react native怎么设置页面背景色

yarn add react-native-linear-gradient

import React from 'react';
import {Text, StyleSheet, View, Dimensions} from 'react-native';
import LinearGradinet from 'react-native-linear-gradient';

export default class Home extends React.Component {
  render() {
    return (
     <LinearGradient colors={['#FFD801', '#FF8040', '#F75D59']} style= {styles.linearGradient}>
      <Text style={{color:'#ffffff'}}>
    Sign in with Facebook
      </Text>
</LinearGradient>
    );
  }
}

const styles = StyleSheet.create({
  content: {
           justifyContent:'center',
          alignItems:'center',
          width:200,
          height:50,
          paddingLeft: 15,
          paddingRight: 15,
          borderRadius: 5
  },
});

colors
start/end
locations

<LinearGradient    start={{ x : 0.0, y : 0 }} end={{ x : 1, y : 0 }}    locations={[ 0.1, 0.7, 1 ]}    colors={[ 'yellow', 'green', '#ff0000' ]}    style={styles.linearGradient}>    <Text style={styles.buttonText}>
        Sign in with Facebook    </Text></LinearGradient>

<LinearGradient
    colors={['red', '#375BB1']}
    useAngle={true}// 开启旋转
    angle={90}// 旋转角度，0的时候为从下到上渐变，按照角度顺时针旋转
    angleCenter={{ x: 0.5, y: 0.5}}// 旋转中心
    style={{ height: 50, marginTop: 50 }}>    <View style={{ justifyContent: 'center', alignItems: 'center', height: 50 }}>
        <Text style={{ color: '#ffffff', fontSize: 28 }}>Test Screen</Text>
    </View></LinearGradient>