problem about invalidate-Collection of common programming errors
Sébastien
delphi components paint invalidate
I am creating my own component in Delphi 6 The component is working perfectly except for the paint section my paint section starts like thisinherited Paint; if (csdesigning in ComponentState) then beginso when the component is created at runtime it never get painted, but if I remove that line it seems to get repainted all the timeis there a way I can move the (paint) code so it only get called on eg. Invalidateany would be a appreciated and in advance I thank you
SeniorShizzle
iphone objective-c nstimer cancel invalidate
I’ve got an iPhone app with an NSTimer called pressTimer that goes off every time someone touches this button. The problem is they touch the button a lot, and I want the timer to stop when they lift up their finger. So I declared pressTimer in my .h and synthesized it in .m then assigned and started it on the TouchDown action I created. I use the code [pressTimer invalidate] on my TouchUpInside action that should cancel the timer, since it’s a global variable. It seems to cancel the timer fine,
Datoraki
java swing validation rules invalidate
When dealing with swing components, and when changing the components during runtime, one (often) needs to call the revalidate() method on the components in order for them to refresh.What are the rules that determine whether or not one needs to revalidate a component? Does swing automatically call revalidate() when some certain properties on a component changes, and for some other properties not?
ssj
objective-c uiview nstimer dealloc invalidate
@interface someview:UIView{NSTimer* timer; } @end@implementation someview-(void)dealloc{NSLog(@”dealloc someview”);[timer invalidate];timer = nil; } -(void)runTimer{ // } -(void)someMethod{timer = [NSTimer timerWithTimeInterval:2.0f target:self selector:@selector(runTimer) userInfo:nil repeats:YES]; }@endReleasing someview will NOT call dealloc and the timer keeps on running. If I comment out the “timer = [NSTimer schedule….” part, dealloc will be called. Which means all the other part of my c
John Saunders
c# drawing onpaint invalidate
I have 3 data graphs that are painted via the their paint events. When I have data that I need to insert into the graph I call the controls invalidate() command.The first control’s paint event actually creates a bitmap buffer for the other 2 graphs to avoid repeating a long loop. So the invalidate commands are in a specific order (1,2,3). This works well, however when the graphed data reaches the end of the graph window (PictureBox) where the data would normally start scrolling, the paint event
wojci
android refresh ondraw invalidate android-theme
I have searched but cant find a solution to my problem. What I need to do is set a random theme and then have all other views adopt this theme. The randomising of the theme isn’t the problem, I know it’s woking. Whats the issue is refreshing the views already in the stack.I callint theme = Constants.THEMES[randomInt]; setTheme(theme);in an activity somewhere in the stack and then call invalidate() on that activity. Nothing happens in that activity but when I go to other activities the new theme
Peterdk
android drawing partial invalidate
I have a custom view that fills my entire screen. (A piano keyboard) When a user touches the key, it causes invalidate() to be called and the whole keyboard gets redrawn to show the new state with a touched key.Currently the view is very simple, but I plan to add a bit more nice graphics. Since the whole keyboard is dynamically rendered this would make redrawing the entire keyboard more expensive.So I thought, let’s look into partial redrawing. Now I call invalidate(Rect dirty) with the correct
user244129
iphone session invalidate quit
I would like to tell the server to invalidate an ongoing session when the user quits the iPhone application.In the app delegate, I send a request to the server in the (void)applicationWillTerminate:(UIApplication *)application method. I am not waiting for a server answer, I just want to send the request and quit.However I cant see any packet leaving the application. The same code in another place works fine.Session has a limited duration anyway and the server will invalidate it after a while, bu
iamtoc
ruby datetime invalidate
