如何让性功能强大|功能强大的Android滚动控件RecyclerView

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//图片手势放大
     varreqAnimationFrame = (function() {
       returnwindow[Hammer.prefixed(window,"requestAnimationFrame")] ||function(callback) {
         window.setTimeout(callback, 1000 / 60);
       };
     })();
     varel = $("img");
     varticking =false;
     vartransform;
     varinitScale = 1;
     var_eImg ="";
     for(varm = 0; m < el.length; m++) {
       varmc =newHammer.Manager(el[m]);
       mc.add(newHammer.Pan({
         threshold: 0,
         pointers: 0
       }));
       mc.add(newHammer.Swipe()).recognizeWith(mc.get("pan"));
       mc.add(newHammer.Pinch({
         threshold: 0
       })).recognizeWith(mc.get("pan"));
       mc.on("panstart panmove", onPan);
       mc.on("pinchstart pinchmove", onPinch);
       mc.on("swipe", onSwipe);
     }
 
     functionresetElement() {
       el.addClass("animate");
       transform = {
         translate: {
           x: 0,
           y: 0
         },
         scale: 1,
         angle: 0,
         rx: 0,
         ry: 0,
         rz: 0
       };
       requestElementUpdate();
     }
 
     functionupdateElementTransform() {
       varvalue = ["translate3d("+ transform.translate.x +"px, "+ transform.translate.y +"px, 0)","scale("+ transform.scale +", "+ transform.scale +")","rotate3d("+ transform.rx +","+ transform.ry +","+ transform.rz +","+ transform.angle +"deg)"];
       value = value.join(" ");
       if(_eImg !="") {
         _eImg.style.webkitTransform = value;
         _eImg.style.mozTransform = value;
         _eImg.style.transform = value;
         //_eImg.css({ "transform": value }, { "-webkit-transform": value });
       }
       ticking =false;
     }
 
     functionrequestElementUpdate() {
       if(!ticking) {
         reqAnimationFrame(updateElementTransform);
         ticking =true;
       }
     }
 
     functiononPan(ev) {
       el.removeClass("animate");
       transform.translate = {
         x: ev.deltaX,
         y: ev.deltaY
       };
     }
 
     functiononPinch(ev) {
       if(ev.type =="pinchstart") {
         initScale = transform.scale || 1;
       }
       el.removeClass("animate");
       transform.scale = initScale * ev.scale;
       requestElementUpdate();
       _eImg = ev.target;
       return_eImg;
     }
 
     functiononSwipe(ev) {
       varangle = 10;
       transform.ry = (ev.direction & Hammer.DIRECTION_HORIZONTAL) ? 1 : 0;
       transform.rx = (ev.direction & Hammer.DIRECTION_VERTICAL) ? 1 : 0;
       transform.angle = (ev.direction & (Hammer.DIRECTION_RIGHT | Hammer.DIRECTION_UP)) ? angle : -angle;
       requestElementUpdate();
       _eImg = ev.target;
       return_eImg;
     }
     resetElement();

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