Question

我有一个NetworkImageView，但我想使用ImageView来缓存图像，而不是一直从网络上获取它。

任何想法如何改变它？

  class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        //Views
        public NetworkImageView imageView;
        public TextView textViewName;
        public TextView textViewPublisher;

        //Initializing Views
        public ViewHolder(View itemView) {
            super(itemView);
            imageView = (NetworkImageView) itemView.findViewById(R.id.imageViewHero);
            textViewName = (TextView) itemView.findViewById(R.id.textViewName);
            textViewPublisher = (TextView) itemView.findViewById(R.id.textViewPublisher);
            textViewName.setClickable(true);
            textViewName.setOnClickListener(this);
        }

Answer 1

您可以使用fresco lib加载图片。它有很多功能。 https://github.com/facebook/fresco

Answer 2

结帐Picasso。易于使用，并提供缓存机制。

Answer 3

更改布局来自<NetworkImageView <ImageView，然后将public NetworkImageView imageView;的{{1}}和public ImageView imageView;的{{1}}更改为imageView = (NetworkImageView) itemView.findViewById(R.id.imageViewHero);

希望这可以帮助你

您无法直接在ImageView中设置图像。你必须在Bitmap中转换该图像，然后设置

imageView = (ImageView) itemView.findViewById(R.id.imageViewHero);

然后设置为imageview：

public static Bitmap getBitmapFromURL(String src) {
    try {
        Log.e("src",src);
        URL url = new URL(src);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.connect();
        InputStream input = connection.getInputStream();
        Bitmap myBitmap = BitmapFactory.decodeStream(input);
        Log.e("Bitmap","returned");
        return myBitmap;
    } catch (IOException e) {
        e.printStackTrace();
        Log.e("Exception",e.getMessage());
        return null;
    }
}

将NetworkImageView更改为ImageView？

3 个答案: