Add a temporary user switcher to quick settings

Change-Id: I7ebe29049812fe5ac98b702f3378a1121d5d6bb7

1 files changed, 172 insertions, 0 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/settings/UserSwitcherHostView.java b/packages/SystemUI/src/com/android/systemui/settings/UserSwitcherHostView.java
new file mode 100644
index 0000000..87ebcc1
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/settings/UserSwitcherHostView.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2014 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.systemui.settings;
+
+import com.android.systemui.R;
+
+import android.app.ActivityManagerNative;
+import android.content.Context;
+import android.content.pm.UserInfo;
+import android.os.RemoteException;
+import android.os.UserManager;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManagerGlobal;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+/**
+ * A quick and dirty view to show a user switcher.
+ */
+public class UserSwitcherHostView extends FrameLayout implements ListView.OnItemClickListener {
+
+    private static final String TAG = "UserSwitcherDialog";
+
+    private ArrayList<UserInfo> mUserInfo = new ArrayList<UserInfo>();
+    private Adapter mAdapter = new Adapter();
+    private UserManager mUserManager;
+    private Runnable mFinishRunnable;
+    private ListView mListView;
+
+    public UserSwitcherHostView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+
+        if (isInEditMode()) {
+            return;
+        }
+        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
+    }
+
+    public UserSwitcherHostView(Context context, AttributeSet attrs) {
+        this(context, attrs, com.android.internal.R.attr.listViewStyle);
+    }
+
+    public UserSwitcherHostView(Context context) {
+        this(context, null);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        mListView = (ListView) findViewById(android.R.id.list);
+        mListView.setAdapter(mAdapter);
+        mListView.setOnItemClickListener(this);
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> l, View v, int position, long id) {
+        int userId = mAdapter.getItem(position).id;
+        try {
+            WindowManagerGlobal.getWindowManagerService().lockNow(null);
+            ActivityManagerNative.getDefault().switchUser(userId);
+            finish();
+        } catch (RemoteException e) {
+            Log.e(TAG, "Couldn't switch user.", e);
+        }
+    }
+
+    private void finish() {
+        if (mFinishRunnable != null) {
+            mFinishRunnable.run();
+        }
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (event.getAction() == MotionEvent.ACTION_UP) {
+            finish();
+        }
+        return true;
+    }
+
+    @Override
+    protected void onVisibilityChanged(View changedView, int visibility) {
+        super.onVisibilityChanged(changedView, visibility);
+        // A gross hack to get rid of the switcher when the shade is collapsed.
+        if (visibility != VISIBLE) {
+            finish();
+        }
+    }
+
+    public void setFinishRunnable(Runnable finishRunnable) {
+        mFinishRunnable = finishRunnable;
+    }
+
+    public void refreshUsers() {
+        mUserInfo.clear();
+        mUserInfo.addAll(mUserManager.getUsers(true));
+        mAdapter.notifyDataSetChanged();
+    }
+
+    private class Adapter extends BaseAdapter {
+
+        @Override
+        public int getCount() {
+            return mUserInfo.size();
+        }
+
+        @Override
+        public UserInfo getItem(int position) {
+            return mUserInfo.get(position);
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return getItem(position).serialNumber;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            if (convertView == null || (!(convertView.getTag() instanceof ViewHolder))) {
+                convertView = createView(parent);
+            }
+            ViewHolder h = (ViewHolder) convertView.getTag();
+            bindView(h, getItem(position));
+            return convertView;
+        }
+
+        private View createView(ViewGroup parent) {
+            View v = LayoutInflater.from(getContext()).inflate(
+                    R.layout.user_switcher_item, parent, false);
+            ViewHolder h = new ViewHolder();
+            h.name = (TextView) v.findViewById(R.id.user_name);
+            h.picture = (ImageView) v.findViewById(R.id.user_picture);
+            v.setTag(h);
+            return v;
+        }
+
+        private void bindView(ViewHolder h, UserInfo item) {
+            h.name.setText(item.name);
+            h.picture.setImageBitmap(mUserManager.getUserIcon(item.id));
+        }
+
+        class ViewHolder {
+            TextView name;
+            ImageView picture;
+        }
+    }
+}