Question

我在IOS中发现了这种奇怪的行为（在模拟器和真实设备上都可以，但是我只有模拟器的屏幕截图），在输入到TextInput组件时，它在输入的文本后面放置了一个怪异的突出显示。我已参考以下问题（自关闭以来）：https://github.com/facebook/react-native/issues/7070

我已经搜索了文档（https://facebook.github.io/react-native/docs/textinput）来找到答案，但是似乎还没有得出任何答案。我以为我与selectTextOnFocus道具很接近，但是我将其设置为false并且没有任何改变（行为仍然存在）。

我也尝试将textDecorationColor和textShadowColor设置为透明，无济于事。我真的不知所措。

这是我输入的代码：

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

export class GeneralInput extends React.Component {

    constructor(props) {
        super(props);
        this.state = {
            placeholder: this.props.placeholder,
            inputValue: "",
            inputting: false,
        };
     }
    whenInputIsFocused() {
        this.setState({placeholder: ""});
    }
    whenInputIsBlurred() {
        if (this.state.inputValue === "") {
            this.setState({placeholder: this.props.placeholder});
        }
    }
    focusNextField(nextField) { this.refs[nextField].focus(); }

  render() {
    const autoFocus = this.props.autoFocus == 'true';
    const multiline = this.props.multiline == 'true';
    return(
        <View style={styles.outerContainer}>
            <Text style={styles.labelText}>{this.props.labelText}</Text>
            <TextInput 
                autoCapitalize='none' 
                autoFocus={autoFocus}
                onChangeText={(inputValue) => this.setState({inputValue})}
                value={this.state.inputValue} 
                secureTextEntry={this.props.secureTextEntry} 
                onBlur={this.whenInputIsBlurred.bind(this)} 
                onFocus={this.whenInputIsFocused.bind(this)} 
                underlineColorAndroid="transparent" 
                keyboardType={this.props.type} 
                returnKeyType={this.props.returnKeyType} 
                placeholder={this.state.placeholder} 
                placeholderTextColor='rgba(255, 255, 255, 0.3)'
                multiline={multiline}
                selectTextOnFocus={false}
                onSubmitEditing={() => {this.focusNextField(this.props.ref)}}
                blurOnSubmit={(this.props.moveAlongType === 'next') ? false : true}
                style={styles.inputStyles} />
        </View>
    );
  }
}

const styles = StyleSheet.create({
    outerContainer: {
        justifyContent: 'center',
        alignItems: 'flex-start',
        width: '90%',
        marginBottom: 20,
    },
    labelText: {
        fontFamily: 'rubik-bold',
        fontSize: 14,
        fontWeight: 'bold',
        color: '#fff',
        marginBottom: 5,
    },
    inputStyles: {
        height: 40,
        borderRadius: 2,
        backgroundColor: 'rgba(255, 255, 255, 0.3);',
        shadowColor: 'rgba(0, 0, 0, 0.15)',
        shadowOffset: {width: 0,height: 2},
        shadowOpacity: 0,
        shadowRadius: 0,
        width: '100%',
        textDecorationColor: 'transparent',
        fontSize: 14,
        color: '#fff',
        paddingLeft: 15,
        fontFamily: 'rubik-bold',
    },
});

以下是实际发生的屏幕快照（第一个屏幕快照带有突出显示，第二个屏幕快照只是带有占位符文本的输入内容供参考）：

所以问题是... 我如何在ios上使该奇怪的突出显示消失？

Answer 1

Text未被选中，只是您在样式中提供的背景颜色。

只需从<TextInput />的样式中删除背景色

Answer 2

因此，按照@Siraj的说法，发生这种奇怪行为的原因是因为我应用于<TextInput />组件的背景色也正应用于输入的文本。因此，我将<TextInput />包裹在<View />中，应用了height，width，backgroundColor，shadow和borderRadius支撑周围的<View />，并具有预期的效果！请参见下面的代码：

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

export class GeneralInput extends React.Component {

    constructor(props) {
        super(props);
        this.state = {
            placeholder: this.props.placeholder,
            inputValue: "",
            inputting: false,
        };
     }
    whenInputIsFocused() {
        this.setState({placeholder: ""});
    }
    whenInputIsBlurred() {
        if (this.state.inputValue === "") {
            this.setState({placeholder: this.props.placeholder});
        }
    }
    focusNextField(nextField) { this.refs[nextField].focus(); }

  render() {
    const autoFocus = this.props.autoFocus == 'true';
    const multiline = this.props.multiline == 'true';
    return(
        <View style={styles.outerContainer}>
            <Text style={styles.labelText}>{this.props.labelText}</Text>
            <View style={styles.inputContainer}> // added View
                <TextInput 
                    autoCapitalize='none' 
                    autoFocus={autoFocus}
                    onChangeText={(inputValue) => this.setState({inputValue})}
                    value={this.state.inputValue} 
                    secureTextEntry={this.props.secureTextEntry} 
                    onBlur={this.whenInputIsBlurred.bind(this)} 
                    onFocus={this.whenInputIsFocused.bind(this)} 
                    underlineColorAndroid="transparent" 
                    keyboardType={this.props.type} 
                    returnKeyType={this.props.returnKeyType} 
                    placeholder={this.state.placeholder} 
                    placeholderTextColor='rgba(255, 255, 255, 0.3)'
                    multiline={multiline}
                    selectTextOnFocus={false}
                    onSubmitEditing={() => {this.focusNextField(this.props.ref)}}
                    blurOnSubmit={(this.props.moveAlongType === 'next') ? false : true}
                    style={styles.inputStyles} />
                </View> // Closing the added View
        </View>
    );
  }
}

const styles = StyleSheet.create({
    outerContainer: {
        justifyContent: 'center',
        alignItems: 'flex-start',
        width: '90%',
        marginBottom: 20,
    },
    labelText: {
        fontFamily: 'rubik-bold',
        fontSize: 14,
        fontWeight: 'bold',
        color: '#fff',
        marginBottom: 5,
    },
    inputContainer: { // added styles
        height: 40,
        width: '100%',
        backgroundColor: 'rgba(255, 255, 255, 0.3);',
        shadowColor: 'rgba(0, 0, 0, 0.15)',
        shadowOffset: {width: 0,height: 2},
        shadowOpacity: 0,
        shadowRadius: 0,
        borderRadius: 2,
    },
    inputStyles: {
        height: '100%',
        width: '100%',
        fontSize: 14,
        color: '#fff',
        paddingLeft: 15,
        fontFamily: 'rubik-bold',
    },
});

TextInput将自动“突出显示”置于文本后面

2 个答案: