After screen rotation. How long to up date element size properties?

I have a canvas set to fill width. On screen rotation I get the canvas width and calculate the maximum x coordinate.

I am finding that the canvas width property is not updated straight away and canvas.width returns the pre-rotate value. Is there a way around this?

In the attached blocks. When the screen is rotated, I recalculate Graph_maxPos based on the canvas.width. 

Graph_maxPos is the maximum x coordinate in the graph.

If I wait a short while after the rotation and use the start button to reset the graph everything works fine.

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What you can do, is to enable a clock at screen rotation, and calculate the new values when it fires the first time (then disable the clock again). Experiment with the timer values for the shortest reasonable value.

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this is what I done and the same method I used to over come a similar issue when updating button graphics. I feel it is a little messy having to used timers though.

Is this type of problem inherent in Android or is it just AI?

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It is just AI that is not so fast. It may well be that when you build the app that you do not have the problem, because of less overhead.

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thanks

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