To install a specific version of the dotnet sdk, download the latest stable version of the dotnet-install script: ANDROID_NDK & ANDROID_SDK ( right under Testing Libraries on Android).When running an activity in a non-UI thread, FindClass in native-lib.c will not work. If you wish to use your own activity file, set NativeMainSource in AndroidSampleApp.csproj to point at your activity file, and the class is currently restricted to be called MainActivity. The mono runtime headers should be supplied through the build process. The purpose of this sample is to demonstrate the concept of building an Android application on top of the mono runtime. With the sample running, you can enter your name and click the corresponding button to modify the greeting message as well as clicking a button to increment a counter.
Then through the Java Native Interface (JNI), the java code (MainActivity.java) can call and be called by the C unamanged code.
In this sample, the mono runtime is used to invoke C unmanaged code (native-lib.c) from the C# managed side (AndroidSampleApp.cs) and vice versa.
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