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How to implement hot reload in Debian

James Bond

Apr 02, 2025 am 07:54 AM

computertoolemulator

How to implement hot reload in Debian

Experience the convenience of Flutter hot reloading on a Debian system, just follow these steps:

Install the Flutter SDK:

First, you need to install the Flutter SDK on your Debian system. Visit Flutter official website to download the latest stable version of SDK and decompress to the specified directory (for example, ~/flutter). After that, add Flutter's bin directory to the system PATH environment variable. Edit the ~/.bashrc or ~/.profile file and add the following code:
```
 export PATH="$PATH:~/flutter/bin"
```
Save the file and execute source ~/.bashrc or source ~/.profile to make the changes take effect.
Create or open a Flutter project:

If the Flutter project has not been created yet, create a new project using the following command:
```
 flutter create my_flutter_project
```
If an existing project is used, use the cd command to enter the project directory.
Start hot reload:

Make sure you are connected to a running device (such as a phone or tablet) or emulator. Run in the project directory:
```
 flutter run
```
After the application is started, open another terminal window and enter the project directory again. Modify the Dart code and save it, Flutter will automatically detect changes and prompt for hot reload. For manual hot reload, open the developer tool by shaking the device, pressing Ctrl Shift P (or Cmd Shift P in the emulator), and select "Reload".
Important tips:

Hot reloading is not applicable to all code changes. For example, operations such as modifying the class name, adding or removing top-level variables may require restarting the application. If hot reload fails, select Reload to restart the app to apply the changes.

Through the above steps, you can make full use of Flutter's hot reloading function on the Debian system, significantly improve development efficiency, quickly view the code modification effect, and no need to restart the application repeatedly.

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