$('img').on("touchstart",function(E){
//E.preventDefault();E.stopPropagation();
var el=this;var me=$(this);$("#tip").text("in touchstart");
var t=E.touches[0];
console.log("touchstart!,mx,my=(",t.pageX,",",t.pageY,") ,el.x,y=(",el.offsetLeft,",",el.offsetTop,")" );
me.data("mx",t.pageX);me.data("my",t.pageY);
me.data("ex",el.offsetLeft);me.data("ey",el.offsetTop);
})
.on('touchmove',function(E){E.preventDefault();E.stopPropagation();
console.log("touchmove");var el=this;var me=$(this);
var t=E.touches[0];
var mx=parseInt(me.data("mx")),my=parseInt(me.data("my"));
var ex=parseInt(me.data("ex")),ey=parseInt(me.data("ey"));
console.log("or mx,my, new mx,my or ex,ey=",mx,my,t.pageX,t.pageY,ex,ey)
var nx=ex+t.pageX - mx , ny=ey+t.pageY-my
console.log("dest x,y=",nx,",",ny)
$("#tip").text("in touch move : "+"or mx,my, new mx,my or ex,ey="+mx+","+my+","+t.pageX+","+t.pageY+","+ex+","+ey+" dest x,y="+nx+","+ny);
me.css({"left":nx+"px","top":ny+"px"}) ;
})
.on('touchend',function(E){
//E.preventDefault();E.stopPropagation();
console.log('touchend');var el=this;var me=$(this);
});
$('img').on('longTap',function(){$.ui.actionsheet(
[{
text: 'back',
cssClasses: 'red',
handler: function () {
alert("Clicked Back")
}
}, {
text: 'Alert Hi',
cssClasses: 'blue',
handler: function () {
alert("Hi");
}
}, {
text: 'Alert Goodbye',
cssClasses: '',
handler: function () {
alert("Goodbye");
}
}]
);
});