Move ManageAccountsSettings into Settings.

- Add activity-alias for the Activity.
- Copy the Activity from AccountsAndSyncSettings.
- Fragmentize ManageAccountsSettings.
- Remove dependency toward AccountPreferenceBase, which is
  used in AccountsAndSyncSettings widely.
- Add missing implementation derived from AccountPrefernceBase.
- Copy dependent drawables.
- Copy dependent xmls
- Copy AccountPrefernce.java.
- Copy strings, adding CHAR LIMIT.
- Remove the logic which remove the preference when its destination
  Activity is missing. We already have the destination as
  Fragment, and it never disappear.

Change-Id: Id41c63d7064aebeaae31bcd84bf4fd20a5636dfe

AndroidManifest.xml

@@ -830,6 +830,17 @@
             </intent-filter>
         </activity>
 
+        <activity-alias
+            android:name="ManageAccountsSettings"
+            android:label="@string/sync_settings"
+            android:targetActivity="Settings">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.settings.SYNC_SETTINGS" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity-alias>
+
         <receiver android:name=".widget.SettingsAppWidgetProvider" android:label="@string/gadget_title">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />

res/drawable/ic_list_sync_anim.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/* //device/apps/common/res/drawable/status_icon_background.xml
+**
+** Copyright 2007, 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.
+*/
+-->
+<animation-list
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:oneshot="false">
+    <item android:drawable="@drawable/ic_list_sync_anim0" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim1" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim2" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim3" android:duration="150" />
+</animation-list>
+

res/layout/account_preference.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 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.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?android:attr/listPreferredItemHeight"
+    android:gravity="center_vertical"
+    android:paddingLeft="16dip"
+    android:paddingRight="?android:attr/scrollbarSize">
+
+    <ImageView
+        android:id="@+id/providerIcon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginRight="5dip"
+        android:layout_gravity="center" />
+
+    <RelativeLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginRight="6dip"
+        android:layout_marginTop="6dip"
+        android:layout_marginBottom="6dip"
+        android:layout_weight="1">
+
+        <TextView android:id="@+android:id/title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:singleLine="true"
+            android:textAppearance="?android:attr/textAppearanceMedium" />
+
+        <TextView android:id="@+android:id/summary"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@android:id/title"
+            android:layout_alignLeft="@android:id/title"
+            android:textAppearance="?android:attr/textAppearanceSmall"
+            android:maxLines="2" />
+
+    </RelativeLayout>
+
+    <ImageView
+        android:id="@+id/syncStatusIcon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="5dip"
+        android:layout_marginRight="7dip"
+        android:layout_gravity="center" />
+
+</LinearLayout>

res/layout/manage_accounts_screen.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/* //device/apps/common/assets/res/layout/list_content.xml
+**
+** Copyright 2006, 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.
+*/
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@android:id/list"
+        android:layout_width="match_parent"
+        android:layout_height="0dip"
+        android:layout_weight="1"
+        android:drawSelectorOnTop="false"
+        android:scrollbarAlwaysDrawVerticalTrack="true"
+    />
+
+    <TextView android:id="@+id/sync_settings_error_info"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/sync_is_failing" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:background="@android:drawable/bottom_bar">
+
+        <View
+            android:layout_width="0dip"
+            android:layout_height="match_parent"
+            android:layout_weight="1"/>
+
+        <Button android:id="@+id/add_account_button"
+            android:layout_width="0dip"
+            android:layout_height="wrap_content"
+            android:layout_weight="2"
+            android:layout_marginTop="5dip"
+            android:text="@string/add_account_label" />
+
+        <View
+            android:layout_width="0dip"
+            android:layout_height="match_parent"
+            android:layout_weight="1"/>
+    </LinearLayout>
+
+</LinearLayout>

