ionic学习之旅

1.  ng-repeat遍历一个数组时，可以对其进行排序：

eg：<div class="item" ng-repeat="item in items|orderBy:'score':false">

<!-- 其中：score表示排序的对象；false / true控制升序或降序 -->

{{item.score}}

</div>

2.html中：

<div class="button" on-touch="onTouch($event)" on-drag="onDrag($event)">

拖动

</div>

js中：

// drag
var ox,oy;
$scope.onTouch = function($event){
  ox = $event.target.offsetLeft;
  oy = $event.target.offsetTop;
  console.log(ox,oy)
};
$scope.onDrag = function($event){
  var el = $event.target,
    dx = $event.gesture.deltaX,
    dy = $event.gesture.deltaY;
  angular.element(el).css("position","absolute");//绝对定位 
  el.style.left = ox + dx + "px";
  el.style.top = oy + dy + "px";
};