Here's my code and screenshots
import React, { Component } from 'react';
import {View, Image} from 'react-native';
import { Label,Item, Input } from 'native-base';
export default class Splash extends Component {
constructor(props){
super(props);
}
render() {
return (
<View
style={{
flex:1,
justifyContent: 'center',
paddingHorizontal: 20,
alignItems:'center',
backgroundColor:'grey'
}}>
<Item>
<Label style={{color:'black'}}>Email</Label>
<Input/>
<Image
source={require('../images/email1.png')}
style={{
width:70,
height:35,
resizeMode:'contain'
}}/>
</Item>
</View>
)
}
}

But when I add floating label the image goes away
import React, { Component } from 'react';
import {View, Image} from 'react-native';
import { Label,Item, Input } from 'native-base';
export default class Splash extends Component {
constructor(props){
super(props);
}
render() {
return (
<View
style={{
flex:1,
justifyContent: 'center',
paddingHorizontal: 20,
alignItems:'center',
backgroundColor:'grey'
}}>
<Item floatingLabel>
<Label style={{color:'black'}}>Email</Label>
<Input/>
<Image
source={require('../images/email1.png')}
style={{
width:70,
height:35,
resizeMode:'contain'
}}/>
</Item>
</View>
)
}
}

Added Thumbnail support for floatingLabel, commit https://github.com/GeekyAnts/NativeBase/commit/2e4d41483dd15e3f3e871b2c1a995c8d3a466fcb
Also available on master
Quick demo

Most helpful comment
Added Thumbnail support for floatingLabel, commit https://github.com/GeekyAnts/NativeBase/commit/2e4d41483dd15e3f3e871b2c1a995c8d3a466fcb
Also available on
masterQuick demo