res/values/strings.xml

@@ -2700,4 +2700,38 @@ found in the list of installed applications.</string>
 
     <!-- Do not translate. This is a stub which will be removed soon. -->
     <string name="time_zone_auto_stub" translatable="false">Select Time Zone</string>
+
+
+
+    <!-- Message when sync is currently failing [CHAR LIMIT=100] -->
+    <string name="sync_is_failing">Sync is currently experiencing problems. It will be back shortly.</string>
+    <!-- Button label to add an account [CHAR LIMIT=20] -->
+    <string name="add_account_label">Add account</string>
+    <!-- Header title for those settings relating to general syncing.
+         [CHAR LIMIT=30] -->
+    <string name="header_general_sync_settings">General sync settings</string>
+    <!-- Data synchronization settings screen, title of setting that controls whether background data should be used [CHAR LIMIT=30] -->
+    <string name="background_data">Background data</string>
+    <!-- Data synchronization settings screen, summary of setting that controls whether background data should be used [CHAR LIMIT=60] -->
+    <string name="background_data_summary">Applications can sync, send, and receive data at any time</string>
+    <!-- Data synchronization settings screen, title of dialog that confirms the user's unchecking of background data [CHAR LIMIT=20] -->
+    <string name="background_data_dialog_title">Attention</string>
+    <!-- Data synchronization settings screen, message of dialog that confirms the user's unchecking of background data [CHAR LIMIT=200] -->
+    <string name="background_data_dialog_message">Disabling background data extends battery life and lowers data use. Some applications may still use the background data connection.</string>
+    <!-- Data synchronization settings screen, setting option name
+         [CHAR LIMIT=30] -->
+    <string name="sync_automatically">Auto-sync</string>
+    <!-- Data synchronization settings screen, setting option summary text when check box is selected [CHAR LIMIT=60] -->
+    <string name="sync_automatically_summary">Applications sync data automatically</string>
+    <!-- Header title for list of accounts on Accounts & Synchronization settings [CHAR LIMIT=30] -->
+    <string name="header_manage_accounts">Manage accounts</string>
+
+    <!-- Sync status messages on Accounts & Synchronization settings --><skip/>
+    <!-- Sync status shown when sync is enabled [CHAR LIMIT=20] -->
+    <string name="sync_enabled">Sync is ON</string>
+    <!-- Sync status shown when sync is disabled [CHAR LIMIT=20] -->
+    <string name="sync_disabled">Sync is OFF</string>
+    <!-- Sync status shown when last sync resulted in an error [CHAR LIMIT=20] -->
+    <string name="sync_error">Sync error</string>
+
 </resources>

res/xml/manage_accounts_settings.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2008 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.
+-->
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <PreferenceCategory
+            android:title="@string/header_general_sync_settings" />
+
+    <CheckBoxPreference android:key="backgroundDataCheckBox"
+        android:persistent="false"
+        android:title="@string/background_data"
+        android:summary="@string/background_data_summary"/>
+
+    <CheckBoxPreference android:key="syncAutomaticallyCheckBox"
+        android:persistent="false"
+        android:dependency="backgroundDataCheckBox"
+        android:title="@string/sync_automatically"
+        android:summary="@string/sync_automatically_summary"/>
+
+    <PreferenceCategory android:key="manageAccountsCategory"
+            android:title="@string/header_manage_accounts" />
+
+</PreferenceScreen>

res/xml/settings.xml

@@ -93,10 +93,10 @@
              preference. -->
 
         <com.android.settings.IconPreferenceScreen
+            android:fragment="com.android.settings.ManageAccountsSettings"
             settings:icon="@drawable/ic_settings_sync"
             android:title="@string/sync_settings"
             android:key="sync_settings">
-            <intent android:action="android.settings.SYNC_SETTINGS" />
         </com.android.settings.IconPreferenceScreen>
 
