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  • Telling a UITextField to become first responder while embedded in a UITableViewCell

    - by Jasarien
    I have a UITextField that is a subview of a UITableViewCell. When my view loads, I want the text field to become first responder. I have a pointer to the text field in the table cell, so to do this I am trying: [myTextField becomeFirstResponder]; This returns NO all the time, regardless of when it's called, which according to the docs means the text field refused to become first responder... What am I doing wrong? Edit: The text field properly responds to being touched. It bring up the keyboard then. It's only when telling it to become first responder programmatically that the problem happens.

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  • UIScrollView ImageView with pins on top

    - by Koppo
    To all, I have a UIScrollView which has a UIImageView. I want to show pins on this imageView. When I add pins as subviews of the ImageView everything is great except for when you zoom the scale transform happens on the pins also. I don't want this behavior and want my pins to stay the same. So I choose to add the Pins to another view which sits on top of the ImageView and is also a subview of the UIScrollView. The idea here if you will imagine is to have a layer which hovers over the map and won't scale yet show pins over where I plot them. The pin when added to the layer view don't cale if the ImageView scales. However the issue then bceomes the position of the pins doesn't match the original origin x/y as the ImageView has had a scale transform. Basically this is a custom map of a place with Pins. I am trying to have the Pins float over and not zoom in and out over my ImageView yet remember where I placed them when the zoom happens. Some code scrollView = [[UIScrollView alloc] initWithFrame:viewRect]; scrollView.delegate = self; scrollView.pagingEnabled = NO; scrollView.scrollsToTop = NO; [scrollView setBackgroundColor:[UIColor clearColor]]; scrollView.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview scrollView.bounces = YES; scrollView.autoresizingMask = UIViewAutoresizingFlexibleHeight; scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite; imageViewMap = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"]]; imageViewMap.userInteractionEnabled = YES; viewRect = CGRectMake(0,0,imageViewMap.image.size.width,imageViewMap.image.size.height); //viewRect = CGRectMake(0,0,2976,3928); [scrollView addSubview:imageViewMap]; [scrollView setContentSize:CGSizeMake(viewRect.size.width, viewRect.size.height)]; iconsView = [[UIView alloc] initWithFrame:imageViewMap.frame]; [scrollView addSubview:iconsView]; Code to add Pin later on some event. [iconsView addSubview:pinIcon]; I am stuck in trying tp figure out how to to get my pins to hover on the map without moving when the scale happens. Thanks

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  • Instruments freezes and restarts iPod touch 2g

    - by Eande
    I can't get my application running with instruments. I tried running through xcode with run-start with performance tool, instruments starts, iPod gets stuck and restarts everytime. It is really annoying. I am on 10.6.2, xcode 3.2.2 and using 3.2.1 SDK. Need help!

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  • Setting an delegate for the UIDatePicker animation?

    - by james.ingham
    If I had a date picker within an action sheet and called the following line: [datePicker setDate:newDate animated:YES]; And then my app hides the action sheet the date picker is within, is there anyway to set up a animation delegate so that the user see's the animation of the date picker first and then hides the action sheet? I have done this with UIView's by calling: [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(METHOD)]; However I can not see anything like this for the date picker. Thanks in advanced - James

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  • What are the best resources for learning about concurrency and multi-threaded applications?

    - by Zepee
    I realised I have a massive knowledge gap when it comes to multi-threaded applications and concurrent programming. I've covered some basics in the past, but most of it seems to be gone from my mind, and it is definitely a field that I want, and need, to be more knowledgeable about. What are the best resources for learning about building concurrent applications? I'm a very practical oriented person, so if said book contains concrete examples the better, but I'm open to suggestions. I personally prefer to work in pseudocode or C++, and a slant toward game development would be best, but not required.

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  • how can I run the apple Storekit in the simulator?

    - by software evolved
    Normally, this can't be done. I have written a class which wraps around the usual Storekit functionality and will allow an app to behave (while running on the simulator) as if the Storekit transaction had succeeded. I have written a blog post about the design decisions behind the code, which can be read here and includes a download link: http://code-evolution.blogspot.com/2010/05/evolved-code-example-1-simplestore-for.html Or you can just grab the sample project from this location: simplestoreevolved.googlecode.com/files/SimpleStoreEvolved.zip Enjoy T.

