@Override
@SuppressLint("RestrictedApi")
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
  return new PreferenceGroupAdapter(preferenceScreen) {
    @Override
    public void onBindViewHolder(PreferenceViewHolder holder, int position) {
      super.onBindViewHolder(holder, position);
      Preference preference = getItem(position);
      if (preference instanceof PreferenceCategory) {
        setZeroPaddingToLayoutChildren(holder.itemView);
      } else {
        View iconFrame = holder.itemView.findViewById(R.id.icon_frame);
        if (iconFrame != null) {
          iconFrame.setVisibility(preference.getIcon() == null ? View.GONE : View.VISIBLE);
        }
      }
    }
  };
}
 

@Override
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
    return new PreferenceGroupAdapter(preferenceScreen) {
        @SuppressLint("RestrictedApi")
        @Override
        public void onBindViewHolder(PreferenceViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);
            Preference preference = getItem(position);
            if (preference instanceof PreferenceCategory)
                setZeroPaddingToLayoutChildren(holder.itemView);
            else {
                View iconFrame = holder.itemView.findViewById(R.id.icon_frame);
                if (iconFrame != null) {
                    iconFrame.setVisibility(preference.getIcon() == null ? View.GONE : View.VISIBLE);
                }
            }
        }
    };
}
 

@Override
@SuppressLint("RestrictedApi")
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
    return new PreferenceGroupAdapter(preferenceScreen) {
        @Override
        public void onBindViewHolder(@NonNull PreferenceViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);
            Preference preference = getItem(position);
            if (preference instanceof PreferenceCategory)
                setZeroPaddingToLayoutChildren(holder.itemView);
            else {
                View iconFrame = holder.itemView.findViewById(R.id.icon_frame);
                if (iconFrame != null) {
                    iconFrame.setVisibility(preference.getIcon() == null ? View.GONE : View.VISIBLE);
                }
            }
        }
    };
}
 

@Override
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
    return new PreferenceGroupAdapter(preferenceScreen) {
        @SuppressLint("RestrictedApi")
        @Override
        public void onBindViewHolder(PreferenceViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);
            Preference preference = getItem(position);
            if (preference instanceof PreferenceCategory)
                setZeroPaddingToLayoutChildren(holder.itemView);
            else {
                View iconFrame = holder.itemView.findViewById(R.id.icon_frame);
                if (iconFrame != null) {
                    iconFrame.setVisibility(preference.getIcon() == null ? View.GONE : View.VISIBLE);
                }
            }
        }
    };
}
 

@Override protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
  return new PreferenceGroupAdapter(preferenceScreen) {
    @SuppressLint("RestrictedApi") @Override public void onBindViewHolder(PreferenceViewHolder holder, int position) {
      super.onBindViewHolder(holder, position);
      Preference preference = getItem(position);
      if (preference instanceof PreferenceCategory) {
        setZeroPaddingToLayoutChildren(holder.itemView);
      } else {
        View iconFrame = holder.itemView.findViewById(R.id.icon_frame);
        if (iconFrame != null) {
          iconFrame.setVisibility(preference.getIcon() == null ? View.GONE : View.VISIBLE);
        }
      }
    }
  };
}
 

@SuppressLint("RestrictedApi")
@Override
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
    return new PreferenceGroupAdapter(preferenceScreen) {
        @Override
        public void onPreferenceHierarchyChange(Preference preference) {
            if (preference != null)
                setAllPreferencesToAvoidHavingExtraSpace(preference);
            super.onPreferenceHierarchyChange(preference);
        }
    };
}
 

@Override
protected Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
  return new PreferenceGroupAdapter(preferenceScreen){
    @SuppressLint("RestrictedApi")
    public void onPreferenceHierarchyChange(Preference preference){
      setAllPreferencesToAvoidHavingExtraSpace(preference);
      super.onPreferenceHierarchyChange(preference);
    }
  };
}
 

public static int getPreferencePosition(PreferenceGroupAdapter adapter,
                                        Class<? extends Preference> clazz) {
    for (int i = 0; i < adapter.getItemCount(); i++) {
        if (clazz.isInstance(adapter.getItem(i))) {
            return i;
        }
    }
    throw new Resources.NotFoundException();
}
 

