# YYKline

iOS YYKline：Kline、Chart、Volume、Scroll、Scale、MACD、KDJ、K线图、分时图...

Repository: https://github.com/WillkYang/YYKline
Canonical: https://ross.abutalabs.com/products/yykline
Language: Objective-C
License: MIT
License Family: permissive
Topics: kline, stock, ma, ema, boll, kdj, rsi, wr, macd
Last push: 2021-12-10T06:22:46+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3765, "days_push": 1727, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2454, forks 540 (observed 2026-08-28T04:06:53.108694+00:00)

## What it is
YYKline is an Objective-C library for drawing stock candlestick (K-line) and time-sharing charts on iOS and macOS. It supports common technical indicators such as MA, EMA, BOLL, KDJ, MACD, RSI, and WR, with a painter protocol for adding custom indicators.

## Use cases
- draw candlestick kline charts in an ios stock app
- render intraday time-sharing price charts
- display technical indicators like MACD and KDJ on mobile charts
- add scrollable zoomable stock charts to an iOS app
- implement custom chart indicators via a painter protocol

## When to choose
- you need native iOS/macOS candlestick or intraday charts in Objective-C
- you want built-in support for common technical indicators with extensibility
- you prefer a lightweight drop-in view rather than a full charting framework

## When to avoid
- you need a Swift-native or cross-platform charting solution
- your project targets Android or web
- you need actively maintained code with recent updates

## Facets
- artifact type: library
- maturity: maintenance
- function: data-visualization, charts
- domain: fintech, mobile-development, data-visualization
- platform: cpp
- tags: kline, candlestick-chart, objective-c, stock-chart, technical-indicators, macd, kdj, rsi, time-sharing-chart, ios, macos, swift

## Member repositories
- WillkYang/YYKline (main) score 23
- WillkYang/YYStock (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:53.108694+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:30:06.658657+00:00, confidence not recorded.
  - readme: https://github.com/WillkYang/YYKline (fetched 2026-08-28T04:06:53.108694+00:00, sha 18df65ee5619)
- Data as of 2026-08-30T08:39:29.467469+00:00.