Question

我有一个显示图像和文本列表的RecyclerView，但我想要的是当我点击图像保存到图库的任何图像时。

以下是保存图像的方法，但我无法将其连接到RecyclerView以检测要保存的每个图像。

这是我的FirebaseRecyclerView。

  public  void SaveImage(){
        imagePost.buildDrawingCache();

        Bitmap bmp = imagePost.getDrawingCache();

        File storageLoc = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); //context.getExternalFilesDir(null);

        File file = new File(storageLoc, "Pixsar" + ".jpg");

        try{
            FileOutputStream fos = new FileOutputStream(file);
            bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos);
            fos.close();

            scanFile(getApplicationContext(), Uri.fromFile(file));

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }


        Toast.makeText(getApplicationContext(),"Image Saved to gallery ",Toast.LENGTH_LONG).show();
    }
    //noinspection SimplifiableIfStatement
    private static void scanFile(Context context, Uri imageUri){
        Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        scanIntent.setData(imageUri);
        context.sendBroadcast(scanIntent);

    }

这是My ViewHolder Class

FirebaseRecyclerAdapter<Posts, BlogViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Posts, BlogViewHolder>(Posts.class,
                    R.layout.item_activity,
                    BlogViewHolder.class,
                    mDatabase) {
                @Override
                protected void populateViewHolder(BlogViewHolder viewHolder, final Posts model, final int position) {

                    final String key_post = getRef(position).getKey();
                    viewHolder.setTitle(model.getEventTitle());
                    viewHolder.setDesc(model.getEventDescription());
                    viewHolder.setImage(c, model.getEventImage());

                    final String key_post_image = getRef(position).getKey();




                }
            };

所以我希望在RecyclerView中public static class BlogViewHolder extends RecyclerView.ViewHolder{ View mView; private ImageView imagePost; private ImageView save_image_blog; public BlogViewHolder(View itemView) { super(itemView); mView=itemView; imagePost =(ImageView)mView.findViewById(R.id.post_image); save_image_blog =(ImageView)mView.findViewById(R.id.save_image_blog); }中加载的图像保存在图库中。

如何将该SavingImage方法附加到imagePost ImageView imagePost

从RecyclerView将图像保存到图库

0 个答案: