CODEWITHSUNDEEP
layoutflexboxreact-nativevictory-charts
Rathma
Rathma

Reputation: 1313

React native flex layout with VictoryChart, Chart fit the parent container

I have the following render function:

render() {
    return (
        <View style={styles.container}>
            <View style={styles.header}>
                <Text> Header
                </Text>
            </View>
            <View style={styles.services}>
                <Text>Services</Text>
            </View>
            <View style={styles.chart}>

                <VictoryChart>
                    <VictoryLine
                        style={{
                            data: {stroke: "#c43a31"},
                            parent: {border: "1px solid #ccc"}
                        }}
                        data={[
                            {x: 1, y: 2},
                            {x: 2, y: 3},
                            {x: 3, y: 5},
                            {x: 4, y: 4},
                            {x: 5, y: 7}
                        ]}
                    />
                </VictoryChart>    
            </View>
        </View>
    );
}

I have some sort of chart in the bottom section of page, But I cannot force the chart to fill the its parent, It kind of overflows from its dedicated section, How can I achieve this?(I tried to use flexWrap but it is no help !)

Here is the preview of what it looks like now: enter image description here

And here is my style sheet for this simple design:

const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: '#F5FCFF',
    },
    header: {
        flex: 1,
        backgroundColor: '#e7fe52'
    },

    services: {
        flex: 4,
        backgroundColor: '#20fe23'
    },

    chart: {
        flex: 2,
        flexWrap: 'wrap',
        backgroundColor: '#4fccb0'
    }
});

Upvotes: 2

Views: 4599

Answers (2)

needsleep
needsleep

Reputation: 2715

VictoryChart seems to have a default height of 300 and it doesn't adapt to its parent height. So, one way to solve this would be to remove the flex: 2 attribute from the chart style and add manually calculated dimensions. Something like this:

const chartHeight = Dimensions.get("window").height * 0.3;
const chartWidth = Dimensions.get("window").width;

<VictoryChart height={chartHeight} width={chartWidth} >
    <VictoryLine
        style={{
            data: {stroke: "#c43a31"},
            parent: {border: "1px solid #ccc"}
        }}
        data={[
            {x: 1, y: 2},
            {x: 2, y: 3},
            {x: 3, y: 5},
            {x: 4, y: 4},
            {x: 5, y: 7}
        ]}
    />
</VictoryChart>

// styles  
const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: '#F5FCFF',
    },
    header: {
        flex: 1,
        backgroundColor: '#e7fe52'
    },
    services: {
        flex: 4,
        backgroundColor: '#20fe23'
    },
    chart: {
        //remove flex from here
        backgroundColor: '#4fccb0'
    }
});

Although this is not perfect it works, but I would set a minimum height for the chart. I mean if the available space is too small, it won't look nice. In this case you could wrap your screen inside a ScrollView.

Upvotes: 8

Roozbeh Mohammadzadeh
Roozbeh Mohammadzadeh

Reputation: 689

each flex container is one flex try to divide your component into 1 

const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: '#F5FCFF',
    },
    header: {
        flex: 0.15,
        backgroundColor: '#e7fe52'
    },

    services: {
        flex: 0.5,
        backgroundColor: '#20fe23'
    },

    chart: {
        flex: 0.35,
        flexWrap: 'wrap',
        backgroundColor: '#4fccb0'
    }
});

0.15 + 0.5 + 0.35 = 1

Upvotes: -1

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