how can i make image editor in react native?

i'm making a image editor application using react native.

just adding function of and a shape like circle or square.

_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) => {        return (<Circle key={key} left={circle.left} top={circle.top} updatePosition={this.updatePosition} />        );    });    return (<View style={styles.container}><TouchableHighlight                style={styles.button}                onPress={this._handleAddCircle}                underlayColor="#88D4F5"><Text style={styles.buttonText}>add</Text></TouchableHighlight><ScrollView ref="resultImage" style={styles.scrollView}><Image                    style={styles.image}                    source={require('../../resources/images/1422374259704.jpeg')} />                {circles}</ScrollView><TouchableHighlight                style={styles.button}                onPress={this._handleSave}                underlayColor="#88D4F5"><Text style={styles.buttonText}>save</Text></TouchableHighlight></View>    );}

but i cannot find saving image after working.

i guess hard to make image editor without native language.

what package or plugin do i need for it?