fix conflict

app/src/main/java/org/schabi/newpipe/Downloader.java

@@ -73,6 +73,31 @@ public class Downloader implements org.schabi.newpipe.extractor.Downloader {
         mCookies = cookies;
     }
 
+    /**
+     * Get the size of the content that the url is pointing by firing a HEAD request.
+     *
+     * @param url an url pointing to the content
+     * @return the size of the content, in bytes
+     */
+    public long getContentLength(String url) throws IOException {
+        Response response = null;
+        try {
+            final Request request = new Request.Builder()
+                    .head().url(url)
+                    .addHeader("User-Agent", USER_AGENT)
+                    .build();
+            response = client.newCall(request).execute();
+
+            return Long.parseLong(response.header("Content-Length"));
+        } catch (NumberFormatException e) {
+            throw new IOException("Invalid content length", e);
+        } finally {
+            if (response != null) {
+                response.close();
+            }
+        }
+    }
+
     /**
      * Download the text file at the supplied URL as in download(String),
      * but set the HTTP header field "Accept-Language" to the supplied string.

app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java

@@ -1,56 +1,61 @@
 package org.schabi.newpipe.download;
 
+import android.content.Context;
 import android.os.Bundle;
 import android.support.annotation.IdRes;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.app.DialogFragment;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
 import android.view.LayoutInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
-import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.SeekBar;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
-import org.schabi.newpipe.extractor.MediaFormat;
 import org.schabi.newpipe.extractor.stream.AudioStream;
+import org.schabi.newpipe.extractor.stream.Stream;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.VideoStream;
-import org.schabi.newpipe.fragments.detail.SpinnerToolbarAdapter;
 import org.schabi.newpipe.settings.NewPipeSettings;
 import org.schabi.newpipe.util.FilenameUtils;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.PermissionHelper;
+import org.schabi.newpipe.util.StreamItemAdapter;
+import org.schabi.newpipe.util.StreamItemAdapter.StreamSizeWrapper;
 import org.schabi.newpipe.util.ThemeHelper;
 
-import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
+import icepick.Icepick;
+import icepick.State;
+import io.reactivex.disposables.CompositeDisposable;
 import us.shandian.giga.service.DownloadManagerService;
 
 public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheckedChangeListener, AdapterView.OnItemSelectedListener {
     private static final String TAG = "DialogFragment";
     private static final boolean DEBUG = MainActivity.DEBUG;
 
-    private static final String INFO_KEY = "info_key";
+    @State protected StreamInfo currentInfo;
-    private static final String SORTED_VIDEOS_LIST_KEY = "sorted_videos_list_key";
+    @State protected StreamSizeWrapper<AudioStream> wrappedAudioStreams = StreamSizeWrapper.empty();
-    private static final String SELECTED_VIDEO_KEY = "selected_video_key";
+    @State protected StreamSizeWrapper<VideoStream> wrappedVideoStreams = StreamSizeWrapper.empty();
-    private static final String SELECTED_AUDIO_KEY = "selected_audio_key";
+    @State protected int selectedVideoIndex = 0;
+    @State protected int selectedAudioIndex = 0;
 
-    private StreamInfo currentInfo;
+    private StreamItemAdapter<AudioStream> audioStreamsAdapter;
-    private ArrayList<VideoStream> sortedStreamVideosList;
+    private StreamItemAdapter<VideoStream> videoStreamsAdapter;
-    private int selectedVideoIndex;
+
-    private int selectedAudioIndex;
+    private CompositeDisposable disposables = new CompositeDisposable();
 
     private EditText nameEditText;
     private Spinner streamsSpinner;
@@ -58,17 +63,50 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     private TextView threadsCountTextView;
     private SeekBar threadsSeekBar;
 
-    public static DownloadDialog newInstance(StreamInfo info, ArrayList<VideoStream> sortedStreamVideosList, int selectedVideoIndex) {
+    public static DownloadDialog newInstance(StreamInfo info) {
         DownloadDialog dialog = new DownloadDialog();
-        dialog.setInfo(info, sortedStreamVideosList, selectedVideoIndex);
+        dialog.setInfo(info);
-        dialog.setStyle(DialogFragment.STYLE_NO_TITLE, 0);
         return dialog;
     }
 
