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  • UIImagePickerController Causes my app to crash!

    - by Flafla2
    In my app, a user can select an image, change the picture of a UIImageView to the new imge, and save the image to NSUserDefaults using NSKeyedArchiver. When the user selects the image the app immediately crashes! Here is my code - - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissModalViewControllerAnimated:YES]; if ([[NSUserDefaults standardUserDefaults] integerForKey:@"PictureKey"] == 1) { UIImage *previmage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [prevbutton setImage:previmage]; NSData *previmagedata = [NSKeyedArchiver archivedDataWithRootObject:previmage]; [[NSUserDefaults standardUserDefaults] setObject:previmagedata forKey:@"PrevImage"]; } else if ([[NSUserDefaults standardUserDefaults] integerForKey:@"PictureKey"] == 2) { UIImage *nextimage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [nextbutton setImage:nextimage]; NSData *nextimagedata = [NSKeyedArchiver archivedDataWithRootObject:nextimage]; [[NSUserDefaults standardUserDefaults] setObject:nextimagedata forKey:@"NextImage"]; }else { UIImage *optionsimage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [moreoptionsbutton setImage:optionsimage]; NSData *optimagedata = [NSKeyedArchiver archivedDataWithRootObject:optionsimage]; [[NSUserDefaults standardUserDefaults] setObject:optimagedata forKey:@"OptionsImage"]; } } Thanks in advance!

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  • [iPhone] Objective-C : UIScrollView manual paging

    - by Daniel
    Hi Folks! I want to use the scrollview as something like a picker in horizontal mode. The scrollview holds up to seven subviews. Each subview represents a value. Always three views are visible and the one in the middle is the selected one. Scrollview visible at start: __ | V1 | V2 Scrollview set to view/value two: V1 | V2 | V3 Scrollview set to last value: V2 | V3 | __ The real problem I have got is the "pagingEnabled" flag. If pagingEnabled is set to YES the scrollview pages always three subviews/values instead of only one. If pagingEnabled is set to NO the scrollview does not clinch. Is there a nice solution for my problem? Thanks a lot, Dan ;)

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  • Passing html parameters to server odd problem

    - by StealthRT
    Hey all i am having a weird problem with sending data back to my server. This is the code i am using: NSString *theURL =[NSString stringWithFormat:@"http://www.xxx.com/confirm.asp?theID=%@&theName=%@&empID=%@&theComp=%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID]; NSLog(@"%@,%@,%@,%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID); NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:theURL]]; [request setHTTPMethod:@"POST"]; NSError *error; NSURLResponse *response; NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding]; if ([data isEqualToString:@"Done"]) I can run the code from the browser and it works just fine using the data i got from the NSLog output. The NSLog output for each value is correct. But for some reason when i put a break on the IF ([data isEqualToString:@"Done"]) it has no return value. I checked each value for what it was sending (and again, it was correct in the NSLog output) and i found that the value "theID" said "Out of scope". Although, again, the NSLog had the value in it correctly? So i searched the forum and found a simular problem. I took their advice and added "RETAIN" to the "theID" value like so: theID = [customObjInstance TID]; [theID retain]; However, that did not solve the issue... Here is the console NSLog output: [Session started at 2010-04-11 01:31:50 -0400.] wait_fences: failed to receive reply: 10004003 wait_fences: failed to receive reply: 10004003 nbTxt(5952,0xa0937500) malloc: *** error for object 0x3c0ebc0: double free *** set a breakpoint in malloc_error_break to debug 2010-04-11 01:32:12.270 nbTxt[5952:207] 5122,Rob S.,5122,NB010203 The NSLog values i am sending is the last line "5122,Rob S.,5122,NB010203" Any help would be great :o) David

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  • iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

    - by Adam Eberbach
    All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes has a method xxxxWithCapacity, like [NSMutableArray arrayWithCapacity:0]. I often use zero as the argument because it seems a better choice than guessing wrongly how many objects might be added. Is there some performance advantage to creating a collection with capacity for enough objects in advance? If not why isn't the function something like + (id)emptyArray?

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  • Download And Install apk from a link.

