problem with scaling pictures

alwaysbusy

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I'm trying to convert an app I've written in java to basic4android. I have some problems with the scaling of the background picture. It has to run on a Samsung Galaxy S (480x800x1,5 (240 dpi))

Screenshot 1 is how it should be

Screenshot 2 is the result on the Samsung Galaxy S

Screenshot 3 My settings in Basic4android.

In the java app, I put my pictures in the drawable-hdpi folder and it is scaled correcty. In b4a I only see a drawable folder.

When I create an emulator with 480x480x1 (160 dpi) the picture is shown correctly (screenshot 1). If I create an emulator with 480x800x1,5 it is wrong (screenshot 2).

Any help would be greatly appreciated.
 
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alwaysbusy

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Your question gave me the clue to the solution. The picture is 1440x1600. It is not drawn in b4a itself, but in java. I have a surfaceview connected to a b4a panel (very much like the camera library).

I did draw it like this:

mCanvas.drawBitmap(_bg, 0,0, null);

were I wrongly assumed it would take 480x800 pixels from the picture and put it on the canvas.

However now I do it like this:

Rect src=new Rect(0, 0, 480, 800);
Rect dst=new Rect(0, 0, 480, 800);
mCanvas.drawBitmap(_bg, src, dst, null);

And the size of the picture is correct.
 
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M

modus

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Galaxy S DPI

Hi alwaysbusy,
I have the same problem with my Galaxy S.
With emulator is right with 160 dpi but phone zoom 1.5x.
Have you found some solution?
Thank you
 
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