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  • Trying to force redraw of UITableViewCell

    - by Suresh
    I found this post on Beveled UITableViewCells from http://news.selectstartstudios.com/beveled-uitableviewcells/. I'm using the technique to reduce the width of the cells, and for the most part it works great. However, I have a small problem. Sometimes the cells are not redrawn properly. For example, even though a cell is supposed to be a "middle" cell, it is drawn as a "top" cell: yfrog.com/f1screenshot20100424at100 How can I fix this? I have tried forcing the cell to redraw via [cell setNeedsDisplay], [cell setNeedsLayout], [tableView reloadRowAtIndexPath:withAnimation:], [cell drawrect:], and [tableView drawRect:atIndexPath]. I am out of ideas. Thanks again!

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  • viewControllers is empty array

    - by Antonio
    Hi: I'm having a problem using the UITabBarController and can't seem to get anywhere... maybe someone has run into something similar. I have the typical Tab Bar + Navigation app and everything is working great, except when I access options in the More tab. On any other tab, if I log: NSLog(@"%@ \n %@",self.selectedViewController,[self.selectedViewController viewControllers]); I get, for example: 2010-05-29 00:05:13.512 MD[9950:207] <UINavigationController: 0x4c35ad0> ( <MDViewController: 0x4c35910>, <Detalle: 0x9050e80> ) If I access an element in the More tab, I get: 2010-05-29 00:05:13.512 MD[9950:207] <UINavigationController: 0x4c35ad0> ( ) An empty viewControllers array? Am I missing something? Thanks! Antonio

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  • How to add lowercase field to NSURLRequest header field?

    - by Drewsmits
    I'm getting pretty frustrated figuring out how to add a lowercase header field to an NSMutableURLRequest. NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:MyURLString]]; [urlRequest setValue:@"aValue" forHTTPHeaderField:@"field"]; In the example above, "field" get's switched to "Field," since the header field names are case insensitive. I wouldn't think this should happen, but it does. The API I am working with is case sensitive, so my GET request is ignored. Is there any way to override the case switch? Thanks

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  • UITableView programatically create delegate object?

    - by fuzzygoat
    I have a question regarding setting up a custom delegate class for use with UITableView. What I have done is as follows: Setup a new class (in sperate *.h and *.m files for the class) Conformed that new class to the <UITableViewDelegate, UITableViewDataSource> protocols Added the required methods. Created a pointer to the new object using @property and IBOutlet. In InterfaceBuilder created and assigned an object template to my new class Assigned the dataSource and delegate connections. This all works fine. My question is if I don't want to use interfaceBuilder to setup and instantiate my new delegate class directly in Xcode how do I go about doing that? More specifically how would I: Instantiate the delegate class, would that be created / owned by the controller? Set the dataSource and delegate connections? What is the best way of doing this? any help / information is much appreciated. Gary

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  • Packaging a Bundle with a static library

    - by 4thSpace
    I have a static library that includes some xibs. These will basically be the same across projects. I'd like to include the xibs as part of the library. I can include their veiwcontrollers, reference these controllers in the calling project but then there isn't a xib to load. When I right click the xib in the library project, it can't be part of the target. I thought about creating a CFPluginBundle but that creates a new project. I'd loose all of my IBOutlet and IBAction references. What is the best way to reuse xibs that also have outlets and actions to specific controllers?

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  • How to directly store SQLite data in XCode?

    - by Justin
    Hi guys: Searched on here and got some vague answers, so I thought i'd rephrase the problem to get some clearer answers- Right now I have an SQL Lite db that reads/parses information from a pre-formatted .txt file. When I open the app, there is a slight 'lag' as the iDevice parses the info, then gets fetched for the iDevice. I'm just wondering if there's any way to just 'save' all the information directly in the xCode so there's no lag/fetch time? Thank you.

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  • When we should use pushScene and replaceScene in cocos2d ?

    - by srikanth rongali
    Hi, I cocos2d, I am using pushScene and replaceScene to move to next scene. But, I am confused which we should use? When I am using replaceScene in some places app is crashing and giving errors like -[UITextView length]: unrecognized selector sent to instance 0x842a750 Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UITextView length]: unrecognized selector sent to instance 0x842a750' But, in my program I am not passing length to UITextView. My program is in this way In scene1 I have UITextView, and I am replacing this scene with scene2. Then -(id)buttonPressed:(id)sender { [description removeFromSuperview]; // It is the textView(description) CCScene *Scene = [CCScene node]; CCLayer *Layer = [scene2 node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] setAnimationInterval:1.0/60]; [[CCDirector sharedDirector] replaceScene: Scene]; } But, when I am using pushScene in presence of replaceScene it is working good. Please clarify me which one should use in which cases ? Thank You

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  • How do I code a green button in UIActionSheet?

