用 CustomPaint 畫出複雜的聲音波

用 CustomPaint 畫出複雜的聲音波

紅寶鐵軌客

寫程式中、折磨中、享受中 ......

333 0

2021/12/10

30 mins read

☕

Summary

深入 CustomPaint()，導入多工 isolate() 計算複雜的波形資料，優化使用者體驗，正面對決巨量繪圖的挑戰

產生音波 PCM

接下來，我們將要展示如何畫出音波，要畫出音波就要有音波的數值，也就是 PCM（脈波編碼調變，英語：Pulse-code modulation），...

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快速學會 Flutter 2 - NT$168

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code milestone 13

V0.7 成果展示 2 - 可以畫出音檔波形圖了

Article info

This article is part of:

快速學會 Flutter 2

分類於:

科技

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程式開發

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Flutter

科技

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Android

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軟體開發

科技

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蘋果

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iOS軟體開發

標籤:

computer() isolate() repaintboundary() randerslider() canvas.save should repaint() custompainter performance profile vsync fps custompaint ffmpeg 音波圖 pcm flutter 2 快速學會 flutter

日期:

創作於：2021/12/10，最後更新於：2021/12/11。

合計：8926字

About the Author

很久以前就是個「寫程式的」，其實，什麼程式都不熟⋯⋯
就，這會一點點，那會一點點⋯⋯

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