Initial Contribution
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The Android Open Source Project
281
src/com/android/settings/SecuritySettings.java
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281
src/com/android/settings/SecuritySettings.java
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/*
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* Copyright (C) 2007 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.content.SharedPreferences;
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import android.location.LocationManager;
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import android.os.Bundle;
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import android.preference.CheckBoxPreference;
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import android.preference.Preference;
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import android.preference.PreferenceActivity;
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import android.preference.PreferenceCategory;
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import android.preference.PreferenceScreen;
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import android.provider.Settings;
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import android.util.Config;
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import android.util.Log;
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import com.android.internal.widget.LockPatternUtils;
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/**
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* Gesture lock pattern settings.
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*/
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public class SecuritySettings extends PreferenceActivity
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implements SharedPreferences.OnSharedPreferenceChangeListener {
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// Lock Settings
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private static final String KEY_LOCK_ENABLED = "lockenabled";
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private static final String KEY_VISIBLE_PATTERN = "visiblepattern";
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private static final int CONFIRM_PATTERN_REQUEST_CODE = 55;
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private LockPatternUtils mLockPatternUtils;
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private CheckBoxPreference mLockEnabled;
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private CheckBoxPreference mVisiblePattern;
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private Preference mChoosePattern;
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private CheckBoxPreference mShowPassword;
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// Location Settings
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private static final String LOCATION_NETWORK = "location_network";
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private static final String LOCATION_GPS = "location_gps";
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private CheckBoxPreference mNetwork;
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private CheckBoxPreference mGps;
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private LocationManager mLocationManager;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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addPreferencesFromResource(R.xml.security_settings);
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mLockPatternUtils = new LockPatternUtils(getContentResolver());
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createPreferenceHierarchy();
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// Get the available location providers
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mLocationManager = (LocationManager)
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getSystemService(Context.LOCATION_SERVICE);
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mNetwork = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_NETWORK);
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mGps = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_GPS);
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getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
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updateToggles();
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}
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private PreferenceScreen createPreferenceHierarchy() {
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// Root
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PreferenceScreen root = this.getPreferenceScreen();
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// Inline preferences
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PreferenceCategory inlinePrefCat = new PreferenceCategory(this);
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inlinePrefCat.setTitle(R.string.lock_settings_title);
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root.addPreference(inlinePrefCat);
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// autolock toggle
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mLockEnabled = new LockEnabledPref(this);
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mLockEnabled.setTitle(R.string.lockpattern_settings_enable_title);
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mLockEnabled.setSummary(R.string.lockpattern_settings_enable_summary);
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mLockEnabled.setKey(KEY_LOCK_ENABLED);
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inlinePrefCat.addPreference(mLockEnabled);
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// visible pattern
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mVisiblePattern = new CheckBoxPreference(this);
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mVisiblePattern.setKey(KEY_VISIBLE_PATTERN);
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mVisiblePattern.setTitle(R.string.lockpattern_settings_enable_visible_pattern_title);
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inlinePrefCat.addPreference(mVisiblePattern);
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// change pattern lock
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Intent intent = new Intent();
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intent.setClassName("com.android.settings",
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"com.android.settings.ChooseLockPatternTutorial");
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mChoosePattern = getPreferenceManager().createPreferenceScreen(this);
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mChoosePattern.setIntent(intent);
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inlinePrefCat.addPreference(mChoosePattern);
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PreferenceScreen simLockPreferences = getPreferenceManager()
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.createPreferenceScreen(this);
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simLockPreferences.setTitle(R.string.sim_lock_settings_category);
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// Intent to launch SIM lock settings
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intent = new Intent();
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intent.setClassName("com.android.settings", "com.android.settings.SimLockSettings");
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simLockPreferences.setIntent(intent);
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PreferenceCategory simLockCat = new PreferenceCategory(this);
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simLockCat.setTitle(R.string.sim_lock_settings_title);
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root.addPreference(simLockCat);
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simLockCat.addPreference(simLockPreferences);
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// Passwords
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PreferenceCategory passwordsCat = new PreferenceCategory(this);
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passwordsCat.setTitle(R.string.security_passwords_title);
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root.addPreference(passwordsCat);
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CheckBoxPreference showPassword = mShowPassword = new CheckBoxPreference(this);
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showPassword.setKey("show_password");
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showPassword.setTitle(R.string.show_password);
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showPassword.setSummary(R.string.show_password_summary);
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showPassword.setPersistent(false);
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passwordsCat.addPreference(showPassword);
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return root;
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}
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@Override
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protected void onResume() {
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super.onResume();
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boolean patternExists = mLockPatternUtils.savedPatternExists();
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mLockEnabled.setEnabled(patternExists);
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mVisiblePattern.setEnabled(patternExists);
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mLockEnabled.setChecked(mLockPatternUtils.isLockPatternEnabled());
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mVisiblePattern.setChecked(mLockPatternUtils.isVisiblePatternEnabled());
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int chooseStringRes = mLockPatternUtils.savedPatternExists() ?
