Update README.md

Author: imkarl

README.md

@@ -1,2 +1,83 @@
 # WaitView
 显示等待加载状态的View
+
+[![](https://jitpack.io/v/imkarl/WaitView.svg)](https://jitpack.io/#imkarl/WaitView)
+
+
+# Introduce
+
+- 默认状态
+
+![](https://github.com/ImKarl/WaitView/blob/master/captures/layout_default.png)
+
+- 等待加载的状态
+
+![](https://github.com/ImKarl/WaitView/blob/master/captures/layout_waitview.png)
+
+
+# Features
+
+- 简单高效，一句话完成所有控件的状态切换、恢复
+- 兼容性强，支持所有系统控件、自定义控件
+- 可定制性，自定义渲染规则，按需配置
+
+
+# Usage
+
+Gradle:
+
+```
+compile 'com.github.ImKarl:WaitView:{latestVersion}'
+```
+
+
+# Sample
+
+- 渲染
+
+```
+单个View
+WaitViewController.from(mRootView).render();
+
+所有子View
+WaitViewController.from(mRootView).renderChilds();
+```
+
+
+- 移除
+
+```
+单个View
+WaitViewController.from(mRootView).remove();
+
+所有子View
+WaitViewController.from(mRootView).removeChilds();
+```
+
+
+- 额外的可配置项
+
+```
+WaitViewController controller = WaitViewController.from(mRootView);
+
+颜色：@ColorInt
+controller.color(color);
+
+透明度：@IntRange(from=0, to=255)
+controller.alpha(alpha);
+
+圆角半径：radius
+controller.radius(radius);
+
+绘制区域：如 new Rect(0, 0, view.getWidth(), view.getHeight())
+controller.drawRect(rect);
+controller.drawRect(width, height);
+
+过滤器：如 new SimpleOnWaitViewFilter()
+controller.filter(filter);
+```
+
+
+- 更详细的案例
+
+请查看 [sample](https://github.com/ImKarl/WaitView/blob/master/library/src/java/cn/imkarl/waitview/sample/MainActivity.java)