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Home/ Questions/Q 6140609
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T18:08:24+00:00 2026-05-23T18:08:24+00:00

In my application for an activity’s setContentview() I set a class which extends SurfaceView

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In my application for an activity’s setContentview() I set a class which extends SurfaceView.

At first when the app run I able to draw there on surface (bcz there i put Touch events in that class and using canvas i able to draw on that surface ),
In a option menu click i want different drawings come on same screen/surface (means explicitly i want to draw circle or line on that same canvas)& it should be set to that surface.
but how can i do this?

Is there any way to call setcontview again then it may solve.
U can see my code http://pastebin.com/DZ0hcH3j here.

Thank you

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  1. Editorial Team
    Editorial Team
    2026-05-23T18:08:25+00:00Added an answer on May 23, 2026 at 6:08 pm

    Call invalidate() on your view class. This will call your onDraw() eventually.

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