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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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 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;
@Override
public int getMetricsCategory() {
return MetricsEvent.FUELGAUGE_INACTIVE_APPS;
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mUsageStats = getActivity().getSystemService(UsageStatsManager.class);
addPreferencesFromResource(R.xml.inactive_apps);
}
@Override
public void onResume() {
super.onResume();
init();
}
private void init() {
PreferenceGroup screen = getPreferenceScreen();
screen.removeAll();
screen.setOrderingAsAdded(false);
final Context context = getActivity();
final PackageManager pm = context.getPackageManager();
final UsageStatsManager usm = context.getSystemService(UsageStatsManager.class);
Intent launcherIntent = new Intent(Intent.ACTION_MAIN);
launcherIntent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> apps = pm.queryIntentActivities(launcherIntent, 0);
for (ResolveInfo app : apps) {
String packageName = app.activityInfo.applicationInfo.packageName;
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.setOnPreferenceChangeListener(this);
screen.addPreference(p);
}
}
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 onPreferenceChange(Preference preference, Object newValue) {
mUsageStats.setAppStandbyBucket(preference.getKey(), Integer.parseInt((String) newValue));
updateSummary((ListPreference) preference);
return false;
}
}
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