export const ButtonLayout = () => {
return (
    <View style={styles.row}>

         <TouchableOpacity >
             <Text>Book Now</Text>
         </TouchableOpacity>

         <TouchableOpacity >
             <Text>Schedule</Text>
         </TouchableOpacity>

    </View>

)
}

<View style={styles.container}>
            <MapView
                provider={MapView.PROVIDER_GOOGLE}
                style={styles.map}
                region={this.props.region}
            >
                <MapView.Marker
                    coordinate={this.props.region}
                    pinColor='green'
                />
            </MapView>
            <ButtonLayout style={{ marginBottom: 5 }} />
        </View>

    );