    - by Joshua
    I am using the code: { randomstatus=0; msg=[[NSString alloc]initWithFormat:@"Good job, do you want to continue?"]; UIActionSheet *actionSheet=[[UIActionSheet alloc]initWithTitle:msg delegate:self cancelButtonTitle:@"No" destructiveButtonTitle:@"Yes" otherButtonTitles:nil]; [actionSheet showInView:self.view]; [actionSheet release]; [msg release]; } I don't want to change the code, but I need the "destructiveButton" to be green instead of red. Is this possible, or do i need to use a different button?

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  • Problem setText UITextView

    - by Mat
    Hi i have a problem. I have 2 viewcontroller, in the first there is a mapView that implements the function "calloutAccessoryControlTapped" to tap a button on an annotation on the mapView; in the second there is just a UITextView. I want to change the text of the UITextView (and show the SecondViewController) in the second controller once the button on annotation is clicked; here is my code (FirstViewController) Header @interface FirstViewController<MKMapViewDelegate>{ IBOutlet MKMapView *mapView; SecondViewController *secondV;} @end Implementation @implementation FirstViewController - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control{ secondV = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil]; NSString *myS = @"some text here"; [secondV.myTextView setText:myS]; //Switch from this to the secondview [self presentModalViewController:secondV animated:YES]; @end (SecondViewController) Header @interface SecondViewController{ IBOutlet UITextView *myTextView; } @property(nonatomic, retain)UITextView *postitTextView; - (IBAction)backToMAp; - (void)setText:(NSString *)string; @end Implementation @implementation SecondViewController - (IBAction)backToMAp{ //Back To First View; [self dismissModalViewControllerAnimated:YES];} - (void)setText:(NSString *)string{ myTextView.text = string;} In this code when i tap on the button ([self presentModalViewController:secondV animated:YES];) on annotation the first time the second view show up but the text of UITextView don't change, when i back on the FirstView ([self dismissModalViewControllerAnimated:YES];) and then again tap the button to switch again to secondView the text of UITextView change..... Sorry for long thread and for my bad english!! Thank you stack!

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  • strange problem when placing UILabels on UITableView and calling reloadData

