![]() ![]() ** Called when the activity is first created. I called it HelloNDK and used the following code. I installed all files to C:\cygwin.Ĭreate a new standard Android project. Search for “make” and “shell” to find them. Then a huge list appears where you can select the components to download.Īdd “Devel/make” and “Shells/bash”. Execute setup.exe and select a server to download the Cygwin files from. Copy the folder into D:\dev\SDKs\ Install Cygwinĭownload setup.exe from. At the time of writing, android android-ndk-r4b was the latest version. Go to and download the Android NDK for Windows. The code for this tutorial is available here Download NDK Note that the paths MUST NOT CONTAIN SPACES. Please adapt them to use system if necessary. I am using these paths as they appear on my computer. There are three important paths: Eclipse Workspace D:\Dev\workspace-android This guide assumes that you have Eclipse with ADT and the Android SDK version 3 (1.5) up and running. It has been tested on Windows XP and Windows 7. It will use cygwin for compiling the native code. ![]() Won't be able to deploy and debug on your device.Īfter you set up your Android device, go to Run -> run App.This tutorial illustrates how to setup and use the Android NDK under Windows. Without the drivers, ADB (Android Debug Bridge) won't connect and you Either way, make sure to check in the Windows Device Manager that your device has its drivers installed. The driver you downloaded from Android Studio should be located at "C:\androidsdk\extras\google\usb_driver" which may work with your device or yourĭevice may require a driver from the manufacturer. Make sure you have the device drivers installed on your Windows machine. Google search "android enable usb debugging" with your device name and they'll show you how to do That is version/device specific which is why I won't go over it here. You can use an Android emulator, but theĮmulator is can be really, really slow so I recommend getting an Android device if you can.įirst you'll need to enable USB debugging on your device. 20) Our SDL application is ready to build and run, but first we need to set up our device. If the application needs to open "52_hello_mobile\hello.bmp", it needs to be at "C:\androidprojects\SDL\app\src\main\assets\52_hello_mobile\hello.bmp" when building. ![]() Copy the directory inside of the zip we downloaded and place it in the assetsĭirectory. Create a folder called "assets" at "C:\androidprojects\SDL\app\src\main\assets". This will change the name under the App's icon from "SDL App" to "SDL Tutorial".ġ9) At this point the app will run our code but it will fail because it can't load the media files for the tutorial. 18) Open "C:\androidprojects\SDL\app\src\main\res\values\strings.xml" and change Build again and you should get no errors. To fix this, open up "C:\androidprojects\SDL\app\src\main\jni\Application.mk" and change Is due to the fact that the project is not set up to use the standard C library. 17) The errorĮrror:(7, 10) fatal error: 'string' file not found Build and you should get a new error in the gradle build menu. Open up "C:\androidprojects\SDL\app\src\main\jni\src\Android.mk" and change "YourSourceHere.c" to "C:\androidprojects\SDL\app\src\main\jni\src\52_hello_mobile.cpp". YourSourceHere.c is a place holder for our application source file so we need to replace it with ours.ĭownload the source for lesson 52 and place 52_hello_mobile.cpp at It's trying to compile "C:/androidprojects/SDL/app/src/main/jni/src/YourSourceHere.c" but can't find it which In this case, the error "No rule to make target" actually means it can't find the file you're asking to compile. `C:/androidprojects/SDL/app/src/main/jni/src/YourSourceHere.c', needed by `C:/androidprojects/SDL/app/build/intermediates/ndkBuild/debug/obj/local/armeabi/objs-debug/main/YourSourceHere.o'. Scroll up a bit and you'll see some errors from the ndk-build. Open up the project window, right click on app and select What we need to do is tell gradle (the build tool used by Android Studio) to use the Android make file for our project. SDL2 as a shared object that will interface with Java, and we'll build our game as another shared object that will interface with SDL 2. The Native Development Kit that allows Java to interface with native C/C code using the Java Native Interface. Android development is mostly Java based and SDL is a C based library. Let's back up a bit and talk about how SDL 2 on Android works. This is complaining that the NDK setup is broken for our project. > Error: Your project contains C files but it is not using a supported native build system.Ĭonsider using CMake or ndk-build integration with the stable Android Gradle plugin: 14) The new error will say:Įrror:Execution failed for task ':app:compileDebugNdk'. ![]() Build again and you should get a new error. ![]()
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