    - by rayman
    Hi, I`am trying to download and install an apk from some link, but for some reason i get an exception. I have one method downloadfile() which downloading the file and a call to and installFile() method, which supposed to install it in the device. some code: public void downloadFile() { String fileName = "someApplication.apk"; MsgProxyLogger.debug(TAG, "TAG:Starting to download"); try { URL u = new URL( "http://10.122.233.22/test/someApplication.apk"); try { HttpURLConnection c = (HttpURLConnection) u.openConnection(); try { c.setRequestMethod("GET"); c.setDoOutput(true); try { c.connect(); FileOutputStream f = context.openFileOutput(fileName, context.MODE_WORLD_READABLE); try { InputStream in = c.getInputStream(); byte[] buffer = new byte[1024]; int len1 = 0; int totsize = 0; try { while ((len1 = in.read(buffer)) > 0) { totsize += len1; f.write(buffer, 0, len1);// .write(buffer); } } catch (IOException e) { e.printStackTrace(); } f.close(); MsgProxyLogger.debug(TAG, TAG + ":Saved file with name: " + fileName); InstallFile(fileName); } catch (IOException e) { e.printStackTrace(); } } catch (IOException e) { e.printStackTrace(); } } catch (ProtocolException e) { e.printStackTrace(); } } catch (IOException e) { e.printStackTrace(); } } catch (MalformedURLException e) { e.printStackTrace(); } } and this is the install file method: private void InstallFile(String fileName) { MsgProxyLogger.debug(TAG, TAG + ":Installing file " + fileName); String src = String.format( "file:///data/data/com.test/files/", fileName); Uri mPackageURI = Uri.parse(src); PackageManager pm = context.getPackageManager(); int installFlags = 0; try { PackageInfo pi = pm.getPackageInfo("com.mirs.agentcore.msgproxy", PackageManager.GET_UNINSTALLED_PACKAGES); if (pi != null) { MsgProxyLogger.debug(TAG, TAG + ":replacing " + fileName); installFlags |= PackageManager.REPLACE_EXISTING_PACKAGE; } } catch (NameNotFoundException e) { } try { // PackageInstallObserver observer = new PackageInstallObserver(); pm.installPackage(mPackageURI); } catch (SecurityException e) { //!!!!!!!!!!!!!here i get an security exception!!!!!!!!!!! MsgProxyLogger.debug(TAG, TAG + ":not permission? " + fileName); } this is the exception details: "Neither user 10057 nor current process has android.permission.INSTALL_PACKAGES". and i have set in my main app that permission in the manifest. anyone has any idea? thanks, ray.

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  • Adding a subview to UITableCellView

    - by hanno
    I want to add a subview to my UITableCellView subclass. However, non of the provided views in the class seem to be able to do exactly what I was looking for. I basically want to add my own background view, filling the whole cell. However, if I replace the backgroundView, the style from the grouped table view layout isn't displayed anymore. If I add a subview to backgroundView, the subview is not shown at all. If I add a subview to the contentView, I can't draw behind the accessory icon. What am I missing?

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  • Reflection to access advanced telephony features

    - by Tyler
    I am trying to use reflection to access some advanced features of the telephony api not published. Currently I am having trouble instantiating a serviceManager object that is needed to get the "phone" service as a binder which I can then use to instantiate a telephony object which is needed to make a call, end call, etc... currently when I make the call serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() }); it returns a nullPointerException. I believe this has to due with creating a new Binder instead of sending the appropriate binder (which I am unsure of which one is appropriate) public void placeReflectedCall() throws ClassNotFoundException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, InstantiationException { String serviceManagerName = "android.os.IServiceManager"; String serviceManagerNativeName = "android.os.ServiceManagerNative"; String telephonyName = "com.android.internal.telephony.ITelephony"; Class telephonyClass; Class telephonyStubClass; Class serviceManagerClass; Class serviceManagerStubClass; Class serviceManagerNativeClass; Class serviceManagerNativeStubClass; Method telephonyCall; Method telephonyEndCall; Method telephonyAnswerCall; Method getDefault; Method[] temps; Constructor[] serviceManagerConstructor; // Method getService; Object telephonyObject; Object serviceManagerObject; String number = "1111111111"; telephonyClass = Class.forName(telephonyName); telephonyStubClass = telephonyClass.getClasses()[0]; serviceManagerClass = Class.forName(serviceManagerName); serviceManagerNativeClass = Class.forName(serviceManagerNativeName); Method getService = // getDefaults[29]; serviceManagerClass.getMethod("getService", String.class); Method tempInterfaceMethod = serviceManagerNativeClass.getMethod( "asInterface", IBinder.class); // this does not work serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() }); IBinder retbinder = (IBinder) getService.invoke(serviceManagerObject, "phone"); Method serviceMethod = telephonyStubClass.getMethod("asInterface", IBinder.class); telephonyObject = serviceMethod .invoke(null, new Object[] { retbinder }); telephonyCall = telephonyClass.getMethod("call", String.class); telephonyEndCall = telephonyClass.getMethod("endCall"); telephonyAnswerCall = telephonyClass.getMethod("answerRingingCall"); telephonyCall.invoke(telephonyObject, number); } Thanks in advance for any answers.

