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  • How can I link in both remote and local assets into a webview?

    - by Greg
    I'm loading HTML-formatted content into my app from a web service, then plugging that into a local HTML template that lives within the app. Now, I need to set the UIWebView's BaseURL to point at the remote server so that all relative image links will load. However, I'm also trying to link in some local assets (CSS, JavaScript). Thus far, I have not found any documentation on how to link in local assets without relying on the UIWebView's baseURL. I've tried injecting the absolute file path of my CSS and JS into my HTML template, but it hasn't worked... I don't know if that means that it doesn't work, or if I'm just doing it wrong. Has anyone ever run into this scenario, and if so, how did you address it? Thanks in advance, I really appreciate any tips!

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  • Draw rectangle using Core Graphics with live preview

    - by mikawber
    I'm creating a simple drawing application and would like some help with drawing rectangles based on the user's touch events. I'm able to draw a rectangle using Core Graphics from the point in touchesBegan to the point in touchesEnded. This rectangle is then displayed once the touchesEnded event is fired. However, I would like to be able to do this in a 'live' fashion. Meaning, the rectangle is updated as the user drags their finger. Is this possible? Any help would be greatly appreciated, thank you!

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  • Callback from static library

    - by MortenHN
    I think this should be simple, but im having a real hard time finding information about this topic. I have made a static library and have no problem getting the basics to work. But im having a hard time figuring out how to make a call back from the static library to the main APP. I would like my static library to only use one header as front, this header should contain functions like: requestImage:(NSString *)path; requestLikstOfSomething:(NSSting *)guid; and so on.. These functions should do the necessary work and start a async NSURLConnection, and call back to the main application when the call have finished. How do you guys do this, what are the best ways to callback from a static library when a async method is finished? should i do this with delegates (is this possible), notifications, key/value observers. I really want to know how you guys have solved this, and what you regard as the best practices. Im going to have 20-25 different calls so i want the static library header file to be as simple as possible preferable only with a list of the 20-25 functions. UPDATE: My question is not how to use delegate pattern, but witch way is the best to do callbacks from static librarys. I would like to use delegates but i dont want to have 20-25 protocol declarations in the public header file. I would prefer to have only one function for each request. Thanks in advance. Best regards Morten

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  • Does Quartz2D test intersection of rect by line before drawing it.

    - by ddnv
    I'm drawing a big scheme that consist of a lot of lines. I do it in the drawRect: method of UIView. The scheme is larger than the layer of view and I check each line and draw it only if it intersects the visible rect. But at one moment I thought, should I do this? Maybe Quartz is already doing this test? So the question is: When I use function CGContextAddLineToPoint() does the Core Graphics tests this line for intersection with layer rect or it just draw it anyway?

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  • How can I change my career from windows server admin to software developer?

    - by hyder
    well am an Engineering Graduate in Telecommunication Engineering... I got into Server Support job soon finishing my college ,as at that time it was a recession period ... I have total exp of 2 years in windows server support but due to multiple shifts environment I want to change my profile into software line. Please suggest what would be best for me to take next step.. what exactly course\certification I should do to change my profile as software Developer. Am interested in making my career in software ..please advise as I am in big confusion and not able to work with full satisfaction!! Thank you....

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  • Pickerview as a Subview

    - by Cancel
    Hi all. I am trying to create a Dialog Box in which contains a Pickerview. I can get it to work without the Subview tied around it but I always end up with an Uncaught error. Any help?

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  • A question related to back button

    - by user217572
    I'm doing code for state maintainance So what happens that ,my currnet view will be appear after pressing homme now in this view i want to add backbutton in normal condition i'm adding button like this, [self navigationItem].title = NSLocalizedString(@"login_title",@""); UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"back_button",@" ") style:UIBarButtonItemStylePlain target:self action:@selector(done)]; [self.navigationItem setHidesBackButton:YES animated:YES]; self.navigationItem.leftBarButtonItem = backItem; [backItem release];

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  • Core Data Predicates with Subclassed NSManagedObjects

    - by coneybeare
    I have an AUDIO class. This audio has a SOUND_A subclass and a SOUND_B subclass. This is all done correctly and is working fine. I have another model, lets call it PLAYLIST_JOIN, and this can contain (in the real world) SOUND_A's and SOUND_B's, so we give it a relationship of AUDIO and PLAYLIST. This all works in the app. The problem I am having now is querying the PLAYLIST_JOIN table with an NSPredicate. What I want to do is find an exact PLAYLIST_JOIN item by giving it 2 keys in the predicate sound_a._sound_a_id = %@ && playlist.playlist_id = %@ and sound_b.sound_b_id = %@ && playlist.playlist_id = %@ The main problem is that because the table does not store sound_a and sound_b, but stored audio, I cannot use this syntax. I do not have the option of reorganizing the sound_a and sound_b to use the same _id attribute name, so how do I do this? Can I pass a method to the predicate? something like this: [audio getID] = %@ && playlist_id = %@

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  • Hiding master view in split view app..???

    - by Mahesh
    Hello friends, I have created split view based ipad app, where master view is table view while Detail view display images.. I need to display the image fit to screen 100% in landscape mode. This could be on button event or double tap event.. Does any one know about it. Thanks in advance.