    - by user262325
    Hello everyone I hope to list all files in a directory to an UITableView atableview There are files in Document directory a.txt b.txt F (folder) c.txt in folder F, there are 2 files M.exe N.exe When I change to folder F, it should display on atableview M.exe N.exe but Result is in F, it displayed b.txt F the codes are shown as below -(void) removeACell:(NSInteger)row; { NSUInteger _lastSection = 0;//[self numberOfSectionsInTableView:atableview]; NSUInteger _lastRow =row;// [atableview numberOfRowsInSection:_lastSection] - 1; NSUInteger _path[2] = {_lastSection, _lastRow}; NSIndexPath *_indexPath = [[NSIndexPath alloc] initWithIndexes:_path length:2]; NSArray *_indexPaths = [[NSArray alloc] initWithObjects:_indexPath, nil]; [_indexPath release]; [atableview deleteRowsAtIndexPaths:_indexPaths withRowAnimation:UITableViewRowAnimationBottom]; [_indexPaths release]; } -(void) reloadDirectory { if([fileArray count]>0) { NSInteger n=fileArray.count; for(int i=n-1;i>=0;i--) { [fileArray removeObjectAtIndex: i]; [self removeACell:i]; } } NSFileManager *manager = [NSFileManager defaultManager]; NSLog(@"*******************" ); NSLog(@"ffff%@",[self appDelegate].gCurrentPath_AppDelegate); for(NSString *path in [manager contentsOfDirectoryAtPath:[self appDelegate].gCurrentPath_AppDelegate error:nil]) { NSDictionary *modData= [manager attributesOfItemAtPath: [appDelegate.gCurrentPath_AppDelegate //directory of files stringByAppendingPathComponent:path ] error:nil ]; NSDate * dateModified=(NSDate *) [modData objectForKey:NSFileModificationDate]; NSNumber *fileSize=[modData objectForKey:NSFileSize] ; if(dateModified) { FileObj *newobj=[[FileObj alloc] init ]; [ newobj seta:1]; NSString *ss=[[NSString alloc] initWithFormat:@"%@",path] ; [newobj setfileName:ss]; NSLog(@"---------------%@",ss); BOOL isDir; [manager fileExistsAtPath:[appDelegate.gCurrentPath_AppDelegate stringByAppendingPathComponent:path ] isDirectory:&isDir]; [newobj setisDirectory: isDir ]; [newobj setfilePath:@"1"]; NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"EEE MMM dd HH:mm:ss zzz yyyy"]; NSString *stringFromDate =[[NSString alloc] initWithString: [formatter stringFromDate:dateModified]]; [newobj setfileDate:stringFromDate]; [formatter release]; NSString * fileSize1= [[NSString alloc] initWithFormat:@"%d",[fileSize integerValue] ]; [newobj setfileSize: fileSize1]; [ fileArray addObject:newobj]; [newobj release]; }; [atableview reloadData]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSInteger row=[indexPath row]; NSInteger section=[indexPath section]; static NSString *SimpleTableIdentifier1 = @"CellTableIdentifier"; UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier1 ]; int newRow = [indexPath row]; selectIndex=newRow; if(cell==nil) { //**breakpoint AAA here** CGRect cellframe=CGRectMake(0, 0, 300, 60); cell=[[[UITableViewCell alloc] initWithFrame:cellframe reuseIdentifier:SimpleTableIdentifier1] autorelease]; if ([[fileArray objectAtIndex:row] getisDirectory]) { UIImage *image = [UIImage imageNamed:@"folder.png"]; cell.imageView.image = image; } else { UIImage *image = [UIImage imageNamed:@"files.png"]; cell.imageView.image = image; } cell.accessoryType=UITableViewCellAccessoryDetailDisclosureButton; ///-------------------------------------------------------- UILabel *b1 =[ [UILabel alloc]init]; b1.frame = CGRectMake(40.9f,8.0f,250.0f,20.0f) ; [b1 setBackgroundColor:[UIColor clearColor]]; [b1 setTag:(row+15000)]; //------------------------------------------------------- UILabel *b2 =[ [UILabel alloc]init]; b2.frame = CGRectMake(40.9f,30.0f,250.0f,13.0f) ; [b2 setBackgroundColor:[UIColor clearColor]]; [b2 setTag:row+16000]; [b2 setFont:[UIFont systemFontOfSize:10.0]]; //------------------------------------------------ UILabel *b3 =[ [UILabel alloc]init]; b3.frame = CGRectMake(40.9f,45.0f,250.0f,13.0f) ; [b3 setBackgroundColor:[UIColor clearColor]]; [b3 setFont:[UIFont systemFontOfSize:10.0]]; [b3 setTag:row+17000]; [cell.contentView addSubview:b1]; [cell.contentView addSubview:b2]; [cell.contentView addSubview:b3]; [b1 release]; [b2 release]; [b3 release]; }; if([fileArray count]>0) //check if fileArray is correct { NSLog(@"___________________" ); for (int i=0;i<[fileArray count];i++) { NSLog(@"->%@",[[fileArray objectAtIndex:i] getfileName] ); } } UILabel *tem1UILabel=(UILabel*)[cell.contentView viewWithTag:row+15000]; NSString *s1=[[NSString alloc] initWithFormat: [[fileArray objectAtIndex:row] getfileName] ]; NSLog(@"--->%@",s1 ); tem1UILabel.text=s1; [s1 release]; UILabel *tem2UILabel=(UILabel*)[cell.contentView viewWithTag:row+16000]; NSString *s2=[[NSString alloc] initWithFormat: [[fileArray objectAtIndex:row] getfileDate] ]; tem2UILabel.text=s2; [s2 release]; UILabel *tem3UILabel=(UILabel*)[cell.contentView viewWithTag:row+17000]; NSString *s3=[[NSString alloc] initWithFormat: [[fileArray objectAtIndex:row] getfileSize]]; tem3UILabel.text=s3; [s3 release]; return cell; } I set the breakpoint at AAA and found that when I loaded folder F, my application did stop at the breakpoint. But I have removed all cells in atableview before call 'reloadData'. I checked the content of fileArray which is the data source of atableview and found that everything is correct except the display on atableview. Welcome any comment. Thanks interdev

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  • OBJ-C: Call an instance of core-plot graph from separate view controller

    - by Kevin
    I'm using a view controller i.e. ViewController:UIViewController and have another class GraphViewController:UIViewController . How do I call an instance of GraphViewController and place it into my ViewController? I am currently trying to call the plot within my ViewController directly, but I want to make the graph modular so I don't have to copy code if I use the same graph again. ViewController has methods -(void) refreshGraph; //Inhereted Methods -(NSUInteger)numberOfRecordsForPlot:(CPPlot *)plot; -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index; How do I move these methods to a separate class and then call it to get the same plot in my ViewController? I am sure there must be a thread on this somewhere but I can't seem to find it.

