Text in Compose: Beyond the Basics
summary
Explains how Compose turns characters into pixels via StaticLayout → Minikin → HarfBuzz → Skia/FreeType and why Unicode, ligatures, bidi and shaping matter, citing a 5,000 shaped words cache. Covers line-height distribution and new minimum mode to avoid clipping, line-break strategies (simple/high-quality/balance), ICU for break opportunities, and pitfalls of textLayoutResult (one-frame composition delay). Shows concrete APIs and patterns: using text measurer (default cache 8) plus drawText for charts, tap-to-translate offsets, custom underlines, and auto-size support in Compose 1.8.
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chapters (9)
- 0:00Text rendering in Compose
- 7:49How text rendering works
- 9:31Line height and alignment
- 17:38Improving text readability
- 23:18Line breaking for languages
- 24:01Interacting with TextLayoutResult
- 28:57Custom text drawing
- 35:59TextLayoutResult vs TextMeasurer
- 37:01Compose 1.8 text APIs
