Refactor Build number preference control into a controller.
- Use PreferenceController structure to make things more modular and testable - Add tests - Confirm password before enabling dev settings. Bug: 24107771 Test: RunSettingsRoboTests Change-Id: I791d9452fd461f570e70e7428f00a7258663de4b
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Fan Zhang
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/*
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* Copyright (C) 2016 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.deviceinfo;
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import android.app.Activity;
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import android.app.Fragment;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Build;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.support.v7.preference.Preference;
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import android.support.v7.preference.PreferenceScreen;
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import android.text.TextUtils;
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import android.widget.Toast;
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import com.android.settings.ChooseLockSettingsHelper;
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import com.android.settings.DevelopmentSettings;
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import com.android.settings.R;
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import com.android.settings.Utils;
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import com.android.settings.core.PreferenceController;
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import com.android.settings.core.lifecycle.LifecycleObserver;
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import com.android.settings.core.lifecycle.events.OnResume;
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import com.android.settings.search.Index;
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import com.android.settingslib.RestrictedLockUtils;
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public class BuildNumberPreferenceController extends PreferenceController
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implements LifecycleObserver, OnResume {
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static final int TAPS_TO_BE_A_DEVELOPER = 7;
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static final int REQUEST_CONFIRM_PASSWORD_FOR_DEV_PREF = 100;
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private static final String KEY_BUILD_NUMBER = "build_number";
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private final Activity mActivity;
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private final Fragment mFragment;
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private final UserManager mUm;
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private Toast mDevHitToast;
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private RestrictedLockUtils.EnforcedAdmin mDebuggingFeaturesDisallowedAdmin;
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private boolean mDebuggingFeaturesDisallowedBySystem;
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private int mDevHitCountdown;
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private boolean mProcessingLastDevHit;
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public BuildNumberPreferenceController(Context context, Activity activity, Fragment fragment) {
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super(context);
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mActivity = activity;
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mFragment = fragment;
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mUm = UserManager.get(activity);
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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final Preference preference = screen.findPreference(KEY_BUILD_NUMBER);
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if (preference != null) {
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try {
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preference.setSummary(Build.DISPLAY);
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preference.setEnabled(true);
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} catch (Exception e) {
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preference.setSummary(R.string.device_info_default);
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}
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}
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}
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@Override
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public String getPreferenceKey() {
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return KEY_BUILD_NUMBER;
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}
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@Override
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protected boolean isAvailable() {
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return true;
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}
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@Override
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public void onResume() {
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mDebuggingFeaturesDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(
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mContext, UserManager.DISALLOW_DEBUGGING_FEATURES, UserHandle.myUserId());
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mDebuggingFeaturesDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction(
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mContext, UserManager.DISALLOW_DEBUGGING_FEATURES, UserHandle.myUserId());
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mDevHitCountdown = mContext.getSharedPreferences(DevelopmentSettings.PREF_FILE,
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Context.MODE_PRIVATE).getBoolean(DevelopmentSettings.PREF_SHOW,
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android.os.Build.TYPE.equals("eng")) ? -1 : TAPS_TO_BE_A_DEVELOPER;
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mDevHitToast = null;
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}
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@Override
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public boolean handlePreferenceTreeClick(Preference preference) {
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if (!TextUtils.equals(preference.getKey(), KEY_BUILD_NUMBER)) {
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return false;
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}
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// Don't enable developer options for secondary users.
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if (!mUm.isAdminUser()) {
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return false;
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}
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// Don't enable developer options until device has been provisioned
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if (!Utils.isDeviceProvisioned(mContext)) {
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return false;
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}
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if (mUm.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES)) {
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if (mDebuggingFeaturesDisallowedAdmin != null &&
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!mDebuggingFeaturesDisallowedBySystem) {
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RestrictedLockUtils.sendShowAdminSupportDetailsIntent(mContext,
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mDebuggingFeaturesDisallowedAdmin);
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}
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return false;
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}
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if (mDevHitCountdown > 0) {
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mDevHitCountdown--;
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if (mDevHitCountdown == 0 && !mProcessingLastDevHit) {
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// Add 1 count back, then start password confirmation flow.
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mDevHitCountdown++;
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final ChooseLockSettingsHelper helper =
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new ChooseLockSettingsHelper(mActivity, mFragment);
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mProcessingLastDevHit = helper.launchConfirmationActivity(
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REQUEST_CONFIRM_PASSWORD_FOR_DEV_PREF,
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mContext.getString(R.string.unlock_set_unlock_launch_picker_title));
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if (!mProcessingLastDevHit) {
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enableDevelopmentSettings();
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}
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} else if (mDevHitCountdown > 0
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&& mDevHitCountdown < (TAPS_TO_BE_A_DEVELOPER - 2)) {
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if (mDevHitToast != null) {
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mDevHitToast.cancel();
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}
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mDevHitToast = Toast.makeText(mContext,
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mContext.getResources().getQuantityString(
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R.plurals.show_dev_countdown, mDevHitCountdown,
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mDevHitCountdown),
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Toast.LENGTH_SHORT);
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mDevHitToast.show();
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}
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} else if (mDevHitCountdown < 0) {
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if (mDevHitToast != null) {
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mDevHitToast.cancel();
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}
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mDevHitToast = Toast.makeText(mContext, R.string.show_dev_already,
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Toast.LENGTH_LONG);
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mDevHitToast.show();
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}
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return true;
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}
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/**
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* Handles password confirmation result.
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*
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* @return if activity result is handled.
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*/
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public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
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if (requestCode != REQUEST_CONFIRM_PASSWORD_FOR_DEV_PREF) {
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return false;
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}
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if (resultCode == Activity.RESULT_OK) {
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enableDevelopmentSettings();
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}
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mProcessingLastDevHit = false;
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return true;
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}
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/**
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* Enables development settings. Only call this after confirming password.
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*/
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private void enableDevelopmentSettings() {
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mDevHitCountdown = 0;
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mProcessingLastDevHit = false;
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mContext.getSharedPreferences(DevelopmentSettings.PREF_FILE,
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Context.MODE_PRIVATE).edit()
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.putBoolean(DevelopmentSettings.PREF_SHOW, true)
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.apply();
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if (mDevHitToast != null) {
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mDevHitToast.cancel();
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}
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mDevHitToast = Toast.makeText(mContext, R.string.show_dev_on,
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Toast.LENGTH_LONG);
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mDevHitToast.show();
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// This is good time to index the Developer Options
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Index.getInstance(
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mContext.getApplicationContext()).updateFromClassNameResource(
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DevelopmentSettings.class.getName(), true, true);
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}
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}
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