Enable blurOnSubmit for text input in android

Summary:PR for https://github.com/facebook/react-native/issues/6098, Added tests to UIExplorer based on existing iOS example.

Before:
![blur_true](https://cloud.githubusercontent.com/assets/11550281/13401854/cd66117a-df33-11e5-875d-e1f132e2fc82.gif)

After:
![blur_false](https://cloud.githubusercontent.com/assets/11550281/13401874/de1dd1ce-df33-11e5-8210-e6bee80240fb.gif)
Closes https://github.com/facebook/react-native/pull/6215

Differential Revision: D3000042

Pulled By: mkonicek

fb-gh-sync-id: 7f01270580b198498505d92e38a456c0b3a01488
shipit-source-id: 7f01270580b198498505d92e38a456c0b3a01488

Examples/UIExplorer/TextInputExample.android.js

@@ -178,6 +178,60 @@ class TokenizedTextExample extends React.Component {
   }
 }
 
+var BlurOnSubmitExample = React.createClass({
+  focusNextField(nextField) {
+    this.refs[nextField].focus();
+  },
+
+  render: function() {
+    return (
+      <View>
+        <TextInput
+          ref="1"
+          style={styles.singleLine}
+          placeholder="blurOnSubmit = false"
+          returnKeyType="next"
+          blurOnSubmit={false}
+          onSubmitEditing={() => this.focusNextField('2')}
+        />
+        <TextInput
+          ref="2"
+          style={styles.singleLine}
+          keyboardType="email-address"
+          placeholder="blurOnSubmit = false"
+          returnKeyType="next"
+          blurOnSubmit={false}
+          onSubmitEditing={() => this.focusNextField('3')}
+        />
+        <TextInput
+          ref="3"
+          style={styles.singleLine}
+          keyboardType="url"
+          placeholder="blurOnSubmit = false"
+          returnKeyType="next"
+          blurOnSubmit={false}
+          onSubmitEditing={() => this.focusNextField('4')}
+        />
+        <TextInput
+          ref="4"
+          style={styles.singleLine}
+          keyboardType="numeric"
+          placeholder="blurOnSubmit = false"
+          blurOnSubmit={false}
+          onSubmitEditing={() => this.focusNextField('5')}
+        />
+        <TextInput
+          ref="5"
+          style={styles.singleLine}
+          keyboardType="numbers-and-punctuation"
+          placeholder="blurOnSubmit = true"
+          returnKeyType="done"
+        />
+      </View>
+    );
+  }
+});
+
 var styles = StyleSheet.create({
   multiline: {
     height: 60,
@@ -286,6 +340,10 @@ exports.examples = [
       return <View>{examples}</View>;
     }
   },
+  {
+    title: 'Blur on submit',
+    render: function(): ReactElement { return <BlurOnSubmitExample />; },
+  },
   {
     title: 'Event handling',
     render: function(): ReactElement { return <TextEventsExample />; },