I've been chasing this for a week - the symptom I noticed is that in metal builds, the pinch/zoom
function sometimes manages to draw outside the window being zoomed. This works perfectly
in android and in pre-metal IOS.
I've finally managed to generate a small test program. I'm pretty sure this is a timing
related problem in the interface between codename1 and the underlying OS.
The general operation is to transform by a large amount, then draw an image that
is much larger than the window, and which ought to be clipped to the bounds of
the window. The observed error is that the entire screen is drawn, resulting in a
picture like this.
Here's the test program
Dtest.java
Instructions: run the test, tap the screen once to flip to the actual test program. Note
the top menu bar, and a screen that looks like this.
now rotate the device 90 degrees. You should get an overrun screen like the one shown.
I've been chasing this for a week - the symptom I noticed is that in metal builds, the pinch/zoom
function sometimes manages to draw outside the window being zoomed. This works perfectly
in android and in pre-metal IOS.
I've finally managed to generate a small test program. I'm pretty sure this is a timing
related problem in the interface between codename1 and the underlying OS.
The general operation is to transform by a large amount, then draw an image that
is much larger than the window, and which ought to be clipped to the bounds of
the window. The observed error is that the entire screen is drawn, resulting in a
picture like this.
Here's the test program
Dtest.java
Instructions: run the test, tap the screen once to flip to the actual test program. Note
the top menu bar, and a screen that looks like this.
now rotate the device 90 degrees. You should get an overrun screen like the one shown.