app render func

App.js

render() {
  const { userId, isReady } = this.state;
  if(!isReady){
    return this.renderUsernameView();
  }
  return (
    <GiftedChat
      messages={this.state.messages}
      onSend={this.onSend}
      onPressAvatar={ (user)=> alert(user.name)}
      user={{
        _id: userId,
      }}
    />
  );
}