, retain) NSString *urlToGet; @end Here's the code for my implementation's viewDidLoad method... // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; NSLog(@"Url inside Web View Controller - %@", urlToGet); NSURL *url = [NSURL URLWithString:urlToGet]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [self.webView loadRequest:requestObj]; } Once again, I can print the URL to NSLog fine and if I hard code the URL into the NSURL object then it will load fine in the UIWebView. Here is where I'm setting the value in my UITableViewController... - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { ReadFeedWebViewController *extendedView = [[ReadFeedWebViewController alloc] init]; int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; extendedView.urlToGet = [[stories objectAtIndex: storyIndex] objectForKey:@"link"]; //NSLog([[stories objectAtIndex: storyIndex] objectForKey:@"summary"]); NSLog([[stories objectAtIndex: storyIndex] objectForKey:@"link"]); [self.navigationController pushViewController:extendedView animated:YES]; [extendedView release]; } However, since I can print the value using NSLog in the extendedView view controller I know it's being passed properly. Cheers

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• Generate JSON object with transactionReceipt

  - by Carlos

  Hi, I've been the past days trying to test my first in-app purchse iphone application. Unfortunately I can't find the way to talk to iTunes server to verify the transactionReceipt. Because it's my first try with this technology I chose to verify the receipt directly from the iPhone instead using server support. But after trying to send the POST request with a JSON onbject created using the JSON api from google code, itunes always returns a strange response (instead the "status = 0" string I wait for). Here's the code that I use to verify the receipt: - (void)recordTransaction:(SKPaymentTransaction *)transaction { NSString *receiptStr = [[NSString alloc] initWithData:transaction.transactionReceipt encoding:NSUTF8StringEncoding]; NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjectsAndKeys:@"algo mas",@"receipt-data",nil]; NSString *jsonString = [jsonDictionary JSONRepresentation]; NSLog(@"string to send: %@",jsonString); NSLog(@"JSON Created"); urlData = [[NSMutableData data] retain]; //NSURL *sandboxStoreURL = [[NSURL alloc] initWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"]]; [request setHTTPMethod:@"POST"]; [request setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]]; NSLog(@"will create connection"); [[NSURLConnection alloc] initWithRequest:request delegate:self]; } maybe I'm forgetting something in the request's headers but I think that the problem is in the method I use to create the JSON object. HEre's how the JSON object looks like before I add it to the HTTPBody : string to send: {"receipt-data":"{\n\t\"signature\" = \"AUYMbhY ........... D0gIjEuMCI7Cn0=\";\n\t\"pod\" = \"100\";\n\t\"signing-status\" = \"0\";\n}"} The responses I've got: complete response { exception = "java.lang.IllegalArgumentException: Property list parsing failed while attempting to read unquoted string. No allowable characters were found. At line number: 1, column: 0."; status = 21002; } Thanks a lot for your guidance.

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• Problem with Authlogic and Unit/Functional Tests in Rails

  - by mmacaulay

  I'm learning how unit testing is done in Rails, and I've run into a problem involving Authlogic. According to the Documentation there are a few things required to use Authlogic stuff in your tests: test_helper.rb: require "authlogic/test_case" class ActiveSupport::TestCase setup :activate_authlogic end Then in my functional tests I can login users: UserSession.create(users(:tester)) The problem seems to stem from the setup :activate_authlogic line in test_helper.rb, whenever that is included, I get the following errors when running functional tests: NoMethodError: undefined method `request=' for nil:NilClass authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:63:in `send' authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:63:in `method_missing' If I remove setup :activate_authlogic and add instead Authlogic::Session::Base.controller = Authlogic::ControllerAdapters::RailsAdapter.new(self) to test_helper.rb, my functional tests seem to work but now my unit tests fail: NoMethodError: undefined method `params' for ActiveSupport::TestCase:Class authlogic (2.1.3) lib/authlogic/controller_adapters/abstract_adapter.rb:30:in `params' authlogic (2.1.3) lib/authlogic/session/params.rb:96:in `params_credentials' authlogic (2.1.3) lib/authlogic/session/params.rb:72:in `params_enabled?' authlogic (2.1.3) lib/authlogic/session/params.rb:66:in `persist_by_params' authlogic (2.1.3) lib/authlogic/session/callbacks.rb:79:in `persist' authlogic (2.1.3) lib/authlogic/session/persistence.rb:55:in `persisting?' authlogic (2.1.3) lib/authlogic/session/persistence.rb:39:in `find' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:96:in `get_session_information' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:95:in `each' authlogic (2.1.3) lib/authlogic/acts_as_authentic/session_maintenance.rb:95:in `get_session_information' /test/unit/user_test.rb:23:in `test_should_save_user_with_email_password_and_confirmation' What am I doing wrong?

