title: React native / Trouble with AsyncStorage get item
body: <p>I am building an Android app and I am struggling using the AsyncStorage. I want to create a function that takes a key as input and give me back the item. My problem is that when I call this function, it returns { _40: 0, _65: 0, _55: null, _72: null } instead the value I am looking for.</p>
  
  <p>Here is my code : </p>
  
  <pre><code>renderList() {
  
      async function save() {
          await AsyncStorage.setItem('Title', 'hello');
      }
  
      async function fetch(key) {
          const value = await AsyncStorage.getItem(key);
          console.log(value) ; // Return hello
          return value
      }
  
      save() ;
      fetch() ;
  
      const reponse = fetch() ;
      console.log(reponse) ; // Return { _40: 0, _65: 0, _55: null, _72: null }
  
      return (
          &lt;Text style={styles.noteElementTitle}&gt; Aa &lt;/Text&gt;
      )
  }
  </code></pre>
  
  <p><strong>Edit :</strong> </p>
  
  <p>I tried this : </p>
  
  <pre><code>    async function getBody() {
      await save();
      const response = await fetch('Title');
      console.log(response);
      this.setstate({ title : response}) ;
      }
  
      getBody() ;
  </code></pre>
  
  <p>But I still get an error : TypeError: undefined is not a function (evaluating 'this.setstate({ title: response })')</p>