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  • iPhone: How to read contents from UIWebView XML Document?

    - by David Conlisk
    Hi all. In my iPhone app I'm using a UIWebView to allow the user to browse to an XML document on a website. When the user has found the xml document they want, they click a button below the UIWebView. Then I try to read the contents of the XML document from the UIWebView using: NSString *xml = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByTagName('rootXmlNodeName')[0].innerHTML"]; This doesn't work for me for XML documents. It works fine in a HTML page, e.g. using "html" for the rootXmlNodeName in the code snippet above. Any ideas? Thanks in advance!

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  • Scrollable div on iPhone without using 2 fingers?

    - by Brad Parks
    Hi there; I've got a UIWebView embedded in my iPhone app, and I'd like to keep a locked header and footer DIV on the page at all times, with a scrollable center DIV. I know that I could do this using a header/footer that are UIView controls, but I want the header and footer to be HTML divs, as a pure HTML/JS/CSS solution will be easier to port to Android/PalmPre/AdobeAir, which is going to be on my todo list relatively soon. I can do this using techniques like the one mentioned here: http://defunc.com/blog/?p=94 But this requires that the user use 2 fingers to scroll the div, which is not satisfactory to me... Any suggestions on how to do this? Thanks, Brad

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  • pushViewController causes memory leak

    - by hookjd
    The Leaks application tells me that the following function is causing a memory leak and I can't figure out why. -(void)viewGameList { GameListController *gameListViewController = [[GameListController alloc] initWithNibName:@"GameListController" bundle:nil]; gameListViewController.rootController = self; [self.navigationController pushViewController:gameListViewController animated:YES]; [gameListViewController release]; } It tells me that this line causes a 128 byte memory leak. [self.navigationController pushViewController:gameListViewController animated:YES]; Am I missing something obvious?

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  • Resize images in UIWebView to viewport size

    - by atz
    I'm displaying HTML with some images inside a UIWebView in my iPhone App. When the images are wider than the viewport of the iPhone I get horizontal scrollers which I don't want because its mostly about the text not the images. Is there a way to resize images displayed inside the UIWebView according to the width (best: even if the device is rotated)?

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  • How to I pass @selector as a parameter?

    - by erotsppa
    For the method [NSThread detachNewThreadSelector:@selector(method:) toTarget:self withObject:(id)SELECTOR]; How do I pass in a @selector? I tried casting it to (id) to make it compile but it crashes in runtime. More specifically, I have a method like this +(void)method1:(SEL)selector{ [NSThread detachNewThreadSelector:@selector(method2:) toTarget:self withObject:selector]; } it crashes, how do I pass in the selector without crashing? So that the new thread can call the selector when the thread is ready?

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  • iPhone OpenGL ES missing functions should be there - glBlendFuncSeparate etc

    - by quixoto
    I'm using OpenGL ES 1.1 on the iPhone, and I'd like to use the following functions: glBlendFuncSeparate glBlendColor With their related constants. These didn't exist in early iPhone GL implementations, but according to this page: http://developer.apple.com/iphone/library/releasenotes/General/iPhone30APIDiffs/index.html they should be there in 3.0+, which I'm building for. But I'm getting "implicit definition" warnings. What do I need to do to get those functions? Thanks!

