creator项目里的图片转base64_cocos creator 图像base64转码

creator项目里的图片转base64

//获取指定图片地址的base64值，
function getBase64Image(url, callback){
    var canvas = document.createElement("CANVAS");
    var ctx = canvas.getContext('2d');
    var img = new Image;
    img.crossOrigin = 'Anonymous';
    img.src = 'res/raw-assets/' + url;//如：'res/raw-assets/' + "public/skin/frame_1.png"
    img.onload = function(){
        canvas.height = img.height;
        canvas.width = img.width;
        ctx.drawImage(img, 0, 0);
        var dataURL = canvas.toDataURL('image/png');
        canvas = null;
        if( callback ) callback(dataURL);
    }
}

转自：https://forum.cocos.org/t/web-resources-base64/60759