imgAdaplter.js

define(['zepto'], function() {
    
    function getDevicePixelRatio() {
        return window.devicePixelRatio ? window.devicePixelRatio : 1;
    }
    
    function getImageSize() {
        
        if(window.__NETWORK_STATUS__ == 3) {
            return "_80x80Q90.jpg";
        }
        
        var dpr = Number(getDevicePixelRatio());
            
        if (dpr == 1) {
            return "_120x120Q90.jpg";
        } else if (dpr == 1.5 || dpr == 1.3) {
            return "_180x180Q90.jpg";
        } else if (dpr >= 2) {
            return "_240x240Q90.jpg";
        }
    }

    return {
        'getImageSize': getImageSize
    }
})