User management screens

Customized Settings for restricted users
- Only some top-level settings panels available

User management
- Primary user can add and remove users
- User details screen to change name and list of enabled apps

Change-Id: Ia6beb991b427197a4ec2724ca3c9222073f6cf7d

src/com/android/settings/users/UserSettings.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2012 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.users;
+
+import android.content.pm.UserInfo;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceGroup;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+import java.util.List;
+
+public class UserSettings extends SettingsPreferenceFragment
+        implements OnPreferenceClickListener {
+
+    private static final String KEY_USER_LIST = "user_list";
+    private static final int MENU_ADD_USER = Menu.FIRST;
+
+    private PreferenceGroup mUserListCategory;
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        addPreferencesFromResource(R.xml.user_settings);
+        mUserListCategory = (PreferenceGroup) findPreference(KEY_USER_LIST);
+
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateUserList();
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        MenuItem addAccountItem = menu.add(0, MENU_ADD_USER, 0, R.string.user_add_user_menu);
+        addAccountItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM
+                | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        final int itemId = item.getItemId();
+        if (itemId == MENU_ADD_USER) {
+            onAddUserClicked();
+            return true;
+        } else {
+            return super.onOptionsItemSelected(item);
+        }
+    }
+
+    private void onAddUserClicked() {
+        ((PreferenceActivity) getActivity()).startPreferencePanel(
+                UserDetailsSettings.class.getName(), null, R.string.user_details_title,
+                null, this, 0);
+    }
+
+    private void updateUserList() {
+        List<UserInfo> users = getActivity().getPackageManager().getUsers();
+
+        mUserListCategory.removeAll();
+        for (UserInfo user : users) {
+            if (user.id == 0) continue;
+            Preference pref = new Preference(getActivity());
+            pref.setTitle(user.name);
+            pref.setOnPreferenceClickListener(this);
+            pref.setKey("id=" + user.id);
+            mUserListCategory.addPreference(pref);
+        }
+    }
+
+    @Override
+    public boolean onPreferenceClick(Preference pref) {
+        String sid = pref.getKey();
+        if (sid != null && sid.startsWith("id=")) {
+            int id = Integer.parseInt(sid.substring(3));
+            Bundle args = new Bundle();
+            args.putInt(UserDetailsSettings.EXTRA_USER_ID, id);
+            ((PreferenceActivity) getActivity()).startPreferencePanel(
+                    UserDetailsSettings.class.getName(),
+                    args, 0, pref.getTitle(), this, 0);
+            return true;
+        }
+        return false;
+    }
+}