TextInput右边有个按钮，点击按钮的时候，input是不是该自动失焦

import {createElement, Component, render} from 'rax';
import {Tabbar, View,TextInput,Button,Modal} from 'nuke';
import Module from '../lib/module';

class Index extends Module {
    state = {
        searchKey: ''
    }
    searchTrade(){
      console.log(this.state.searchKey);
    }
    render() {
        return (
            <View style={{flex: 1}}>
            <TextInput
                placeholder="买家昵称/订单号"
                maxLength="50"
                style={{width:'750rem',height:'50rem',borderLeft:'1rem',borderRight:'1rem',borderTop:'1rem',borderBottom:'1rem'}}
                value={this.state.searchKey}
                onBlur={(e) => {
                    console.log('onBlur=================================');
                    this.setState({
                        searchKey: e.value
                    });
                }}
            />
            <Button onPress={() => {
                this.searchTrade();
            }}>搜索</Button>
            </View>
        );
    }
}

render(<Index />);