| /* |
| * 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.fuelgauge; |
| |
| import android.app.AppOpsManager; |
| import android.app.admin.DevicePolicyManager; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.os.Build; |
| import android.os.UserManager; |
| import android.support.annotation.VisibleForTesting; |
| import android.support.v14.preference.SwitchPreference; |
| import android.support.v7.preference.Preference; |
| import android.util.Log; |
| |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settings.enterprise.DevicePolicyManagerWrapper; |
| import com.android.settings.enterprise.DevicePolicyManagerWrapperImpl; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| |
| /** |
| * Controller to control whether an app can run in the background |
| */ |
| public class BackgroundActivityPreferenceController extends AbstractPreferenceController |
| implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener { |
| |
| private static final String TAG = "BgActivityPrefContr"; |
| private static final String KEY_BACKGROUND_ACTIVITY = "background_activity"; |
| |
| private final PackageManager mPackageManager; |
| private final AppOpsManager mAppOpsManager; |
| private final UserManager mUserManager; |
| private final String[] mPackages; |
| private final int mUid; |
| @VisibleForTesting |
| DevicePolicyManagerWrapper mDpm; |
| |
| private String mTargetPackage; |
| |
| public BackgroundActivityPreferenceController(Context context, int uid) { |
| super(context); |
| mPackageManager = context.getPackageManager(); |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| mDpm = new DevicePolicyManagerWrapperImpl( |
| (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE)); |
| mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); |
| mUid = uid; |
| mPackages = mPackageManager.getPackagesForUid(mUid); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| final int mode = mAppOpsManager |
| .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, mUid, mTargetPackage); |
| // Set checked or not before we may set it disabled |
| if (mode != AppOpsManager.MODE_ERRORED) { |
| final boolean checked = mode != AppOpsManager.MODE_IGNORED; |
| ((SwitchPreference) preference).setChecked(checked); |
| } |
| if (mode == AppOpsManager.MODE_ERRORED |
| || Utils.isProfileOrDeviceOwner(mUserManager, mDpm, mTargetPackage)) { |
| preference.setEnabled(false); |
| } |
| |
| updateSummary(preference); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| if (mPackages == null) { |
| return false; |
| } |
| for (final String packageName : mPackages) { |
| if (isLegacyApp(packageName)) { |
| mTargetPackage = packageName; |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return KEY_BACKGROUND_ACTIVITY; |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| boolean switchOn = (Boolean) newValue; |
| mAppOpsManager.setMode(AppOpsManager.OP_RUN_IN_BACKGROUND, mUid, mTargetPackage, |
| switchOn ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED); |
| |
| updateSummary(preference); |
| return true; |
| } |
| |
| @VisibleForTesting |
| String getTargetPackage() { |
| return mTargetPackage; |
| } |
| |
| @VisibleForTesting |
| boolean isLegacyApp(final String packageName) { |
| try { |
| ApplicationInfo info = mPackageManager.getApplicationInfo(packageName, |
| PackageManager.GET_META_DATA); |
| |
| return info.targetSdkVersion < Build.VERSION_CODES.O; |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.e(TAG, "Cannot find package: " + packageName, e); |
| } |
| |
| return false; |
| } |
| |
| @VisibleForTesting |
| void updateSummary(Preference preference) { |
| final int mode = mAppOpsManager |
| .checkOpNoThrow(AppOpsManager.OP_RUN_IN_BACKGROUND, mUid, mTargetPackage); |
| |
| if (mode == AppOpsManager.MODE_ERRORED) { |
| preference.setSummary(R.string.background_activity_summary_disabled); |
| } else { |
| final boolean checked = mode != AppOpsManager.MODE_IGNORED; |
| preference.setSummary(checked ? R.string.background_activity_summary_on |
| : R.string.background_activity_summary_off); |
| } |
| } |
| } |