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• Error in requiring Sinatra gem

  - by Dan

  I'm having a hard time getting Sinatra running on my local setup, Ubuntu Karmic 9.10. The error getting thrown when I have require 'sinatra' is: NoMethodError: undefined method `[]' for nil:NilClass from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:891:in `compile' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:883:in `gsub' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:883:in `compile' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:856:in `route' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:838:in `get' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:1077 from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:929:in `configure' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:1076 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra.rb:4 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' from (irb):2 from :0 I've tried: Uninstalling/reinstalling Sinatra Updating all gems Ensuring all dependencies exist (rack) Any ideas? Your time and help is greatly appreciated!

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• UITextField in UIAlertView doesn't respond to cut/copy/paste on second showing

  - by Jesse Grosjean

  Edit Reposting... I accidentally marked my previous question as "commuity wiki" and didn't realize that answers to wiki posts don't generate reputation. I"m adding a UITextView to a UIAlertView with the following code: UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter Name Here" message:@"this gets covered!" delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:@"OK!", nil]; UITextField *myTextField = [[UITextField alloc] initWithFrame:CGRectMake(12, 45, 260, 25)]; CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0, 60); [alert setTransform:myTransform]; [myTextField setBackgroundColor:[UIColor whiteColor]]; [alert addSubview:myTextField]; [alert show]; [alert release]; [myTextField release]; If I place that code in a standard action method: (IBAction)testAlertView:(id)sender { ...the above code... } Then the first time I show the UIAlertView the cut/copy/paste popup menu will show in UITextField that's been added to the UIAlertView. (For instance if I tap and hold, then "Paste" will popup after I release. The problem is after working correctly the first time, none of the cut/copy/paste buttons will show up again next time I show the UIAlertView (new instance) unless I restart the app. Does anyone know why, or how to fix this problem? Bonus information I just found out that I can get things to always work if I create an show the alert within a UIActionSheet delagate callback. For instance this always works (cut/copy/paste always shows up when in the UITextField when appropriate) (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { ...the above code... } Any idea what might be happening in this second case that make things work? I don't want to use a UIActionSheet in my app, so I'd like to find a way to make it work from a plain old action method. Thanks, Jesse

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• UITextField in UIAlertView doesn't respond to cut/copy/paste on second showing

  - by Jesse Grosjean

  I"m adding a UITextView to a UIAlertView with the following code: UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter Name Here" message:@"this gets covered!" delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:@"OK!", nil]; UITextField *myTextField = [[UITextField alloc] initWithFrame:CGRectMake(12, 45, 260, 25)]; CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0, 60); [alert setTransform:myTransform]; [myTextField setBackgroundColor:[UIColor whiteColor]]; [alert addSubview:myTextField]; [alert show]; [alert release]; [myTextField release]; If I place that code in a standard action method: - (IBAction)testAlertView:(id)sender { ...the above code... } Then the first time I show the alert view the cut/copy/paste popup menu will show in the text fields that's been added to the alert view. (For instance if I tap and hold, then "Paste" will popup after I release. The problem is after working correctly the first time, none of the cut/copy/paste buttons will show up again when I show the alert view unless I restart the app. Does anyone know why, or how to fix this problem? Bonus information I just found out that I can get things to always work if I create an show the alert within a UIActionSheet delagate callback. For instance this always works (cut/copy/paste always shows up when in the UITextField when appropriate) - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { ...the above code... } Any idea what might be happening in this second case that make things work? I don't want to use a UIActionSheet in my app, so I'd like to find a way to make it work from a plain old action method. Thanks, Jesse

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• Pause code execution until UIAlertView button is pressed?