         <!-- Privacy -->

src/com/android/settings/AccountPreference.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2008 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;
+
+import java.util.ArrayList;
+
+import android.accounts.Account;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.drawable.Drawable;
+import android.preference.Preference;
+import android.util.Log;
+import android.view.View;
+import android.widget.ImageView;
+
+/**
+ * AccountPreference is used to display a username, status and provider icon for an account on
+ * the device.
+ */
+public class AccountPreference extends Preference {
+    private static final String TAG = "AccountPreference";
+    public static final int SYNC_ENABLED = 0; // all know sync adapters are enabled and OK
+    public static final int SYNC_DISABLED = 1; // no sync adapters are enabled
+    public static final int SYNC_ERROR = 2; // one or more sync adapters have a problem
+    private int mStatus;
+    private Account mAccount;
+    private ArrayList<String> mAuthorities;
+    private Drawable mProviderIcon;
+    private ImageView mSyncStatusIcon;
+    private ImageView mProviderIconView;
+
+    public AccountPreference(Context context, Account account, Drawable icon,
+            ArrayList<String> authorities) {
+        super(context);
+        mAccount = account;
+        mAuthorities = authorities;
+        mProviderIcon = icon;
+        setLayoutResource(R.layout.account_preference);
+        setTitle(mAccount.name);
+        setSummary("");
+        // Add account info to the intent for AccountSyncSettings
+        Intent intent = new Intent("android.settings.ACCOUNT_SYNC_SETTINGS");
+        intent.putExtra("account", mAccount);
+        setIntent(intent);
+        setPersistent(false);
+        setSyncStatus(SYNC_DISABLED);
+    }
+
+    public Account getAccount() {
+        return mAccount;
+    }
+
+    public ArrayList<String> getAuthorities() {
+        return mAuthorities;
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        setSummary(getSyncStatusMessage(mStatus));
+        mProviderIconView = (ImageView) view.findViewById(R.id.providerIcon);
+        mProviderIconView.setImageDrawable(mProviderIcon);
+        mSyncStatusIcon = (ImageView) view.findViewById(R.id.syncStatusIcon);
+        mSyncStatusIcon.setImageResource(getSyncStatusIcon(mStatus));
+    }
+
+    public void setProviderIcon(Drawable icon) {
+        mProviderIcon = icon;
+        if (mProviderIconView != null) {
+            mProviderIconView.setImageDrawable(icon);
+        }
+    }
+
+    public void setSyncStatus(int status) {
+        mStatus = status;
+        if (mSyncStatusIcon != null) {
+            mSyncStatusIcon.setImageResource(getSyncStatusIcon(status));
+        }
+        setSummary(getSyncStatusMessage(status));
+    }
+
+    private int getSyncStatusMessage(int status) {
+        int res;
+        switch (status) {
+            case SYNC_ENABLED:
+                res = R.string.sync_enabled;
+                break;
+            case SYNC_DISABLED:
+                res = R.string.sync_disabled;
+                break;
+            case SYNC_ERROR:
+                res = R.string.sync_error;
+                break;
+            default:
+                res = R.string.sync_error;
+                Log.e(TAG, "Unknown sync status: " + status);
+        }
+        return res;
+    }
+
+    private int getSyncStatusIcon(int status) {
+        int res;
+        switch (status) {
+            case SYNC_ENABLED:
+                res = R.drawable.ic_sync_green;
+                break;
+            case SYNC_DISABLED:
+                res = R.drawable.ic_sync_grey;
+                break;
+            case SYNC_ERROR:
+                res = R.drawable.ic_sync_red;
+                break;
+            default:
+                res = R.drawable.ic_sync_red;
+                Log.e(TAG, "Unknown sync status: " + status);
+        }
+        return res;
+    }
+
+    @Override
+    public int compareTo(Preference other) {
+        if (!(other instanceof AccountPreference)) {
+            // Put other preference types above us
+            return 1;
+        }
+        return mAccount.name.compareTo(((AccountPreference) other).mAccount.name);
+    }
+}

