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flutter image flash #38883

@jlcool

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@jlcool

Are the following methods used the same? What is the possible reason?

PaintingBinding.instance.imageCache.maximumSize=100;
PaintingBinding.instance.imageCache.maximumSizeBytes= 50 << 20;

Questions such as the presentation in the video
flutterimage

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, v1.8.4-pre.47, on Microsoft Windows [Version 10.0.17134.950], locale zh-CN)

[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[√] Visual Studio - develop for Windows (Visual Studio Enterprise 2017 15.9.4)
[√] Android Studio (version 3.4)
[√] Connected device (2 available)

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thank you

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