I have a TextInput whose style changes according to a state.
<TextInput
autoCapitalize="characters"
defaultValue={this.props.name}
onChangeText={(text) => { this.handleChangeText(text); }}
onEndEditing={this.handleTextSubmit}
placeholder={this.props.dictionary.Identification__placeholder}
placeholderTextColor={color.WHITE}
ref={(component) => { this.textInput = component; }}
style={[
defaultStyles.input,
styles.input,
this.state.keyboardIsVisible && styles.inputSelected,
]}
underlineColorAndroid="rgba(0,0,0,0)"
/>
The problem is that when the style changes, it erases the current value in the TextInput. Is there a way to fix this behavior ?
What is handleTextChange doing? you should have a value property like value={this.state.inputText} and have handleTextChange update that value.
Related
Inside TextInput, I want to have a red asterisk after placeholder text which is grey in color.
<TextInput
keyboardType="numeric"
placeholder={t('Enter OTP')}
placeholderTextColor="#C4C4C4"
value={inputOTP}
onChangeText={text => setInputOTP(text)}
style={styles.textInput}
/>
I want a red asterisk next to P in EnterOTP.
Is absolute position the only way to do it?
There is no direct method to do this.What I did is add text with asterix in front of the TextInput and show hide conditionally when there is value in TextInput or not,
const [title, setTitle] = useState();
const {
control,
handleSubmit,
formState: {errors},
} = useForm({});
<View style={{flexDirection: 'row',}}>
<Controller
control={control}
rules={{
required: true,
}}
render={({field: {onChange, onBlur, value}}) => (
<TextInput
autoFocus
onChangeText={(val) => {
onChange(val);
setTitle(val);
}}
value={value}
onBlur={onBlur}
placeholder={'Type activity name here'} >
</TextInput>
)}
name="activityName"
/>
{title ? <Text></Text> : <Text style={{color: 'red',fontSize: 17,height: 13,}}>*</Text>}
</View>
The Controller here comes from react-hook-forms which is not related to this question.You can use TextInput without Controller also.
TextInput naturally does not support the behaviour you mentioned (Placeholder with multiple colors) but with a small trick you will be able to achieve what you want!
put a text with red asterisk
<Text style={{ color: 'red' }}>* * *</Text>
try to give it a position which will sit beside your OTP text in placeholder . in TextInput component we have onFocus props which will be triggered when you enter the text input and want to type in!
so here you can make the mentioned text conditional! when it is not focused and there is no character inside you will show the red asterisk text otherwise you won't show it.
I am getting the text of the TextInput using onChangeText event and state.
<View style={styles.inputContainerStyle}>
<TextInput
autoFoucs={true}
ref={inputRef}
style={styles.textInputStyle}
placeholder="type here ..."
placeholderTextColor='#838389'
multiline
underlineColorAndroid="transparent"
onChangeText={text => handleTextChange(text)}
value={selectedText}
/>
<TouchableOpacity style={styles.submitBtnWrapperStyle} onPress={() => handleMsgSend()}>
<Icon name={msgEditMode ? "check" : "paper-plane"} size={20} color="#ffffff" />
</TouchableOpacity>
</View>
...
// handle text change on textinput
const handleTextChange = text => {
channel && channel.typing();
setSelectedText(text);
}
But actually whenever text is changed, the render function also is called because of changing state value and it is making the whole screen more slow.
So I am looking for the alternative way to get the text not using onChangeText event.
Is there any native way to get the text using ref?
I hope kind help.
thanks...
Yes, you can access the value of text input using ref like this
this.inputRef._lastNativeText
I search it every day why it doesn't work properly.When I type anything onto TextInput's placeholder it starts with empty space.I want to start without space.I also tried trim() method.It wasn't helpful.How should I fix my error? Thanks in advance!
<TextInput value={this.state.key} onChangeText={(text) =>{this.setState({key:text.trim()}) ; console.warn('key: '+this.state.key)}}/>
Try this :
<TextInput
value={this.state.key}
keyboardType="default"
onChangeText={key => this.setState({ key })}
/>;
UPDATED ANSWER :
_replaceSpace(str) {
return str.replace(/\u0020/, '\u00a0')
}
<TextInput
style={{ textAlign: "right" }}
value={this._replaceSpace(this.state.text)}
onChangeText={text => this.setState({ text: text })}
/>;
This is the text input that I am using, I want the input field to be disabled after entering a value.I tried using editable props, but it did not help.
I am completely new to react native, please help with an example.