src/com/android/settings/ManageAccountsSettings.java

@@ -0,0 +1,373 @@
+/*
+ * Copyright (C) 2008 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;
+
+import com.google.android.collect.Maps;
+
+import com.android.settings.SettingsPreferenceFragment.SettingsDialogFragment;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorDescription;
+import android.accounts.OnAccountsUpdateListener;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SyncAdapterType;
+import android.content.SyncInfo;
+import android.content.SyncStatusInfo;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Drawable;
+import android.net.ConnectivityManager;
+import android.os.Bundle;
+import android.preference.CheckBoxPreference;
+import android.preference.Preference;
+import android.preference.PreferenceCategory;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceScreen;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+
+public class ManageAccountsSettings extends PreferenceFragment
+        implements View.OnClickListener, OnAccountsUpdateListener, DialogCreatable {
+    private static final String TAG = ManageAccountsSettings.class.getSimpleName();
+
+    private static final String AUTHORITIES_FILTER_KEY = "authorities";
+    private static final boolean LDEBUG = Log.isLoggable(TAG, Log.DEBUG);
+
+    private static final String AUTO_SYNC_CHECKBOX_KEY = "syncAutomaticallyCheckBox";
+    private static final String MANAGE_ACCOUNTS_CATEGORY_KEY = "manageAccountsCategory";
+    private static final String BACKGROUND_DATA_CHECKBOX_KEY = "backgroundDataCheckBox";
+    private static final int DIALOG_DISABLE_BACKGROUND_DATA = 1;
+
+    private CheckBoxPreference mBackgroundDataCheckBox;
+    private PreferenceCategory mManageAccountsCategory;
+    private String[] mAuthorities;
+    private TextView mErrorInfoView;
+    private Button mAddAccountButton;
+    private CheckBoxPreference mAutoSyncCheckbox;
+
+    private SettingsDialogFragment mDialogFragment;
+
+    private AuthenticatorDescription[] mAuthDescs;
+    private Map<String, AuthenticatorDescription> mTypeToAuthDescription
+            = new HashMap<String, AuthenticatorDescription>();
+    private HashMap<String, ArrayList<String>> mAccountTypeToAuthorities = null;
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final View view = inflater.inflate(R.layout.manage_accounts_screen, container, false);
+        return view;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        final Activity activity = getActivity();
+        addPreferencesFromResource(R.xml.manage_accounts_settings);
+        final View view = getView();
+
+        mErrorInfoView = (TextView)view.findViewById(R.id.sync_settings_error_info);
+        mErrorInfoView.setVisibility(View.GONE);
+        mErrorInfoView.setCompoundDrawablesWithIntrinsicBounds(
+                activity.getResources().getDrawable(R.drawable.ic_list_syncerror),
+                null, null, null);
+
+        mBackgroundDataCheckBox = (CheckBoxPreference) findPreference(BACKGROUND_DATA_CHECKBOX_KEY);
+        mAutoSyncCheckbox = (CheckBoxPreference) findPreference(AUTO_SYNC_CHECKBOX_KEY);
+
+        mManageAccountsCategory = (PreferenceCategory)findPreference(MANAGE_ACCOUNTS_CATEGORY_KEY);
+        mAuthorities = activity.getIntent().getStringArrayExtra(AUTHORITIES_FILTER_KEY);
+        mAddAccountButton = (Button)view.findViewById(R.id.add_account_button);
+        mAddAccountButton.setOnClickListener(this);
+
+        AccountManager.get(activity).addOnAccountsUpdatedListener(this, null, true);
+        updateAuthDescriptions(activity);
+    }
+
+    @Override
+    public void onDestroy() {
+        AccountManager.get(getActivity()).removeOnAccountsUpdatedListener(this);
+        super.onDestroy();
+    }
+
+    @Override
+    public boolean onPreferenceTreeClick(PreferenceScreen preferences, Preference preference) {
+        if (preference == mBackgroundDataCheckBox) {
+            final ConnectivityManager connManager = (ConnectivityManager)
+                    getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
+            final boolean oldBackgroundDataSetting = connManager.getBackgroundDataSetting();
+            final boolean backgroundDataSetting = mBackgroundDataCheckBox.isChecked();
+            if (oldBackgroundDataSetting != backgroundDataSetting) {
+                if (backgroundDataSetting) {
+                    setBackgroundDataInt(true);
+                    onSyncStateUpdated();
+                } else {
+                    // This will get unchecked only if the user hits "Ok"
+                    mBackgroundDataCheckBox.setChecked(true);
+                    showDialog(DIALOG_DISABLE_BACKGROUND_DATA);
+                }
+            }
+        } else if (preference == mAutoSyncCheckbox) {
+            ContentResolver.setMasterSyncAutomatically(mAutoSyncCheckbox.isChecked());
+            onSyncStateUpdated();
+        } else {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public Dialog onCreateDialog(int id) {
+        switch (id) {
+            case DIALOG_DISABLE_BACKGROUND_DATA:
+                final CheckBoxPreference pref =
+                    (CheckBoxPreference) findPreference(BACKGROUND_DATA_CHECKBOX_KEY);
+                return new AlertDialog.Builder(getActivity())
+                        .setTitle(R.string.background_data_dialog_title)
+                        .setIcon(android.R.drawable.ic_dialog_alert)
