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• iphone - creating a reference to a MPMoviePlayerController

  - by Mike

  At some point in my code I am creating a MPMoviePlayerController object and playing it. As I need to reference this object at some other methods in my code that runs asynchronously, I need to store a pointer to the movie object etc., so I can use that. Declaring MPMoviePlayerController * myMovie on the header file is out of question, because the compiler will give me an error saying "expected specifier-qualifier-list before 'MPMoviePlayerController'". If it was a view I could do something like [self.view viewWithTag:99]; to get the object, but the MPMoviePlayerController does not allow this. How can I obtain the movie object or store a reference to it, so I can call the object in other methods? thanks for any help.

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• iphone - UITapGestureRecognizer problem

  - by Mike

  I have two UIImageViews one as subview of the other. The subview is smaller and is centered on the screen. Both have UITapGestureRecognizer assigned and both were intended to respond to single taps. A single tap on the main view (= the area outside the subview) is fine, but a tap inside the subview is seen as the main view as a tap too. How can I have this to work independently? both views have setCancelsTouchesInView and setDelaysTouchesEnded set to NO and both have the same delegate (yes, I need to have the same delegate and cannot change that). How may I force the main view to ignore any tap on the area that belongs to its subview? thanks for any help.

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• iphone - UIImagePickerController compressing video?

  - by Mike

  I am using a UIImagePickerController to get a video from the library. So, I am using this picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; picker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType]; picker.allowsEditing = NO; picker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie]; [self presentModalViewController:picker animated:YES]; [picker release]; As soon as I select the video and tap on CHOOSE, I see the message "Compressing Video" and it stays ages stuck... I waited for 5 minutes and the message was still there. Is there a way to prevent this? Why I cannot simply take a copy of the move as it is. I do not want any compressing... is there a way to solve this? thanks.

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• iphone - keeping the last frame of a frame animation visible

  - by Mike

  I have this code UIImageView *sequence = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"balao_surge0.png"]]; NSMutableArray *array = [[NSMutableArray alloc] init] ; for (int i=0; i<30; i++) { UIImage *oneImage = [UIImage imageNamed:[NSString stringWithFormat:@"balao_surge%d.png",i]]; [array addObject:oneImage]; } sequence.animationImages = array; sequence.animationDuration = 2.0; sequence.animationRepeatCount = 1; [umaVista addSubview:sequence]; [sequence release]; sequence.startAnimating; The animation plays fine, but after the last frame is shown, it vanishes. I would like to make it stay visible, that is, make the animation stop on the last frame. Is there any way to do that? thanks for any help.

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• iphone - UIWebView Problem

  - by g.revolution

  Hi , I have created a nib file and added a UIWebView. i created an IBOutlet and attached web view with that outlet. till here everything is fine . now when i set the delegate of that webview to self in ViewDidLoad, and implement two of its delegate methods. the application crashes, i m not writing anything in the methods , i have just implemented and the application is crashing .... what could b the problem ? is there any problem ???

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• iphone - making the CGAffineTransform permanent

  - by Mike

  I am banging my head on the wall here due to this problem: When I create a UIImageView this view has a certain orientation and size. Lets call this state "A". This view responds to taps. It can be dragged around the screen. At some point in the code I apply a CGAffineTransform to the view. Does not matter if the affine is a scale, a rotation, a translation or a combination of all. Does not matter also if the transform is absolute or relative. Not to mention the device can change its orientation and the view is autorotated to the correct orientation (that we can cay is a kind of rotation or transformation applied to the view). The problem is: the moment I touch that object or try to animate its transparency or any other parameter, it "remembers" the state "A" and does all animations from that state, not from current state. If I simply touch the view, it returns instantly to state "A". The code is not doing it by itself. It is an annoying "gift" from Apple. How to I make a view assume its current state of transformations as the reset or initial state? In other words, how do I make a view forget its past transformations or states? The only way I know is recreating the view, but this is a ridiculous way of doing this. Is there any way to make this work as I described? thanks

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• UIImages not displaying in TableView on iPhone, but working in Simulator