-    private void setInfo(StreamInfo info, ArrayList<VideoStream> sortedStreamVideosList, int selectedVideoIndex) {
+    public static DownloadDialog newInstance(Context context, StreamInfo info) {
+        final ArrayList<VideoStream> streamsList = new ArrayList<>(ListHelper.getSortedStreamVideosList(context,
+                info.getVideoStreams(), info.getVideoOnlyStreams(), false));
+        final int selectedStreamIndex = ListHelper.getDefaultResolutionIndex(context, streamsList);
+
+        final DownloadDialog instance = newInstance(info);
+        instance.setVideoStreams(streamsList);
+        instance.setSelectedVideoStream(selectedStreamIndex);
+        instance.setAudioStreams(info.getAudioStreams());
+        return instance;
+    }
+
+    private void setInfo(StreamInfo info) {
         this.currentInfo = info;
+    }
+
+    public void setAudioStreams(List<AudioStream> audioStreams) {
+        setAudioStreams(new StreamSizeWrapper<>(audioStreams));
+    }
+
+    public void setAudioStreams(StreamSizeWrapper<AudioStream> wrappedAudioStreams) {
+        this.wrappedAudioStreams = wrappedAudioStreams;
+    }
+
+    public void setVideoStreams(List<VideoStream> videoStreams) {
+        setVideoStreams(new StreamSizeWrapper<>(videoStreams));
+    }
+
+    public void setVideoStreams(StreamSizeWrapper<VideoStream> wrappedVideoStreams) {
+        this.wrappedVideoStreams = wrappedVideoStreams;
+    }
+
+    public void setSelectedVideoStream(int selectedVideoIndex) {
         this.selectedVideoIndex = selectedVideoIndex;
-        this.sortedStreamVideosList = sortedStreamVideosList;
+    }
+
+    public void setSelectedAudioStream(int selectedAudioIndex) {
+        this.selectedAudioIndex = selectedAudioIndex;
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -84,28 +122,21 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
             return;
         }
 
-        if (savedInstanceState != null) {
+        setStyle(STYLE_NO_TITLE, ThemeHelper.getDialogTheme(getContext()));
-            Serializable serial = savedInstanceState.getSerializable(INFO_KEY);
+        Icepick.restoreInstanceState(this, savedInstanceState);
-            if (serial instanceof StreamInfo) currentInfo = (StreamInfo) serial;
 
-            serial = savedInstanceState.getSerializable(SORTED_VIDEOS_LIST_KEY);
+        this.videoStreamsAdapter = new StreamItemAdapter<>(getContext(), wrappedVideoStreams, true);
-            if (serial instanceof ArrayList) { //noinspection unchecked
+        this.audioStreamsAdapter = new StreamItemAdapter<>(getContext(), wrappedAudioStreams);
-                sortedStreamVideosList = (ArrayList<VideoStream>) serial;
-            }
-
-            selectedVideoIndex = savedInstanceState.getInt(SELECTED_VIDEO_KEY, 0);
-            selectedAudioIndex = savedInstanceState.getInt(SELECTED_AUDIO_KEY, 0);
-        }
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         if (DEBUG) Log.d(TAG, "onCreateView() called with: inflater = [" + inflater + "], container = [" + container + "], savedInstanceState = [" + savedInstanceState + "]");
-        return inflater.inflate(R.layout.dialog_url, container);
+        return inflater.inflate(R.layout.download_dialog, container);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
         nameEditText = view.findViewById(R.id.file_name);
         nameEditText.setText(FilenameUtils.createFilename(getContext(), currentInfo.getName()));
@@ -116,12 +147,12 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
 
         threadsCountTextView = view.findViewById(R.id.threads_count);
         threadsSeekBar = view.findViewById(R.id.threads);
+
         radioVideoAudioGroup = view.findViewById(R.id.video_audio_group);
         radioVideoAudioGroup.setOnCheckedChangeListener(this);
 
-        initToolbar(view.<Toolbar>findViewById(R.id.toolbar));
+        initToolbar(view.findViewById(R.id.toolbar));
-        checkDownloadOptions(view);
+        setupDownloadOptions();
-        setupVideoSpinner(sortedStreamVideosList, streamsSpinner);
 
         int def = 3;
         threadsCountTextView.setText(String.valueOf(def));
@@ -141,15 +172,35 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
             public void onStopTrackingTouch(SeekBar p1) {
             }
         });
+
+        fetchStreamsSize();
+    }
+
+    private void fetchStreamsSize() {
+        disposables.clear();
+
+        disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedVideoStreams).subscribe(result -> {
+            if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.video_button) {
+                setupVideoSpinner();
+            }
+        }));
+        disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedAudioStreams).subscribe(result -> {
+            if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.audio_button) {
+                setupAudioSpinner();
+            }
+        }));
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        disposables.clear();
     }
 
