mirror of
https://github.com/Leo501/CocosCreatorTutorial.git
synced 2026-05-08 06:38:37 +08:00
45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
cc.Class({
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extends: cc.Component,
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properties: {
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},
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// use this for initialization
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onLoad() {
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this.init('http://forum.cocos.com/t/topic/44304/9');
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},
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init(url){
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//注意 最好把qrImage与qrcode的节点长宽设置为2的倍数。不然可能会出现无法识别二维码
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var ctx = this.node.addComponent(cc.Graphics);
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if (typeof (url) !== 'string') {
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console.log('url is not string',url);
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return;
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}
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this.QRCreate(ctx, url);
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},
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QRCreate(ctx, url) {
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var qrcode = new QRCode(-1, QRErrorCorrectLevel.H);
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qrcode.addData(url);
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qrcode.make();
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ctx.fillColor = cc.Color.BLACK;
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//块宽高
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var tileW = this.node.width / qrcode.getModuleCount();
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var tileH = this.node.height / qrcode.getModuleCount();
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// draw in the Graphics
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for (var row = 0; row < qrcode.getModuleCount(); row++) {
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for (var col = 0; col < qrcode.getModuleCount(); col++) {
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if (qrcode.isDark(row, col)) {
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// ctx.fillColor = cc.Color.BLACK;
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var w = (Math.ceil((col + 1) * tileW) - Math.floor(col * tileW));
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var h = (Math.ceil((row + 1) * tileW) - Math.floor(row * tileW));
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ctx.rect(Math.round(col * tileW), Math.round(row * tileH), w, h);
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ctx.fill();
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}
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}
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}
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},
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}); |