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  • question related to UITextView

    - by user177893
    I have n number of UITextview and that are added to UIScrollview.and uiscrollview is added to self.view.Now,I want that 1If user enter text in first UITextview ,then as lenth increase os UITextview ,another UITextviews which are below it also reinitialize and maintain properly according to the size of first UITextView.inshort another UITextviews go more below then it was. 2It should work in any of the case ,wether user presses return key after entering text into UITextView or may be not till end

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  • Retrieving a unique result set with Core Data

    - by randombits
    I have a core data based app that manages a bunch of entities. I'm looking to be able to do the following. I have an entity "SomeEntity" with the attributes: name, type, rank, foo1, foo2. Now, SomeEntity has several rows if when we're speaking strictly in SQL terms. What I'm trying to accomplish is to retrieve only available types, even though each instance can have duplicate types. I also need them returned in order according to rank. So in SQL, what I'm looking for is the following: SELECT DISTINCT(type) ORDER BY rank ASC Here is the code I have so far that's breaking: NSError *error = NULL; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; [fetchRequest setReturnsDistinctResults:YES]; [fetchRequest setPropertiesToFetch:[NSArray arrayWithObjects:@"type", @"rank", nil]]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"SomeEntity" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // sort by rank NSSortDescriptor *rankDescriptor = [[NSSortDescriptor alloc] initWithKey:@"rank" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:rankDescriptor,nil]; [fetchRequest setSortDescriptors:sortDescriptors]; [sortDescriptors release]; [rankDescriptor release]; NSArray *fetchResults = [managedObjectContext executeFetchRequest:fetchRequest error:&error]; [fetchRequest release]; return fetchResults; Right now that is crashing with the following: Invalid keypath section passed to setPropertiesToFetch:

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  • Re-ordering a collection of UIView's based on their CGPoint

    - by Chris
    Hi all, I have a NSMutableArray that holds a collection of UIViewControllers Amongst other properties and methods an instance of each of the viewControllers are placed in a parent view The user will place these objects individually when desired to. So essentially I use - (void)addSubview:(UIView *)view when a new view is added to the parent view controller. Because the UI is isometric it's made things a tad more complicated What I am trying to do is re-order the views based on their co-ordinate position, so items higher up the parent UIView frame is indexed lower then views lower in the parent UIview frame. And items that are on the left side of the view are positioned at a higher index to those on the right I think the solution may have to do with re-ordering the NSMutableArray but how can I compare the CGpoints? Do I need to compare the x and y separately?

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  • iOS Question. Is There a Framework for Build Time Based Apps.

    - by dugla
    I have the need for some time based effects in the iPad app I am building. The UIView class animation capability beginAnimatins/commitAnimations is exactly the sort of thing I am looking for but it is restricted to specific properties of UIView deemed animatable. Ideally, I am looking for a solution that lets me drive an a time-based function that can perhaps send messages to a class of my own choosing at the rate I specify in the animation. Specifically, I have a function - my implementation of the RenderMan function "smoothstep" which is essentially an ease-in ease-out curve common in animation. It takes [0 - 1] as input and outputs [0 - 1] as the curve is evaluated. I want to drive this function for a duration of my own choosing at rate of my own choosing. Thanks in advance. -Doug

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  • Removing time from date format

    - by Prash.......
    Hi, I am developing an application in that i have used DatePicker to pick the date but it gives me date with time .I have converted that format into string, now i just want date from that. How should i do that.Plz suggest me something. Following is my code Snippet. NSDate *selected =[datePicker date]; NSString *dateString = [NSString stringWithFormat:@"%@", selected]; here date picker is object of UIDatePicker.

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  • Displaying menus on image

    - by Snehal
    Hi all, Here is what i am doing: I have a viewcontroller screen1 to which I have added long press gesture. On longPress, user will get draw menu. On selecting that menu, i am creating another uiviewcontroller class object which has a rectangle image. This instance i am adding as a subview to screen1. Now what i want is that once the image is displayed on the screen1, i want to display UImenuItems Done and cancel above the image drawn so that on tapping on done menu, the image is saved. I tried making the new viewcontroller as firstResponder after adding image to screen1 but the menus are not visible. Any one please help

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  • UIPickerview filter list from a user previous textfield input

    - by user1547180
    int variabla; - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView { return 1; } - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component { if (variabla == 1) return list4.count; else if(variabla == 2) return list3.count; if (variabla == 3) return list1.count; if (variabla == 4) return list2.count; return YES; [pickerView reloadAllComponents]; } - (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { if (variabla == 1) { subjectField.text = [list4 objectAtIndex:row]; } else if (variabla == 2) { gradeField.text = [list3 objectAtIndex:row]; } else if (variabla == 3) { mathField.text = [list1 objectAtIndex:[pickerView selectedRowInComponent:0]]; selectedRow = [pickerView selectedRowInComponent:0]; coreTView.text = [mathMeaning objectAtIndex:selectedRow]; } if (variabla == 4) { elaField.text = [list2 objectAtIndex:[pickerView selectedRowInComponent:0]]; selectedRow = [pickerView selectedRowInComponent:0]; coreTView.text = [elaMeaning objectAtIndex:selectedRow]; } [pickerView reloadAllComponents]; NSLog(@"row selected is %d", selectedRow); } - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { if (variabla == 1) return [list4 objectAtIndex:row]; if (variabla == 2) return [list3 objectAtIndex:row]; if (variabla == 3) return [list1 objectAtIndex:row]; if (variabla == 4) return [list2 objectAtIndex:row]; return NO; [pickerView reloadAllComponents]; } Hey I would like to know or pointed in the right direction on how to load a UIPickerView based on the user input from a previous uitextfield so if they type in the previous textfield apple I would like red, green, blue to show in the UIPickerView or if they type orange I would like to see orange, yellow grape thanks for the help in advance.

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