     @Override
     public void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
-        outState.putSerializable(INFO_KEY, currentInfo);
+        Icepick.saveInstanceState(this, outState);
-        outState.putSerializable(SORTED_VIDEOS_LIST_KEY, sortedStreamVideosList);
-        outState.putInt(SELECTED_VIDEO_KEY, selectedVideoIndex);
-        outState.putInt(SELECTED_AUDIO_KEY, selectedAudioIndex);
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -161,39 +212,31 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         toolbar.setTitle(R.string.download_dialog_title);
         toolbar.setNavigationIcon(ThemeHelper.isLightThemeSelected(getActivity()) ? R.drawable.ic_arrow_back_black_24dp : R.drawable.ic_arrow_back_white_24dp);
         toolbar.inflateMenu(R.menu.dialog_url);
-        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
+        toolbar.setNavigationOnClickListener(v -> getDialog().dismiss());
-            @Override
-            public void onClick(View v) {
-                getDialog().dismiss();
-            }
-        });
 
-        toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
+        toolbar.setOnMenuItemClickListener(item -> {
-            @Override
+            if (item.getItemId() == R.id.okay) {
-            public boolean onMenuItemClick(MenuItem item) {
+                downloadSelected();
-                if (item.getItemId() == R.id.okay) {
+                return true;
-                    downloadSelected();
-                    return true;
-                } else return false;
             }
+            return false;
         });
     }
 
-    public void setupAudioSpinner(final List<AudioStream> audioStreams, Spinner spinner) {
+    private void setupAudioSpinner() {
-        String[] items = new String[audioStreams.size()];
+        if (getContext() == null) return;
-        for (int i = 0; i < audioStreams.size(); i++) {
-            AudioStream audioStream = audioStreams.get(i);
-            items[i] = audioStream.getFormat().getName() + " " + audioStream.getAverageBitrate() + "kbps";
-        }
 
-        ArrayAdapter<String> itemAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_dropdown_item, items);
+        streamsSpinner.setAdapter(audioStreamsAdapter);
-        spinner.setAdapter(itemAdapter);
+        streamsSpinner.setSelection(selectedAudioIndex);
-        spinner.setSelection(selectedAudioIndex);
+        setRadioButtonsState(true);
     }
 
-    public void setupVideoSpinner(final List<VideoStream> videoStreams, Spinner spinner) {
+    private void setupVideoSpinner() {
-        spinner.setAdapter(new SpinnerToolbarAdapter(getContext(), videoStreams, true));
+        if (getContext() == null) return;
-        spinner.setSelection(selectedVideoIndex);
+
+        streamsSpinner.setAdapter(videoStreamsAdapter);
+        streamsSpinner.setSelection(selectedVideoIndex);
+        setRadioButtonsState(true);
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -205,10 +248,10 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         if (DEBUG) Log.d(TAG, "onCheckedChanged() called with: group = [" + group + "], checkedId = [" + checkedId + "]");
         switch (checkedId) {
             case R.id.audio_button:
-                setupAudioSpinner(currentInfo.getAudioStreams(), streamsSpinner);
+                setupAudioSpinner();
                 break;
             case R.id.video_button:
-                setupVideoSpinner(sortedStreamVideosList, streamsSpinner);
+                setupVideoSpinner();
                 break;
         }
     }
@@ -238,37 +281,53 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     // Utils
     //////////////////////////////////////////////////////////////////////////*/
 
-    protected void checkDownloadOptions(View view) {
+    protected void setupDownloadOptions() {
-        RadioButton audioButton = view.findViewById(R.id.audio_button);
+        setRadioButtonsState(false);
-        RadioButton videoButton = view.findViewById(R.id.video_button);
 
