CustomInput.js
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import React, {Component} from "react";
import {Image, StyleSheet, TextInput, TouchableOpacity, View} from "react-native";
import {width, zoomH, zoomW} from "../utils/getSize";
import PropTypes from 'prop-types';
export default class CustomInput extends Component {
// 传递参数属性定义
static PropTypes = {
onButtonClick: PropTypes.func.isRequired,
onTextEmpty: PropTypes.func.isRequired
};
// 构造
constructor(props) {
super(props);
// 初始状态
this.state = {
inputValue: ""
};
this.onChange = this._onChange.bind(this);
}
_isNull(str) {
let result = true;
if (str === "" || str === undefined) {
result = true;
}
if (str.length > 0) {
result = false;
}
return result;
}
render() {
let { inputValue } = this.state;
return (
<View style={styles.container}>
<TextInput
underlineColorAndroid="transparent"
numberOfLines={1}
clearButtonMode={"never"}
maxLength={50}
value={inputValue}
returnKeyType={"search"}
onChangeText={this.onChange}
onSubmitEditing={event => {
const { onSubmitEditing } = this.props;
onSubmitEditing(event);
}}
onFocus={() => {
const { onFocus } = this.props;
this.onFocus();
}}
{...this.props}
/>
{this._isNull(inputValue)
? this._getRightEmptyView()
: this._getRightButtonView()}
<Image
source={require("../img/searchB.png")}
style={styles.findImgStyle}
resizeMode="contain"
/>
</View>
);
}
_getRightButtonView() {
//右侧按钮图
//自定义 按钮图
let source = this.props.source
? this.props.source
: require("../img/input_clear.png");
return (
<TouchableOpacity
activeOpacity={0.5}
style={styles.closeOpacityStyle}
onPress={() => {
this.props.onButtonClick();
}}
>
<Image style={styles.closeStyle} source={source} resizeMode="contain" />
</TouchableOpacity>
);
}
_getRightEmptyView() {
return (
<TouchableOpacity activeOpacity={0.5} style={styles.closeOpacityStyle} />
);
}
//清除输入款中的值
clearInputValue() {
this.setState({ inputValue: "" });
}
//获取输入款中的值
getInputValue() {
return this.state.inputValue;
}
_onChange(changeText) {
this.setState({
inputValue: changeText
});
if (changeText == "") {
this.props.onTextEmpty();
}
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
flexDirection: "row",
alignItems: "center"
},
closeStyle: {
height: 18 / zoomW,
width: 18 / zoomW
},
closeOpacityStyle: {
justifyContent: "center",
backgroundColor: "#00000000",
position:'absolute',
right:0,
height: width * 0.1,
width: 24,
borderTopRightRadius: 8,
borderBottomRightRadius: 8
},
findImgStyle: {
width: 15,
height: 15,
position: "absolute",
// top: 18,
left: 27
}
});