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/*
* Copyright (C) 2017 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.applications.appinfo;
import android.app.LoaderManager;
import android.content.Context;
import android.content.Loader;
import android.content.pm.ApplicationInfo;
import android.os.Bundle;
import android.os.UserHandle;
import android.support.annotation.VisibleForTesting;
import android.support.v7.preference.Preference;
import android.text.format.Formatter;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.applications.AppStorageSettings;
import com.android.settings.applications.FetchPackageStorageAsyncLoader;
import com.android.settingslib.applications.StorageStatsSource;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
public class AppStoragePreferenceController extends AppInfoPreferenceControllerBase
implements LoaderManager.LoaderCallbacks<StorageStatsSource.AppStorageStats>,
LifecycleObserver, OnResume, OnPause {
private StorageStatsSource.AppStorageStats mLastResult;
public AppStoragePreferenceController(Context context, String key) {
super(context, key);
}
@Override
public void updateState(Preference preference) {
final boolean isExternal =
(mParent.getAppEntry().info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
preference.setSummary(getStorageSummary(mLastResult, isExternal));
}
@Override
public void onResume() {
mParent.getLoaderManager().restartLoader(mParent.LOADER_STORAGE, Bundle.EMPTY, this);
}
@Override
public void onPause() {
mParent.getLoaderManager().destroyLoader(mParent.LOADER_STORAGE);
}
@Override
protected Class<? extends SettingsPreferenceFragment> getDetailFragmentClass() {
return AppStorageSettings.class;
}
@VisibleForTesting
CharSequence getStorageSummary(
StorageStatsSource.AppStorageStats stats, boolean isExternal) {
if (stats == null) {
return mContext.getText(R.string.computing_size);
}
final CharSequence storageType = mContext.getString(isExternal
? R.string.storage_type_external
: R.string.storage_type_internal);
return mContext.getString(R.string.storage_summary_format,
Formatter.formatFileSize(mContext, stats.getTotalBytes()),
storageType.toString().toLowerCase());
}
@Override
public Loader<StorageStatsSource.AppStorageStats> onCreateLoader(int id, Bundle args) {
return new FetchPackageStorageAsyncLoader(mContext, new StorageStatsSource(mContext),
mParent.getAppEntry().info, UserHandle.of(UserHandle.myUserId()));
}
@Override
public void onLoadFinished(Loader<StorageStatsSource.AppStorageStats> loader,
StorageStatsSource.AppStorageStats result) {
mLastResult = result;
updateState(mPreference);
}
@Override
public void onLoaderReset(Loader<StorageStatsSource.AppStorageStats> loader) {
}
}
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