Save and restore whether pitch and tempo are unhooked or not

app/src/main/java/org/schabi/newpipe/player/helper/PlaybackParameterDialog.java

@@ -7,6 +7,8 @@
 import androidx.annotation.Nullable;
 import androidx.fragment.app.DialogFragment;
 import androidx.appcompat.app.AlertDialog;
+
+import android.preference.PreferenceManager;
 import android.util.Log;
 import android.view.View;
 import android.widget.CheckBox;
@@ -219,13 +221,23 @@ private void setupPitchControl(@NonNull View rootView) {
     private void setupHookingControl(@NonNull View rootView) {
         unhookingCheckbox = rootView.findViewById(R.id.unhookCheckbox);
         if (unhookingCheckbox != null) {
-            unhookingCheckbox.setChecked(pitch != tempo);
+            // restore whether pitch and tempo are unhooked or not
+            unhookingCheckbox.setChecked(PreferenceManager.getDefaultSharedPreferences(getContext())
+                    .getBoolean(getString(R.string.playback_unhook_key), true));
+
             unhookingCheckbox.setOnCheckedChangeListener((compoundButton, isChecked) -> {
-                if (isChecked) return;
-                // When unchecked, slide back to the minimum of current tempo or pitch
-                final double minimum = Math.min(getCurrentPitch(), getCurrentTempo());
-                setSliders(minimum);
-                setCurrentPlaybackParameters();
+                // save whether pitch and tempo are unhooked or not
+                PreferenceManager.getDefaultSharedPreferences(getContext())
+                        .edit()
+                        .putBoolean(getString(R.string.playback_unhook_key), isChecked)
+                        .apply();
+
+                if (!isChecked) {
+                    // when unchecked, slide back to the minimum of current tempo or pitch
+                    final double minimum = Math.min(getCurrentPitch(), getCurrentTempo());
+                    setSliders(minimum);
+                    setCurrentPlaybackParameters();
+                }
             });
         }
     }

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

@@ -175,6 +175,7 @@
     <string name="main_page_content_key" translatable="false">main_page_content</string>
     <string name="enable_playback_resume_key" translatable="false">enable_playback_resume</string>
     <string name="enable_playback_state_lists_key" translatable="false">enable_playback_state_lists</string>
+    <string name="playback_unhook_key" translatable="false">playback_unhook_key</string>
 
     <string name="app_language_key" translatable="false">app_language_key</string>
     <string name="enable_lock_screen_video_thumbnail_key" translatable="false">enable_lock_screen_video_thumbnail</string>

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

@@ -492,7 +492,7 @@
     <string name="playback_speed_control">Playback Speed Controls</string>
     <string name="playback_tempo">Tempo</string>
     <string name="playback_pitch">Pitch</string>
-    <string name="unhook_checkbox">Unlink (may cause distortion)</string>
+    <string name="unhook_checkbox">Unhook (may cause distortion)</string>
     <string name="skip_silence_checkbox">Fast-forward during silence</string>
     <string name="playback_step">Step</string>
     <string name="playback_reset">Reset</string>