找到办法了，安卓上面得用getImageInfo 先获取到图片路径，直接的远程图片路径无法加载预览大图

代码如下，安卓机上预览大图就是黑屏，问题在哪呢
previewImage: function (e) {
    var that = this;
    var src = e.currentTarget.dataset.src;
    var imglist = [];
    for (var i = 0; i < that.data.detail.fileList.length; i++) {
      imglist.push(that.data.siteurl + '/data/attachment/forum/'+ that.data.detail.fileList[i].filename)
    }
    wx.previewImage({
      current: src,
      urls: imglist 
    })
  }