前言：
开发应用层中，遇到若干问题，从而编写一些Android应用层常用的类库。
如何发布类库，请阅读AndroidStudio 发布开源库Library到jcenter。
当前项目中若干库的介绍：
| 库名 | 介绍 |
|---|---|
| PhotoCropLib | 调用android 系统自带的功能，实现拍照，图库，裁剪 |
| SystemDownlaod | 通过Android系统自带的DownloadManager，实现下载，进度查询，取消任务 |
| SystemNotificationLib | 处理android版本差异和国产ROM中Notification问题 |
| SystemUtils | 应用层开发中常见的逻辑库 |
| X5BridgeLib | 集成腾讯X5内核和JSBridge库，处理常见的混合式开发问题 |
Copyright 2019 HeXinGen.
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.