-        if (currentInfo.getAudioStreams() == null || currentInfo.getAudioStreams().size() == 0) {
+        final RadioButton audioButton = radioVideoAudioGroup.findViewById(R.id.audio_button);
-            audioButton.setVisibility(View.GONE);
+        final RadioButton videoButton = radioVideoAudioGroup.findViewById(R.id.video_button);
+        final boolean isVideoStreamsAvailable = videoStreamsAdapter.getCount() > 0;
+        final boolean isAudioStreamsAvailable = audioStreamsAdapter.getCount() > 0;
+
+        audioButton.setVisibility(isAudioStreamsAvailable ? View.VISIBLE : View.GONE);
+        videoButton.setVisibility(isVideoStreamsAvailable ? View.VISIBLE : View.GONE);
+
+        if (isVideoStreamsAvailable) {
             videoButton.setChecked(true);
-        } else if (sortedStreamVideosList == null || sortedStreamVideosList.size() == 0) {
+            setupVideoSpinner();
-            videoButton.setVisibility(View.GONE);
+        } else if (isAudioStreamsAvailable) {
             audioButton.setChecked(true);
+            setupAudioSpinner();
+        } else {
+            Toast.makeText(getContext(), R.string.no_streams_available_download, Toast.LENGTH_SHORT).show();
+            getDialog().dismiss();
         }
     }
 
+    private void setRadioButtonsState(boolean enabled) {
+        radioVideoAudioGroup.findViewById(R.id.audio_button).setEnabled(enabled);
+        radioVideoAudioGroup.findViewById(R.id.video_button).setEnabled(enabled);
+    }
 
     private void downloadSelected() {
-        String url, location;
+        Stream stream;
+        String location;
 
         String fileName = nameEditText.getText().toString().trim();
         if (fileName.isEmpty()) fileName = FilenameUtils.createFilename(getContext(), currentInfo.getName());
 
         boolean isAudio = radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.audio_button;
         if (isAudio) {
-            url = currentInfo.getAudioStreams().get(selectedAudioIndex).getUrl();
+            stream = audioStreamsAdapter.getItem(selectedAudioIndex);
             location = NewPipeSettings.getAudioDownloadPath(getContext());
-            fileName += "." + currentInfo.getAudioStreams().get(selectedAudioIndex).getFormat().getSuffix();
         } else {
-            url = sortedStreamVideosList.get(selectedVideoIndex).getUrl();
+            stream = videoStreamsAdapter.getItem(selectedVideoIndex);
             location = NewPipeSettings.getVideoDownloadPath(getContext());
-            fileName += "." + sortedStreamVideosList.get(selectedVideoIndex).getFormat().getSuffix();
         }
 
+        String url = stream.getUrl();
+        fileName += "." + stream.getFormat().getSuffix();
+
         DownloadManagerService.startMission(getContext(), url, location, fileName, isAudio, threadsSeekBar.getProgress() + 1);
         getDialog().dismiss();
     }

app/src/main/java/org/schabi/newpipe/fragments/detail/SpinnerToolbarAdapter.java

@@ -1,74 +0,0 @@
-package org.schabi.newpipe.fragments.detail;
-
-import android.content.Context;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.BaseAdapter;
-import android.widget.ImageView;
-import android.widget.Spinner;
-import android.widget.TextView;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.extractor.MediaFormat;
-import org.schabi.newpipe.extractor.stream.VideoStream;
-
-import java.util.List;
-
-public class SpinnerToolbarAdapter extends BaseAdapter {
-    private final List<VideoStream> videoStreams;
-    private final boolean showIconNoAudio;
-
-    private final Context context;
-
-    public SpinnerToolbarAdapter(Context context, List<VideoStream> videoStreams, boolean showIconNoAudio) {
-        this.context = context;
-        this.videoStreams = videoStreams;
-        this.showIconNoAudio = showIconNoAudio;
-    }
-
-    @Override
-    public int getCount() {
-        return videoStreams.size();
-    }
-
-    @Override
-    public Object getItem(int position) {
-        return videoStreams.get(position);
-    }
-
-    @Override
-    public long getItemId(int position) {
-        return position;
-    }
-
-    @Override
-    public View getDropDownView(int position, View convertView, ViewGroup parent) {
-        return getCustomView(position, convertView, parent, true);
-    }
-
-    @Override
-    public View getView(int position, View convertView, ViewGroup parent) {
-        return getCustomView(((Spinner) parent).getSelectedItemPosition(), convertView, parent, false);
-    }
-
-    private View getCustomView(int position, View convertView, ViewGroup parent, boolean isDropdownItem) {
-        if (convertView == null) {
-            convertView = LayoutInflater.from(context).inflate(R.layout.resolutions_spinner_item, parent, false);
-        }
-
-        ImageView woSoundIcon = convertView.findViewById(R.id.wo_sound_icon);
-        TextView text = convertView.findViewById(android.R.id.text1);
-        VideoStream item = (VideoStream) getItem(position);
-        text.setText(item.getFormat().getName() + " " + item.getResolution());
-
-        int visibility = !showIconNoAudio ? View.GONE
-                : item.isVideoOnly ? View.VISIBLE
-                : isDropdownItem ? View.INVISIBLE
-                : View.GONE;
-        woSoundIcon.setVisibility(visibility);
-
-        return convertView;
-    }
-
-}

