本文实例为大家分享了微信小程序画布圆形进度条展示的具体代码,供大家参考,具体内容如下
效果图:
代码:
wxml
<!--pages/test/test.wxml--> <canvas style="width: 300px; height: 200px;" canvas-id="canvasid"></canvas>
js
// pages/test/test.js var context = new wx.createcanvascontext('canvasid', this); var strat_num = 1, end_num = 20; var sangle = 1.5 * math.pi, eangle = 0; page({ onready: function () { this.canvas() }, canvas:function(){ var that=this; if (strat_num <= end_num){ console.log('strat_num:', strat_num) eangle = strat_num * 2 * math.pi / end_num + 1.5 * math.pi; settimeout(function () { context.setstrokestyle("#00ff00") context.setlinewidth(2) context.filltext(strat_num * 5 <= 100?strat_num * 5:100, 95, 95) context.arc(100, 100, 60, sangle, eangle, false) context.stroke() context.draw() that.canvas() strat_num++ },200) } else { console.log('strat_num_end:', strat_num) } } })
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offset、client、scroll (width,height、left,top、X,Y)
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