请提供一个代码，当用户单击 HomeFragment 中的下载按钮时下载 uri 文件并将下载 ui 附加到下载片段

Question

下载完成后 ui 应该需要转换为可点击的项目然后当用户点击它时用户可以打开文件。

这是我的 HomeFragment.java

package com.hackerindia.movies;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.content.Intent;
import android.widget.Toast;
import android.widget.ProgressBar;
import android.content.Context;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import com.google.android.material.snackbar.Snackbar;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.bumptech.glide.Glide;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.net.Uri;
import android.app.DownloadManager;
import android.content.Context;
import android.database.Cursor;

public class HomeFragment extends Fragment {
    private LinearLayout movieContainer;
    private RequestQueue requestQueue;
    private ProgressBar progressBar;
    private TextView statusTextView;
    private final String url = "https://example.com/App/data.json";

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
        @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_home, container, false);
        movieContainer = view.findViewById(R.id.movie_container);
        //errorTextView = view.findViewById(R.id.error_text);
        requestQueue = Volley.newRequestQueue(requireContext());
        // Fetch data from JSON endpoint using Volley
        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null,
            new Response.Listener < JSONObject > () {
                @Override
                public void onResponse(JSONObject response) {
                    try {
                        JSONArray dataArray = response.getJSONArray("data");
                        for (int i = 0; i < dataArray.length(); i++) {
                            JSONObject movieObject = dataArray.getJSONObject(i);
                            String movieTame = movieObject.getString("movie_name");
                            boolean isPlaying = Boolean.parseBoolean(movieObject.getString("is_playing"));
                            if (isPlaying) {
                                // Append movie poster, title, and two buttons if is_playing is true
                                String movieName = movieObject.getString("movie_name");
                                String moviePosterUrl = movieObject.getString("movie_poster");
                                String downloadLink = movieObject.getString("download_link");
                                String movieSrc = movieObject.getString("movie_src");
                                // Create movie item view
                                View movieItemView = inflater.inflate(R.layout.movie_item, null);
                                ImageView moviePoster = movieItemView.findViewById(R.id.movie_poster);
                                TextView movieTitle = movieItemView.findViewById(R.id.movie_title);
                                Button downloadButton = movieItemView.findViewById(R.id.download_button);
                                Button watchOnlineButton = movieItemView.findViewById(R.id.watch_online_button);
                                // Set movie poster and title
                                Glide.with(requireContext()).load(moviePosterUrl).into(moviePoster);
                                movieTitle.setText(movieName);
                                // Set download link and movie source as tags for buttons
                                downloadButton.setTag(downloadLink);
                                watchOnlineButton.setTag(movieSrc);
                                downloadButton.setOnClickListener(new View.OnClickListener() {
                                    @Override
                                    public void onClick(View v) {
                                        // Get download link
                                        String downloadLink = (String) v.getTag();
                                    }
                                });
                                watchOnlineButton.setOnClickListener(new View.OnClickListener() {
                                    @Override
                                    public void onClick(View v) {
                                        String movieSrc = (String) v.getTag();
                                        Intent intent = new Intent(getActivity(), VideoPlayerActivity.class);
                                        intent.putExtra("movieSrc", movieSrc);
                                        startActivity(intent);
                                    }
                                });
                                // Add movie item view to movie container
                                movieContainer.addView(movieItemView);
                            }
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    error.printStackTrace();
                }
            });
        requestQueue.add(jsonObjectRequest);
        return view;
    }
}

这是我的 DownloadsFragment.java

package com.hackerindia.movies;

import android.app.DownloadManager;
import android.content.Context;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import androidx.fragment.app.Fragment;
import com.hackerindia.movies.databinding.FragmentDownloadsBinding;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

public class DownloadsFragment extends Fragment {
    View view;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        view = inflater.inflate(R.layout.fragment_downloads, container, false);
        return view;
    }
}