Internal storage video downloder

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Java

Android

Hi, I am trying to download a video from url and save it in the internal app storage which can be viewed in the Downloaded Fragment. The problem is that when i click the download button video starts downloading and in notification bar downloading status also shows. But after download complete video is not appearing in the Downloaded Fragment. When i open the Downloaded Fragment there is a file name profileinstalled. this file remains there either i download or not. please help me with that.

What I have tried:

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ProgressBar;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;

import com.example.movieflix.R;
import com.example.movieflix.ui.adapters.DownloadAdapter;
import com.example.movieflix.ui.adapters.FileUtils;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class DownloadFragment extends Fragment implements FileUtils.DownloadCallback {

    private RecyclerView recyclerView;
    private DownloadAdapter adapter;
    private List<string> downloadedVideos;
    private SwipeRefreshLayout swipeRefreshLayout;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_download, container, false);
        recyclerView = view.findViewById(R.id.recyclerView_download);
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

        swipeRefreshLayout = view.findViewById(R.id.swipeRefresh_download);

        // Initialize the list of downloaded videos
        downloadedVideos = new ArrayList<>();

        // Initialize and set the adapter to the RecyclerView
        adapter = new DownloadAdapter(downloadedVideos);
        recyclerView.setAdapter(adapter);
        swipeRefreshLayout.setOnRefreshListener(this::refreshData);

        return view;
    }

    // Method to handle swipe-to-refresh action
    private void refreshData() {
        // Clear the existing list of downloaded videos
        downloadedVideos.clear();
        // Populate downloaded videos list again
        populateDownloadedVideos();
        // Notify the adapter of data change
        adapter.notifyDataSetChanged();
        // Stop the swipe-to-refresh animation
        swipeRefreshLayout.setRefreshing(false);
    }

    // Method to download a video using FileUtils and save it to internal storage
    private void downloadVideo(String videoUrl, String name) {
        FileUtils.saveVideoToInternalStorage(requireContext(), videoUrl, name, success -> {
            if (success) {
                // If download is successful, add the video path to downloadedVideos list
                String filePath = requireContext().getFilesDir() + File.separator + name;
                downloadedVideos.add(filePath);
                Log.d("DownloadFragment", "File path added: " + filePath);
                // Notify the adapter of the data change
                adapter.notifyItemInserted(downloadedVideos.size() - 1);
            } else {
                // Handle download failure
                Log.e("DownloadFragment", "Download failed for: " + name);
            }
        });
    }

    @Override
    public void onDownloadComplete(boolean success) {
        if (success) {
            // Refresh the list of downloaded videos
            populateDownloadedVideos();
            // Notify the adapter of data change
            adapter.notifyDataSetChanged();
        } else {
            // Handle download failure
            Log.e("DownloadFragment", "Download failed");
        }
    }


    // Method to populate the list of downloaded videos
    private void populateDownloadedVideos() {
        try {
            // Clear the existing list of downloaded videos
            downloadedVideos.clear();

            // Get the directory for downloaded videos
            File directory = requireContext().getFilesDir();
            if (directory != null && directory.isDirectory()) {
                // List all files in the directory
                File[] files = directory.listFiles();
                if (files != null) {
                    for (File file : files) {
                        // Add absolute path of each file to the downloadedVideos list
                        if (file.isFile()) {
                            downloadedVideos.add(file.getAbsolutePath());
                        }
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("DownloadFragment", "Error populating downloaded videos: " + e.getMessage());
        }
    }

}

----------------------

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.example.movieflix.R;

import java.io.File;
import java.util.List;

public class DownloadAdapter extends RecyclerView.Adapter<downloadadapter.viewholder> {

    private final List<string> downloadedVideos;

    public DownloadAdapter(List<string> downloadedVideos) {
        this.downloadedVideos = downloadedVideos;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_download, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        String videoPath = downloadedVideos.get(position);
        holder.bind(videoPath);
    }

    @Override
    public int getItemCount() {
        return downloadedVideos.size();
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {

        private final TextView textViewTitle;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            textViewTitle = itemView.findViewById(R.id.textViewTitle);
        }

        public void bind(String videoPath) {
            // Display video title or metadata in the item view
            textViewTitle.setText(getVideoTitleFromPath(videoPath));
        }

        private String getVideoTitleFromPath(String videoPath) {
            if (videoPath == null || videoPath.isEmpty()) {
                return "Unknown Title";
            }
            File file = new File(videoPath);
            return file.getName();
        }
    }
}

-------------------


import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class FileUtils {

    public interface DownloadCallback {
        void onDownloadComplete(boolean success);
    }

    public static void saveVideoToInternalStorage(Context context, String videoUrl, String name, DownloadCallback callback) {
        new DownloadTask(context, videoUrl, name, callback).execute();
    }

    private static class DownloadTask extends AsyncTask<void, void,="" boolean=""> {
        private final Context context;
        private final String videoUrl;
        private final String name;
        private final DownloadCallback callback;

        DownloadTask(Context context, String videoUrl, String name, DownloadCallback callback) {
            this.context = context;
            this.videoUrl = videoUrl;
            this.name = name;
            this.callback = callback;
        }

        @Override
        protected Boolean doInBackground(Void... voids) {
            try {
                URL url = new URL(videoUrl);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.connect();

                // Create a new File object for saving the video in internal storage
                File directory = context.getFilesDir(); // Use internal storage directory
                File file = new File(directory, name);

                // Create buffered streams
                InputStream inputStream = new BufferedInputStream(connection.getInputStream());
                FileOutputStream outputStream = new FileOutputStream(file);
                byte[] buffer = new byte[4096];
                int bytesRead;
                while ((bytesRead = inputStream.read(buffer)) != -1) {
                    outputStream.write(buffer, 0, bytesRead);
                }

                // Close streams
                outputStream.close();
                inputStream.close();

                return true; // Video saved successfully
            } catch (IOException e) {
                e.printStackTrace();
                return false; // Error occurred while saving video
            }
        }

        @Override
        protected void onPostExecute(Boolean success) {
            super.onPostExecute(success);
            callback.onDownloadComplete(success);
        }
    }
}