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R.string.lockpattern_settings_change_lock_pattern :
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R.string.lockpattern_settings_choose_lock_pattern;
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mChoosePattern.setTitle(chooseStringRes);
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mShowPassword
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.setChecked(Settings.System.getInt(getContentResolver(),
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Settings.System.TEXT_SHOW_PASSWORD, 1) != 0);
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}
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
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Preference preference) {
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final String key = preference.getKey();
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if (KEY_LOCK_ENABLED.equals(key)) {
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mLockPatternUtils.setLockPatternEnabled(isToggled(preference));
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} else if (KEY_VISIBLE_PATTERN.equals(key)) {
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mLockPatternUtils.setVisiblePatternEnabled(isToggled(preference));
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} else if (preference == mShowPassword) {
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Settings.System.putInt(getContentResolver(), Settings.System.TEXT_SHOW_PASSWORD,
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mShowPassword.isChecked() ? 1 : 0);
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}
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return false;
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}
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/*
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* Creates toggles for each available location provider
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*/
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private void updateToggles() {
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String providers = getAllowedProviders();
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mNetwork.setChecked(providers.contains(LocationManager.NETWORK_PROVIDER));
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mGps.setChecked(providers.contains(LocationManager.GPS_PROVIDER));
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}
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private void updateProviders() {
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String preferredProviders = "";
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if (mNetwork.isChecked()) {
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preferredProviders += LocationManager.NETWORK_PROVIDER;
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}
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if (mGps.isChecked()) {
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preferredProviders += "," + LocationManager.GPS_PROVIDER;
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}
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setProviders(preferredProviders);
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}
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private void setProviders(String providers) {
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// Update the system setting LOCATION_PROVIDERS_ALLOWED
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Settings.System.putString(getContentResolver(),
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Settings.System.LOCATION_PROVIDERS_ALLOWED, providers);
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if (Config.LOGV) {
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Log.v("Location Accuracy", "Setting LOCATION_PROVIDERS_ALLOWED = " + providers);
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}
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// Inform the location manager about the changes
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mLocationManager.updateProviders();
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}
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/**
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* @return string containing a list of providers that have been enabled for use
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*/
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private String getAllowedProviders() {
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String allowedProviders =
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Settings.System.getString(getContentResolver(),
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Settings.System.LOCATION_PROVIDERS_ALLOWED);
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if (allowedProviders == null) {
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allowedProviders = "";
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}
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return allowedProviders;
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}
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public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
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if (LOCATION_NETWORK.equals(key) || LOCATION_GPS.equals(key)) {
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updateProviders();
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}
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}
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private boolean isToggled(Preference pref) {
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return ((CheckBoxPreference) pref).isChecked();
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}
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/**
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* For the user to disable keyguard, we first make them verify their
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* existing pattern.
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*/
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private class LockEnabledPref extends CheckBoxPreference {
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public LockEnabledPref(Context context) {
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super(context);
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}
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@Override
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protected void onClick() {
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if (isChecked() && mLockPatternUtils.savedPatternExists()) {
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confirmPatternThenDisable();
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} else {
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super.onClick();
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}
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}
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}
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/**
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* Launch screen to confirm the existing lock pattern.
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* @see #onActivityResult(int, int, android.content.Intent)
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*/
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private void confirmPatternThenDisable() {
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final Intent intent = new Intent();
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intent.setClassName("com.android.settings", "com.android.settings.ConfirmLockPattern");
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startActivityForResult(intent, CONFIRM_PATTERN_REQUEST_CODE);
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}
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/**
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* @see #confirmPatternThenDisable
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*/
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@Override
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protected void onActivityResult(int requestCode, int resultCode,
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Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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if (requestCode != CONFIRM_PATTERN_REQUEST_CODE) {
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return;
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}
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if (resultCode == Activity.RESULT_OK) {
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mLockPatternUtils.setLockPatternEnabled(false);
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}
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}
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}
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