Why is ‘time’ being returned as an invalid date?val = “9/22/2011 4:23 AM” time = DateTime.parse(val).strftime(“%Y-%m-%d %H:%M:%S”).to_datetime #at breakpoint: time = 2011-09-22T04:23:00+00:00 as a DateTime Object@form_entry.storage_datetime = time # crashes here with invalid dateIf it helps, I’m using gem mysql 2.8.1 and Ruby 1.9.2. Thanks
mrfreester
android onclicklistener invalidate
I have a view that contains a user’s drawing. When clicking a ‘play’ button I want to have a loop that draws the image from start to finish. In attempting to do this I basically have a loop inside of an onClickListener for the play button that essentially invalidates the view, waits, sets the next set of points and invalidates again.The problem is that the image doesn’t actually redraw until after the entire image is draw. So essentially nothing happens and then it’s all of a sudden done. After
user2115240
android view invalidate
I am sending data to a class which i desired to change the layout. I send the data by the followinf way:while(connected){ //receive data through socket in = new BufferedReader(new InputStreamReader(socket.getInputStream()));while ( (line = in.readLine()) != null){String [] aarray = line.split(“[^\\d]+”); if (aarray != null){for(int i = 0; i < aarray.length; i++){number = Integer.parseInt(aarray[i]);}}Log.d(TAG, “Line ” + String.valueOf(line));
Pedr
ios objective-c crash nstimer invalidate
I have the following pair of functions in a MessagePlayerViewController(UIViewController) which move a slider to reflect playback progress of an AVAudioPlayer:-(void)startTrackingPlayback {if(!self.isPlaying){self.isPlaying = YES;self.playbackTimer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];} }-(void)stopTrackingPlayback {if(self.playbackTimer){if(self.playbackTimer.isValid){[self.playbackTimer invalidate];self.playbackT
Matthew Strawbridge
android crash ondraw invalidate
When I run my application in the emulator it works well, but in my device it crashed.When I open my activity and call the ondraw method I figured that the Invalidate(); is the problem:protected void onDraw(Canvas canvas) {// TODO Auto-generated method stubgetinfoGFX.open();String d = “”;semesterNo = getinfoGFX.getDataSemestersNo(s);semestrYear = getinfoGFX.getDataSemestersYear(s);semestrId = getinfoGFX.getDataSemestersID(s);LastGPA = getinfoGFX.getDataLastGPA(s);LastHourse = getinfoGFX.getDataLa
Toon Casteele
c# outlook-addin ribbon invalidate
I have a pretty large outlook add-in with following ribbon.xml:<?xml version=”1.0″ encoding=”UTF-8″?> <customUI xmlns=”http://schemas.microsoft.com/office/2009/07/customui” onLoad=”Ribbon_Load”><ribbon><tabs><tab idMso=”TabMail”><group id=”groupViewHome” label=”View tasks”><toggleButton id=”buttonToggleHistoryHome” getLabel=”getLabelToggleHistory” imageMso=”ControlToggleButton” onAction=”toggleHistory_Click” size=”large” getPressed=”getEnabledToggleHistory”
vips
jsp session websphere-7 illegalstateexception invalidate
I want to invalidate a session when a jsp is loaded so that any existing session attributes are removed from jsp which is directing to this jsp.Below code is working on tomcat6.0.29 but throwing java.lang.IllegalStateException in websphere7.0.19.I have tried adding few ‘if’ conditions but it throws error when invalidate is invoked.<%try { if(request.getSession().getAttribute(“userId”) != null){if (!request.getSession().isNew()) {request.getSession().invalidate();}}} catch (Exc
user1494865
java android canvas view invalidate
I am currently working on a custom View which draws some tiles on the canvas. Those tiles are loaded from several files and will be loaded when needed.They will be loaded by an AsyncTask. If they are already loaded they will just be painted on the canvas. This is working properly!If those pictures are loaded the AsyncTask is firing view.postInvalidate() The problem is that my custom View is not firing onDraw(Canvas canvas) everytime I fire view.postInvalidate().The view.postInvalidate only fires
mAndroid
android invalidate mapactivity
I have a MapActivity and a Spinner. On Spinner there is OnItemSelected event which makes a content change of view. so i applied setContentView again on event of spinner onItemSelected because i changed the var content which is actually containing the data.but here it causing a crash Caused by: java.lang.IllegalStateException: You are only allowed to have a single MapView in a MapActivityso I did by doing this.startActivity(new Intent(MapMultipleUsersActivity.this,MapMultipleUsersActivity.class)
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