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  • Quartz 2D's drawing text and NSTimer in custom method

    - by coure06
    i want to show text using quartz 2d. Text will be drawing randomly on different position after each 1 seconds. I am not sure how i can use NSTimer with quartz 2D text. I can draw text in drawRect method where graphics context is already available. How i will draw text using my custom method myDraw which will be called after 1 second using NSTimer? If i create my custom Method the graphics context is not available in that method.

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  • NSNotification for UIMenuControllerWillShowMenuNotification

    - by Bob Keathley
    I am trying to use the NSNotificationCenter to get UIMenuControllerDidShowMenuNotification from a UIWebView. I have the following code in my ViewDidLoad method: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(menuControllerWillHide:) name:UIMenuControllerWillHideMenuNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(menuControllerWillShow:) name:UIMenuControllerWillShowMenuNotification object:nil]; And methods: - (void)menuControllerWillHide:(NSNotification *)notification { } (void)menuControllerWillShow:(NSNotification *)notification { [[self navigationItem] setRightBarButtonItem:highlightBtn animated:NO]; } But I never get the Notifications? Any help would be helpful

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  • How do you get Length of Text in a Mojo TextField?

    - by figus
    How do you get the length of the text inside a Mojo TextField? I'm trying to set a multiLine TextField with a limit of 150 chars, I tried doing it with a counter, but ran into a issue of not being able to decrement the counter when the text was erased, or adding the right number when pasting text, so my new approach was to get the length of the text each time you press a letter. I've already tried this: (gets called in the charsAllow attribute of the textField) if (this.controller.get("mensaje").mojo.getValue().length &lt;= 150) { return true; } this.controller.get("mensaje").mojo.blur(); return false; but it doesn't work.... I debugged and the function exits just after the line in bold... it doesn't even returns true or false. I also tried assigning the length value to a variable or assigning the text to a variable and then get the length, but nothing. It's the same issue. It returns just after the getValue(). Also, maybe because of this issue, the text scrolls instead of wrapping, but when the textField loses focus it wraps the text.

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  • UIView animation not working

    - by Daniel
    I have the following code to do a UIView animation: [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1.0]; [UIView setAnimationDelegate:self]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:mapView.view cache:NO]; [self addSubview:detailView]; [mapView removeFromSuperview]; [UIView commitAnimations]; It works when I dont add the detailView. What actually happens is the equivalent of this: [self addSubview:detailView]; [mapView removeFromSuperview]; Please help.

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  • Passing Activity to non-activity object properly

    - by rayman
    In my app ive got a non-activity object which it's role is being a manager class. many times i need to pass "source activity" to methods as parameter to that manager class in order to make some operations on that activity. for exaple let's assume we have MyActivity which gotta do some toast. so i have this manager class called MyManager, and i have this method in it raiseToast(Activity sourceActivity) { Toast.makeText(sourceActivity, demo, Toast.LENGTH_LONG).show(); } and from Myactivity class we calling that method this way: MyManager manager=new MyManager(); manager.raitetoast(MyActivity.this); it works fine. what I'm asking here, is this a proper way to pass an Activity as parameter to a non-activity object? I'm having a memory leaks on real device(not the emulator), I wonder if this could also causing any reason for that? Thanks Idan.

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  • Further explanation of IntentService

    - by rayman
    Hi all, I was trying to get the purpose of the IntentService, and when should I use it? I tried to understand from the API, but not enough details on that one. Is there any analogy between this and running long-task on a working thread? Any further explanation and samples on why I would use IntentService would be very welcome. Thanks, ray.

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  • Placement/Positioning/Alignment of UIScrollView w.r.t. length of Title NSString

