Animated: Remove defaultProps Parameter

Summary:
Simplifies `Animated` by removing `defaultProps` in favor of composition and a more isolated fix for scroll components.

Changelog:
[Breaking] Removed second defaultProps argument from createAnimatedComponent.

Reviewed By: TheSavior

Differential Revision: D18289648

fbshipit-source-id: 4e91c34297c3231f2bf691da74a7a624ca0b4f29

Libraries/Animated/src/components/AnimatedFlatList.js

@@ -10,10 +10,19 @@
 
 'use strict';
 
+import * as React from 'react';
+
 const FlatList = require('../../../Lists/FlatList');
 
 const createAnimatedComponent = require('../createAnimatedComponent');
 
-module.exports = (createAnimatedComponent(FlatList, {
-  scrollEventThrottle: 0.0001,
-}): $FlowFixMe);
+/**
+ * @see https://github.com/facebook/react-native/commit/b8c8562
+ */
+const FlatListWithEventThrottle = React.forwardRef((props, ref) => (
+  <FlatList scrollEventThrottle={0.0001} {...props} ref={ref} />
+));
+
+module.exports = (createAnimatedComponent(
+  FlatListWithEventThrottle,
+): $FlowFixMe);

Libraries/Animated/src/components/AnimatedScrollView.js

@@ -10,10 +10,19 @@
 
 'use strict';
 
+import * as React from 'react';
+
 const ScrollView = require('../../../Components/ScrollView/ScrollView');
 
 const createAnimatedComponent = require('../createAnimatedComponent');
 
-module.exports = (createAnimatedComponent(ScrollView, {
-  scrollEventThrottle: 0.0001,
-}): $FlowFixMe);
+/**
+ * @see https://github.com/facebook/react-native/commit/b8c8562
+ */
+const ScrollViewWithEventThrottle = React.forwardRef((props, ref) => (
+  <ScrollView scrollEventThrottle={0.0001} {...props} ref={ref} />
+));
+
+module.exports = (createAnimatedComponent(
+  ScrollViewWithEventThrottle,
+): $FlowFixMe);

Libraries/Animated/src/components/AnimatedSectionList.js

@@ -10,10 +10,19 @@
 
 'use strict';
 
+import * as React from 'react';
+
 const SectionList = require('../../../Lists/SectionList');
 
 const createAnimatedComponent = require('../createAnimatedComponent');
 
-module.exports = (createAnimatedComponent(SectionList, {
-  scrollEventThrottle: 0.0001,
-}): $FlowFixMe);
+/**
+ * @see https://github.com/facebook/react-native/commit/b8c8562
+ */
+const SectionListWithEventThrottle = React.forwardRef((props, ref) => (
+  <SectionList scrollEventThrottle={0.0001} {...props} ref={ref} />
+));
+
+module.exports = (createAnimatedComponent(
+  SectionListWithEventThrottle,
+): $FlowFixMe);

Libraries/Animated/src/createAnimatedComponent.js

@@ -27,7 +27,6 @@ export type AnimatedComponentType<Props, Instance> = React.AbstractComponent<
 
 function createAnimatedComponent<Props, Instance>(
   Component: React.AbstractComponent<Props, Instance>,
-  defaultProps: any,
 ): AnimatedComponentType<Props, Instance> {
   invariant(
     typeof Component !== 'function' ||
@@ -165,7 +164,6 @@ function createAnimatedComponent<Props, Instance>(
       const props = this._propsAnimated.__getValue();
       return (
         <Component
-          {...defaultProps}
           {...props}
           ref={this._setComponentRef}
           // The native driver updates views directly through the UI thread so we

jest/setup.js

@@ -136,8 +136,8 @@ jest
       '../Libraries/Animated/src/createAnimatedComponent',
     );
 
-    return (Component, defaultProps) => {
-      const Wrapped = createAnimatedComponent(Component, defaultProps);
+    return Component => {
+      const Wrapped = createAnimatedComponent(Component);
 
       Wrapped.__skipSetNativeProps_FOR_TESTS_ONLY = true;