我试图让有点类似Facebook或Instagram的时间表。更接近的Instagram。在图像加载我使用的库UniversalImageLoader。我的每一个ListView项的行可能超过600dp的高度。通常我取5个项目在同一时间。

现在出现的问题是，当滚动快了一点互相替代的影像。由于意见被重用。大约需要3-4秒的图像显示出来，否则错误的图像将在ListView的行显示。

1。如果任何人都可以知道如何优化/修复这个快速滚动ImageOverlap问题除此以外，2 - 什么是记录EntireView，让我们在一些的ArrayList，并把它在当前位置说的方式。他指出，有相当多其他的东西发生得，不仅mediaDp被改变。

 如果（convertView == NULL）    {        鉴于= inflator.inflate（R.layout.timeline_list_row，父母，假）;        viewHolder.userDp =（RoundedImageView）view.findViewById（R.id.userDp）;        viewHolder.mediaDp =（ImageView的）view.findViewById（R.id.imagePostedMedia）;        / ************组保持与LayoutInflater ************ /        view.setTag（viewHolder）;        最后ViewHolder newHolder = viewHolder;    }    其他        viewHolder =（ViewHolder）view.getTag（）;    imageLoader.displayImage（media.imagePath，viewHolder.mediaDp）; 

解决方案

尝试为ImageView的设置位选项如下：

  DisplayImageOptions选项=新DisplayImageOptions.Builder（）                        .showImageOnLoading（R.drawable.ic_stub）                        .showImageForEmptyUri（R.drawable.ic_empty）                        .showImageOnFail（R.drawable.ic_error）                        .cacheInMemory（真）                        .cacheOnDisc（真）                        .considerExifParams（真）                        。建立（）; 

和现在尝试diplay到的ImageView为

  imageLoader.displayImage（imageUrls [位置]，holder.image，期权）; 

我相信这会工作。

查看code cacheInMemory（真）属性的显示选项是非常重要的。

I am trying to make a TimeLine somewhat similar to Facebook or Instagram. More closer to Instagram. In Images loading i am using library UniversalImageLoader. Each of my ListView item row is probably more than 600dp in height. Usually I am fetching 5 items at a time.

The problem that occurs now is, The images when scroll a little fast replace each other. Since the views are being reused. It takes about 3-4 seconds for images to show up otherwise wrong images will be displayed in listView Row.

1- If anyone can know how to optimise/fix this fast scroll ImageOverlap issue Otherwise, 2- What is the way to record EntireView , let's say in some "ArrayList" and placing it at current position. Noting that there are quite other stuff happening too , not only mediaDp being changed.

    if (convertView == null)
    {
        view = inflator.inflate(R.layout.timeline_list_row, parent, false);
        viewHolder.userDp = (RoundedImageView) view.findViewById(R.id.userDp);

        viewHolder.mediaDp = (ImageView) view.findViewById(R.id.imagePostedMedia);

        /************ Set holder with LayoutInflater ************/
        view.setTag(viewHolder);
        final ViewHolder newHolder = viewHolder;

    }
    else
        viewHolder = (ViewHolder) view.getTag();

    imageLoader.displayImage(media.imagePath, viewHolder.mediaDp);

Try setting bitmap options for the imageview as follows.

DisplayImageOptions  options = new DisplayImageOptions.Builder()
                        .showImageOnLoading(R.drawable.ic_stub)
                        .showImageForEmptyUri(R.drawable.ic_empty)
                        .showImageOnFail(R.drawable.ic_error)
                        .cacheInMemory(true)
                        .cacheOnDisc(true)
                        .considerExifParams(true)
                        .build();

and now try diplay to imageview as

imageLoader.displayImage(imageUrls[position], holder.image, options);

I am sure this will work.

See the code cacheInMemory(true) property for display options is important.