Unfocus a TextInput in React Native

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I'm building an Android app with React Native.

How can you force a TextInput to "unFocus", meaning the cursor is blinking inside the text field. There are functions for isFocused() and onFocus(), but how do I actually get the text field to give up focus. You would think it does so automatically once I hit enter, but that's not the case.

   import React, {Component} from 'react';
   import { AppRegistry, Text, View, StyleSheet, TextInput, TouchableOpacity} 
   from 'react-native';

   var SHA256 = require("crypto-js/sha256");

   export default class LoginForm extends Component{


constructor(props){
    super(props);
    this.state = {
        email: '',
        password:''
    };
}

tryLogin = () => {
    if(this.state.email=="email123" && this.state.password == "password"){
        console.log("password verified");
        this.props.navigator.replace({
            title: 'Dashboard'
        });
    }

    console.log(this.state.email);
    console.log(this.state.password);
    console.log("Hash" + SHA256(this.state.password));
}

render(){
    return(
        <View style={styles.container}>
            <TextInput 
                style={styles.input}

                placeholder="Email address" 
                placeholderTextColor="white"
                onChangeText={(email) => this.setState({email})}>
            </TextInput>
            <TextInput style={styles.input} 
                placeholder="Password" 
                placeholderTextColor="white" 
                secureTextEntry
                onChangeText={(password) => this.setState({password})}>
            </TextInput>

            <TouchableOpacity style={styles.loginButtonContainer} onPress={this.tryLogin}>
                <Text style={styles.loginButtonText}>LOGIN</Text>
            </TouchableOpacity>
        </View>
  );
}
}

AppRegistry.registerComponent('LoginForm', () => LoginForm);

const styles =  StyleSheet.create({
container: {
    padding: 20
},
input:{
    height: 40,
    backgroundColor: '#e74c3c',
    marginBottom: 20,
    color: 'white',
    paddingHorizontal: 15,
    opacity: .9
},
loginButtonContainer:{
    justifyContent: 'center',
    backgroundColor: '#bc4c3c',
    paddingVertical:15

},
loginButtonText:{
    textAlign:'center',
    color:'white',
    fontWeight: '700',
    fontSize: 24

}

   })

This probably won't matter as much for real users but I'm just emulating and its pesky if I want to reload.

A better way is to use ScrollView and Keyboard.dismiss. By using ScrollView when the user taps outside of textInput, keyboard dismissed. It's done because ScrollView default property for keyboardShouldPersistTaps is never. It's the behavior the user expects. For dismiss the keyboard, or it's equivalent blur the textInput, when the user tap on the login button add Keyboard.dismissed() to the tryLogin function.

import React, {Component} from 'react';
import { AppRegistry, Text, View, StyleSheet, TextInput, TouchableOpacity, ScrollView, Keyboard}
  from 'react-native';
var SHA256 = require("crypto-js/sha256");

export default class LoginForm extends Component{


  constructor(props){
    super(props);
    this.state = {
      email: '',
      password:''
    };
  }

  tryLogin = () => {
    Keyboard.dismiss();
    if(this.state.email=="email123" && this.state.password == "password"){
      console.log("password verified");
      this.props.navigator.replace({
        title: 'Dashboard'
      });
    }

    console.log(this.state.email);
    console.log(this.state.password);
    console.log("Hash" + SHA256(this.state.password));
  }

  render(){
    return(
      <ScrollView style={styles.container}>
        <TextInput
          style={styles.input}

          placeholder="Email address"
          placeholderTextColor="white"
          onChangeText={(email) => this.setState({email})}>
        </TextInput>
        <TextInput style={styles.input}
                   placeholder="Password"
                   placeholderTextColor="white"
                   secureTextEntry
                   onChangeText={(password) => this.setState({password})}>
        </TextInput>

        <TouchableOpacity style={styles.loginButtonContainer} onPress={this.tryLogin}>
          <Text style={styles.loginButtonText}>LOGIN</Text>
        </TouchableOpacity>
      </ScrollView>
    );
  }
}

AppRegistry.registerComponent('LoginForm', () => LoginForm);

const styles =  StyleSheet.create({
  container: {
    padding: 20
  },
  input:{
    height: 40,
    backgroundColor: '#e74c3c',
    marginBottom: 20,
    color: 'white',
    paddingHorizontal: 15,
    opacity: .9
  },
  loginButtonContainer:{
    justifyContent: 'center',
    backgroundColor: '#bc4c3c',
    paddingVertical:15

  },
  loginButtonText:{
    textAlign:'center',
    color:'white',
    fontWeight: '700',
    fontSize: 24

  }

})

React Native — hide keyboard when you unfocus on input, React Native — hide keyboard when you unfocus on input. In the react native app, there is a TextInput. I need to add the feature so that� React Native — hide keyboard when you unfocus on input. In the react native app, there is a TextInput. I need to add the feature so that keyboard should be able to hide when you click outside of….

