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Home/ Questions/Q 6010409
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T02:06:43+00:00 2026-05-23T02:06:43+00:00

i am developing one app. and i am facing a problem related to updating

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i am developing one app. and i am facing a problem related to updating the screen,which is already in stack.I tried to use myappscreen.invalidate() on button click,but it doesn’t update screen.

Please help me to solve this problem.

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  1. Editorial Team
    Editorial Team
    2026-05-23T02:06:44+00:00Added an answer on May 23, 2026 at 2:06 am

    Is your screen the active screen?

    To redraw the active screen, you should just need to call the invalidate() method to cause the screen to refresh.

    Where are you calling invalidate() from? You cannot call invalidate() from a Timer thread unless you have got an eventlock.

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