Hot reload works by injecting updated source code files into the running Dart Virtual Machine (VM) . After the VM updates classes with the new versions of fields and functions, the Flutter framework automatically rebuilds the widget tree, allowing you to quickly view the effects of your changes.
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Perform Hot Restart:
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To perform a hot restart, run the Flutter: Hot Restart command from the Command Palette, or press Ctrl + Shift + F5 ( Cmd + Shift + F5 on macOS) .
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