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -12,6 +12,7 @@ import android.preference.PreferenceManager;
 import android.support.annotation.DrawableRes;
 import android.support.annotation.FloatRange;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.v4.content.ContextCompat;
 import android.support.v4.view.animation.FastOutSlowInInterpolator;
 import android.support.v7.app.ActionBar;
@@ -61,6 +62,8 @@ import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.BaseStateFragment;
+import org.schabi.newpipe.util.StreamItemAdapter;
+import org.schabi.newpipe.util.StreamItemAdapter.StreamSizeWrapper;
 import org.schabi.newpipe.fragments.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
 import org.schabi.newpipe.info_list.InfoItemDialog;
@@ -83,9 +86,9 @@ import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import java.io.Serializable;
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.LinkedList;
+import java.util.List;
 
 import icepick.State;
 import io.reactivex.Single;
@@ -107,8 +110,6 @@ public class VideoDetailFragment
     // Amount of videos to show on start
     private static final int INITIAL_RELATED_VIDEOS = 8;
 
-    private ArrayList<VideoStream> sortedStreamVideosList;
-
     private InfoItemBuilder infoItemBuilder = null;
 
     private int updateFlags = 0;
@@ -120,18 +121,16 @@ public class VideoDetailFragment
     private boolean showRelatedStreams;
     private boolean wasRelatedStreamsExpanded = false;
 
-    @State
+    @State protected int serviceId = Constants.NO_SERVICE_ID;
-    protected int serviceId = Constants.NO_SERVICE_ID;
+    @State protected String name;
-    @State
+    @State protected String url;
-    protected String name;
-    @State
-    protected String url;
 
     private StreamInfo currentInfo;
     private Disposable currentWorker;
     private CompositeDisposable disposables = new CompositeDisposable();
 
-    private int selectedVideoStream = -1;
+    private List<VideoStream> sortedVideoStreams;
+    private int selectedVideoStreamIndex = -1;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Views
@@ -708,27 +707,25 @@ public class VideoDetailFragment
 
     private void setupActionBar(final StreamInfo info) {
         if (DEBUG) Log.d(TAG, "setupActionBarHandler() called with: info = [" + info + "]");
-        sortedStreamVideosList = new ArrayList<>(ListHelper.getSortedStreamVideosList(
-                activity, info.getVideoStreams(), info.getVideoOnlyStreams(), false));
-
-        selectedVideoStream = ListHelper.getDefaultResolutionIndex(activity, sortedStreamVideosList);
-
         boolean isExternalPlayerEnabled = PreferenceManager.getDefaultSharedPreferences(activity)
                 .getBoolean(activity.getString(R.string.use_external_video_player_key), false);
-        spinnerToolbar.setAdapter(new SpinnerToolbarAdapter(activity, sortedStreamVideosList,
+
-                isExternalPlayerEnabled));
+        sortedVideoStreams = ListHelper.getSortedStreamVideosList(activity, info.getVideoStreams(), info.getVideoOnlyStreams(), false);
-        spinnerToolbar.setSelection(selectedVideoStream);
+        selectedVideoStreamIndex = ListHelper.getDefaultResolutionIndex(activity, sortedVideoStreams);
+
+        final StreamItemAdapter<VideoStream> streamsAdapter = new StreamItemAdapter<>(activity, new StreamSizeWrapper<>(sortedVideoStreams), isExternalPlayerEnabled);
+        spinnerToolbar.setAdapter(streamsAdapter);
+        spinnerToolbar.setSelection(selectedVideoStreamIndex);
         spinnerToolbar.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
             @Override
             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-                selectedVideoStream = position;
+                selectedVideoStreamIndex = position;
             }
 
             @Override
             public void onNothingSelected(AdapterView<?> parent) {
             }
         });
-
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -940,8 +937,9 @@ public class VideoDetailFragment
         this.autoPlayEnabled = autoplay;
     }
 
+    @Nullable
     private VideoStream getSelectedVideoStream() {
-        return sortedStreamVideosList.get(selectedVideoStream);
+        return sortedVideoStreams != null ? sortedVideoStreams.get(selectedVideoStreamIndex) : null;
     }
 
     private void prepareDescription(final String descriptionHtml) {
@@ -1216,18 +1214,19 @@ public class VideoDetailFragment
 
 
     public void openDownloadDialog() {
-        try {
+            try {
-            DownloadDialog downloadDialog =
+                DownloadDialog downloadDialog = DownloadDialog.newInstance(currentInfo);
-                    DownloadDialog.newInstance(currentInfo,
+                downloadDialog.setVideoStreams(sortedVideoStreams);
-                            sortedStreamVideosList,
+                downloadDialog.setAudioStreams(currentInfo.getAudioStreams());
-                            selectedVideoStream);
+                downloadDialog.setSelectedVideoStream(selectedVideoStreamIndex);
-            downloadDialog.show(activity.getSupportFragmentManager(), "downloadDialog");
+
-        } catch (Exception e) {
+                downloadDialog.show(activity.getSupportFragmentManager(), "downloadDialog");
-            Toast.makeText(activity,
+            } catch (Exception e) {
-                    R.string.could_not_setup_download_menu,
+                Toast.makeText(activity,
-                    Toast.LENGTH_LONG).show();
+                        R.string.could_not_setup_download_menu,
-            e.printStackTrace();
+                        Toast.LENGTH_LONG).show();
-        }
+                e.printStackTrace();
+            }
     }
 
