配置并学习微信JS-SDK（2）—扫一扫接口http://www.qq210.com/shoutu/android

http://www.qq210.com/shoutu/android

//c_开头的js变量是服务器传过来的
var c_access_token = "<?=$access_token?>";
var c_log_url = \'<?=site_url("log/index")?>\';
var c_download_url = \'<?=site_url("download/index")?>\';
var c_timestamp = \'<?=$timestamp?>\';
var c_signature = \'<?=$signature?>\';
var c_noncestr = \'<?=$noncestr?>\';

var log_msg = function(msg){
    $.post(c_log_url, {msg:msg});        
}
  wx.config({
      debug: false, // 开启调试模式,调用的所有api的返回值会在客户端log_msg出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
      appId: \'wx693f4c620712348b\', // 必填，公众号的唯一标识
      timestamp: c_timestamp, // 必填，生成签名的时间戳
      nonceStr: c_noncestr, // 必填，生成签名的随机串
      signature: c_signature,// 必填，签名，见附录1
      jsApiList: [// 必填，需要使用的JS接口列表，所有JS接口列表见附录2
        \'checkJsApi\',
        \'hideMenuItems\',
        \'showMenuItems\',
        \'hideAllNonBaseMenuItem\',
        \'showAllNonBaseMenuItem\',
        \'translateVoice\',
        \'startRecord\',
        \'stopRecord\',
        \'onRecordEnd\',
        \'playVoice\',
        \'pauseVoice\',
        \'stopVoice\',
        \'uploadVoice\',
        \'downloadVoice\',
        \'chooseImage\',
        \'previewImage\',
        \'uploadImage\',
        \'downloadImage\',
        \'getNetworkType\',
        \'openLocation\',
        \'getLocation\',
        \'hideOptionMenu\',
        \'showOptionMenu\',
        \'closeWindow\',
        \'scanQRCode\'
      ] 
  });

// 微信
wx.error(function(res){
  log_msg(\'验证失败\');
  alert(\'验证失败\');
});

wx.ready(function(){
//1.检查扫一扫接口
    document.querySelector(\'#scanQRCode\').onclick = function() {
        log_msg(\'检查api\');
        unvaild_api = [];
        wx.checkJsApi({
            jsApiList:[
              \'scanQRCode\'
            ],
            success:function(res){
                log_msg(\'返回检查api的结果\'+JSON.stringify(res));

                $.each(res.checkResult, function(k, v) {

                    if (!v) {
                        unvaild_api.push(k);
                        return false;
                    }
                });

                if (unvaild_api.length > 0) {
                    log_msg(\'存在无效api\'+unvaild_api.join(\', \'));
                    log_msg(\'存在无效api的结果\'+unvaild_api.join(\', \'));
                    return false;
                }

                //2.扫一扫接口
                wx.scanQRCode({
                    needResult:1, // 默认为0，扫描结果由微信处理，1则直接返回扫描结果
                    success: function (res) {
                        //结果
                        alert(res.resultStr);
                    }
                });
            }
        });
    }
});