    - by Shoaibi
    I have a scenario where i show stuff like: ----------------------------------- titleview (UITextView) ______________ tArea (UIScrollView) ttextview (UITextView) ----------------------------------- Now here is the condition: Length of titleview's text is dynamic, varies based on user input. Because of the condition I have trouble placing tArea e.g. UIScrollView on the screen, it either appears way too below than the titleview, or overlaps it. Previously what i did: Count the number of characters in titleview.text.length and divide them by 27 (e.g. characters in one line when using boldSystemFontOfSize:20) and multiply by 10 to get the starting X of tArea e.g. UIScrollView. But that sucked. Because i had to duplicate code for rotation to landscape. What do i have now? : CGSize titlesize = [title sizeWithFont:[UIFont systemFontOfSize:20] constrainedToSize:CGSizeMake(5, 90) lineBreakMode:UILineBreakModeWordWrap]; ttitleview = [[UITextView alloc] initWithFrame:CGRectMake(5, 5, 310,titlesize.height)]; ttitleview.text = title; ttitleview.font = [UIFont boldSystemFontOfSize:20]; ttitleview.backgroundColor = [UIColor clearColor]; ttitleview.editable = NO; [self.view addSubview:ttitleview]; CGSize textsize = [ttext sizeWithFont:[UIFont systemFontOfSize:20] constrainedToSize:CGSizeMake(5, 350) lineBreakMode:UILineBreakModeWordWrap]; tArea = [[UIScrollView alloc] initWithFrame:CGRectMake(5, titlesize.height, 310, 230)]; tArea.contentSize = CGSizeMake(310, textsize.height+20); tArea.pagingEnabled = FALSE; tArea.scrollEnabled = TRUE; tArea.backgroundColor = [UIColor clearColor]; [self.view addSubview:tArea]; ttextview = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 310, textsize.height + 20)]; ttextview.text = ttext; ttextview.font = [UIFont systemFontOfSize:20]; ttextview.backgroundColor = [UIColor clearColor]; ttextview.editable = NO; [tArea addSubview:ttextview]; But its no use. Looking for an elegant solution than this.

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  • SubViewTwoController undeclared (first use in this function) (obj-c)

    - by benny
    Ahoy hoy everyone :) Here is a list of links. You will need it when reading the post. I am a newbie to Objective-C and try to learn it for iPhone-App-Development. I used the tutorial linked in the link list to create a standard app with a simple basic Navigation. This app contains a "RootView" that is displayed at startup. The startup screen itself contains three elements wich all link to SubViewOne. I have got it to work this far. So what i want to change is to make the second element link to SubViewTwo. When i "Build and Go" it, i get the following errors: RootViewController.m: SubViewTwoController *subViewTwoController = [[SubViewTwoController alloc] init]; // SubViewTwoController undeclared (first use in this function) and in SubViewTwoController.m [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview no superclass declared in @interface for ´SubViewTwoController´ and the same thing after - (void)dealloc { [super dealloc]; I think you will also need the header files, so here they are! RootViewController.h #import <UIKit/UIKit.h> @interface RootViewController : UITableViewController { IBOutlet NSMutableArray *views; } @property (nonatomic, retain) IBOutlet NSMutableArray *views; @end SubViewOneController.h #import <UIKit/UIKit.h> @interface SubViewOneController : UIViewController { IBOutlet UILabel *label; IBOutlet UIButton *button; } @property (retain,nonatomic) IBOutlet UILabel *label; @property (retain,nonatomic) IBOutlet UIButton *button; - (IBAction) OnButtonClick:(id) sender; @end and SubViewTwoController.h #import <UIKit/UIKit.h> @interface SubViewTwo : UIViewController { IBOutlet NSMutableArray *views; } @end I would be really great if you would leave your ideas with a short explanation. Thanks a lot in advance! benny

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  • What are the basics of dealing with user input events in Android?

    - by user279112
    Hello. I thought I had understood this question, but something is quite wrong here. When the user (me, so far) tries to press keys, nothing really happens, and I am having a lot of trouble understanding what it is that I've missed. Consider this before I present some code to help clarify my problem: I am using Android's Lunar Lander example to make my first "real" Android program. In that example, of course, there exist a class LunarView, and class nested therein LunarThread. In my code the equivalents of these classes are Graphics and GraphicsThread, respectively. Also I can make sprite animations in 2D just fine on Android. I have a Player class, and let's say GraphicsThread has a Player member referred to as "player". This class has four coordinates - x1, y1, x2, and y2 - and they define a rectangle in which the sprite is to be drawn. I've worked it out so that I can handle that perfectly. Whenever the doDraw(Canvas canvas) method is invoked, it'll just look at the values of those coordinates and draw the sprite accordingly. Now let's say - and this isn't really what I'm trying to do with the program - I'm trying to make the program where all it does is display the Player sprite at one location of the screen UNTIL the FIRST time the user presses the Dpad's left button. Then the location will be changed to another set position on the screen, and the sprite will be drawn at that position for the rest of the program invariably. Also note that the GraphicsThread member in Graphics is called "thread", and that the SurfaceHolder member in GraphicsThread is called "mSurfaceHolder". So consider this method in class Graphics: @Override public boolean onKeyDown(int keyCode, KeyEvent msg) { return thread.keyDownHandler(keyCode, msg); } Also please consider this method in class GraphicsThread: boolean keyDownHandler(int keyCode, KeyEvent msg) { synchronized (mSurfaceHolder) { if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) { player.x1 = 100; player.y1 = 100; player.x2 = 120; player.y2 = 150; } } return true; } Now then assuming that player's coordinates start off as (200, 200, 220, 250), why won't he do anything different when I press Dpad: Left? Thanks!

