title: Missing accessibility label: in Android Studio Warning
body: <blockquote>
    <p>Missing accessibility label:  where <code>minSdk &lt; 17</code>,  you should provide
    an <code>android:hint</code> Editable text fields should provide an <code>android:hint</code>
    or, provided your minSdkVersion is at least 17, they may be referenced
    by a view with a <code>android:labelFor</code> attribute.  When using
    <code>android:labelFor</code>, be sure to provide an <code>android:text</code> or an 
    <code>android:contentDescription</code>.  If your view is labeled but by a label in
    a different layout which includes this one, just suppress this warning
    from lint.</p>
    
    <p>Issue id: LabelFor</p>
  </blockquote>
  
  <p>How can fix this warning?</p>