毕加索图片未在首次运行时加载 [英] Picasso image is not loading on first run

问题描述

我正在使用毕加索从URL加载图像.由于我需要位图进行进一步处理，因此我使用Target()类保存位图.但是毕加索并没有在第一次运行时加载图像.但是它在我进行另一项活动并回到毕加索实现的活动时加载.为什么会这样呢?有任何解决办法吗?我的代码在下面，

I am using picasso to load image from a url. Since i needed bitmap for further processing, I am using Target() class for saving the bitmap. But picasso is not loading the image on the first run. But it loads at the time when i goes to another activity and getting back to the picasso implemented activity. Why it is happening ? Any fixes? My code is below,

 Picasso.with(getActivity()).load(card.getExtras().getImageUrl()).into(new Target() {
                        @Override
                        public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                            SimpleDateFormat formatter = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");
                            Date now = new Date();
                            filename ="certificate_"+ formatter.format(now) + ".png";

                            File path=null;
                            if (getActivity().getExternalCacheDir()==null) {

                               path=getActivity().getCacheDir();
                            }
                            if(getActivity().getExternalCacheDir()!=null){
                                path=getActivity().getExternalCacheDir();
                            }
                           File  image=new  File(path+filename);
                            FileOutputStream fileOutPutStream = null;
                            try {
                                fileOutPutStream = new FileOutputStream(image);
                                bitmap.compress(Bitmap.CompressFormat.PNG, 80, fileOutPutStream);

                                fileOutPutStream.flush();
                                fileOutPutStream.close();
                                Log.d("---REACHED","FILE SAVED--------------");
                            } catch (Exception e) {

                                Crashlytics.logException(e);
                            }

推荐答案

这是一个已知问题，因为毕加索只保留一周参考:

Its a known issue, as picasso only keeps a week reference:

解决此问题的方法是将目标设置为要设置的视图组件的tag.

A solution to this issue would be to set the target as a tag to the view component you wish to set.

因此您的代码将如下所示:

So your code will look like this:

Target target = new Target() {
                        @Override
                        public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                           .....
// set the tag to the view
holder.imageView.setTag(target);

//set the target to picasso
Picasso.with(getActivity()).load(card.getExtras().getImageUrl()).into(target);

此发布！

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