About Android NDK version

[temeddix]

For Android, The NDK version that your project expects is specified in ./android/app/build.gradle file as ndkVersion variable inside android block. The value of this ndkVersion should be flutter.ndkVersion and you should be using Flutter SDK 3.10 or higher.

ndkVersion can be absent if you've created your project with older Flutter SDKs. If ndkVersion is not defined in your ./android/app/build.gradle file, go ahead and write one yourself.

Add this line:

..
android {
    namespace "com.cunarist.rust_in_flutter_example"
    compileSdkVersion flutter.compileSdkVersion
    ndkVersion flutter.ndkVersion // <------ THIS LINE

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }
..

[moluopro]

This is something that should be spelled out in the documentation. In fact, I think the current documentation has a lot of room for improvement. A lot of details are missing for newbies. For example, how to access the library from scratch in a project, the role of each file in the native directory, and things like dynamic libraries being automatically packaged into the project.

[temeddix]

There was a guide about NDK version before, but since Flutter SDK automatically installs Android NDK by default for FFI plugins like this, there was no need for people to manually install Android NDK. Perhaps we should lower the NDK version though. I'm not sure if we can use the default NDK version of Flutter, though.

For other parts, yes I agree that docs can be more detailed. It should be filled out in near future versions. If you have any detailed suggestions for the content, please feel free to leave a PR :)

[temeddix]

Or if you had some issues with NDK installation, please let me know!

[moluopro]

I translated the doc and submitted a PR.

The NDK installation process doesn't require new doc content anymore. However, changes the NDK version in . /android/app/build.gradle should be written to the doc. Because I had this problem the first time I used it (and then I googled to solve it)

[moluopro]

Since you said you would be modifying the doc, I didn't add new content into it, just the translation.

[temeddix]

Okay :) I will come back soon and review the PR and the direction of the NDK docs