It's not that difficult to read the claims. Apple's patent covers distinguishing between pinch-to-zoom and scroll gestures based on whether one or two figures are touching. Prior art on pinch-to-zoom seems to show scrollbars for scrolling instead of single-finger-to-drag.
The simple workaround to apple's patent: allow two-finger drag. One or Two fingers close together (or moving in parallelt) is a drag. Two or more fingers far apart is a zoom. As long as there's no line of code that goes "if one finger down then it's a drag else if two fingers down it's a zoom" then the code doesn't infringe the apple patent. Easy peasy.
The simple workaround to apple's patent: allow two-finger drag. One or Two fingers close together (or moving in parallelt) is a drag. Two or more fingers far apart is a zoom. As long as there's no line of code that goes "if one finger down then it's a drag else if two fingers down it's a zoom" then the code doesn't infringe the apple patent. Easy peasy.