     /*//////////////////////////////////////////////////////////////////////////

app/src/main/java/org/schabi/newpipe/util/StreamItemAdapter.java

@@ -0,0 +1,196 @@
+package org.schabi.newpipe.util;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import org.schabi.newpipe.Downloader;
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.stream.AudioStream;
+import org.schabi.newpipe.extractor.stream.Stream;
+import org.schabi.newpipe.extractor.stream.VideoStream;
+
+import java.io.Serializable;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.Callable;
+
+import io.reactivex.Single;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+import us.shandian.giga.util.Utility;
+
+/**
+ * A list adapter for a list of {@link Stream streams}, currently supporting {@link VideoStream} and {@link AudioStream}.
+ */
+public class StreamItemAdapter<T extends Stream> extends BaseAdapter {
+    private final Context context;
+
+    private StreamSizeWrapper<T> streamsWrapper;
+    private final boolean showIconNoAudio;
+
+    public StreamItemAdapter(Context context, StreamSizeWrapper<T> streamsWrapper, boolean showIconNoAudio) {
+        this.context = context;
+        this.streamsWrapper = streamsWrapper;
+        this.showIconNoAudio = showIconNoAudio;
+    }
+
+    public StreamItemAdapter(Context context, StreamSizeWrapper<T> streamsWrapper) {
+        this(context, streamsWrapper, false);
+    }
+
+    public List<T> getAll() {
+        return streamsWrapper.getStreamsList();
+    }
+
+    @Override
+    public int getCount() {
+        return streamsWrapper.getStreamsList().size();
+    }
+
+    @Override
+    public T getItem(int position) {
+        return streamsWrapper.getStreamsList().get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getDropDownView(int position, View convertView, ViewGroup parent) {
+        return getCustomView(position, convertView, parent, true);
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        return getCustomView(((Spinner) parent).getSelectedItemPosition(), convertView, parent, false);
+    }
+
+    private View getCustomView(int position, View convertView, ViewGroup parent, boolean isDropdownItem) {
+        if (convertView == null) {
+            convertView = LayoutInflater.from(context).inflate(R.layout.stream_quality_item, parent, false);
+        }
+
+        final ImageView woSoundIconView = convertView.findViewById(R.id.wo_sound_icon);
+        final TextView formatNameView = convertView.findViewById(R.id.stream_format_name);
+        final TextView qualityView = convertView.findViewById(R.id.stream_quality);
+        final TextView sizeView = convertView.findViewById(R.id.stream_size);
+
+        final T stream = getItem(position);
+
+        int woSoundIconVisibility = View.GONE;
+        String qualityString;
+
+        if (stream instanceof VideoStream) {
+            qualityString = ((VideoStream) stream).getResolution();
+
+            if (!showIconNoAudio) {
+                woSoundIconVisibility = View.GONE;
+            } else if (((VideoStream) stream).isVideoOnly()) {
+                woSoundIconVisibility = View.VISIBLE;
+            } else if (isDropdownItem) {
+                woSoundIconVisibility = View.INVISIBLE;
+            }
+        } else if (stream instanceof AudioStream) {
+            qualityString = ((AudioStream) stream).getAverageBitrate() + "kbps";
+        } else {
+            qualityString = stream.getFormat().getSuffix();
+        }
+
+        if (streamsWrapper.getSizeInBytes(position) > 0) {
+            sizeView.setText(streamsWrapper.getFormattedSize(position));
+            sizeView.setVisibility(View.VISIBLE);
+        } else {
+            sizeView.setVisibility(View.GONE);
+        }
+
+        formatNameView.setText(stream.getFormat().getName());
+        qualityView.setText(qualityString);
+        woSoundIconView.setVisibility(woSoundIconVisibility);
+
+        return convertView;
+    }
+
+    /**
+     * A wrapper class that includes a way of storing the stream sizes.
+     */
+    public static class StreamSizeWrapper<T extends Stream> implements Serializable {
+        private static final StreamSizeWrapper<Stream> EMPTY = new StreamSizeWrapper<>(Collections.emptyList());
+        private final List<T> streamsList;
+        private long[] streamSizes;
+
+        public StreamSizeWrapper(List<T> streamsList) {
+            this.streamsList = streamsList;
+            this.streamSizes = new long[streamsList.size()];
+
+            for (int i = 0; i < streamSizes.length; i++) streamSizes[i] = -1;
+        }
+
+        /**
+         * Helper method to fetch the sizes of all the streams in a wrapper.
+         *
+         * @param streamsWrapper the wrapper
+         * @return a {@link Single} that returns a boolean indicating if any elements were changed
+         */
+        public static <X extends Stream> Single<Boolean> fetchSizeForWrapper(StreamSizeWrapper<X> streamsWrapper) {
+            final Callable<Boolean> fetchAndSet = () -> {
+                boolean hasChanged = false;
+                for (X stream : streamsWrapper.getStreamsList()) {
+                    if (streamsWrapper.getSizeInBytes(stream) > 0) {
+                        continue;
+                    }
+
+                    final long contentLength = Downloader.getInstance().getContentLength(stream.getUrl());
+                    streamsWrapper.setSize(stream, contentLength);
+                    hasChanged = true;
+                }
+                return hasChanged;
+            };
+
+            return Single.fromCallable(fetchAndSet)
+                    .subscribeOn(Schedulers.io())
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .onErrorReturnItem(true);
+        }
+
+        public List<T> getStreamsList() {
+            return streamsList;
+        }
+
+        public long getSizeInBytes(int streamIndex) {
+            return streamSizes[streamIndex];
+        }
+
+        public long getSizeInBytes(T stream) {
+            return streamSizes[streamsList.indexOf(stream)];
+        }
+
+        public String getFormattedSize(int streamIndex) {
+            return Utility.formatBytes(getSizeInBytes(streamIndex));
+        }
+
+        public String getFormattedSize(T stream) {
+            return Utility.formatBytes(getSizeInBytes(stream));
+        }
+
+        public void setSize(int streamIndex, long sizeInBytes) {
+            streamSizes[streamIndex] = sizeInBytes;
+        }
+
+        public void setSize(T stream, long sizeInBytes) {
+            streamSizes[streamsList.indexOf(stream)] = sizeInBytes;
+        }
+
+        public static <X extends Stream> StreamSizeWrapper<X> empty() {
+            //noinspection unchecked
+            return (StreamSizeWrapper<X>) EMPTY;
+        }
+    }
+}

app/src/main/res/layout/download_dialog.xml

@@ -35,8 +35,8 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@+id/file_name"
-        android:layout_marginLeft="20dp"
         android:layout_marginBottom="6dp"
+        android:layout_marginLeft="20dp"
         android:gravity="left"
         android:orientation="horizontal"
         tools:ignore="RtlHardcoded">
@@ -59,12 +59,12 @@
         android:id="@+id/quality_spinner"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:minWidth="150dp"
         android:layout_below="@+id/video_audio_group"
         android:layout_marginBottom="12dp"
         android:layout_marginLeft="20dp"
         android:layout_marginRight="20dp"
-        tools:listitem="@layout/resolutions_spinner_item"/>
+        android:minWidth="150dp"
+        tools:listitem="@layout/stream_quality_item"/>
 
