Titanium ImageView无法通过设置高度和宽度属性来缩放大小？

Question

我想要显示的图像作为我的应用程序的背景下，我尝试使用的ImageView，代码自爆：

  bg-img = TUI.create-image-view({ 
      image: ev.media 
      left: 0 
      top: 0 
      border-width: 2 
      border-color: "red" 
      # width: img-width + "px" 
      # height: img-height + "px" 
      }) 
     bg-img.width = 2754 
     bg-img.height = 4896 
     # pic-img.add bg-img 
     bg-img.add-event-listener \click, !(ev)-> 
      log \clicked-on-pic-img 
      _this.trigger \click-edit-pic-view, ev 
     # # inspect pic-img 
     _this.Els.pic-container.add bg-img 

的图像不会在屏幕apear，但如果我减bg-img的大小如下：

   bg-img = TUI.create-image-view({ 
      image: ev.media 
      left: 0 
      top: 0 
      border-width: 2 
      border-color: "red" 
      # width: img-width + "px" 
      # height: img-height + "px" 
      }) 
     bg-img.width = 2754/3 
     bg-img.height = 4896/3 
     # pic-img.add bg-img 
     bg-img.add-event-listener \click, !(ev)-> 
      log \clicked-on-pic-img 
      _this.trigger \click-edit-pic-view, ev 
     # # inspect pic-img 
     _this.Els.pic-container.add bg-img 

它不能正常运行，我不是为什么？ o（╯□╰）o 有人可以帮忙吗？谢谢！

Answer 1

我出身代码更是一泻千里，而我的目的是要动态得到photogallary一个形象，并设置IMG为查看其大小由图象来决定的背景图片： （我用的是https://github.com/6174/TiDraggable模块）

create-pic-view.bind \photo-gallery, -> 
_this = @ 
log \open-photo-gallery 
Ti.Media.open-photo-gallery({ 
    success: !(ev)-> 
     log \success-get-image-event 
     # inspect ev 
     #image size in pixels 
     img-width = ev.width 
     img-height = ev.height 
     # convertPointToView(Point point, Titanium.UI.View destinationView) : Point 
     # Translates a point from this view's coordinate system to another view's coordinate system. 
     pic-img = _this.Els.pic-img = draggable.create-view({ 
      background-image: ev.media.native-path 
      top: 0 
      left: 0 
      width: img-width 
      height: img-height 
      }) 
     pic-img.add-event-listener \click, !(ev)-> 
      log \clicked-on-pic-img 
      _this.trigger \click-edit-pic-view, ev 
     _this.Els.pic-container.add pic-img  
    })