  - by JuBu1324

  One of my methods sends a message to an object (what do you know about that), and expects a BOOL for an answer. However, BOOL answer it is expecting is based on the answer to a UIAlertView created in the receiving object's method. However, the code doesn't pause while waiting for the user to answer the UIAlertView. My problem is: how do I use -alertView:clickedButtonAtIndex in the method's return value? Here's the code the message runs (in this construction, I was expecting navigateAwayFromTab to change based on the user input in the UIAlertView, but it never gets a chance): - (BOOL)readyToNavigateAwayFromTab { NSLog( @"message received by Medical View"); navigateAwayFromTab = NO; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Navigate Away From Tab?" message:@"Navigating away from this tab will save your work." delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil ]; [alert show]; [alert release]; return navigateAwayFromTab; } #define CANCEL 0 #define OK 1 - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if( buttonIndex == OK ) navigateAwayFromTab = YES; } I've been reading up on the modal UIAlertView debate, and I agree with apple's implementation - at lest as the rule. However, in this case I don't see any way of solving the problem by putting code in -alertView:clickedButtonAtIndex because I don't need to run code based on the UIAlertView, I just need to read the response. Any suggestions on how I can reach my gaol? I've tried a while loop after [alert show] already, but then the alert doesn't even show then, and for a number of reasons I can't use -viewWillDisapear.

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• strange multiple files download - NSURLConnection

  - by Georg

  hi all, I encounter a problem by following your comment. I would like to download different file at same time with different delegate: .h: NSMutableData *fileData; .m: NSString *imgfile = [NSString stringWithFormat:@"http://xxxx/01.jpg"]; NSURL *fileURL1 = [NSURL URLWithString:imgfile]; NSString *audiofile = [NSString stringWithFormat:@"http://xxxx/01.mp3"]; NSURL *fileURL2 = [NSURL URLWithString:audiofile]; NSURLRequest *request1 = [NSURLRequest requestWithURL:fileURL1 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSURLRequest *request2 = [NSURLRequest requestWithURL:fileURL2 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSArray *connections = [[NSArray alloc] initWithObjects: [[NSURLConnection alloc] initWithRequest:request1 delegate:self ], [[NSURLConnection alloc] initWithRequest:request2 delegate:self ], nil]; - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { fileData = [[NSMutableData alloc] init]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [fileData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"Unable to fetch data"); } ok, the download process works, but, the file size of jpg and mp3 are incorrect, the only correct thing is the total file size (jpg+mp3), please could you have a look on the code, what is missing? Another question is, I put the file in a NSMutableArray, my question is, how to check which index of array is the correct file type (jpg and mp3)? because I need to save them to the device folder.

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• Intercepting/Hijacking iPhone Touch Events for MKMapView

  - by Shawn

  Is there a bug in the 3.0 SDK that disables real-time zooming and intercepting the zoom-in gesture for the MKMapView? I have some real simple code so I can detect tap events, but there are two problems: zoom-in gesture is always interpreted as a zoom-out none of the zoom gestures update the Map's view in realtime. In hitTest, if I return the "map" view, the MKMapView functionality works great, but I don't get the opportunity to intercept the events. Any ideas? MyMapView.h: @interface MyMapView : MKMapView { UIView *map; } MyMapView.m: - (id)initWithFrame:(CGRect)frame { if (![super initWithFrame:frame]) return nil; self.multipleTouchEnabled = true; return self; } - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event { NSLog(@"Hit Test"); map = [super hitTest:point withEvent:event]; return self; } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"%s", __FUNCTION__); [map touchesCancelled:touches withEvent:event]; } - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent*)event { NSLog(@"%s", __FUNCTION__); [map touchesBegan:touches withEvent:event]; } - (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"%s, %x", __FUNCTION__, mViewTouched); [map touchesMoved:touches withEvent:event]; } - (void)touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"%s, %x", __FUNCTION__, mViewTouched); [map touchesEnded:touches withEvent:event]; }

