title: how react-native render mutable views?
body: <pre><code>_render() {
      return (
          &lt;Group&gt;
              &lt;Shape d={"M160 160 A 45 45, 0, 0, 1, 115 205"} stroke="#000000" strokeWidth={3} /&gt;
              &lt;Shape d={"M160 160 A 45 45, 0, 0, 1, 115 205"} stroke="#000000" strokeWidth={3} /&gt;
          &lt;/Group&gt;
      );
  }
  </code></pre>
  
  <p>here，I want to make shape mark is mutable.
  like this </p>
  
  <pre><code>let shapes = [&lt;Shape d={"M160 160 A 45 45, 0, 0, 1, 115 205"} stroke="#000000" strokeWidth={3} /&gt;,
              &lt;Shape d={"M160 160 A 45 45, 0, 0, 1, 115 205"} stroke="#000000" strokeWidth={3} /&gt;]
  
  function _render() {
      return (
          &lt;Group&gt;
              {shapes}
          &lt;/Group&gt;
      );
  }
  </code></pre>
  
  <p>sometimes i want change shapes and render again.
  what can i do?</p>