1. Dave O

    Android Question drawing variable transparency to reveal underlying image?

    Hi all, I'm trying to figure out how to reveal an image by putting a black bitmap on top of it, then letting the user draw on the screen to gradually reveal the image. (Think of it as rubbing soot off a window so you can see through it.) I can draw with transparency to completely reveal the...
  2. walterf25

    Android Question Adding Opaque Overlay on top of Camera Preview

    Hi All, i would like to find out if it would be possible to add an opaque overlay over the camera preview, i have seen some apps where they have a small rectangle in the middle where the camera preview looks normal and everything else around it looks as if it has an opaque overlay, please check...
  3. semar

    Android Question Is there a way to set a color transparent ?

    Hi all, let's say I have some animated sprites with different coloured backgrounds, which should be rendered as transparent. Is there a way, in B4A/B4X to render a certain color of an image as transparent ? For instance, if I have an animated sprite where the pink color should not be...