Show the accounts on the factory reset screen.

Bug: 2823530
Change-Id: Idbf46aa59f3c529a3a3ef2d7d4e607822b34f51d

res/layout/master_clear.xml

@@ -35,6 +35,22 @@
                 android:layout_height="wrap_content"
                 android:textSize="18sp"
                 android:text="@string/master_clear_desc" />
+            <TextView android:id="@+id/accounts_label"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:visibility="gone"
+                android:textSize="18sp"
+                android:text="@string/master_clear_accounts" />
+            <LinearLayout android:id="@+id/accounts"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:orientation="vertical"
+                    android:visibility="gone" />
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textSize="18sp"
+                android:text="@string/master_clear_desc_erase_external_storage" />
             <LinearLayout android:id="@+id/erase_external_container"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"

res/layout/master_clear_account.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 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.
+-->
+
+<TextView xmlns:android="http://schemas.android.com/apk/res/android" 
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:textSize="18sp"
+    android:drawablePadding="5dip"
+    android:gravity="center_vertical" />
+

res/values/strings.xml

@@ -1597,11 +1597,14 @@
     <!-- SD card & phone storage settings screen, setting option summary text under Internal phone storage heading -->
     <string name="master_clear_summary" product="default">Erases all data on phone</string>
     <!-- SD card & phone storage settings screen, message on screen after user selects Factory data reset [CHAR LIMIT=NONE] -->
-    <string name="master_clear_desc" product="tablet">"This will erase all data from your tablet\'s <b>internal storage</b>, including:\n\n<li>Your Google account</li>\n<li>System and application data and settings</li>\n<li>Downloaded applications</li>\n\nTo clear all data on this tablet the <b>USB storage</b> needs to be erased.\n\n"</string>
+    <string name="master_clear_desc" product="tablet">"This will erase all data from your tablet\'s <b>internal storage</b>, including:\n\n<li>Your Google account</li>\n<li>System and application data and settings</li>\n<li>Downloaded applications</li>"</string>
     <!-- SD card & phone storage settings screen, message on screen after user selects Factory data reset [CHAR LIMIT=NONE] -->
-    <string name="master_clear_desc" product="nosdcard">"This will erase all data from your phone\'s <b>internal storage</b>, including:\n\n<li>Your Google account</li>\n<li>System and application data and settings</li>\n<li>Downloaded applications</li>\n\nTo clear all data on this phone the <b>USB storage</b> needs to be erased.\n\n"</string>
+    <string name="master_clear_desc" product="default">"This will erase all data from your phone\'s <b>internal storage</b>, including:\n\n<li>Your Google account</li>\n<li>System and application data and settings</li>\n<li>Downloaded applications"</li></string>
-    <!-- SD card & phone storage settings screen, message on screen after user selects Factory data reset -->
+    <!-- SD card & phone storage settings screen, instructions and list of current accounts.  The list of accounts follows this text[CHAR LIMIT=NONE] -->
-    <string name="master_clear_desc" product="default">"This will erase all data from your phone\'s <b>internal storage</b>, including:\n\n<li>Your Google account</li>\n<li>System and application data and settings</li>\n<li>Downloaded applications</li>\n\nTo also clear music, pictures, and other user data, the <b>SD card</b> needs to be erased.\n\n"</string>
+    <string name="master_clear_accounts" product="default">"\n\nYou are currently signed into the following accounts:\n"</string>
+    <!-- SD card & phone storage settings screen, instructions about whether to also erase the external storage (SD card) when erasing the internal storage [CHAR LIMIT=NONE] -->
+    <string name="master_clear_desc_erase_external_storage" product="nosdcard">"\n\nTo also clear music, pictures, and other user data, the <b>USB storage</b> needs to be erased."</string>
+    <string name="master_clear_desc_erase_external_storage" product="default">"\n\nTo also clear music, pictures, and other user data, the <b>SD card</b> needs to be erased."</string>
     <!-- SD card & phone storage settings screen, label for check box to erase USB storage [CHAR LIMIT=30] -->
     <string name="erase_external_storage" product="nosdcard">Erase USB storage</string>
     <!-- SD card & phone storage settings screen, label for check box to erase SD card [CHAR LIMIT=30] -->

src/com/android/settings/MasterClear.java

@@ -18,18 +18,27 @@ package com.android.settings;
 
 import com.android.settings.R;
 
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorDescription;
 import android.app.Activity;
 import android.app.Fragment;
+import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.CheckBox;
+import android.widget.LinearLayout;
+import android.widget.TextView;
 
 /**
  * Confirm and execute a reset of the device to a clean "just out of the box"
@@ -42,6 +51,7 @@ import android.widget.CheckBox;
  * This is the initial screen.
  */
 public class MasterClear extends Fragment {
+    private static final String TAG = "MasterClear";
 
     private static final int KEYGUARD_REQUEST = 55;
 
@@ -130,12 +140,72 @@ public class MasterClear extends Fragment {
                 mExternalStorage.toggle();
             }
         });
+
+        loadAccountList();
+    }
+
+    private void loadAccountList() {
+        View accountsLabel = mContentView.findViewById(R.id.accounts_label);
+        LinearLayout contents = (LinearLayout)mContentView.findViewById(R.id.accounts);
+
+        Context context = getActivity();
+
+        AccountManager mgr = AccountManager.get(context);
+        Account[] accounts = mgr.getAccounts();
+        final int N = accounts.length;
+        if (N == 0) {
+            accountsLabel.setVisibility(View.GONE);
+            contents.setVisibility(View.GONE);
+            return;
+        }
+
+        LayoutInflater inflater = (LayoutInflater)context.getSystemService(
+                Context.LAYOUT_INFLATER_SERVICE);
+
+        AuthenticatorDescription[] descs = AccountManager.get(context).getAuthenticatorTypes();
+        final int M = descs.length;
+
+        for (int i=0; i<N; i++) {
+            Account account = accounts[i];
+            AuthenticatorDescription desc = null;
+            for (int j=0; j<M; j++) {
+                if (account.type.equals(descs[j].type)) {
+                    desc = descs[j];
+                    break;
+                }
+            }
+            if (desc == null) {
+                Log.w(TAG, "No descriptor for account name=" + account.name
+                        + " type=" + account.type);
+                continue;
+            }
+            Drawable icon;
+            try {
+                Context authContext = context.createPackageContext(desc.packageName, 0);
+                icon = authContext.getResources().getDrawable(desc.iconId);
+            } catch (PackageManager.NameNotFoundException e) {
+                Log.w(TAG, "No icon for account type " + desc.type);
+                icon = null;
+            }
+
+            TextView child = (TextView)inflater.inflate(R.layout.master_clear_account,
+                    contents, false);
+            child.setText(account.name);
+            if (icon != null) {
+                child.setCompoundDrawablesWithIntrinsicBounds(icon, null, null, null);
+            }
+            contents.addView(child);
+        }
+
+        accountsLabel.setVisibility(View.VISIBLE);
+        contents.setVisibility(View.VISIBLE);
     }
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
         mContentView = inflater.inflate(R.layout.master_clear, null);
+
         establishInitialState();
         return mContentView;
     }