+                        .setMessage(R.string.background_data_dialog_message)
+                        .setPositiveButton(android.R.string.ok,
+                                    new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int which) {
+                                    setBackgroundDataInt(false);
+                                    pref.setChecked(false);
+                                    onSyncStateUpdated();
+                                }
+                            })
+                        .setNegativeButton(android.R.string.cancel, null)
+                        .create();
+        }
+
+        return null;
+    }
+
+    void showDialog(int dialogId) {
+        if (mDialogFragment != null) {
+            Log.e(TAG, "Old dialog fragment not null!");
+        }
+        mDialogFragment = new SettingsDialogFragment(this, dialogId);
+        mDialogFragment.show(getActivity().getFragmentManager(), Integer.toString(dialogId));
+    }
+
+    private void setBackgroundDataInt(boolean enabled) {
+        final ConnectivityManager connManager = (ConnectivityManager)
+                getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
+        connManager.setBackgroundDataSetting(enabled);
+    }
+
+    private void onSyncStateUpdated() {
+        // Set background connection state
+        final ConnectivityManager connManager = (ConnectivityManager)
+                getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
+        final boolean backgroundDataSetting = connManager.getBackgroundDataSetting();
+        mBackgroundDataCheckBox.setChecked(backgroundDataSetting);
+        boolean masterSyncAutomatically = ContentResolver.getMasterSyncAutomatically();
+        mAutoSyncCheckbox.setChecked(masterSyncAutomatically);
+
+        // iterate over all the preferences, setting the state properly for each
+        SyncInfo currentSync = ContentResolver.getCurrentSync();
+
+        boolean anySyncFailed = false; // true if sync on any account failed
+
+        // only track userfacing sync adapters when deciding if account is synced or not
+        final SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypes();
+        HashSet<String> userFacing = new HashSet<String>();
+        for (int k = 0, n = syncAdapters.length; k < n; k++) {
+            final SyncAdapterType sa = syncAdapters[k];
+            if (sa.isUserVisible()) {
+                userFacing.add(sa.authority);
+            }
+        }
+        for (int i = 0, count = mManageAccountsCategory.getPreferenceCount(); i < count; i++) {
+            Preference pref = mManageAccountsCategory.getPreference(i);
+            if (! (pref instanceof AccountPreference)) {
+                continue;
+            }
+
+            AccountPreference accountPref = (AccountPreference) pref;
+            Account account = accountPref.getAccount();
+            int syncCount = 0;
+            boolean syncIsFailing = false;
+            final ArrayList<String> authorities = accountPref.getAuthorities();
+            if (authorities != null) {
+                for (String authority : authorities) {
+                    SyncStatusInfo status = ContentResolver.getSyncStatus(account, authority);
+                    boolean syncEnabled = ContentResolver.getSyncAutomatically(account, authority)
+                            && masterSyncAutomatically
+                            && backgroundDataSetting
+                            && (ContentResolver.getIsSyncable(account, authority) > 0);
+                    boolean authorityIsPending = ContentResolver.isSyncPending(account, authority);
+                    boolean activelySyncing = currentSync != null
+                            && currentSync.authority.equals(authority)
+                            && new Account(currentSync.account.name, currentSync.account.type)
+                                    .equals(account);
+                    boolean lastSyncFailed = status != null
+                            && syncEnabled
+                            && status.lastFailureTime != 0
+                            && status.getLastFailureMesgAsInt(0)
+                               != ContentResolver.SYNC_ERROR_SYNC_ALREADY_IN_PROGRESS;
+                    if (lastSyncFailed && !activelySyncing && !authorityIsPending) {
+                        syncIsFailing = true;
+                        anySyncFailed = true;
+                    }
+                    syncCount += syncEnabled && userFacing.contains(authority) ? 1 : 0;
+                }
+            } else {
+                if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                    Log.v(TAG, "no syncadapters found for " + account);
+                }
+            }
+            int syncStatus = AccountPreference.SYNC_DISABLED;
+            if (syncIsFailing) {
+                syncStatus = AccountPreference.SYNC_ERROR;
+            } else if (syncCount == 0) {
+                syncStatus = AccountPreference.SYNC_DISABLED;
+            } else if (syncCount > 0) {
+                syncStatus = AccountPreference.SYNC_ENABLED;
+            }
+            accountPref.setSyncStatus(syncStatus);
+        }
+
+        mErrorInfoView.setVisibility(anySyncFailed ? View.VISIBLE : View.GONE);
+    }
+
+    @Override
+    public void onAccountsUpdated(Account[] accounts) {
+        mManageAccountsCategory.removeAll();
+        for (int i = 0, n = accounts.length; i < n; i++) {