     <TextView
         android:id="@+id/threads_text_view"
@@ -82,8 +82,8 @@
         android:layout_below="@+id/threads_text_view"
         android:layout_marginLeft="24dp"
         android:layout_marginRight="24dp"
-        android:paddingBottom="12dp"
+        android:orientation="horizontal"
-        android:orientation="horizontal">
+        android:paddingBottom="12dp">
 
         <TextView
             android:id="@+id/threads_count"

app/src/main/res/layout/resolutions_spinner_item.xml

@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="48dp">
-
-    <ImageView
-        android:id="@+id/wo_sound_icon"
-        android:layout_width="20dp"
-        android:layout_height="match_parent"
-        android:layout_alignParentLeft="true"
-        android:layout_centerVertical="true"
-        android:layout_marginLeft="4dp"
-        android:scaleType="fitCenter"
-        android:src="?attr/volume_off"
-        tools:ignore="ContentDescription,RtlHardcoded"/>
-
-    <TextView
-        android:id="@android:id/text1"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_centerVertical="true"
-        android:layout_marginLeft="8dp"
-        android:layout_marginRight="8dp"
-        android:layout_toRightOf="@+id/wo_sound_icon"
-        android:ellipsize="end"
-        android:gravity="left"
-        android:maxLines="1"
-        android:textAppearance="@style/TextAppearance.AppCompat.Body1"
-        android:textSize="14sp"
-        tools:ignore="RtlHardcoded"
-        tools:text="MPEG-4 1080p60"/>
-</RelativeLayout>

app/src/main/res/layout/stream_quality_item.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="48dp">
+
+    <ImageView
+        android:id="@+id/wo_sound_icon"
+        android:layout_width="20dp"
+        android:layout_height="match_parent"
+        android:layout_alignParentLeft="true"
+        android:layout_centerVertical="true"
+        android:layout_marginLeft="6dp"
+        android:scaleType="fitCenter"
+        android:src="?attr/volume_off"
+        tools:ignore="ContentDescription,RtlHardcoded"/>
+
+    <TextView
+        android:id="@+id/stream_format_name"
+        android:layout_width="wrap_content"
+        android:layout_height="22dp"
+        android:layout_alignParentTop="true"
+        android:layout_toRightOf="@+id/wo_sound_icon"
+        android:ellipsize="end"
+        android:gravity="left|bottom"
+        android:maxLines="1"
+        android:paddingLeft="12dp"
+        android:paddingRight="18dp"
+        android:textAppearance="@style/TextAppearance.AppCompat.Caption"
+        android:textSize="12sp"
+        tools:ignore="RtlHardcoded"
+        tools:text="MPEG-4"/>
+
+    <TextView
+        android:id="@+id/stream_quality"
+        android:layout_width="wrap_content"
+        android:layout_height="26dp"
+        android:layout_alignParentBottom="true"
+        android:layout_toRightOf="@+id/wo_sound_icon"
+        android:ellipsize="end"
+        android:gravity="left|top"
+        android:maxLines="1"
+        android:paddingLeft="12dp"
+        android:paddingRight="18dp"
+        android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+        android:textSize="14sp"
+        tools:ignore="RtlHardcoded"
+        tools:text="1080p60"/>
+
+    <TextView
+        android:id="@+id/stream_size"
+        android:layout_width="wrap_content"
+        android:layout_height="48dp"
+        android:layout_alignParentRight="true"
+        android:gravity="right|center_vertical"
+        android:maxLines="1"
+        android:paddingLeft="8dp"
+        android:paddingRight="8dp"
+        android:textAppearance="@style/TextAppearance.AppCompat.Caption"
+        android:textSize="12sp"
+        android:visibility="gone"
+        tools:ignore="RtlHardcoded"
+        tools:text="123.4 MB"
+        tools:visibility="visible"/>
+</RelativeLayout>

app/src/main/res/values/strings.xml

@@ -180,6 +180,7 @@
     <string name="invalid_file">File doesn\'t exist or insufficient permission to read or write to it</string>
     <string name="file_name_empty_error">File name cannot be empty</string>
     <string name="error_occurred_detail">An error occurred: %1$s</string>
+    <string name="no_streams_available_download">No streams available to download</string>
 
     <!-- error activity -->
     <string name="sorry_string">Sorry, that should not have happened.</string>