iOS Question Drawing on Canvas without colors, only black, on some devices

Cadenzo · Aug 15, 2019

Hi,
I have an Canvas-Array

B4X:

Private RasterArrayGrafics() As Canvas

and I want to draw on it:

B4X:

RasterArrayGrafics(i).DrawBitmap(btmMonsters(iNr), rect_DestRect)
RasterArrayGrafics(i).DrawCircle(i_drawMitte, 20dip, 5dip, Colors.Red, True, 0)
RasterArrayGrafics(i).Refresh

On my Tablet everything is OK, but on my iPhone 5 the bitmaps and circles are without color, only black.

Do you have any idea, what the reason could be?

Erel · Aug 16, 2019

Hard to say based on the code you posted. Why do you need an array of canvases?

Cadenzo · Aug 16, 2019

I have on a panel a Label-Array with 8 x 4 Labels, that represents several time positions of a rhythm. So each of this label owns a canvas, which can show the beat. On iPad it works. Only without colors on iPhone 5.

Erel · Aug 18, 2019

The images are from Android. I recommend you to use ImageViews instead of labels. If you aren't able to solve it then upload a small project with the code.

Cadenzo · Aug 18, 2019

Thank you! It is not the biggest problem and I try to solve it by myself with a bit time. If I cannot find any solution, and many users are crying, I will post the code here.

iOS Question Drawing on Canvas without colors, only black, on some devices

Cadenzo

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Erel

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Cadenzo

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Erel

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Cadenzo

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iOS Question Drawing on Canvas without colors, only black, on some devices

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