微信小程序-可移动菜单的实现过程详解

<view class='title-line'>
movable</view>
<movable-area class="moveArea">
<movable-view class='moveView' x="{{x}}" y="{{y}}" damping="40" direction="all" inertia='true'>菜单
</movable-view>
</movable-area>
<button class='button' type='primary' size='mini' bindtap='moveView'>点我随机滚动小方块</button>
<button class='button' type='primary' size='mini' bindtap='stopMove'>点我停止随机滚动</button>

Page({
data: {
x: 0,
y: 0,
isStop:false,
},
moveView:function(e)
{
var that = this;
setTimeout(function () {
that.move(that);
}, 1000);
},
stopMove: function (e) {
this.setData({
isStop: true
})
},
move: function (that)
{
var randowX = that.GetRandomNum(1, 200);
var randowY = that.GetRandomNum(1, 400);
that.setData({
x: randowX,
y:randowY,
})
if(!that.data.isStop)
{
setTimeout(function () {
that.move(that);
}, 100);
}
},
//随机函数
GetRandomNum: function (Min, Max) {
var Range = Max - Min;
var Rand = Math.random();
return (Min + Math.round(Rand * Range));
},

.moveArea {
height: 400px;
width:200px;
background: red;
margin: 10px;
}
.moveView {
height: 100rpx;
width: 100rpx;
line-height: 100rpx;
background: blue;
border-radius: 50%;
text-align: center;
margin: 10rpx;
}