如何清除Flutter的构建缓存？ [英] How to clear Flutter's Build cache?

问题描述

flutter的构建似乎有问题。

我总是需要执行 RUN > Flutter完全重启

否则，该应用程序将加载一个脚手架主体，该主体是我两周前首次开始对其进行编码时所拥有的代码。

我猜是flutter缓存了旧代码，从不费心用新代码替换它，但我不确定它是如何实现热加载的。无论如何，当我们已经执行了完全重建时，我认为没有必要加载旧的缓存。

解决方案

您可以运行 flutter clean 。

但这很可能是您的IDE或类似问题，因为抖动运行会产生全新的APK。

尝试使用命令行 flutter run 运行应用，然后按 r 或 R 分别用于热重装和完全重装。

There seems to be a problem with flutter's build.

I always need to perform RUN > Flutter Full Restart everytime I run the app to an emulator or device.

Otherwise, the app loads a scaffold body which my code had from 2 weeks ago when I first started coding it.

Here's the current source on pastebin

children: <Widget>[
          new Opacity(
              opacity: loader_visible ? 1.0 : 0.0,
              child:
              new Container(
                  padding: const EdgeInsets.all(32.0),
                  child: new CircularProgressIndicator()
              )
          ),

while here is the resulting render tree:

I'm guessing flutter has cached the old code and never bothered replacing it with the new one, but I am not sure how it's Hot Reload was implemented. Anyways, I don't think that it is necessary to load the old cache when we have already performed a full rebuild.

解决方案

You can run flutter clean.

But that's most likely a problem with your IDE or similar, as flutter run creates a brand new apk. And hot reload push only modifications.

Try running your app using the command line flutter run and then press r or R for respectively hot-reload and full-reload.

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