JS实现微信里判断页面是否被分享成功的方法

var shareData = {
  img_url: "",
  img_width: 200,
  img_height: 200,
  link: '',
  desc: '',
  title: '',
  appid: 0
};
document.addEventListener('WeixinJSBridgeReady', function onBridgeReady() {
  // 发送给好友
  WeixinJSBridge.on('menu:share:appmessage', function(argv){
    shareFriend();
  });
  // 分享到朋友圈
  WeixinJSBridge.on('menu:share:timeline', function(argv){
    shareTimeline();
  });
}, false);
function shareTimeline() {
  WeixinJSBridge.invoke('shareTimeline', shareData, function(res) {
    validateShare(res);
    _report('timeline', res.err_msg);
  });
}
function shareFriend() {
  WeixinJSBridge.invoke('sendAppMessage', shareData, function(res) {
    validateShare(res);
    _report('send_msg', res.err_msg);
  });
}
function validateShare(res) {
  if(res.err_msg != 'send_app_msg:cancel' && res.err_msg != 'share_timeline:cancel') {
  //分享完毕回调
  }
}