How to set a wallpaper through image link in android programmatically?

I am trying to set as wallpaper through image link.

My Question: How to show dialog box "loading Image from server" and now "Set wallpaper". After this Pop up appear to ask user where they want to set

Current Situation: when user click the button "Set wallpaper". It only shows the dialog message and keep loading. then user need to dismiss the pop up and click again. Which means they need to click 2 times to set wallpaper. I want to make them easy to become more transparent.

Basically i want my user know which process is running in android

Here is below code

progressDialog = ProgressDialog.show(getActivity(),"Please wait...","Set as your wallpaper...",false,true);
               

                Picasso.get()
                        .load(setImgLink)
                        .into(new Target() {
                            @Override
                            public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                                WallpaperManager wallpaperManager = WallpaperManager.getInstance(getActivity());

                                try {
                                    if (bitmap != null) {
                                        wallpaperManager.setBitmap(bitmap);
                                        Snackbar.make(relative_image_slider, "Wallpaper was set", Snackbar.LENGTH_SHORT).show();
                                        progressDialog.dismiss();
                                        ct_popup.setText("Wallpaper was set");
                                        final AlertDialog.Builder builder1 = new AlertDialog.Builder(getActivity());
                                        builder1.setView(subView);
                                        builder1.setPositiveButton("Close", new DialogInterface.OnClickListener() {
                                            @Override
                                            public void onClick(DialogInterface dialog, int which) {
                                                dialog.cancel();
                                                ((ViewGroup)subView.getParent()).removeView(subView);
                                            }
                                        });
                                        builder1.setIcon(R.mipmap.ic_launcher);
                                        builder1.setCancelable(false);
                                        builder1.create();
                                        builder1.show();
                                    }else {
                                        Toast.makeText(getActivity(), "Unable to set your wallpaper !!", Toast.LENGTH_LONG).show();
                                    }


                                } catch (IOException e) {
                                    Toast.makeText(getActivity(), "Something went wrong !!", Toast.LENGTH_LONG).show();
                                    e.printStackTrace();
                                }
                            }

                            @Override
                            public void onBitmapFailed(Exception e, Drawable errorDrawable) {

                            }

                            @Override
                            public void onPrepareLoad(Drawable placeHolderDrawable) {

                            }
                        });

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