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package se.leap.bitmaskclient.base.fragments;
import static se.leap.bitmaskclient.base.utils.ViewHelper.setActionBarSubtitle;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatDelegate;
import androidx.core.os.LocaleListCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Locale;
import se.leap.bitmaskclient.R;
import se.leap.bitmaskclient.base.views.SimpleCheckBox;
import se.leap.bitmaskclient.databinding.FLanguageSelectionBinding;
import se.leap.bitmaskclient.databinding.VSelectTextListItemBinding;
public class LanguageSelectionFragment extends BottomSheetDialogFragment {
static final String TAG = LanguageSelectionFragment.class.getSimpleName();
static final String SYSTEM_LOCALE = "systemLocale";
private FLanguageSelectionBinding binding;
public static LanguageSelectionFragment newInstance(Locale defaultLocale) {
LanguageSelectionFragment fragment = new LanguageSelectionFragment();
Bundle args = new Bundle();
args.putString(SYSTEM_LOCALE, defaultLocale.toLanguageTag());
fragment.setArguments(args);
return fragment;
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
binding = FLanguageSelectionBinding.inflate(inflater, container, false);
return binding.getRoot();
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setActionBarSubtitle(this, R.string.select_language);
initRecyclerView(Arrays.asList(getResources().getStringArray(R.array.supported_languages)));
}
private static void customizeSelectionItem(VSelectTextListItemBinding binding) {
binding.title.setVisibility(View.GONE);
binding.bridgeImage.setVisibility(View.GONE);
binding.quality.setVisibility(View.GONE);
}
private void initRecyclerView(List<String> supportedLanguages) {
Locale defaultLocale = AppCompatDelegate.getApplicationLocales().get(0);
if (defaultLocale == null) {
defaultLocale = LocaleListCompat.getDefault().get(0);
}
// NOTE: Sort the supported languages by their display names.
// This would make updating supported languages easier as we don't have to tip toe around the order
Collections.sort(supportedLanguages, (lang1, lang2) -> {
String displayName1 = Locale.forLanguageTag(lang1).getDisplayName(Locale.ENGLISH);
String displayName2 = Locale.forLanguageTag(lang2).getDisplayName(Locale.ENGLISH);
return displayName1.compareTo(displayName2);
});
binding.languages.setAdapter(
new LanguageSelectionAdapter(supportedLanguages, this::updateLocale, defaultLocale)
);
binding.languages.setLayoutManager(new LinearLayoutManager(getContext()));
}
public static Locale getCurrentLocale() {
Locale defaultLocale = AppCompatDelegate.getApplicationLocales().get(0);
if (defaultLocale == null) {
defaultLocale = LocaleListCompat.getDefault().get(0);
}
return defaultLocale;
}
/**
* Update the locale of the application
*
* @param languageTag the language tag to set the locale to
*/
private void updateLocale(String languageTag) {
if (languageTag.isEmpty()) {
AppCompatDelegate.setApplicationLocales(LocaleListCompat.getEmptyLocaleList());
} else {
AppCompatDelegate.setApplicationLocales(LocaleListCompat.forLanguageTags(languageTag));
}
}
/**
* Adapter for the language selection recycler view.
*/
static class LanguageSelectionAdapter extends RecyclerView.Adapter<LanguageSelectionAdapter.LanguageViewHolder> {
private final List<String> languages;
private final LanguageClickListener clickListener;
private final Locale selectedLocale;
public LanguageSelectionAdapter(List<String> languages, LanguageClickListener clickListener, Locale defaultLocale) {
this.languages = languages;
this.clickListener = clickListener;
this.selectedLocale = defaultLocale;
}
@NonNull
@Override
public LanguageViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
VSelectTextListItemBinding binding = VSelectTextListItemBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false);
return new LanguageViewHolder(binding);
}
@Override
public void onBindViewHolder(@NonNull LanguageViewHolder holder, int position) {
String languageTag = languages.get(position);
holder.languageName.setText(Locale.forLanguageTag(languageTag).getDisplayName(Locale.ENGLISH));
if (languages.contains(selectedLocale.toLanguageTag())) {
holder.selected.setChecked(selectedLocale.toLanguageTag().equals(languageTag));
} else {
holder.selected.setChecked(selectedLocale.getLanguage().equals(languageTag));
}
holder.itemView.setOnClickListener(v -> clickListener.onLanguageClick(languageTag));
}
@Override
public int getItemCount() {
return languages.size();
}
/**
* View holder for the language item
*/
static class LanguageViewHolder extends RecyclerView.ViewHolder {
TextView languageName;
SimpleCheckBox selected;
public LanguageViewHolder(@NonNull VSelectTextListItemBinding binding) {
super(binding.getRoot());
languageName = binding.location;
selected = binding.selected;
customizeSelectionItem(binding);
}
}
}
/**
* Interface for the language click listener
*/
interface LanguageClickListener {
void onLanguageClick(String languageTag);
}
}
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