e38ea38002
Creates an easy way to ask for the restriction pin before allowing access to a settings page. Does this to the WiFiSettings. Change-Id: I49734f66e09b6449596412ecf6fc1113bf57ce7f
128 lines
4.2 KiB
Java
128 lines
4.2 KiB
Java
/*
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* Copyright (C) 2013 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;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.UserManager;
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/**
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* Base class for settings activities that should be pin protected when in restricted mode.
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* The constructor for this class will take the restriction key that this screen should be
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* locked by. If {@link UserManager.hasRestrictionsPin()} and {@link UserManager.hasUserRestriction(String)} returns true for the
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* restriction key, then the user will hav
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*
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*/
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public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
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// Should be unique across all settings screens that use this.
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private static final int REQUEST_PIN_CHALLENGE = 12309;
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private static final String KEY_CHALLENGE_SUCCEEDED = "chsc";
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private static final String KEY_CHALLENGE_REQUESTED = "chrq";
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// If the restriction PIN is entered correctly.
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private boolean mChallengeSucceeded;
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private boolean mChallengeRequested;
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private UserManager mUserManager;
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private final String mRestrictionKey;
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public RestrictedSettingsFragment(String restrictedFlag) {
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mRestrictionKey = restrictedFlag;
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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mUserManager = (UserManager) getSystemService(Context.USER_SERVICE);
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}
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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if (icicle != null) {
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mChallengeSucceeded = icicle.getBoolean(KEY_CHALLENGE_SUCCEEDED, false);
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mChallengeRequested = icicle.getBoolean(KEY_CHALLENGE_REQUESTED, false);
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}
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putBoolean(KEY_CHALLENGE_REQUESTED, mChallengeRequested);
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if (getActivity().isChangingConfigurations()) {
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outState.putBoolean(KEY_CHALLENGE_SUCCEEDED, mChallengeSucceeded);
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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if (mUserManager.hasUserRestriction(mRestrictionKey)
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&& mUserManager.hasRestrictionsPin()) {
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ensurePin();
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}
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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if (requestCode == REQUEST_PIN_CHALLENGE) {
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mChallengeRequested = false;
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if (resultCode == Activity.RESULT_OK) {
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mChallengeSucceeded = true;
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} else if (!isDetached()) {
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finishFragment();
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}
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return;
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}
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super.onActivityResult(requestCode, resultCode, data);
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}
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private void ensurePin() {
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if (!mChallengeSucceeded) {
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final UserManager um = UserManager.get(getActivity());
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if (!mChallengeRequested) {
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if (um.hasRestrictionsPin()) {
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Intent requestPin =
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new Intent(Intent.ACTION_RESTRICTIONS_PIN_CHALLENGE);
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startActivityForResult(requestPin, REQUEST_PIN_CHALLENGE);
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mChallengeRequested = true;
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}
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}
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}
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mChallengeSucceeded = false;
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}
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/**
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* Returns true if this activity is restricted, but no restriction pin has been set.
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* Used to determine if the settings UI should disable UI.
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*/
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protected boolean isRestrictedAndNotPinProtected() {
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return mUserManager.hasUserRestriction(mRestrictionKey)
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&& !mUserManager.hasRestrictionsPin();
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}
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}
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