Super imposition?

[hackhack]

I have an imageview with a picture. I have a PNG with transparent areas, is it possible to overlay on the imageview?

(ie, really compose the two, keeping the new areas from the PNG and respecting the transparent areas)

 

[Djembefola]

you can do it with the .drawbitmap method of the canvas object

dim cnv as canvas
cnv.initialize(myimageview)
cnv.drawbitmap(...

 

[hackhack]

Hmm....

 

[hackhack]

Can't get it to work, it just crashes.

 

[Erel]

What is the error message?

 

[hackhack]

It was a NullPointerException, apparently you can't draw on the imageview until it has been AddView'ed to something else.

However even though the source files are the same size the copy looks bigger (when placed on the other picture)

Can I resize a bitmap with transparencies (png source) and have the transparent areas remain or will they disappear?

 

[thedesolatesoul]

Transparent areas will remain.
Do you know why they are drawn different sizes? Maybe using different methods to draw them?

 

[hackhack]

Transparent areas will remain.
Do you know why they are drawn different sizes? Maybe using different methods to draw them?

Well, the first is placed in an imageview, then i use the canvas to copy the second image on the first one.

 

[thedesolatesoul]

Well the one in the imageview depends on the size of the imageview. I think it will be stretched to the dimensions.
The other one will depend on the size of DestRect you use to draw. If you set the size of DestRect the same as imageview dimensions they should be the same size.

 

[hackhack]

Yep, that seems to do the trick. I had set the size from the bitmap instead, thanks