how can i make image editor in react native?

Question

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?

Answer 1

You could use a package like https://github.com/gre/react-native-view-shot that would allow you to wrap your image + overlays :

<ViewShot ref="viewShot" options={{ format: "png", quality: 1 }}> <ScrollView ref="resultImage" style={styles.scrollView}> <Image style={styles.image} source={require('../../resources/images/1422374259704.jpeg')} /> {circles} </ScrollView> </ViewShot>

and then capture it :

this.refs.viewShot.capture()