How to freeze the UI for few seconds?

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I am creating a windows Phone 7 application. I want to freeze the UI for a few seconds. Should I use a timer? Calling the Thread.sleep() method isn't giving the proper result. Which timer should I use? Can someone give proper explanation?

Posted 26-Oct-11 3:19am

VigneshPT

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I.explore.code 26-Oct-11 10:14am

its actually funny how easy it could be to freeze the GUI when you don't want it to freeze and vice-versa otehrwise :)

3 solutions

Solution 3

Can you not just disable all your controls on the GUI for the amount of time you don't want any UI interactions and place a simple "Please Wait" thingy on the GUI?

Posted 26-Oct-11 4:12am

I.explore.code

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Mark Salsbery 26-Oct-11 11:02am

Agreed. That would be my solution. You shouldn't be halting the UI thread on WP7 (or Silverlight or WPF)...

BobJanova 26-Oct-11 11:19am

... or any other platform ;)

VigneshPT 26-Oct-11 11:24am

Accepted. But my question was actually about how exactly do I disable things for a particular amount of time. I think I found the answer, but suggestions are welcome.

I.explore.code 26-Oct-11 11:31am

sounds good if you have found a solution, if you get stuck again. Do come back :)

Solution 1

Why would you want to do that? Normally, the problem is not freezing the UI...
Why would you want to deliberately let the user think the phone has crashed for no good reason?

Posted 26-Oct-11 3:27am

OriginalGriff

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VigneshPT 26-Oct-11 10:00am

Intention is not to make the user think that the phone has crashed. All I want to do is to enable visibility of a picture for two seconds, and make it invisible after two seconds(i.e., before repainting my display). All user interaction is to be ignored during this time.

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RaisKazi · Accepted Answer · 2011-10-26T03:33:00

Solution 2

If I am not misunderstood, you want to put some delay between your Operations.

For this in WP7 Programming, use DispatcherTimer.

Have a look at below links.
http://msdn.microsoft.com/en-us/library/system.windows.threading.dispatchertimer.aspx#Y0

http://social.msdn.microsoft.com/Forums/is/windowsphone7series/thread/a7509566-7d13-483e-bf3a-3ce22dcba1f6

Posted 26-Oct-11 3:33am

RaisKazi

Comments

BobJanova 26-Oct-11 11:21am

This looks like the right answer for imprecise, UI related timed operations.

RaisKazi 26-Oct-11 13:10pm

Thank you Bob :). Both yours and mine guess was correct. :)

Espen Harlinn 26-Oct-11 20:08pm

5'ed!

RaisKazi 27-Oct-11 0:51am

Thank you Espen. :)