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  • How can I get MTK development platform for MT series mobiles with English explanation?

    - by Robert
    You said in a post that you are an engineer and you have MTK development platform for MT series mobiles with English explanation. Can you please tell me how your company obtained it? Did you purchase it from MTK or you downloaded it? If you downloaded it please tell me your source. I am researching how i can develop application in the MTK platform so i hope you could help me with this information.

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  • TFS Client APIs for creating workitem templates?

    - by amazedsaint
    Of course, it is pretty possible to create work items, get a list of work items etc in TFS. In addition to this, we need to have the functionality of allowing our users to create their own work item templates, for various file types. Whether the TFS Client APIs are capable of uploading work item templates to TFS server?

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  • iPhone modal View with alpha transparency?

    - by Moshe
    I am adding a modal view using the following code: [self presentModalViewController:phrasesEditor animated:YES]; How can I make the modal view semi-transparent so that the superview "shines" through? My complete method/function looks like this: -(IBAction)showEditPhrases:(id)sender{ PhrasesViewController *phrasesEditor = [[PhrasesViewController alloc] initWithNibName:@"PhrasesViewController" bundle:nil]; phrasesEditor.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [phrasesEditor.view setAlpha: 0.5]; [phrasesEditor.view setBackgroundColor: [UIColor clearColor]]; [self presentModalViewController:phrasesEditor animated:YES]; [phrasesEditor release]; }

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  • How to use ColorDrawable with ImageView?

    - by user246114
    Hi, I have a layout with an ImageView defined like: <ImageView android:layout_width="45dip" android:layout_height="45dip" android:scaleType="fitXY" /> now I just want to set the imageview to be a static color, like red or green. I'm trying: ColorDrawable cd = new ColorDrawable("FF0000"); cd.setAlpha(255); ImageView iv = ...; iv.setImageDrawable(cd); the imageview is just empty though, no color. The 45dip space is being used up though. What do I need to do to get the color to be rendered? Thanks

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  • Presenting a Popover From a Rect Problem

    - by Sheehan Alam
    I have a UITableViewCell that has some labels and images that can be clicked. I want to present a popover whenever a user clicks on any part of the cell. How can I achieve this without interfering with the click actions of the labels & images? I am currently creating an invisible button ontop of some other clickable items in the cell and calling the popover: [replyPopover presentPopoverFromRect:CGRectMake(77, 25, 408, 68) inView:self permittedArrowDirections: UIPopoverArrowDirectionDown animated:YES]; Unfortunately, because the button is on top of the labels & images I am unable to click them. How can I show a popover by clicking on the background of a cell, so that there is no interference when clicking images & labels inside the cell?

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  • iPhone UIImage initWithData fails

    - by DD
    Hello all, I'm trying to code up an async image downloader. I use NSURLConnection to get the data into an NSMutableData and use that data once it is complete to initialize a UIImage. I checked the bytes and it downloads the entire image correctly (right number of bytes at least), however; when I call [UIImage imageWithData:data] and then check the properties of the image, it is zero width and a garbage number for height, in fact, same number no matter what the image is. I tried with bunch of different images, png, jpg, different urls, it always downloads the image completely but UIImage can't initialize with that data. What could I be doing wrong here? Thanks.

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  • Having problem loading data from AppDelegate using UITableView into a flip view, loads first view bu

