I want to check for changes in the aplication state every time interval, and if it has changed, to open a window, and give the user 10 seconds to press on the window, if he does press on the window, then to allow him to navigate freely in the window, and if he doesn't press, to return back to the window before. I thought to implement it with a thread running in the background and waking up every time interval I want. Maybe there is a better way?
This strikes me as a scenario with lots of potential issues.
How do you stop the "window" appearing at an inconvenient time to the user? (e.g. when they were just about to tap on som.ething)
Why not just raise the notification when the state actually changes? This way you wouldn't need to poll.
What is the "Window" you are displaying? How does it differ from the page it is replacing? Is this a popup or are you actually navigating to a different page?
What is the state that's changing? How is it changing without user interaction?
Can't you notify the user of the state change without a potentially intrusive display of a new "window"?
I agree with #matt-lacey, this could be dangerous and might result in a bad user experience.
With that said, this might work
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
//navigation code here
});
I didn't know you could do a pop-up window, could you elaborate?
I've made a thread that is running at the background and making some work, if it decides that a change is necessary, I want to give the user a chance to react to it, or ignore it.
I'm pretty new to this, so if there is a better way than to navigate to a different page i would love to hear it.
Thanks.
It sounds to me like you want to notify the user that something has happened/changed and give them the option to do something about it, which is exactly what "toast" notifcations are all about. They pop up at the top of the screen to inform the user, and then the user can tap that toast to do something, e.g. when WiFi networks are available, you tap the toast to select an available network.
The Silverlight Windows Phone Toolkit includes the ToastRequestTrigger that you use to display toast notifications. The Windows Phone Developer Guide from the patterns & practices team gives examples of using the ToastRequestTrigger. You will need to implement the tap handling yourself in the toast content, but this should be simple enough.
Related
I have an Alloy app. It has got 7 windows and opens at same time. When user close a opened window $.removeListener(); $.destroy(); codes runs at window close event. But I am getting memory leaks on Android device. %90 windows has got ListView, every window has got max 2 Listview. What is the right approach for multiple windows?
First of all, why you would want to open 7 windows at same time when user can only see max 1 window at a time.
It's dead simple, open only that window which user should see first, & create a link-flow to other window in previous window.
Can you think of any app on Play Store which does so, if you have, then please send me its link, I would really love to review it?
But if you mean to say that user will see all windows at same time in a scrolling behaviour or like paging, then go to Ti.UI.TabGroup
Are you 100% sure that your event listeners are being removed?
I don't know the function $.removeListener(); is this a custom function?
As a general rule I try and put as many of my event listeners into the xml, as these are automatically removed, and have a custom function destroyMe() that runs onClose which removes any other listeners that I may have used and $.destroy()
Ti.App.addEventListener is a killer too, make sure these are removed if you use them!
ps: i totally understand the 7 windows bit :-)
I'm a new Mac programmer writing my first mac app, actually porting an existing iOS app to MAC.
The app does a lot of remote communication, so when the user kicks off an operation, I want to display a busy window (or message box, or NSAlert maybe), until the operation is completed, then dismiss it programmatically, or the user can click cancel to stop it.
The busy window prevents the user from doing anything until that operation is completed.
The busy window should have a progress spinner, some text, and a cancel button.
Its such a simple thing yet I'm having problems with it because I dont really know MAC programming, getting myself frustrated.
Can anybody offer suggestions, or already written code for it. I hope some code for this already exists because I cant believe I'm the only person in the world who needs things kind of busy window.
Thanks for any help.
You mean something like this:
http://www.developers-life.com/example-nspanel-with-nsprogressindicator.html
???
Source code is available, too (link at the end of the article).
You can just modify the NSPanel in Xcode and add a "Cancel" button that you connect to your cancel action.
Well, I’m developing a small game for Windowsphone (with Silverlight). That way, I’d like how could I handle the Start button event?
Apparently, is not possible to override the Application_Deactivated method, right? Hence, even if I create a method and call it inside Apllication_Deactivated, the game would be finished anyways.
I’d like to show a Canvas, like: Are you show you want to leave the Game. Pretty basic. I’ve done that on return button. So, how could I make the same on Start button?
Cheers,
Short answer: You can't.
Microsoft states that it is not the developers choice to handle what happens when the start button is pressed. What you should do is handle the event and save user state, then reload the state when the user navigates back to the application.
I have a NSMenu coming down under a NSStatusItem. I also have a NSSpeechRecognizer. When the NSMenu is open, the speech recognizer does not function properly. It will constantly show that it's receiving sound, until I close the menu. I need it to detect sound properly even while the menu is open.
How can I make the speech recognizer detect sound even while the menu is open? Does it need to become a "first responder" and take precedence over the menu?
I tried setting [speechRecognizer setListensInForegroundOnly: NO] and it still won't work.
If you don't understand, I am more than happy to provide clarification.
Here are some similar situations, but I don't yet fully understand.
The problem is most likely that the menu is running a modal run loop as long as it is open (for the purposes of tracking the mouse, etc...) and this is blocking the NSSpeechRecognizer's ability to function normally.
You can confirm this by bringing up the menu and then pausing into the debugger. You'll likely see two run loops; the outer, normal, one and one deeper down the stack that is running the modal loop.
In general, this is kind of an odd thing to do from a user interaction perspective. The whole point of a pop-up menu is to offer the user some commands that will be done after the corresponding menu item is selected.
If you really need "click this thing and recognize voice", I'd recommend a button that, maybe, pops up a bit of UI and then interacts with the speech recognizer without using a menu?
I need to know if the user has hidden an icon added by my program to the system tray area.
Is it technically feasible?
UPDATE
My program - yowindow displays the current temperature in the system-tray icon.
I want to spare the server load by not auto-updating the weather for the users who don't see the tray-icon.
No.
And what would you do with this information, even if you had it?
(caveat - I guess you could do a screen-grab, work out where the taskbar is, figure out where the system tray is, "parse" out each icon, then bitmap compare each against your own icon. But really...)
It might be worth your while looking at this related question
Based on first Edit to question
I can see your point. But look at it from the windows API designer's POV. They provided a facility for icons to be created in an "always visible" manner. And every man+dog went ahead and put an icon in there, on the presumption that the user would always want to know about their product (please note, I'm not claiming that you're in this group here).
They've noticed this runaway behavior, and whilst they can't now take away the ability to create these icons, they want to give the user control.
Now we come to the problem. Imagine, for a second, that you're a less than enlightened developer. And if you detect that your icon has been hidden, you pop up a message prompting the user to un-hide your icon. Maybe you do this once per login. Maybe you do it every half an hour. It's just a general level of user annoyance, similar to having 40 icons appear in the tray, when the user doesn't care about most of them
The question is - if you were designing an API to allow developers to discover whether their icon is, in fact, hidden. How do you allow your benign usage, whilst preventing the behavior in the previous paragraph? Spend a few minutes trying to pretend to be a windows API designer, and try to write the necessary function(s) (for the sake of argument, assume the annoying developers aren't willing to implement the IAmEvil interface, or whatever, or would be willing to implement the IOnlyDoGood interface...)
Hopefully, your icon is useful, and users will either a) show your icon, or b) remove your application (if it's not doing what they want/need)
There is no API function for that as far as I know, and there's no good solution to the problem. You could directly after the installation show a message from the tray telling the user that the icon may be hidden. Not that it will help, but it's all you can do. I've seen programs that bug the user by periodically showing that message but this is really NOT a good thing to do.