+            final Account account = accounts[i];
+            final ArrayList<String> auths = getAuthoritiesForAccountType(account.type);
+
+            boolean showAccount = true;
+            if (mAuthorities != null && auths != null) {
+                showAccount = false;
+                for (String requestedAuthority : mAuthorities) {
+                    if (auths.contains(requestedAuthority)) {
+                        showAccount = true;
+                        break;
+                    }
+                }
+            }
+
+            if (showAccount) {
+                final Drawable icon = getDrawableForType(account.type);
+                final AccountPreference preference =
+                        new AccountPreference(getActivity(), account, icon, auths);
+                mManageAccountsCategory.addPreference(preference);
+            }
+        }
+        onSyncStateUpdated();
+    }
+
+    private void onAuthDescriptionsUpdated() {
+        // Update account icons for all account preference items
+        for (int i = 0; i < mManageAccountsCategory.getPreferenceCount(); i++) {
+            AccountPreference pref = (AccountPreference) mManageAccountsCategory.getPreference(i);
+            pref.setProviderIcon(getDrawableForType(pref.getAccount().type));
+            pref.setSummary(getLabelForType(pref.getAccount().type));
+        }
+    }
+
+    public void onClick(View v) {
+        if (v == mAddAccountButton) {
+            Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
+            intent.putExtra(AUTHORITIES_FILTER_KEY, mAuthorities);
+            startActivity(intent);
+        }
+    }
+
+    /* The logic below is copied from AcountPrefernceBase */
+
+    private Drawable getDrawableForType(final String accountType) {
+        Drawable icon = null;
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+            try {
+                AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+                Context authContext = getActivity().createPackageContext(desc.packageName, 0);
+                icon = authContext.getResources().getDrawable(desc.iconId);
+            } catch (PackageManager.NameNotFoundException e) {
+                // TODO: place holder icon for missing account icons?
+                Log.w(TAG, "No icon for account type " + accountType);
+            }
+        }
+        return icon;
+    }
+
+    private CharSequence getLabelForType(final String accountType) {
+        CharSequence label = null;
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+             try {
+                 AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+                 Context authContext = getActivity().createPackageContext(desc.packageName, 0);
+                 label = authContext.getResources().getText(desc.labelId);
+             } catch (PackageManager.NameNotFoundException e) {
+                 Log.w(TAG, "No label for account type " + ", type " + accountType);
+             }
+        }
+        return label;
+    }
+
+    private ArrayList<String> getAuthoritiesForAccountType(String type) {
+        if (mAccountTypeToAuthorities == null) {
+            mAccountTypeToAuthorities = Maps.newHashMap();
+            SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypes();
+            for (int i = 0, n = syncAdapters.length; i < n; i++) {
+                final SyncAdapterType sa = syncAdapters[i];
+                ArrayList<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
+                if (authorities == null) {
+                    authorities = new ArrayList<String>();
+                    mAccountTypeToAuthorities.put(sa.accountType, authorities);
+                }
+                if (LDEBUG) {
+                    Log.d(TAG, "added authority " + sa.authority + " to accountType "
+                            + sa.accountType);
+                }
+                authorities.add(sa.authority);
+            }
+        }
+        return mAccountTypeToAuthorities.get(type);
+    }
+
+    private void updateAuthDescriptions(Context context) {
+        mAuthDescs = AccountManager.get(context).getAuthenticatorTypes();
+        for (int i = 0; i < mAuthDescs.length; i++) {
+            mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]);
+        }
+        onAuthDescriptionsUpdated();
+    }
+}

src/com/android/settings/Settings.java

@@ -235,8 +235,6 @@ public class Settings extends Activity
         private void updatePreferenceList() {
             final Activity activity = getActivity();
             PreferenceGroup parent = (PreferenceGroup) findPreference(KEY_PARENT);
-            Utils.updatePreferenceToSpecificActivityOrRemove(activity, parent,
-                    KEY_SYNC_SETTINGS, 0);
             Preference dockSettings = parent.findPreference(KEY_DOCK_SETTINGS);
             if (activity.getResources().getBoolean(R.bool.has_dock_settings) == false
                     && dockSettings != null) {

src/com/android/settings/Utils.java

@@ -16,14 +16,12 @@
 
 package com.android.settings;
 
-import java.util.List;
-
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.content.res.Resources.NotFoundException;
 import android.graphics.drawable.Drawable;
@@ -33,6 +31,9 @@ import android.preference.Preference;
 import android.preference.PreferenceGroup;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
+import android.util.Log;
+
+import java.util.List;
 
 public class Utils {