kline_chart 1.0.3

Flutter native candlestick chart without dependencies, high performance, smooth scrolling, supports multiple indicators

1.0.3

• Restore genuine Dart 2.17 / Flutter 3.0 compatibility by removing newer framework APIs and declaring the minimum Flutter SDK explicitly.
• Fix real-time data and runtime indicator configuration repaint invalidation.
• Correct OBV, WR, and KDJ window calculations and flat-range KDJ handling.
• Exclude BOLL warm-up sentinels from visible bounds.
• Normalize integer and string values in KLineData.fromJson.
• Copy controller input data and expose chart data through a read-only view.

1.0.2

• Add adaptive price axis ticks with configurable maximum tick count and minimum label spacing.
• Add an optional bottom time axis with automatic label granularity and custom time formatting.
• Export KLineTimeFormatter and KLineTimeLabelGranularity from the public package API.
• Add example controls and documentation for the optional time axis and axis configuration.

1.0.1

• Add instance-based controllers with KLineView(controller: ...) while keeping KLineController.shared as the default legacy entry point.
• Add an example page demonstrating multiple independent chart controllers.
• Add controller data lifecycle APIs for full data replacement, real-time last-candle updates, appends, prepended history, clearing data, automatic chart refresh, and KLineView.onLoadMore.
• Keep legacy controller.data = dataList assignment compatible while recommending named data update methods for production usage.

1.0.0

• Promote the package to the first stable 1.0.0 release.
• Add comprehensive usage wiki documentation in English and Simplified Chinese.
• Add Simplified Chinese README documentation.
• Add customizable number formatting for prices, volumes, and indicator values.
• Add compact default volume formatting with K, M, and B suffixes.
• Add configurable trailing blank space after the latest candle, including maximum trailing blank range and minimum visible real candle count.
• Add grouped chart style APIs for chart canvas, candles, volume bars, crosshair, and info overlay customization.
• Add SAR color customization and extended indicator style options.
• Improve line indicator alignment so latest indicator points align with the latest candle.
• Improve fractional scroll rendering for line indicators, VOL, and MACD so candles and indicators leave the viewport smoothly.
• Fix MACD leading histogram rendering so the first visible bar keeps the correct hollow or filled style.
• Improve chart drawing performance by reusing indicator info painters, batching paths, reducing repaint overhead, and adding benchmark coverage.
• Add API and style documentation for advanced controller-based customization.
• Add display-only main chart overlays for price lines, price zones, candle markers, and event lines.

0.0.1+4

• Add grouped chart, candle, volume, crosshair, and info style customization.
• Add configurable SAR point color.
• Add SAR main chart indicator with configurable acceleration factors.
• Add RSI and MACD sub indicators.
• Add MACD histogram rendering with signal lines.
• Improve long-press candle selection and crosshair alignment.
• Move indicator info text into a separate repaint layer to reduce full chart repaints during long-press interactions.
• Show selected indicator values during long press, including MA, VOL MA, MACD, KDJ, RSI, WR, and OBV values.
• Update package description for pub.dev.
• Add tests for indicator calculations, rendering stability, zoom behavior, and long-press indicator info.

0.0.1+3

• Improve scroll and zoom boundary handling.
• Harden K-line rendering for short data sets, flat price data, zero volume data, and fractional trailing zoom windows.
• Fix empty indicator result typing.
• Improve example configuration and scroll handling.

0.0.1+2

• add example
• adapt to dart 2.17.0

0.0.1+1

• Initial version