Question 1

How to add tooltips to flutter_candlesticks charts?

Accepted Answer

The package does not natively support tooltips. Developers need to implement custom overlays or consider alternative libraries with interactive features for hover effects on data points, as this is a known limitation.

Question 2

flutter_candlesticks vs fl_chart for financial charts?

Accepted Answer

flutter_candlesticks focuses on elegant OHLC and volume charts with simplicity and minimal config, while fl_chart offers a wider range of chart types and interactivity but requires more setup. Choose based on whether you prioritize specialized candlestick visualization or broader, interactive charting capabilities.

Question 3

Can I change the volume bar colors in flutter_candlesticks?

Accepted Answer

Yes, customization is possible through the package's styling properties. While specific volume color options aren't detailed, you can adjust overall colors for increasing and decreasing elements, and volume bars likely inherit these styles based on the data.

Question 4

How to update charts with real-time data in flutter_candlesticks?

Accepted Answer

Update the 'data' property with new lists and rebuild the widget. However, the package isn't optimized for high-frequency updates, so performance with frequent changes might degrade, and you should test with your specific data flow.

Question 5

What data format does flutter_candlesticks require?

Accepted Answer

It requires a list of maps with keys 'open', 'high', 'low', 'close', and 'volumeto', as shown in the example. Ensure your data source provides numeric values in this exact structure for proper rendering.

Question 6

Is flutter_candlesticks suitable for dark mode apps?

Accepted Answer

Yes, it works seamlessly with dark themes. You can customize grid line and label colors to match your app's theme, as demonstrated in the dark mode screenshots provided in the README.

Candlesticks

What is Candlesticks?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions