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
Related
I am unsure how to trigger an event in my TouchableOpacity component that will target the TextInput component. I'd just like to be able to allow the user to type in a multiline area and click a button when they are finished, so that they are able to save their text (similar to how the iOS Notes app functions).
<View>
<View>
<Text>Notes</Text>
{typing &&
<TouchableOpacity
onPress={() => {
//blur() the textinput here
}}
>
<Text>Done</Text>
</TouchableOpacity>
}
</View>
<View>
<TextInput
multiline={true}
textAlignVertical='top'
value={text}
onChangeText={(text) => {
}}
onFocus={setTyping(true)}
/>
</View>
</View>
If you only need to access the text inside the same file, store your text in state in your component.
const [text, setText] = useState('');
...
<TouchableOpacity
// not sure what you want to do with the text here, but it'll be available in the `text` variable
onPress={() => saveNote(text)}
...
<TextInput
onChangeText={newText => setText(newText)
// or more simply
onChangeText={setText}
...
/>
The text input will automatically blur when you touch the Touchable.
If you need the text available in other files, have a look into React Context or look up state management libraries for React Native.
The question is simple, <TextInput /> inside <Animated.View /> is being trigered on every onChangeText event. I want it to exit the animation only if Submit button is pressed. Code is below:
const InputBox = () => { return(
<Animated.View style={styles.inputContainer}
entering={SlideInRight}
exiting={
SlideOutRight
}
>
<TextInput
style={styles.textInput}
onChangeText = {(text) => setTypedText(text)}
/>
<Pressable
onPress={onSubmit}>
<Text>Submit</Text>
</Pressable>
</Animated.View>
)
Any ideas?
Edit: I realized that, when I directly use this <Animated.View/> inside render seems not any problem, but when I create the component dynamically with const InputBox=()=>{} the problem occurs. So the question is why? And how can I use this component which is created by using const InputBox=()=>....
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 developing an app on react native. I want to call a date picker when i press on a Text-Input and after selecting a date it should show on the Text-Input
Wrap TextInput into a view and set pointerEvents as none.
Now you can use Pressable component from react-native to listen to the onpress event.
<Pressable onPress={() => alert('Hi!')}>
<View pointerEvents="none">
<TextInput />
</View>
</Pressable>
You cannot explicitly call onPress for TextInput. You could only use. onFocus which will be called when you press the input box to get cursor over there. No need to focus on onBlur as your use case doesn't required.. Handle close within onFocus if possible.
onFocus = () => {
// do something
}
render() {
<TextInput onFocus={onFocus} />
}
What you have to do is use onFocus and onBlur of TextInput.
<TextInput
onFocus={this.onFocus}
onBlur={this.onBlur}
/>
onFocus = () => {
// Open date picker
}
onBlur = () => {
// Close date picker and add value to textinput
}
You can make text input field read only by providing
editable={false}
pointerEvents="none"
prop to TextInput.
Wrap TextInput inside View and set pointerEvents="none", wrap that view with TouchableOpacity or any other Touchable Component. Please see below example!
<TouchableOpacity
onPress={() => {
alert('hello');
}}>
<View pointerEvents="none">
<TextInput
onChange={() => {}}
value={''}
placeholder={waterMark}
editable={!isDisabled}
selectTextOnFocus={!isDisabled}
/>
</View>
</TouchableOpacity>
I want to retrieve user input inside a functional component (I am using a redux architecture). However when I console.log() a referenced item, I get a constructor, not the actual object.
How can I get the user input without manipulating state?
<Modal visible={visibleModal === 'addRoom'} onRequestClose={() => null}>
<TextInput ref={el => {roomName = el}} style={styles.input} />
<Button onPress={() => store.dispatch(hideModal())}>Cancel</Button>
<Button onPress={() => {
store.dispatch(addRoom({name: roomName.value}))
return store.dispatch(hideModal())
}}>OK</Button>
</Modal>
You cannot get the value of a TextInput by ref with React Native. The only way to get the text from an input is to subscribe to change events.
Try .value when you access your TextInput through ref