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  • Use VersionControlExt.Explorer outside Visual Studio

    - by Ian
    Hi All, I'm developing a TFS tool to assist the developers in our company. This said tool needs to be able to "browse" the TFS server like in the Source Control Explorer. I believe that by using VersionControlExt.Explorer.SelectedItems, a UI will pop-up that will enable the user to browse the TFS server (please correct me if I'm wrong). However, VersionControlExt is only accessible when developing inside Visual Studio (aka Plugin). Unfortunately, I am developing a Windows Application that won;t run inside VS. So the question is, Can I use VersionControlExt outside of Visual Studio? If yes, how? Here's an attempt on using the Changset Details Dialog outside of Visual Studio string path = System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location); Assembly vcControls = Assembly.LoadFile(path + @"\Microsoft.TeamFoundation.VersionControl.Controls.dll"); Assembly vcClient = Assembly.LoadFile(path + @"\Microsoft.TeamFoundation.VersionControl.Client.dll"); Type dialogChangesetDetailsType = vcControls.GetType("Microsoft.TeamFoundation.VersionControl.Controls.DialogChangesetDetails",true); Type[] ctorTypes = new Type[3] {vcClient.GetType("Microsoft.TeamFoundation.VersionControl.Client.VersionControlSever"), vcClient.GetType("Microsoft.TeamFoundation.VersionControl.Client.Changeset"), typeof(System.Boolean)}; ConstructorInfo ctorInfo = dialogChangesetDetailsType.GetConstructor(ctorTypes); Object[] ctorObjects = new Object[3] {VersionControlHelper.CurrentVersionControlServer, uc.ChangeSet, true}; Object oDialog = ctorInfo.Invoke(ctorObjects); dialogChangesetDetailsType.InvokeMember("ShowDialog", BindingFlags.InvokeMethod, null, oDialog, null);

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  • NSManagedObjectContext returning nil iphone

    - by harekam_taj
    Hey, I created a class ServerModel for my app and in it I want to make a connection to the Sqlite database I have on the device, but anytime I go to check my NSManagedObjectContext it is returning null. While the same work well in my other class RootViewController In my appdelegate I am doing rootViewController.managedObjectContext = self.managedObjectContext; serverModel.managedObjectContext = self.managedObjectContext;

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  • where did all the templates in xcode go?

    - by Ayrad
    After the recent update in xcode I seem to have lost all the template for cocoa touch and iphone templates. Under Cocoa Touch Classes in the new file dialog, I only have 3 choices: Objective-C class Objective-C test case class and UIViewController subclass where did the others go? UITableView, UInavigation etc.? I am running xcode 3.1.3. Thanks!

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  • Launch Android Default Email application through btn click

    - by Rony
    Hello Experts, I posted this query here, but as usual, noone knows / no replies http://www.anddev.org/viewtopic.php?p=41513#41513 How can I launch the android default mail application through the click of a button in my code? I would also like to know, how this can be done to launch the contacts list also. Any help in this regard is appreciated, Regards, Rony

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  • iPhone - access location information from a photo.

    - by bpapa
    Is it possible, in an iPhone app, to extract location information (geocode, I suppose it's called) from a photo taken with the iPhone camera? If there is no API call to do it, is there any known way to parse the bytes of data to extract the information? Something I can roll on my own?

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  • What's the proper way to setup different objects as delegates using Interface Builder?

    - by eagle
    Let's say I create a new project. I now add two text fields to the view controller in Interface Builder. I want to respond to delegate events that the text fields create, however, I don't want to have the main view controller to act as the delegate for both text fields. Ideally I want a separate file for each text field that acts as the delegate. Each of these objects also needs to be able to interact with the main view controller. My question is how I would set this up and link everything correctly? I tried creating a new class that inherits from NSObject and implements UITextFieldDelegate. I then added an instance variable called "viewController" of the same type of my view controller and marked it with IBOutlet (this required me to add #import "myViewcontroller.h"). I then went to Interface Builder and opened up my view controller which contains the two edit boxes. I added an NSObject to the form and changed it's type to be of the new class I created. I set its viewController property to the File's Owner, and set one of the textbox's delegate properties to point to this new object I created. Now when I run the program, it crashes when I touch the text box. It gives the error EXC_BAD_ACCESS. I'm guessing I didn't link stuff correctly in IB. Some things I'm not sure about which might be the problem: Does IB automatically know to create an instance of the class just by placing the NSObject in the ViewController? Can it properly assign the viewController property to an instance of itself even though it is creating itself at the same time?

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