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Compose Shadow Alternative

Avatar for Masatoshi Kubode Masatoshi Kubode
November 14, 2023
Technology
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Compose Shadow Alternative

Talked in https://potatotips.connpass.com/event/299247/

Avatar for Masatoshi Kubode

Masatoshi Kubode

November 14, 2023

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Transcript

  1. © 2023 Wantedly, Inc. Compose Shadow Alternative potatotips #85 2023/11/14

    久保出 雅俊

  2. wantedly.com/id/kubode © 2023 Wantedly, Inc. X: @swiz_ard GitHub: @kubode

  3. 今日の目的 © 2023 Wantedly, Inc.

  4. 目的 © 2023 Wantedly, Inc. https://github.com/kubode/compose-shadow-alternative の宣伝

  5. 影の表現 © 2023 Wantedly, Inc.

  6. CSS © 2023 Wantedly, Inc.

  7. SwiftUI © 2023 Wantedly, Inc.

  8. Compose © 2023 Wantedly, Inc.

  9. モチベ Composeでも DropShadow | BoxShadowし たい！ © 2023 Wantedly, Inc.

  10. BoxShadow © 2023 Wantedly, Inc.

  11. BoxShadow © 2023 Wantedly, Inc.

  12. BoxShadowの実装 © 2023 Wantedly, Inc. ブラー効果のPaint（影の実体 shapeの部分をくり抜き x,yずらす 影を描画

  13. DropShadow © 2023 Wantedly, Inc.

  14. DropShadow © 2023 Wantedly, Inc.

  15. DropShadowの実装 © 2023 Wantedly, Inc.

  16. DropShadowの実装 © 2023 Wantedly, Inc.

  17. DropShadowの実装 © 2023 Wantedly, Inc. BitmapとCanvasを保持

  18. DropShadowの実装 © 2023 Wantedly, Inc. Compose 1.6で追加されたAPI 別のCanvasに描画できる

  19. DropShadowの実装 © 2023 Wantedly, Inc. ContentのImageを描画 ブラーをかける

  20. 1. Android 12以降じゃないと動作しない 2. コンテンツ内のIndicationなどが効かない 3. パフォーマンスは悪い 制約 © 2023

    Wantedly, Inc.

  21. まとめ © 2023 Wantedly, Inc.

  22. • Composeでもリッチな影表現は可能 • 公式でサポートしてほしい まとめ © 2023 Wantedly, Inc.

  23. © 2023 Wantedly, Inc. https://github.com/kubode/compose-shadow-alternative