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  • Jetty startup delay

    - by Tauren
    I'm trying to figure out what would be causing a 1 minute delay in the startup of Jetty. Is it a configuration problem, my application, or something else? I have Jetty 7 (jetty-7.0.1.v20091125 25 November 2009) installed on a server and I deploy a 45MB ROOT.war file into the webapps directory. This is the only webapp configured in Jetty. I then start Jetty with the command: java -DSTOP.PORT=8079 -DSTOP.KEY=mystopkey -Denv=stage -jar start.jar etc/jetty-logging.xml etc/jetty.xml & I get two lines of output right after doing this: 2010-03-07 14:20:06.642:INFO::Logging to StdErrLog::DEBUG=false via org.eclipse.jetty.util.log.StdErrLog 2010-03-07 14:20:06.710:INFO::Redirecting stderr/stdout to /home/zing/jetty-distribution-7.0.1.v20091125/logs/2010_03_07.stderrout.log When I press the enter key, I get my command prompt back. Looking at the log file (logs/2010_03_07.stderrout.log), I see the following at the beginning: 2010-03-07 14:08:50.396:INFO::jetty-7.0.1.v20091125 2010-03-07 14:08:50.495:INFO::Extract jar:file:/home/zing/jetty-distribution-7.0.1.v20091125/webapps/ROOT.war!/ to /tmp/Jetty_0_0_0_0_8080_ROOT.war___.8te0nm/webapp 2010-03-07 14:08:52.599:INFO::NO JSP Support for , did not find org.apache.jasper.servlet.JspServlet 2010-03-07 14:09:51.379:INFO::Set web app root system property: 'webapp.root' = [/tmp/Jetty_0_0_0_0_8080_ROOT.war___.8te0nm/webapp] 2010-03-07 14:09:51.585:INFO::Initializing Spring root WebApplicationContext INFO - ContextLoader - Root WebApplicationContext: initialization started INFO - XmlWebApplicationContext - Refreshing Root WebApplicationContext: startup date [Sun Mar 07 14:09:51 PST 2010]; root of context hierarchy ... Notice the 1 minute long pause between the 3rd and 4th lines. What is Jetty doing at this point? What other things could be going on? It doesn't even look like it has started my Spring initialization yet. Note that I checked my /tmp directory to see if it was simply the time to unpack my war file, but the file had been completely unpacked even at the start of this 1 minute delay.

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  • UINavigationController placement problem

    - by Chonch
    Hey, I'm having this problem and I can't seem to figure out why! I want to use a UINavigationController, but I don't want to use it through out the entire application. So, in the UIViewController I was to add it to, I define: UINavigationController *navigationController; and the @property, @synthesize and dealloc. In the viewDidLoad method, I add: navigationController = [[UINavigationController alloc] init]; navigationController.navigationBar.barStyle = UIBarStyleBlack; and when the relevant UIViewController is loaded, I add: [navigationController pushViewController:viewController animated:NO]; and make the old view disappear and the UINavigationController's view to appear. Everything works fine except that the navigation bar appears about 20pixels too low (dragging the entire view down and out of the screen). If I set the UINavigationController's view frame parameter manually to start at 0,0, it jumps there, but only after about a second, so that you can see the navigation bar starting at a certain location and only then jumping to another (and it is ugly!). I have done the exact same thing in the past and had no problem with it. Does anyone know what may cause this? Thanks,

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  • Rotation of a single UIViewController in a UITabBarController

    - by burki
    Hi! I have a UITabBarController with four UINavigationControllers. Well, I want to enable the rotation just for one of the four UIViewControllers. According to Apple's doc you shouldn't subclass UITabBarController, so I don't wanna do that. All UIViewControllers should support the same orientations that it works, but that's not what I want. How can the single UIViewController, which should support the rotation, detect that the device has changed its orientation? Because unless all the UIViewControllers added to the UITabBarControllers support the same orientation, the methods of the UIViewController for managing the rotation aren't called. I've been searching now for a while, but I haven't already found a pleasant answer. I guess a lot of developers wonder how to manage that. I already thank you for your answer.

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  • how can I translate a NSString to NSData? And the data has the same content as the string

    - by someonemaybe
    NSString * theString=@"e88d"; NSData * data; // something I should implement NSLog(@"%@", theString); NSLog(@"%@",[data description]); I want the results of the two printings are the same. AES encryption and decryption: (1).The server: if the plaintext is :@"abcd"; the AES encrypted data(NSData data type) is :"d882830c dc892036 4345839f 13c7516a"; (2).in my local app, my code is : NSData*data=[NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://..."]]; NSString * mystring= [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; However, to decrypt data successfully, I must got a data(NSData date type) which equals to "d882830c dc892036 4345839f 13c7516a".But it is the mystring (NSString data type) not the data(NSData data type) that equals to the right value. the encryption and decryption function both need a data(NSData data type) as input datas. (NSData*)AES128EncryptWithKey:(NSString*)key; (NSData*)AES128DecryptWithKey:(NSString*)key;

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