Android Question Odd Canvas Behaviour - Possible Bug?

Gary Milne · Aug 20, 2014

I'm using a Scrollview for configuring Application Settings. If the Height is set to

B4X:

pnlSettings(i).Height = 388%y

it display normally

If I increase the Height beyond this ie

B4X:

pnlSettings(i).Height = 389%y

then everything that is written to the Canvas disappears leaving just the Views visible

This is true in both Release and Debug mode. Is there some inherent limit to a Canvas or Scrollview that is at play here?

Erel · Aug 20, 2014

What is the value of Log(389%y)?

ScrollView doesn't have any limit. Creating a Canvas for a very large image may require too much memory.

Gary Milne · Aug 20, 2014

It was 3.89 times the screen height on a current generation Nexus so perhaps it was a big canvas that was the problem. I have changed my routine to use a Tabhost and smaller canvases which is just fine as a substitute.

Android Question Odd Canvas Behaviour - Possible Bug?

Gary Milne

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Erel

B4X founder

Gary Milne

Active Member

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Android Question Odd Canvas Behaviour - Possible Bug?

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