improve (#554)
diff --git a/docs/docs/api/android-apis.md b/docs/docs/api/android-apis.md
index 81e20c0..974d2ff 100644
--- a/docs/docs/api/android-apis.md
+++ b/docs/docs/api/android-apis.md
@@ -6,22 +6,22 @@
version: 2.1
---
-# WXSDKInstace
+# WXSDKInstance
## Custom events
Used for a custom control for event notifications, such as custom click events, response drop events, and so on.
-```
-void fireEvent(elementRef,type)
-void fireEvent(elementRef,type, data)
-void fireEvent(elementRef,type,data,domChanges)
+```
+void fireEvent(elementRef,type)
+void fireEvent(elementRef,type, data)
+void fireEvent(elementRef,type,data,domChanges)
```
-* `elementRef`(_String_): The event occurred for the control ID。
+* `elementRef`(_String_): The event occurred for the control ID。
-* `type`(_String_): Custom events, Weex defaults to a custom event starting with onXxxxx. OnPullDown (drop-down event)
+* `type`(_String_): Custom events, Weex defaults to a custom event starting with onXxxxx. OnPullDown (drop-down event)
-* `data`(_Map<String, Object>_): Need to reveal the parameters, such as the current control of the size, coordinates and other information。
+* `data`(_Map<String, Object>_): Need to reveal the parameters, such as the current control of the size, coordinates and other information。
* `domChanges`(_Map<String, Object>_): Update ref for the control's Attribute and Style
@@ -42,14 +42,14 @@
//Continuous connection
callback.invokeAndKeepAlive(data);
//Invoke method and invokeAndKeepAlive two methods of choice }
-}
+}
```
## OnWXScrollListener
-Weex gets the scroll event You can register `registerOnWXScrollListener` via `WXSDKInstance`
+Weex gets the scroll event You can register `registerOnWXScrollListener` via `WXSDKInstance`
-## Other Introduction
+## Other Introduction
### setSize
