Merge "Update Inactive Apps screen to show buckets"

package com.android.settings.fuelgauge;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_ACTIVE;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_EXEMPTED;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_FREQUENT;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_NEVER;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_RARE;

import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_WORKING_SET;

import android.app.usage.UsageStatsManager;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.content.res.Resources;

import android.os.Bundle;

import android.support.v7.preference.ListPreference;

import android.support.v7.preference.Preference;

import android.support.v7.preference.Preference.OnPreferenceClickListener;

import android.support.v7.preference.PreferenceGroup;

import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

import com.android.settings.R;

import com.android.settings.SettingsPreferenceFragment;

import com.android.settings.widget.RadioButtonPreference;

import java.util.List;

public class InactiveApps extends SettingsPreferenceFragment implements OnPreferenceClickListener {

public class InactiveApps extends SettingsPreferenceFragment

        implements Preference.OnPreferenceChangeListener {

    private static final CharSequence[] SETTABLE_BUCKETS_NAMES =

            {"ACTIVE", "WORKING_SET", "FREQUENT", "RARE"};

    private static final CharSequence[] SETTABLE_BUCKETS_VALUES = {

            Integer.toString(STANDBY_BUCKET_ACTIVE),

            Integer.toString(STANDBY_BUCKET_WORKING_SET),

            Integer.toString(STANDBY_BUCKET_FREQUENT),

            Integer.toString(STANDBY_BUCKET_RARE)

    };

    private UsageStatsManager mUsageStats;

        List<ResolveInfo> apps = pm.queryIntentActivities(launcherIntent, 0);

        for (ResolveInfo app : apps) {

            String packageName = app.activityInfo.applicationInfo.packageName;

            Preference p = new Preference(getPrefContext());

            ListPreference p = new ListPreference(getPrefContext());

            p.setTitle(app.loadLabel(pm));

            p.setIcon(app.loadIcon(pm));

            p.setKey(packageName);

            p.setEntries(SETTABLE_BUCKETS_NAMES);

            p.setEntryValues(SETTABLE_BUCKETS_VALUES);

            updateSummary(p);

            p.setOnPreferenceClickListener(this);

            p.setOnPreferenceChangeListener(this);

            screen.addPreference(p);

        }

    }

    private void updateSummary(Preference p) {

        boolean inactive = mUsageStats.isAppInactive(p.getKey());

        p.setSummary(inactive

                ? R.string.inactive_app_inactive_summary

                : R.string.inactive_app_active_summary);

    static String bucketToName(int bucket) {

        switch (bucket) {

            case STANDBY_BUCKET_EXEMPTED: return "EXEMPTED";

            case STANDBY_BUCKET_ACTIVE: return "ACTIVE";

            case STANDBY_BUCKET_WORKING_SET: return "WORKING_SET";

            case STANDBY_BUCKET_FREQUENT: return "FREQUENT";

            case STANDBY_BUCKET_RARE: return "RARE";

            case STANDBY_BUCKET_NEVER: return "NEVER";

        }

        return "";

    }

    private void updateSummary(ListPreference p) {

        final Resources res = getActivity().getResources();

        final int appBucket = mUsageStats.getAppStandbyBucket(p.getKey());

        final String bucketName = bucketToName(appBucket);

        p.setSummary(res.getString(R.string.standby_bucket_summary, bucketName));

        // Buckets outside of the range of the dynamic ones are only used for special

        // purposes and can either not be changed out of, or might have undesirable

        // side-effects in combination with other assumptions.

        final boolean changeable = appBucket >= STANDBY_BUCKET_ACTIVE

                && appBucket <= STANDBY_BUCKET_RARE;

        if (changeable) {

            p.setValue(Integer.toString(appBucket));

        }

        p.setEnabled(changeable);

    }

    @Override

    public boolean onPreferenceClick(Preference preference) {

        String packageName = preference.getKey();

        mUsageStats.setAppInactive(packageName, !mUsageStats.isAppInactive(packageName));

        updateSummary(preference);

    public boolean onPreferenceChange(Preference preference, Object newValue) {

        mUsageStats.setAppStandbyBucket(preference.getKey(), Integer.parseInt((String) newValue));

        updateSummary((ListPreference) preference);

        return false;

    }

}