GestureHandler

GestureHandler[expr,{gesture1fun1,gesture2fun2,…}] displays as expr, evaluating funi[value,velocity] whenever "gesturei" occurs within the screen space occupied by expr.

GestureHandler[expr,{"gesture"{fun,funend},…}] evaluates fun as updates are received for "gesture", followed by funend[value,velocity] when the gesture ends.

GestureHandler[expr,{"gesture"{funstart,fun,funend},…}] also evaluates fstart[value,velocity] when "gesture" begins.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.