If you have to use a material ui styled components you may wanna use reactnativepaper

hi there you cna use this code to achive import React from 'react';

import {View, StyleSheet, Text} from 'react-native';

    import { TextInput } from 'react-native-paper';
    export default function InputBox(props) {
      return (
        <View style={styles.container}>
         <TextInput
         mode="outlined"
          label="Email"
          style={{width:'90%'}}
        />
        </View>
      );
    }
    
    const styles = StyleSheet.create({
      container: {
        justifyContent:'center',alignItems:'center',
     flex:1
        
        // borderColor: COLORS.WHITE,
      },
      input: {
        // fontFamily: FONT_FAMILY.primaryMedium,
        fontSize: 14,
        height: 37,
        // color: COLORS.WHITE,
      },
      label: {
        // fontFamily: FONT_FAMILY.primary,
        marginLeft: 5,
        // color: COLORS.WHITE,
        fontSize: 12,
        //  marginTop: -30,
      },
    });

you can test it on Snack

Also you can read more about props here react-native-paper

I was able to get this accomplished purely in React Native without any dependencies. The trick was to put the Text in a View with a background color the same as the screen's and position the Text absolutely. My example code hardcodes a lot of values, but if you want it to be responsive you'll need to come up with your own way of figuring those values out. The code:

import { View, Text, TextInput, StyleSheet } from "react-native";

const Input = () => {
    return (
        <View>
            <View style={styles.labelContainer}>
                <Text>Email Address</Text>
            </View>
            <View style={styles.inputContainer}>
                <TextInput placeholder="Enter email address" />
            </View>

        </View>
    );
}

const styles = StyleSheet.create({
    labelContainer: {
        backgroundColor: "white", // Same color as background
        alignSelf: "flex-start", // Have View be same width as Text inside
        paddingHorizontal: 3, // Amount of spacing between border and first/last letter
        marginStart: 10, // How far right do you want the label to start
        zIndex: 1, // Label must overlap border
        elevation: 1, // Needed for android
        shadowColor: "white", // Same as background color because elevation: 1 creates a shadow that we don't want
        position: "absolute", // Needed to be able to precisely overlap label with border
        top: -12, // Vertical position of label. Eyeball it to see where label intersects border.
    },
    inputContainer: {
        borderWidth: 1, // Create border
        borderRadius: 8, // Not needed. Just make it look nicer.
        padding: 8, // Also used to make it look nicer
        zIndex: 0, // Ensure border has z-index of 0
    },
});

export default Input;

This is what it looks like on my device (Samsung Galaxy S10+):