I want to draw an rotating arrow on an imageview, like one of the first versions of GPS4ppc. My idea was to rotate the arrow as bitmap with drawBitmapRotated. The first problem is, that when i draw it on the activity, the arrow is under the imageview. When I draw it on the imageview, I get an error, that the bitmap is not mutable???? And last but not least, is it possible to get the borders of the rotating bitmap transparent? I don't know, if DrawBitmapRotated is the suitable for an rotating arrow.
Attached you find an example of a rotating needle or a rotating compass.
The compass and needle are drawn directly onto the Activity.
The surrounding pixels of the needle have bin set transparent in the png file.
I have not yet tested Erel's proposal with an ImageView view. I had also some trouble trying to draw onto an ImageView.
Yes, I'm sorry for the confusion. Version 1 is planned to be released next week on Wednesday.
The last couple tutorials will also not work with the beta version.