Canvas draw(reserve,callback) 回调只能调一次
var ctx;
onLoad: function (options) {
ctx = wx.createCanvasContext('myCanvas');
this.Draw();
},
Draw: function () {
debugger
let colors = ["#6A0000", "#900000", "#902B2B", "#A63232", "#A62626", "#FD5039", "#C12F2A", "#FF6540", "#f93801"];
let colornum = colors[~~(Math.random() * colors.length)];
ctx.setFillStyle(colornum)
ctx.fillRect(10, 10, 150, 100)
ctx.draw(false, this.Draw);
},
这时Draw()方法调用2次后停止,请问这是啥问题?应该无限调用啊!
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