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• iPhone: CoreGraphics and memory management

  - by carloe

  Can someone tell me what I am doing wrong here? I use this method to flip through pages in a PDF. But something in the code seems to not be released properly because every-time I pull a PDF page that contains an image my memory footprint increases. I am fairly new to CoreGraphics, and can't for the life of me figure out where this method would leak memory. -(UIImage *)pageAtIndex:(NSInteger)pageNumber withWidth:(CGFloat)width andHeight:(CGFloat)height { if((pageNumber>0) && (pageNumber<=pageCount)) { CGFloat scaleRatio; // multiplier by which the PDF Page will be scaled UIGraphicsBeginImageContext(CGSizeMake(width, height)); CGContextRef context = UIGraphicsGetCurrentContext(); CGPDFPageRef page = CGPDFDocumentGetPage(pdf, pageNumber); CGRect pageRect = CGPDFPageGetBoxRect(page, kCGPDFBleedBox); //Figure out the orientation of the PDF page and set the scaleRatio accordingly if(pageRect.size.width/pageRect.size.height < 1.0) { scaleRatio = height/pageRect.size.height; } else { scaleRatio = width/pageRect.size.width; } //Calculate the offset to center the image CGFloat xOffset = 0.0; CGFloat yOffset = height; if(pageRect.size.width*scaleRatio<width) { xOffset = (width/2)-(pageRect.size.width*scaleRatio/2); } else { yOffset = height-((height/2)-(pageRect.size.height*scaleRatio/2)); } CGContextTranslateCTM(context, xOffset, yOffset); CGContextScaleCTM(context, 1.0, -1.0); CGContextSaveGState(context); CGAffineTransform pdfTransform = CGPDFPageGetDrawingTransform(page, kCGPDFBleedBox, CGRectMake(0, 0, pageRect.size.width, pageRect.size.height), 0, true); pdfTransform = CGAffineTransformScale(pdfTransform, scaleRatio, scaleRatio); CGContextConcatCTM(context, pdfTransform); CGContextDrawPDFPage(context, page); UIImage *tempImage = [UIGraphicsGetImageFromCurrentImageContext() retain]; CGContextRestoreGState(context); UIGraphicsEndPDFContext(); UIGraphicsEndImageContext(); return tempImage; } return nil; }

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• iPhone Keychain Questions

  - by AO

  Some questions: * Is there some way to view the data present in the iPhone keychain? * The items an application adds, cannot be accessed by any other application, can it? * What is the purpose of the identifier and access group in the initialization? My guess is that the identifier is simply used to find items but I'm a little bit unsure of the access group. If the access group is assigned nil, all applications can access the items? If the access group is assigned X, could the items be accessed by another application with the same string X as access group or what is the purpose of the access group in this case? * Is the data in the keychain removed when the application is removed? If not, how do I achieve that? And finally: I can't get the KeychainItemWrapper (Apple example) to work. I've added the KeychainItemWrapper files to my project and when running it on the phone, an exception is thrown by SecItemAdd, saying that one or more parameters were not valid (result code -50). The code triggering the SecItemAdd follows: KeychainItemWrapper* wrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"something" accessGroup:@"com.company.whatever"]; [wrapper setObject:@"this is my password" forKey:@"password"]; NSLog(@"Password: %@", [wrapper objectForKey:@"password"]); The code can be found at http://developer.apple.com/iphone/library/samplecode/GenericKeychain/index.html

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