    - by Ms. Ryann
    AppDelegate: @implementation Ripe_ProduceGuideAppDelegate -(void)applicationDidFinishLaunching:(UIApplication *)application { Greens *apricot = [[Greens alloc] init]; apricot.produceName = @"Apricot"; apricot.produceSight = @"Deep orange or yellow orange in appearance, may have red tinge, no marks or bruises. "; apricot.produceTouch = @"Firm to touch and give to gentle pressure, plump."; apricot.produceSmell = @"Should be Fragrant"; apricot.produceHtoP = @"raw, salads, baked, sauces, glazes, desserts, poached, stuffing."; apricot.produceStore = @"Not ripe: place in brown paper bag, at room temperature and out of direct sunlight, close bag for 2 - 3 days. Last for a week. Warning: Only refrigerate ripe apricots."; apricot.produceBest = @"Spring & Summer"; apricot.producePic = [UIImage imageNamed:@"apricot.jpg"]; Greens *artichoke = [[Greens alloc] init]; artichoke.produceName = @"Artichoke"; artichoke.produceSight = @"Slightly glossy dark green color and sheen, tight petals that are not be too open, no marks, no brown petals or dried out look. Stem should not be dark brown or black."; artichoke.produceTouch = @"No soft spots"; artichoke.produceSmell = @" Should not smell"; artichoke.produceHtoP = @"steam, boil, grill, saute, soups"; artichoke.produceStore = @"Stand up in vase of cold water, keeps for 2 -3 days. Or, place in refrigerator loose without plastic bag. May be frozen, if cooked but not raw."; artichoke.produceBest = @"Spring"; artichoke.producePic = [UIImage imageNamed:@"artichoke.jpg"]; self.produce = [[NSMutableArray alloc] initWithObjects:apricot, artichoke, nil]; [apricot release]; [artichoke release]; FirstView: @implementation ProduceView -(id)initWithIndexPath: (NSIndexPath *)indexPath { if (self == [super init] ){ index = indexPath; } return self; } -(void)viewDidLoad { Ripe_ProduceGuideAppDelegate *delegate = (Ripe_ProduceGuideAppDelegate *) [[UIApplication sharedApplication] delegate]; Greens *thisProduce = [delegate.produce objectAtIndex:index.row]; self.title = thisProduce.produceName; sightView.text = thisProduce.produceSight; touchView.text = thisProduce.produceTouch; smellView.text = thisProduce.produceSmell; picView.image = thisProduce.producePic; } FlipView: @implementation FlipsideViewController @synthesize flipDelegate; -(id)initWithIndexPath: (NSIndexPath *)indexPath { if ( self == [super init]) { index = indexPath; } return self; } -(void)viewDidLoad { Ripe_ProduceGuideAppDelegate *delegate = (Ripe_ProduceGuideAppDelegate *) [[UIApplication sharedApplication] delegate]; Greens*thisProduce = [delegate.produce objectAtIndex:index.row]; self.title = thisProduce.produceName; bestView.text = thisProduce.produceBest; htopView.text = thisProduce.produceHtoP; storeView.text = thisProduce.produceStore; picView.image = thisProduce.producePic; } *the app works, the flip view for Artichoke shows the information for Apricot. Been working on it for two days. I have been working with iPhone apps for two months now and would very much appreciate any assistance with this problem. Thank you very much.

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  • how to retrieve image from sqlite3?

    - by summer
    sorry guys..i know i had been asking alot of question..but ironically few has given me solution, and so now i really need a solution to the final part of my app?how to i retrieve image from sqlite to be display in the uiimageview?with conversion... NSData *imgData = [[NSData alloc] initWithBytes:sqlite3_column_blob(selectstmt, 3) length: sqlite3_column_bytes(selectstmt, 3)]; snap2playObj.snapImage = [UIImage imageWithData:imgData]; do i do it the normal way or do i need to convert it back to some string or something?kinda no clues..need some example or solution..and i wanna display it in my detailview

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  • UIScrollView + UIWebView = NO scrollsToTop

    - by sniurkst
    It looks like a problem which could have simple solution, but I haven't found anything what could lead the way to it. I'm using UIWebView inside of UIScrollView and tapping on statusBar (to scroll content to top) is not working. I've made simple test application to see if it's really UIWebViews fault. And it really is. // scrolls to top on status bar tap UIScrollView *sv = [[UIScrollView alloc] init]; sv.frame = CGRectMake(0, 0, 320, 480); sv.contentSize = CGSizeMake(320, 1200); [self.view addSubview:sv]; // doesn't scroll UIScrollView *sv = [[UIScrollView alloc] init]; sv.frame = CGRectMake(0, 0, 320, 480); sv.contentSize = CGSizeMake(320, 1200); UIWebView *wv = [[UIWebView alloc] init]; wv.frame = CGRectMake(0, 0, 320, 100); [sv addSubview:wv]; [self.view addSubview:sv]; So, I think maybe there's something I could disable to make UIWebView not to mess with scrollToTop? Or some kind of workaround also would be nice. Any ideas?

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  • insertNewObjectForEntityForName: inManagedObjectContext: returning NSNumber bug?

    - by beinstein
    I'm relatively well versed in CoreData and have been using it for several years with little or no difficulty. All of a sudden I'm now dumbfounded by an error. For the life of me, I can't figure out why insertNewObjectForEntityForName:inManagedObjectContext: is all of a sudden returning some sort of strange instance of NSNumber. GDB says the returned object is of the correct custom subclass of NSManagedObject, but when I go to print a description of the NSManagedObject itself, I get the following error: *** -[NSCFNumber objectID]: unrecognized selector sent to instance 0x3f26f50 What's even stranger, is that I'm able to set some relationships and attributes using setValue:forKey: and all is good. But when I try to set once specific relationship, I get this error: *** -[NSCFNumber entity]: unrecognized selector sent to instance 0x3f26f50 Has anyone ever encountered anything like this before? I've tried clean all targets, restarting everything, even changing the model to the relationship in question is a to-one instead of a to-many. Nothing makes any difference.

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