#一个是官方的，还有一个是在这基础上写的
NOTE: This is a port of the original Cheesesquare Sample by Chris Banes, available on GitHub: https://github.com/chrisbanes/cheesesquare
Demos the new Android Design library. This is not an exhaustive sample, but shows some of the important features in the Design library:
- Collapsing Toolbar
- FloatingActionButton
- View anchoring
- NavigationView
- Snackbar
- Android SDK v22
- Android Build Tools v22.0.1
- Android Support Repository v22.2
Copyright 2014 The Android Open Source Project, Inc.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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.