but this code changes all seekbar, I want to have others with other colors.
Is it possible to change via code avoiding the manifest? (a sub getting the seekbar and the color)
Is it possible to use the above code with javaobject or reflection?
You cannot change individual seekbar color scheme. Though you can change seekbar color scheme of individual activity. Just create individual theme for individual activity in which you want different color of seekbar and set seekbar color scheme to that.