title: how can i make image editor in react native?
body: <p>i'm making a image editor application using react native.</p>
  
  <p>just adding function of and a shape like circle or square.</p>
  
  <pre><code>_handleAddCircle() {
      let circle = {
          left: 20,
          top: 84
      };
      let circles = this.state.circles;
      circles.push(circle);
      this.setState({
          circles: circles
      });
  },
  
  render: function() {
      let circles = this.state.circles.map((circle, key) =&gt; {
          return (
              &lt;Circle key={key} left={circle.left} top={circle.top} updatePosition={this.updatePosition} /&gt;
          );
      });
      return (
          &lt;View style={styles.container}&gt;
              &lt;TouchableHighlight
                  style={styles.button}
                  onPress={this._handleAddCircle}
                  underlayColor="#88D4F5"&gt;
                  &lt;Text style={styles.buttonText}&gt;add&lt;/Text&gt;
              &lt;/TouchableHighlight&gt;
              &lt;ScrollView ref="resultImage" style={styles.scrollView}&gt;
                  &lt;Image
                      style={styles.image}
                      source={require('../../resources/images/1422374259704.jpeg')} /&gt;
                  {circles}
              &lt;/ScrollView&gt;
              &lt;TouchableHighlight
                  style={styles.button}
                  onPress={this._handleSave}
                  underlayColor="#88D4F5"&gt;
                  &lt;Text style={styles.buttonText}&gt;save&lt;/Text&gt;
              &lt;/TouchableHighlight&gt;
        &lt;/View&gt;
      );
  }
  </code></pre>
  
  <p>but i cannot find saving image after working.</p>
  
  <p>i guess hard to make image editor without native language.</p>
  
  <p>what package or plugin do i need for it?</p>