ProFinancialCharts: A new Flutter package! [Currently private]

Features

• I have built everything from scratch,

• It shows the date/time and price grids,

• Zoom in and out (enlarging candlesticks),

The GIF above is in real-time and the video is not edited.

Auto-fit Vertical Axis (Min & Max Price Visible)

• The chart auto fits the vertical axis according to the lowest and highest values that are currently visible to the user. I specifically checked some of the most popular crypto trading/exchange apps like Binance and Woo. I found out that their candle charts are literally lagging even on the latest iPhones.

• Creating an auto-fit algorithm is tough but creating a butter-smooth auto-fit algorithm is really difficult. I have used a good amount of knowledge about data structures to achieve high scrolling performance.

The GIF above is in real-time and the video is not edited.

Scroll Back Through History

• It can render +10K candle data in view and scroll through them smoothly. (If you know what I mean, in a daily view, 1 candle represents 1 day and 10,000 days back from today ends up at some date in 1993),

The GIF above shows the real-time scrolling and the video is not sped up.

Merge Candlesticks

• It can merge candles into one. For example, it can show 7 daily candles as 1 weekly candle without needing to provide a new dataset,

The GIF above shows the real-time candle merging and the video is not edited.