  - by Graeme

  Hi, I have a UITable View that displays an image in the left hand side of the table cell, and it works fine in the simulator. Only problem is, once I ran it on my device no images appear. It's just a blank white space. Have checked that images are added to resource folder for build (which they are) and that capitals etc. match (which they do). Any ideas? Thanks. Code to display images: cell.imageView.layer.masksToBounds = YES; cell.imageView.layer.cornerRadius = 5.0; UIImage *image = [UIImage imageNamed:[[dog types] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];; if ( image ) { cell.imageView.image = [image imageScaledToSize:CGSizeMake(50, 50)]; }

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• Core Location in iPhone Simulator 3.2 (iPad)

  - by choise

  So, i'm trying to port my app to iPad. I'm using CoreLocation. Apple says the iPad does have Location: Wi-Fi Digital compass Assisted GPS (Wi-Fi + 3G model) Cellular (Wi-Fi + 3G model) so it should be possible to get the position of my ipad (at least with 3g model) about 3km radius would be enought. but it doesnt work in simulator (3.2 ipad) (running 3.1.3 in simulator simulates me cupertino). is there a way to get the position in simulator (3.2 ipad) ? i live in germany and here the ipad isnt released yet, so i cannot test it on my device. thanks!

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• iPhone UITableViewCell selectionStyle when editing?

  - by marchinram

  Hello, I know I can change the selectionStyle of a UITableViewCell to make it highlight blue or grey when selected, but how can I change this when in editing mode. I dont want the cell to normally by selectable, only when in editing mode, like the Alarm part of the Clock application. Thanks

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• iPhone - strange error when testing on simulator

  - by lostInTransit

  Hi I was testing my app on the simulator when it crashed on clicking a button of a UIAlertView. I stopped debugging there, made some changes to the code and built the app again. Now when I run the application, I get this error in the console Couldn't register com.myApp.debug with the bootstrap server. Error: unknown error code. This generally means that another instance of this process was already running or is hung in the debugger.Program received signal: “SIGABRT”. I tried removing the app from the simulator, doing a clean build but I still get this error when I try to run the app. Can someone please let me know what I should do to be able to run the app on my simulator again. Thanks.

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• Edit, select value from UITableView on the iPhone

  - by Anthony D

  I have a UITableView with a list of names, representing server configurations. I want the user to be able to select a server configuration, add a server config, edit a server config, or just cancel out of the view and return to the main view. I'm having a hard time trying to figure out how to achieve all of that functionality in this view. To select, the user should be able to just tap the server config name and a check will appear next to the name then the user is taken back to the main view automatically (or use a save button instead?). To edit the server config, I would also like the user to be able to tap the server config name and be taken to a detail screen where changes can be made. How can I accomplish both since I want both to be done by tapping the server name (row)? Right now the cancel button seems out of place since the screen is accessed via a UINavigationController. Any suggestions?

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• Edite, select value from UITableView on the iPhone

  - by Anthony D

  I have a UITableView with a list of names, representing server configurations. I want the user to be able to select a server configuration, add a server config, edit a server config, or just cancel out of the view and return to the main view. I'm having a hard time trying to figure out how to achieve all of that functionality in this view. To select, the user should be able to just tap the server config name and a check will appear next to the name then the user is taken back to the main view automatically (or use a save button instead?). To edit the server config, I would also like the user to be able to tap the server config name and be taken to a detail screen where changes can be made. How can I accomplish both since I want both to be done by tapping the server name (row)? Right now the cancel button seems out of place since the screen is accessed via a UINavigationController. Any suggestions?

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• iphone - button outside MPMoviePlayerController window not responding

  - by Mike

  I have created a MPMoviePlayerController to play a movie. As the movie likes to play landscape in full screen, when the movie is about to play, I grab its window and resize it to be smaller. At the same time, I add a view to the movie's window and this view contains several buttons, that are supposed to be around the movie. As the movie's window is reduced in size, I have to scale the buttons' view up, so the buttons do not reduce in size. I ended with this What you can see here is this: four buttons (green rectangles), the reduced movie's window and the application's window, that now is visible because the movie's window was reduced. The problem is that the buttons just work if you click on their regions inside the movie's window (A). If you click them on the region outside (B) they don't work. WHen you click on B, TouchesMoved on the main view controller receives the touch and the button doesn't do its action. How can this be solved? thanks for any help

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• iPhone - move above buttons

  - by Mike

  I have a video at 320x240 on the middle of the screen area. Around this video, several buttons that will call different actions. When the MPMoviePlayerController is fired and the movie starts playing the buttons are behind the video and I cannot click them. I see them but they are not clickable. I think the video window is covering the whole area. How can I solve that?

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• iPhone - move above buttons

  - by Mike

  I have a video at 320x240 on the middle of the screen area. Around this video, several buttons that will call different actions. When the MPMoviePlayerController is fired and the movie starts playing the buttons are behind the video and I cannot click them. I see them but they are not clickable. I think the video window is covering the whole area. How can I solve that?

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• iphone - presenting an alertview with the right orientation

  - by Mike

  I have to present an alertview when my app starts. My app supports both landscape modes. Despite the landscape mode the device is when the app starts the alertview always shows in portrait. I have tried to use the accelerometer to detect the interface orientation before the orientation notification and I have the correct orientation 2 seconds before the alertview showing. Then, I use this code to set the status bar to a different orientation, hoping the alertview will follow... [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight]; or left, depending on the landscape mode. Nothing works. Is there a way to force the alertview to respect the orientation? The point here is this: I cannot set one landscape orientation in particular for the status bar, I have to detect the orientation the device is on and then set the status bar orientation. thanks for any help.

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• iphone - getting the button id in a segmented control

  - by Mike

  I am trying to create something that uses the idea of the UIPopOverController, I mean, have that speech bubble anchor pointing to the button who triggered the method. The problem is that I am using a UISegmentedControl... How do I get the id of the button that was tapped on a UISegmentedControl, so I can determine its position and generate the anchor? thanks for any help.

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• iPhone application-Memory handling issues

  - by Vin

  Hi All, I am having some memory management issues in my app. Maybe someone may help me out here. 1) While checking for leaks in intruments, when I deploy and run the app on device, the virtual memory utilized, starts from 50 MB(even though i've just launched the app and am on the first screen). My resources contribute to 2.6 MB of it and I don't know what is contributing for the rest. What is the ideal utilization of virtual memory for an app? 2) In certain screen of the app, user is allowed to click a picture from the camera. In Instruments, I observe that virtual memory utilization jumps around 20MB, on the invocation of camera. Is it normal and can it be decreased? Looking forward to hear a reply soon. Thanks in advance

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• iphone - using a UISwitch

  - by Mike

  I need to implement a view where I need the user to answer several questions using YES or NO. I thought of using a UISwitch but as far as I see it does not allows replacing the ON/OFF messages it shows with YES/NO. Am I wrong? I thought of implementing a segmented control with 2 buttons but this is like using a cannon to kill a fly... Any suggestions on how to do that? thanks

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• iPhone - how to pass an object to a button action

  - by Mike

  I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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• iPhone - how to pass an object to a button action

  - by Mike

  I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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• iphone - mutableArray cannot store nil objects

  - by Mike

  I have a mutable array that is retained and storing several objects. At some point, one object may become nil. When this happens the app will crash, because arrays cannot have nil objects. Imagine something like [object1, object2, object3, nil]; then, object2 = nil [object1, nil, object3, nil]; that is not possible because nil is the end of array marker. So, how can I solve that? thanks for any help.

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• view .txt, .pdf files in iphone

  - by Ekra

  Hi friends, I am getting the data of the file from network and receiving it in NSData(not saving it any were). I want to view the files without saving it anywere. I tried it with UIWebView but with no success [webView loadData:data_ MIMEType:@"text" textEncodingName:@"UTF-8" baseURL:nil]; Any hint in right direction would be highly appreciated.

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• how to programmatically display version of target in iphone app/xcode

  - by slim

  How can i programmatically get the value in the image below in the Properties window of the target of my xcode project. I want to display this in the splash screen of my app so i know which version people are using? Hope this makes sense what i'm asking.

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• iphone - testing if an object exists

  - by Mike

  I have several apps in my app that can become nil at some point and I have methods that in theory are used to put these objects to nil. But, if I try to put to nil an object that does not exist, the app will crash. for example... [object1 release]; object1 = nil; //... and after that [object removeFromSuperview]; // this will crash Then I thought, why not testing to see if the object exists before removing... if (object1 != nil) [object removeFromSuperview]; // this will crash too, because object1 cannot be tested for nil because it does not exist How can I check if the object exists before testing if it is nil? something as if (object exists( { if(object != nil)) [object removeFromSuperview) } is this possible?

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