save pictures in device [Glide Library]

问题:

i'm trying to add Download Feature to my application i 'm using Glide Library to downlaod the pictures from their url This is the code from which I save an picture in device storage but not working well works fine with android 5.0.1 and 6.0.1 But in another Android version does not work well

Toast.makeText(Pop.this, "Please wait ...", Toast.LENGTH_LONG).show();
                    new AsyncTask<FutureTarget<Bitmap>, Void, Bitmap>() {
                        @Override protected Bitmap doInBackground(FutureTarget<Bitmap>... params) {
                            try {
                                return params[0].get();
                                // get needs to be called on background thread
                            } catch (Exception ex) {
                                return null;
                            }
                        }
                        @Override protected void onPostExecute(Bitmap bitmap) {
                            if(bitmap == null) return;
                            MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, "Art_"+System.currentTimeMillis(), "Beschrijving");
                        }
                    }.execute(Glide.with(getApplicationContext()).load(url).asBitmap().diskCacheStrategy(DiskCacheStrategy.SOURCE).into(width, height));

please help me

回答1:

1.Permissions in manifest file

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

2.Glide to download the image as a bitmap

Glide.with(mContext)
         .load("YOUR_URL")
         .asBitmap()
         .into(new SimpleTarget<Bitmap>(100,100) {
             @Override
             public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation)  {
                   saveImage(resource);
             }
         });

3. Save the bitmap into your memory

private String saveImage(Bitmap image) {
    String savedImagePath = null;

    String imageFileName = "JPEG_" + "FILE_NAME" + ".jpg";
    File storageDir = new File(            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
                       + "/YOUR_FOLDER_NAME");
    boolean success = true;
    if (!storageDir.exists()) {
    success = storageDir.mkdirs();
    }
    if (success) {
        File imageFile = new File(storageDir, imageFileName);
        savedImagePath = imageFile.getAbsolutePath();
        try {
            OutputStream fOut = new FileOutputStream(imageFile);
            image.compress(Bitmap.CompressFormat.JPEG, 100, fOut);
            fOut.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        // Add the image to the system gallery
        galleryAddPic(savedImagePath);
        Toast.makeText(mContext, "IMAGE SAVED", Toast.LENGTH_LONG).show();
    }
    return savedImagePath;
}

private void galleryAddPic(String imagePath) {
    Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
    File f = new File(imagePath);
    Uri contentUri = Uri.fromFile(f);
    mediaScanIntent.setData(contentUri);
    sendBroadcast(mediaScanIntent);
}

回答2:

Basing on Akshay Nandwana answer I used that code to write to internal memory:

Glide.with(context)
     .asBitmap()
     .load(url)
     .into(new SimpleTarget<Bitmap>() {
         @Override
         public void onResourceReady(Bitmap resource,Transition<? super Bitmap> transition) {
            write(fileName, resource);
         }
     });

And here is the write method:

public void write(String fileName, Bitmap bitmap) {
    FileOutputStream outputStream;
    try {
        outputStream = context.openFileOutput(fileName, Context.MODE_PRIVATE);
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
        outputStream.close();
    } catch (Exception error) {
        error.printStackTrace();
    }
}