- op1
- One opacity value.
- op2
- Another opacity value.
Documentation for this section has not yet been entered.
Return the appropriate opacity value for two source opacities. If either is UNKNOWN, that is returned; else, if either is TRANSLUCENT, that is returned; else, if either is TRANSPARENT, that is returned; else, OPAQUE is returned.
This is to help in implementing Drawable.Opacity.