onInputTextChanged behavior

Issue Description

I want to cache my textMessage in a Redux store, so I included the text prop in Gifted chat with the value of the textMessage prop in the store, with onInputTextChanged prop on the Gifted Chat, but it clears when it is initially rendered.

Same as Issue #603

[Vi-dot]

A quick hack

import { GiftedChat } from 'react-native-gifted-chat';

GiftedChat.prototype.notifyInputTextReset = () => {};

or better, if you want to keep notifyInputTextReset() working in resetInputToolbar()

GiftedChat.prototype.notifyInputTextReset = function () {
    if (this.props.onInputTextChanged && this.state.isInitialized === true) {
        this.props.onInputTextChanged('')
    }
};

[alikazemkhanloo]

Wouldn’t a new prop be nicer? something like clearTextOnInitialLayout.