简单的页面多种状态展示，支持空页面，错误页面，加载中页面
build.gradle依赖
implementation 'com.savion:LoadingLayout:1.0.0'使用方法
布局文件
<com.savion.loadinglayout.LoadingLayout
android:id="@+id/loadinglayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Hello World!" />
</com.savion.loadinglayout.LoadingLayout>Activity
//加载中
load.showLoading();
//空页面
load.showEmpty();
//错误页面
load.showError();
//内容页面
load.showContent();
LoadingLayout的child只能有一个，不支持多个child。
Copyright [2018] [savion]
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.