misp-bump/app/src/main/java/lu/circl/mispbump/activities/PreferenceActivity.java

package lu.circl.mispbump.activities;


import android.os.Bundle;

import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import androidx.preference.Preference;
import androidx.preference.PreferenceFragmentCompat;

import lu.circl.mispbump.R;


public class PreferenceActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_preference);
        initializeViews();
    }

    private void initializeViews() {
        Toolbar myToolbar = findViewById(R.id.toolbar);
        setSupportActionBar(myToolbar);

        ActionBar ab = getSupportActionBar();
        assert ab != null;
        ab.setDisplayHomeAsUpEnabled(true);

        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.add(R.id.fragmentContainer, new PreferencesFragment(), PreferencesFragment.class.getSimpleName());
        fragmentTransaction.commit();
    }

    public static class PreferencesFragment extends PreferenceFragmentCompat {
        @Override
        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
            setPreferencesFromResource(R.xml.preference_screen_main, rootKey);

            findPreference("PREF_DELETE_ALL_SYNCS").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                @Override
                public boolean onPreferenceClick(Preference preference) {
                    return true;
                }
            });
        }
    }
}