@Before
public void setUp() {
    controller = Robolectric.buildActivity(PreferencesActivity.class,
            new Intent()
                    .putExtra(PreferencesActivity.EXTRA_TITLE, R.string.display)
                    .putExtra(PreferencesActivity.EXTRA_PREFERENCES, R.xml.preferences_display));
    activity = controller.create().start().resume().visible().get();
    RecyclerView list = activity.findViewById(android.R.id.list_container);
    list.setLayoutManager(new LinearLayoutManager(activity));
    RecyclerView.Adapter adapter = list.getAdapter();
    int position = ShadowSupportPreferenceManager
            .getPreferencePosition((PreferenceGroupAdapter) adapter, ThemePreference.class);
    RecyclerView.ViewHolder holder = CustomShadows.customShadowOf(adapter).getViewHolder(position);
    preferenceView = holder.itemView;
}
 

@Before
public void setUp() {
    controller = Robolectric.buildActivity(PreferencesActivity.class,
            new Intent()
                    .putExtra(PreferencesActivity.EXTRA_TITLE, R.string.display)
                    .putExtra(PreferencesActivity.EXTRA_PREFERENCES, R.xml.preferences_display));
    activity = controller.create().postCreate(null).start().resume().visible().get();
    RecyclerView list = activity.findViewById(android.R.id.list_container);
    list.setLayoutManager(new LinearLayoutManager(activity));
    RecyclerView.Adapter adapter = list.getAdapter();
    int position = ShadowSupportPreferenceManager
            .getPreferencePosition((PreferenceGroupAdapter) adapter, FontPreference.class);
    RecyclerView.ViewHolder holder = CustomShadows.customShadowOf(adapter).getViewHolder(position);
    preferenceView = holder.itemView;
}
 

@Before
public void setUp() {
    controller = Robolectric.buildActivity(PreferencesActivity.class,
            new Intent()
                    .putExtra(PreferencesActivity.EXTRA_TITLE, R.string.display)
                    .putExtra(PreferencesActivity.EXTRA_PREFERENCES, R.xml.preferences_display));
    activity = controller.create().postCreate(null).start().resume().visible().get();
    RecyclerView list = activity.findViewById(android.R.id.list_container);
    list.setLayoutManager(new LinearLayoutManager(activity));
    RecyclerView.Adapter adapter = list.getAdapter();
    int position = ShadowSupportPreferenceManager
            .getPreferencePosition((PreferenceGroupAdapter) adapter, FontSizePreference.class);
    RecyclerView.ViewHolder holder = CustomShadows.customShadowOf(adapter).getViewHolder(position);
    preferenceView = holder.itemView;
}
 

@Override
protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) {
    return new PreferenceGroupAdapter(preferenceScreen) {
        @Override
        public void onBindViewHolder(PreferenceViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);

            // Override Equalizer preference attachment to add a long click listener
            // and to change the detail text at runtime
            String fragment = getItem(position).getFragment();
            if ("com.marverenic.music.ui.settings.EqualizerFragment".equals(fragment)) {

                ViewGroup itemView = (ViewGroup) holder.itemView;
                TextView title = itemView.findViewById(android.R.id.title);
                TextView detail = itemView.findViewById(android.R.id.summary);

                boolean hasSystemEq = Util.getSystemEqIntent(getContext()) != null;

                if (hasSystemEq && Util.hasEqualizer()) {
                    // If we have Jockey's Equalizer and another Equalizer
                    itemView.setOnLongClickListener(PreferenceFragment.this);
                    detail.setText(R.string.equalizer_more_options_detail);
                    detail.setVisibility(View.VISIBLE);

                } else if (hasSystemEq && !Util.hasEqualizer()) {
                    // If we don't have any equalizers
                    detail.setText(R.string.equalizer_unsupported);
                    detail.setVisibility(View.VISIBLE);
                    itemView.setEnabled(false);
                    title.setEnabled(false);
                    detail.setEnabled(false);
                }
            }
        }
    };
}
 

/**
 * Return a valid ListView position or -1 if none is found
 */
private int canUseListViewForHighLighting(String key) {
    if (getListView() == null) {
        return -1;
    }

    RecyclerView listView = getListView();
    RecyclerView.Adapter adapter = listView.getAdapter();

    if (adapter != null && adapter instanceof PreferenceGroupAdapter) {
        return findListPositionFromKey((PreferenceGroupAdapter) adapter, key);
    }

    return -1;
}
 

private int findListPositionFromKey(PreferenceGroupAdapter adapter, String key) {
    final int count = adapter.getItemCount();
    for (int n = 0; n < count; n++) {
        final Preference preference = adapter.getItem(n);
        final String preferenceKey = preference.getKey();
        if (preferenceKey != null && preferenceKey.equals(key)) {
            return n;
        }
    }
    return -1;
}