Signal-Android/app/src/main/java/org/thoughtcrime/securesms/components/settings/BaseSettingsFragment.java

94 lines
3.0 KiB
Java

package org.thoughtcrime.securesms.components.settings;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.util.MappingModelList;
import java.io.Serializable;
import java.util.Objects;
/**
* A simple settings screen that takes its configuration via {@link Configuration}.
*/
public class BaseSettingsFragment extends Fragment {
private static final String CONFIGURATION_ARGUMENT = "current_selection";
private RecyclerView recycler;
public static @NonNull BaseSettingsFragment create(@NonNull Configuration configuration) {
BaseSettingsFragment fragment = new BaseSettingsFragment();
Bundle arguments = new Bundle();
arguments.putSerializable(CONFIGURATION_ARGUMENT, configuration);
fragment.setArguments(arguments);
return fragment;
}
@Override
public @Nullable View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.base_settings_fragment, container, false);
recycler = view.findViewById(R.id.base_settings_list);
recycler.setItemAnimator(null);
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
BaseSettingsAdapter adapter = new BaseSettingsAdapter();
recycler.setLayoutManager(new LinearLayoutManager(requireContext()));
recycler.setAdapter(adapter);
Configuration configuration = (Configuration) Objects.requireNonNull(requireArguments().getSerializable(CONFIGURATION_ARGUMENT));
configuration.configure(requireActivity(), adapter);
configuration.setArguments(getArguments());
configuration.configureAdapter(adapter);
adapter.submitList(configuration.getSettings());
}
/**
* A configuration for a settings screen. Utilizes serializable to hide
* reflection of instantiating from a fragment argument.
*/
public static abstract class Configuration implements Serializable {
protected transient FragmentActivity activity;
protected transient BaseSettingsAdapter adapter;
public void configure(@NonNull FragmentActivity activity, @NonNull BaseSettingsAdapter adapter) {
this.activity = activity;
this.adapter = adapter;
}
/**
* Retrieve any runtime information from the fragment's arguments.
*/
public void setArguments(@Nullable Bundle arguments) {}
protected void updateSettingsList() {
adapter.submitList(getSettings());
}
public abstract void configureAdapter(@NonNull BaseSettingsAdapter adapter);
public abstract @NonNull MappingModelList getSettings();
}
}