ReactNative之键盘Keyboard的弹出与消失示例

import React, { Component } from 'react'; import { Keyboard, TextInput } from 'react-native';  class Example extends Component {  componentWillMount () {   this.keyboardDidShowListener = Keyboard.addListener('keyboardDidShow', this._keyboardDidShow);   this.keyboardDidHideListener = Keyboard.addListener('keyboardDidHide', this._keyboardDidHide);  }   componentWillUnmount () {   this.keyboardDidShowListener.remove();   this.keyboardDidHideListener.remove();  }   _keyboardDidShow () {   alert('Keyboard Shown');  }   _keyboardDidHide () {   alert('Keyboard Hidden');  }   render() {   return (    <TextInput     onSubmitEditing={Keyboard.dismiss}    />   );  } } 

@param {string} nativeEvent The `nativeEvent` is the string that identifies the event you're listening for. This can be any of the following: - `keyboardWillShow` - `keyboardDidShow` - `keyboardWillHide` - `keyboardDidHide` - `keyboardWillChangeFrame` - `keyboardDidChangeFrame` 

/**  * Dismisses the active keyboard and removes focus.  */ dismiss () {  dismissKeyboard(); } 

const dismissKeyboard = require('dismissKeyboard'); dismissKeyboard();