title: I'm unable to store data in AsyncStorage. It just shows as [object Object]
body: <p>OK, so I've got some data/strings stored in a component's state. But when I try to store that data to AsyncStorage, I'm unable to store it and retrieve it across another screen. I tried to display the data in alert but the laert box displayed the message:
  Registered user details: [object Object]</p>
  
  <p>I've confirmed that the state object contains the correct data i.e. fullname, username and password are all strings. Could you please help or tell me what I'm doing wrong?</p>
  
  <pre><code>registerUser(){
      AsyncStorage.setItem('fullname', this.state.fullname);
      AsyncStorage.setItem('username', this.state.username);
      AsyncStorage.setItem('password', this.state.password);
     // alert("Full name: " + this.state.fullname);
     alert("Registered user details: " + AsyncStorage.getItem('fullname'));
  </code></pre>