Canvas stop recognizing trace Android

Question

Trying to make a canvas that works using MotionEvent.ACTION_MOVE. However after the thread is started horizontal lines draw correctly, but none of the other lines work or are sporadic. As soon as I release the event, the lines clear themselves.

[Edit] It was because the canvas was nested in a ScrollView.

No one will be interested to read the whole paragraph like this, just explain the main problem and in some easy way. — Lalit Poptani, Aug 04 '11 at 16:51
Are you adding the new UI elements programatically or through an XML layout? — Mircea Nistor, Aug 04 '11 at 17:14

score 1 · Accepted Answer · answered Aug 04 '11 at 17:19

1

The only thing I can think of that "could" cause that is that you are placing the SurfaceView in a layout that's trying to scroll.

Please post your layout code for a better answer.

answered Aug 04 '11 at 17:19

Mircea Nistor

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That was exactly it! I had it wrapped inside of a scrollview... as soon as that portion was taken out, it worked perfectly! I had no idea something so small would cause such an odd behavior. Thank you!!!! – RyanInBinary Aug 04 '11 at 17:24

Canvas stop recognizing trace Android

1 Answers1