title: How to pass row id to render row react native
body: <p>Thanks in advance.
  Now iam able pass value to render row method and my component get render. I need to style more with my list item such as alternate background color change. So how do i get the row id and pass it into render row helper class.</p>
  
  <pre><code> componentWillMount(){   
  
      const ds = new ListView.DataSource({
          rowHasChanged:(r1,r2) =&gt; r1!=r2            
      }) 
      this.dataSource = ds.cloneWithRows(['row 1', 'row 2','row 3', 'row 4'])        
  }
  
    renderRow(value){ 
      return &lt;EachItem item ={value}/&gt;
  }
  
  render(){
      return(
          &lt;View&gt;           
              &lt;ListView
                  dataSource = {this.dataSource}
                  renderRow  = {this.renderRow} /&gt;
          &lt;/View&gt;
      )
  }
  </code></pre>