Temporary view

Former Member over 8 years ago

Hi,
I wanted to know how to add a temporary view that disappear after a little while ;exactly like the lap in the running application for example : when there is a lap, you have a view that shows the number of the lap and the time elapsed (for example), and this view disappears automatically.

Thanks for your help.

Rgds

Top Replies

jim_m_58 over 8 years ago +1

In a DF, here's the way I'd handle this (I do the same in full blown apps, BTW).

In onUpdate(), check for a "message screen", by looking for a non-zero value for something like "msgSeconds". …

All Replies

travis.vitek over 8 years ago

I provided code some time ago to display an alert that would automatically disappear after a timeout or after a key press. I've made a small change to it to follow new guidelines for the SDK, but it should still work to show what you need to do.

You can find it here.

Travis

Former Member over 8 years ago

Ok, many thanks, I'll have a look on it.

Rgds,

Former Member over 8 years ago

Hi Travis,
I try to implement your code, but the alert never appears, I put System.println in every method of the Alert class, there is never called.

Where must we implement the

new Alert({

            :timeout => 2000,

            :font    => Gfx.FONT_MEDIUM,

            :text    => "Quick Brown Fox",

            :fgcolor => Gfx.COLOR_RED,

            :bgcolor => Gfx.COLOR_WHITE

        });

I try on the onupdate(dc), but this didn't work too (I implement a datafield, maybe this is different ?)

jim_m_58 over 8 years ago

In a DF, here's the way I'd handle this (I do the same in full blown apps, BTW).

In onUpdate(), check for a "message screen", by looking for a non-zero value for something like "msgSeconds". If it's non-zero, display the message, else, display the regular screen.

Then in compute(), if msgSeconds is non zero, do msgSeconds-- (compute() is called every second, so no timer needed (which you can't use in a DF anyway)).

To display a message, (on what ever condition you want), you'd have something like:

msg="message to display";
msgSeconds=10;

Former Member over 8 years ago

Hi jim_m_58,
this is a very good idea !

thanks !!

travis.vitek over 8 years ago

Sorry. I wasn't aware that you were trying to do this from within a data field. I don't believe that you can push views from data fields, so you'd have to implement something like Jim's suggestion.

Travis

Former Member over 8 years ago

Ok,
no problem, I didn't tell it by the way.
Jim suggestion is perfect, not to complicated for me :) I was able to implement it :)
Thanks both.

Rgds,