title: React native Picker not working
body: <p>I want to add my items inside array to picker, but after I added the values App crash. What I'm doing wrong in here?</p>
  
  <pre><code>&lt;Picker selectedValue={this.state.select}
          onValueChange={(lang) =&gt; this.setState({select: loc})}&gt;
          &lt;Picker.Item label={this.state.caseTypeList} value="this.state.caseTypeList[0]" /&gt;
  &lt;/Picker&gt;
  </code></pre>