How to use react native text input?

How to use react native text input?

Handling text input in React Native can be a tricky task, especially for beginners. However, with a little bit of knowledge and practice, it becomes a breeze. In this blog, we will cover everything from basic to advanced techniques for handling text input in React Native.

First, let's start with the basics. In React Native, the most commonly used component for handling text input is the TextInput component. This component allows the user to enter and edit text. It has a wide range of props that can be used to customize its behavior and appearance. Some of the most commonly used props include:

• value: The current value of the text input.
• onChangeText: A function that is called when the text input's value changes.
• placeholder: The text to be displayed when the input is empty.
• secureTextEntry: A boolean value that determines whether the text input should hide the entered text (e.g. for passwords).

Here's an example of a basic text input component:

import React, { useState } from 'react'; 
import { TextInput } from 'react-native'; 
const MyTextInput = () => { 
const [value, setValue] = useState(''); 
return ( 
        <TextInput value={value} 
         onChangeText={text => setValue(text)} 
         placeholder="Enter your name" /> 
     ) 
}
export default MyTextInput;

Now, let's move on to some advanced techniques. One of the most powerful features of the TextInput component is the ability to handle input validation. This can be done by using the onChangeText prop to check the input's value and update the component's state accordingly. For example, you can check if the input's value is a valid email address or phone number.

Another advanced technique is the use of the ref prop. This prop allows you to access the TextInput component's instance and call its methods directly. This can be useful for tasks such as clearing the input or focusing it. Here's an example:

import React, { useState, useRef } from 'react'; 
import { TextInput } from 'react-native'; 
const MyTextInput = () => { 
const [value, setValue] = useState(''); 
const inputRef = useRef(null); 
return ( 
<> 
<TextInput ref={inputRef} 
value={value}
onChangeText={text => setValue(text)} 
placeholder="Enter your name" />
 <button onPress={() => inputRef.current.clear()}>Clear</button>
 </> 
)
}
export default MyTextInput;

In this example, the Clear button will call the clear method of the TextInput component when pressed, which will clear its value.