用户键入电话号码时,我希望该号码以电话号码格式显示,例如(123)456-7890
我不确定该怎么做,但这是我目前拥有的代码。
使用UseState:
const [PNumber,setPNumber] = useState();
在我的TextInput中:
<TextInput
style={Fonts.Inp}
keyboardType={'number-pad'}
placeholder="(604) 333-3333"
placeholderTextColor='gray'
maxLength={10}
onChangeText = {(Text)=> setPNumber(Text)}
/>
因此,当前显示为“ 1234567890”。 我希望显示为(123)456-7890
答案 0 :(得分:0)
尝试一下
_onChangeText = (text) => {
let formatedNo = this.formatMobileNumber(text);
this.setState({ phone: formatedNo });
};
formatMobileNumber=(text=> {
var cleaned = ("" + text).replace(/\D/g, "");
var match = cleaned.match(/^(1|)?(\d{3})(\d{3})(\d{4})$/);
if (match) {
var intlCode = match[1] ? "+1 " : "",
number = [intlCode, "(", match[2], ") ", match[3], "-", match[4]].join(
""
);
return number;
}
return text;
}
...
<TextInput
maxLength={maxLength}
keyboardType={keyboardType}
onChangeText={text => {
this._onChangeText(text);
}}
placeholder={placeholder}
placeholderTextColor={Constants.APP_TEXT_GRAY_COLOR}
value={value}
/>
...