chore(lib) make the example less glitchy by fixing the width

example/js/CameraRollExample.js

@@ -19,6 +19,7 @@ const {
   Text,
   View,
   TouchableOpacity,
+  Dimensions
 } = ReactNative;
 import CameraRoll from '../../js/CameraRoll';
 import type {PhotoIdentifier, GroupTypes} from '../../js/CameraRoll';
@@ -57,6 +58,7 @@ export default class CameraRollExample extends React.Component<Props, State> {
   render() {
     return (
       <View>
+        <View style={styles.header}>
           <Switch
             onValueChange={this._onSwitchChange}
             value={this.state.bigImages}
@@ -67,6 +69,7 @@ export default class CameraRollExample extends React.Component<Props, State> {
             onValueChange={this._onSliderChange}
           />
           <Text>{'Group Type: ' + this.state.groupTypes}</Text>
+        </View>
         <CameraRollView
           ref={ref => {
             this._cameraRollView = ref;
@@ -131,6 +134,11 @@ export default class CameraRollExample extends React.Component<Props, State> {
 }
 
 const styles = StyleSheet.create({
+  header: {
+    marginTop: 44,
+    padding: 20,
+    width: Dimensions.get('window').width
+  },
   row: {
     flexDirection: 'row',
     flex: 1,