Add settings UI for MANAGE_EXTERNAL_STORAGE
Adds a Special App Access setting for the app-op
OP_MANAGE_EXTERNAL_STORAGE. All apps requesting the corresponding
permission will be displayed in the settings page. Toggling the
preference switch for an app will grant/revoke the app-op.
All of the external references to the permission, app-op and their
corresponding activities and logic use the name "Manage External
Storage". All of the external displays and strings use the name "All
files access"
Test: * Install app with uses-permission MANAGE_EXTERNAL_STORAGE
* Observe it appearing the All files access page
* Toggle the switch and observe the change in
'adb shell dumpsys appops'
Bug: 146425146
Change-Id: If5c9c5daa3616a3310c090283acfda933bf9df26
This commit is contained in:
shafik
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/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.applications.appinfo;
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import android.app.AppOpsManager;
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import android.app.settings.SettingsEnums;
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import android.content.Context;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.VisibleForTesting;
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import androidx.appcompat.app.AlertDialog;
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import androidx.preference.Preference;
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import androidx.preference.Preference.OnPreferenceChangeListener;
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import androidx.preference.Preference.OnPreferenceClickListener;
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import androidx.preference.SwitchPreference;
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import com.android.settings.R;
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import com.android.settings.applications.AppInfoWithHeader;
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import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
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import com.android.settings.applications.AppStateManageExternalStorageBridge;
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import com.android.settings.overlay.FeatureFactory;
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import com.android.settingslib.applications.ApplicationsState.AppEntry;
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import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
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/**
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* Class for displaying app info related to {@link AppOpsManager#OP_MANAGE_EXTERNAL_STORAGE}.
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*/
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public class ManageExternalStorageDetails extends AppInfoWithHeader implements
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OnPreferenceChangeListener, OnPreferenceClickListener {
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private static final String KEY_APP_OPS_SETTINGS_SWITCH = "app_ops_settings_switch";
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private AppStateManageExternalStorageBridge mBridge;
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private AppOpsManager mAppOpsManager;
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private SwitchPreference mSwitchPref;
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private PermissionState mPermissionState;
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private MetricsFeatureProvider mMetricsFeatureProvider;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Context context = getActivity();
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mBridge = new AppStateManageExternalStorageBridge(context, mState, null);
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mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
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// initialize preferences
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addPreferencesFromResource(R.xml.manage_external_storage_permission_details);
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mSwitchPref = findPreference(KEY_APP_OPS_SETTINGS_SWITCH);
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// install event listeners
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mSwitchPref.setOnPreferenceChangeListener(this);
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mMetricsFeatureProvider =
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FeatureFactory.getFactory(getContext()).getMetricsFeatureProvider();
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}
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@Override
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public View onCreateView(LayoutInflater inflater,
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ViewGroup container,
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Bundle savedInstanceState) {
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// if we don't have a package info, show a page saying this is unsupported
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if (mPackageInfo == null) {
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return inflater.inflate(R.layout.manage_applications_apps_unsupported, null);
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}
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return super.onCreateView(inflater, container, savedInstanceState);
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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mBridge.release();
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}
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@Override
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public boolean onPreferenceClick(Preference preference) {
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return false;
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object newValue) {
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if (preference == mSwitchPref) {
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if (mPermissionState != null && !newValue.equals(mPermissionState.isPermissible())) {
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setManageExternalStorageState((Boolean) newValue);
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refreshUi();
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}
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return true;
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}
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return false;
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}
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/**
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* Toggles {@link AppOpsManager#OP_MANAGE_EXTERNAL_STORAGE} for the app.
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*/
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private void setManageExternalStorageState(boolean newState) {
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logSpecialPermissionChange(newState, mPackageName);
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mAppOpsManager.setMode(AppOpsManager.OP_MANAGE_EXTERNAL_STORAGE,
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mPackageInfo.applicationInfo.uid, mPackageName, newState
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? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED);
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}
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private void logSpecialPermissionChange(boolean newState, String packageName) {
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int logCategory = newState ? SettingsEnums.APP_SPECIAL_PERMISSION_MANAGE_EXT_STRG_ALLOW
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: SettingsEnums.APP_SPECIAL_PERMISSION_MANAGE_EXT_STRG_DENY;
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mMetricsFeatureProvider.action(
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mMetricsFeatureProvider.getAttribution(getActivity()),
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logCategory,
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getMetricsCategory(),
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packageName,
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0 /* value */);
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}
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@Override
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protected boolean refreshUi() {
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if (mPackageInfo == null) {
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return true;
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}
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mPermissionState = mBridge.getManageExternalStoragePermState(mPackageName,
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mPackageInfo.applicationInfo.uid);
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mSwitchPref.setChecked(mPermissionState.isPermissible());
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// you cannot ask a user to grant you a permission you did not have!
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mSwitchPref.setEnabled(mPermissionState.permissionDeclared);
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return true;
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}
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@Override
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protected AlertDialog createDialog(int id, int errorCode) {
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return null;
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}
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@Override
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public int getMetricsCategory() {
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return SettingsEnums.MANAGE_EXTERNAL_STORAGE;
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}
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/**
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* Returns the string that states whether whether the app has access to
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* {@link AppOpsManager#OP_MANAGE_EXTERNAL_STORAGE}.
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* <p>This string is used in the "All files access" page that displays all apps requesting
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* {@link android.Manifest.permission#MANAGE_EXTERNAL_STORAGE}
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*/
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public static CharSequence getSummary(Context context, AppEntry entry) {
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final PermissionState state;
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if (entry.extraInfo instanceof PermissionState) {
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state = (PermissionState) entry.extraInfo;
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} else {
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state = new AppStateManageExternalStorageBridge(context, null, null)
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.getManageExternalStoragePermState(entry.info.packageName, entry.info.uid);
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}
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return getSummary(context, state);
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}
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private static CharSequence getSummary(Context context, PermissionState state) {
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return context.getString(state.isPermissible()
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? R.string.app_permission_summary_allowed
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: R.string.app_permission_summary_not_allowed);
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}
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}
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