在React Native中,当输入框中的箭头被按下时显示自定义视图,可以通过以下步骤实现:
import React from 'react';
import { View, Text } from 'react-native';
const CustomView = () => {
return (
<View>
<Text>自定义视图</Text>
</View>
);
};
export default CustomView;
showCustomView
,并将其初始值设置为false。import React, { useState } from 'react';
import { TextInput, TouchableOpacity } from 'react-native';
import CustomView from './CustomView';
const ParentComponent = () => {
const [showCustomView, setShowCustomView] = useState(false);
const handleArrowPress = () => {
setShowCustomView(true);
};
return (
<>
<TextInput />
<TouchableOpacity onPress={handleArrowPress}>
{/* 箭头图标 */}
</TouchableOpacity>
{showCustomView && <CustomView />}
</>
);
};
export default ParentComponent;
showCustomView
状态变量为true,来显示自定义视图。你可以使用TouchableOpacity组件来包裹箭头图标,并在其onPress
属性中调用handleArrowPress
函数。showCustomView
状态变量的值来决定是否渲染自定义视图。当showCustomView
为true时,使用{showCustomView && <CustomView />}
的方式来渲染自定义视图。这样,当输入框中的箭头被按下时,自定义视图将会显示出来。
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