react-nativereact-native-textinput

How to make a React Native TextInput accept ONLY NUMBERS and make it accept numbers 1 to 10 ONLY?


How to make a React Native TextInput accept only numbers and make it accept numbers 1 to 10 only?

For example, say I input 11, the value should automatically change into the maximum allowed, that is, 10.

And when I input 0, the value should automatically change into the minimum allowed, that is, 1.

As of now the only thing I have done are:

<TextInput
style={styles.input}
placeholder="Maximum of 10 passengers only"
maxLength={2}
keyboardType={"numeric"}
/>

Solution

  • You can use this:

    ...
    const [value, setValue] = React.useState(0);
    ....
    
      React.useEffect(() => {
        if(value === "") {
          return;
        }
        if(+value > 10) {
          setValue(10)
        } else if (value < 1) {
          setValue(1);
        }
    
      },[value])
    
    
    <TextInput
          keyboardType='numeric' 
          maxLength={2}
          value={value.toString()} 
          onChangeText={(e) => {
          setValue(e)
        }} />