You can use Keyboard API.

import { Keyboard, TextInput } from 'react-native';

<TextInput
  onSubmitEditing={Keyboard.dismiss}
/>

Please see the full example in react native offical document.

TextInput � React Native, blur() that will focus or blur the TextInput programmatically. Note that some props are only available with multiline={true/false} . Additionally, border styles that apply� Nader Dabit´s pointed me to do something similar -- using the state for styles -- but I think it can be done in a cleaner way if you created separate styles for the focused and unfocused style and pass only the style ID as follows:

I managed to solve this with this.ref reference. First, you assign to the TextInput a ref, like this:

<input ref="myInput" />

Then, you call the blur() method to this.refs.myInput from a function

 blurTextInput(){
    this.refs.myInput.blur()
 }

Keyboard.dismiss and TextInput.blur not working if used with FlatList , Xcode 9.4.1 Build version 9F2000 Android Studio: 2.3 AI-162.4069837 Packages: (wanted => installed) react: 16.3.1 => 16.3.1 react-native React Native Textinput Focus Is Not A Function, . .

Found it actually.It doesn't look as pretty and my intuition says this isn't a very "react" solution but if you want it here it is.

<TextInput 
 style={styles.input} 
 ref="email_input"
 onSubmitEditing={() => this.refs['email_input'].blur()} 
 placeholder="Email address" 
 placeholderTextColor="white"
 onChangeText={(email) => this.setState({email})}/>

Add blur() and focus() functions that pass through to the native , Could you please add blur() and focus(). Code snippet Add blur() and focus() functions that pass through to the native TextInput #2297. Closed Every component is mentioned its replacing React Native component image. Introduction to React Native TextInput. React Native Pass TextInput Entered Value From One Activity Screen to Another admin July 28, 2018 July 28, 2018 React Native Transforming data between activities is one of the most useful task in react native applications because using them we can communicate between activities by passing values to one

Noah's answer above works well, but using string refs is now discouraged in React, and is likely going to be deprecated soon. Instead, you should use a callback function that gets called when the component you want to reference renders.

<TextInput 
  ref={(c: any) => {
    this.textInputRef = c;
  }}
  onSubmitEditing={() => this.textInputRef.blur()} 
/>

If you're using Flow, you can then specify the type of your ref by placing something like this outside of your render function:

textInputRef: ?TextInput;

blur <TextInput/> by tapping outside of it, doesn't work in react native, I have , and I would like to get to blur it and toggle the keyboard when tapping outside the I have tried this solution but without any luck. import� React Native TextInput is a basic component that allows the user to enter text, number, password, etc. Using React. The default value of autoFocus is false. In react-native onChangeTextevent in TextInput will be fired only when there is an actual change in text, which means that it won't be.

can anyone explain what .blur() does to a textinput component , Thanks, I didn't realize this was a standard term in web applications too. View entire discussion ( 3 comments). More posts from the reactnative community. we handled this style of screen with a different approach. Rather than manage 4 individual TextInputs and handle the navigation of focus across each one (and then back again when the user deletes a character), we have a single TextInput on screen but is invisible (ie. 0px x 0px) wide which has the focus, maxLength and keyboard configuration, etc.

Unfocus a TextInput in React Native, I'm building an Android app with React Native. How can you force a TextInput to " unFocus", meaning the cursor is blinking inside the text field. There are� TextInput is a controlled component, which means the native value will be forced to match this value prop if provided. For most uses, this works great, but in some cases this may cause flickering - one common cause is preventing edits by keeping value the same.

react-native.TextInput.blur JavaScript and Node.js code examples , react native-numeric input react native textinput number only. I tap on textinput and the keyboard slide from the bottom, how do I slides it back down or keep/blur � I&#8217;m building an Android app with React Native. How can you force a TextInput to &#8220;unFocus&#8221;, meaning the cursor is blinking inside the text field. There are functions for isFocused() and onFocus(), but how do I actually get the text field to give up focus. You would think it does so automatically once I hit enter, but that&#8217;s not the [&hellip;]

Comments
  • Just using a hash function is not sufficient and just adding a salt does little to improve the security. Instead iIterate over an HMAC with a random salt for about a 100ms duration and save the salt with the hash. Use a function such as PBKDF2, Rfc2898DeriveBytes, password_hash, Bcrypt or similar functions. The point is to make the attacker spend a lot of time finding passwords by brute force.
  • Possible duplicate of Hide keyboard in react-native
  • It helped me a lot! thanks.
  • Glad to hear that :)