Android seekbar how to block dragging / disable it for short time

You should set your own onTouchListener and just return true.

seekBar.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                return true;
            }
        });

Have you tried disabling the view?

Ref: http://developer.android.com/reference/android/view/View.html#setEnabled(boolean)

Update:

https://stackoverflow.com/a/3278616/529691

Ideally you shouldn't be doing this, as this is going to confuse the user. My suggestion is rethink your approach.