<View style={editProfileStyle.textinputView}>
<TextInput
style={editProfileStyle.textInput}
placeholder="Enter your Specialization"
value={this.state.subQualification}
onChangeText={subQualification => this.setState({ subQualification: subQualification })}
/>
</View>
As per the question, since the field should get disabled when it has some value:
<View style={editProfileStyle.textinputView}>
<TextInput
editable={this.state.subQualification.length === 0}
style={editProfileStyle.textInput}
placeholder="Enter your Specialization"
value={this.state.subQualification}
onChangeText={subQualification => this.setState({ subQualification: subQualification })}
/>
</View>
using check in your editable prop of
editable={this.state.subQualification.length === 0} will make field editable when nothing in present in the field
Try to add state and modify your textInput props like this:
state ={
textDisable: true
}
render() {
return (
<View style={editProfileStyle.textinputView}>
<TextInput
style={editProfileStyle.textInput}
placeholder="Enter your Specialization"
value={this.state.subQualification}
onChangeText={subQualification => this.setState({ subQualification: subQualification })}
editable={this.state.textDisable}
onEndEditing={() => this.setState({textDisable: false})}
/>
</View>
);
}
}
after onsubmit the input should be disable.
I have to change the font family for textInput's Placeholder text. If we add this secureTextEntry={true}, the mentioned font Family is set for placeholder text.
<TextInput style={styles.textboxfield} secureTextEntry={true} placeholder="Password" />
But if we remove this secureTextEntry={true}, we can't set font-family for placeholder
<TextInput style={styles.textboxfield} placeholder="Password" />
Style is : textboxfieldd: {
height: 39,
backgroundColor: '#ffffff',
marginBottom:0,
fontFamily:'Inconsolata-Regular',
},
How can I change the font family for placeholder text ?
The way I solved this was to conditionally style the fontFamily (or style) on the presence or absence of the value i.e.
<TextInput
style={{ fontFamily: value ? 'OpenSans-Regular' : 'OpenSans-Italic' }}
value={value}
onChangeText={onChange}
/>
This way the font family is italic for the placeholder (when value === '') and regular when text is shown.
Above is not tested as I was using styled components but concept should be the same. Also this only works if TextInput is rendered as a controlled component so you have access to value.
Try this :
<TextInput
secureTextEntry={(this.state.email.length <= 0 && this.state.emailStatus != 'onFocus') ? true : false}
style={styles.textboxfieldd}
placeholderStyle={styles.textboxfieldd}
onFocus={this.changeStatus.bind(this, 'emailStatus', 'onFocus', '')}
onChangeText={(email) => this.setState({ email })}
value={this.state.email}
placeholder={this.state.emailStatusPH}
placeholderTextColor="#D8D8D8" />
Exactly this line => secureTextEntry={(this.state.email.length<=0 && this.state.emailStatus!='onFocus') ?true:false} solves the problem .
Because if we give secureTextEntry={true} means fontfamily is set to placeholder text but field changed as password , so for that only we wrote like this . secureTextEntry={(this.state.email.length<=0 && this.state.emailStatus!='onFocus') ?true:false}
If that field length is 0 and not focused means it will set true secureTextEntry={true} so the placeholder text is set to mentioned fontfamily
Textinput can have a Text child.
So you can have
<TextInput>
<Text style = {value.length == 0? styles.hint : styles.input}>
{value.length == 0? hint : value}
</Text>
</TextInput>
You can handle this by length of your password like :
<TextInput
secureTextEntry={this.state.password.length === 0? false : true}
/>
If you want to change the font once, you can just set fontFamily: yourFontFamilyName
If you plan on using your font in many place I suggest you create a class that will use the same fontFamily everyTime :
You can do it this way : (example with Quicksand as font-family)
import React, {TextInput} from 'react-native';
import _ from 'lodash';
var OldTextInput = TextInput;
class NewTextInput extends OldTextInput {
defaultProps = {};
render() {
var props = _.clone(this.props);
if (_.isArray(this.props.style)){
props.style.push({fontFamily: 'Quicksand-Regular'});
} else if (props.style) {
props.style = [props.style, {fontFamily: 'Quicksand-Regular'}];
} else {
props.style = {fontFamily: 'Quicksand-Regular'};
}
this.props = props;
return super.render();
};
}
export default NewTextInput;
and then use TextInput by requiring it in every file (import TextInput from './TextInput')
You're likely experiencing this on Android with React Native <= 0.64. In which case here's a solution:
<TextInput ref={ref => ref && ref.setNativeProps({ style: { fontFamily: 'FONT_NAME' } })} />
For more information and alternatives that might work better for you look at this issue thread on Github
Add fontSize={20}
<TextInput style={styles.textboxfield} secureTextEntry={true} placeholder="Password" fontSize={20}
/>
its worked for me
fontWeight: 'normal',
good luck :)