RecentsSettings.java

package com.nitrogen.settings.fragments;

import com.android.internal.logging.MetricsProto.MetricsEvent;
import android.app.Activity;
import android.content.Context;
import android.content.ContentResolver;
import android.content.res.Resources;
import android.os.Bundle;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.support.v7.preference.ListPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceScreen;
import android.support.v7.preference.Preference.OnPreferenceChangeListener;
import android.support.v14.preference.SwitchPreference;
import android.provider.Settings;
import com.android.settings.R;

import java.util.Arrays;
import java.util.HashSet;

import com.android.settings.SettingsPreferenceFragment;

public class RecentsSettings extends SettingsPreferenceFragment implements
        OnPreferenceChangeListener {

    private static final String IMMERSIVE_RECENTS = "immersive_recents";
    private static final String RECENTS_CLEAR_ALL_LOCATION = "recents_clear_all_location";
    private ListPreference mRecentsClearAllLocation;
    private SwitchPreference mRecentsClearAll;

    private ListPreference mImmersiveRecents;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        addPreferencesFromResource(R.xml.nitrogen_settings_recents);

        ContentResolver resolver = getActivity().getContentResolver();

        mImmersiveRecents = (ListPreference) findPreference(IMMERSIVE_RECENTS);
        mImmersiveRecents.setValue(String.valueOf(Settings.System.getInt(
                resolver, Settings.System.IMMERSIVE_RECENTS, 0)));
        mImmersiveRecents.setSummary(mImmersiveRecents.getEntry());
        mImmersiveRecents.setOnPreferenceChangeListener(this);

        // clear all recents
        mRecentsClearAllLocation = (ListPreference) findPreference(RECENTS_CLEAR_ALL_LOCATION);
        int location = Settings.System.getIntForUser(resolver,
                Settings.System.RECENTS_CLEAR_ALL_LOCATION, 3, UserHandle.USER_CURRENT);
        mRecentsClearAllLocation.setValue(String.valueOf(location));
        mRecentsClearAllLocation.setSummary(mRecentsClearAllLocation.getEntry());
        mRecentsClearAllLocation.setOnPreferenceChangeListener(this);
    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object objValue) {
        if (preference == mImmersiveRecents) {
            Settings.System.putInt(getContentResolver(), Settings.System.IMMERSIVE_RECENTS,
                    Integer.valueOf((String) objValue));
            mImmersiveRecents.setValue(String.valueOf(objValue));
            mImmersiveRecents.setSummary(mImmersiveRecents.getEntry());
            return true;
        } else if (preference == mRecentsClearAllLocation) {
            int location = Integer.valueOf((String) objValue);
            int index = mRecentsClearAllLocation.findIndexOfValue((String) objValue);
            Settings.System.putIntForUser(getActivity().getContentResolver(),
                    Settings.System.RECENTS_CLEAR_ALL_LOCATION, location, UserHandle.USER_CURRENT);
            mRecentsClearAllLocation.setSummary(mRecentsClearAllLocation.getEntries()[index]);
            return true;
        }

    return false;

    }

    @Override
    protected int getMetricsCategory() {
        return MetricsEvent.NITROGEN_SETTINGS;
    }
}