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Check this, I think this site explains what you need:

https://codelabs.developers.google.com/codelabs/android-studio-cmake/index.html?index=..%2F..%2Findex#0

Remember to check the "What you'll need"

Update:

NDK: https://developer.android.com/ndk/downloads/index.html source: https://developer.android.com/ndk/index.html

CMake: https://cmake.org/files/v3.7/cmake-3.7.1-win64-x64.zip source: https://cmake.org/

LLDB (Just for Debian systems): http://apt.llvm.org/ source: http://lldb.llvm.org/download.html

Once you download these files, copy to your SDK folder (normally in: "C:\android-sdk\") You can localize the folder here:

File -> project Structure into Project Structure
Left -> SDK Location

Then you can continue with the previous guide after the downloads :)

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Check in your build.gradle file for your App's module

externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}

Remove the cmake section
Re-synchronise the project: go to menu Build -> Refersh Lined C++ Projects
Right-click on the module, such as the app module, select "Link C++ Project with Gradle" from the menu.
You should see a dialog similar to the one shown in below figure.
Click OK.

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In my case changing CMake path worked :

externalNativeBuild {
/*
cmake {
path "CMakeLists.txt"
}
*/


cmake {
path 'src/main/jni/opus/CMakeLists.txt'
}
}

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Open SDK Manager
Switch to the SDK Tools tab
Install CMake

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If you do the following you may get CMake without any problems:

Open the Settings (Android Studio);
Search by "Android SDK";
On the right side, go to the "SDK Tools" pallet|tab;
Check the "CMake" item on the list;
Press OK button;
Now, just wait the next century while Gradle builds, =D .

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Go to Android SDK manager
Select Android SDK Tools
Find CMake and click Apply to download.
Later click OK

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In my case (Android Studio 3.0), there was no CMake in the "SDK Tools" tab in "Appearance & Behaviour -> System Settings -> Android SDK" options. However I noticed that in the "SDK Update sites" tab, there are only two entries, one of which (Android Repository https://dl.google.com/android/repository/repository2-1.xml) had a red mark in the "enabled" column. It read "error 407" on mouseover, which is a proxy authentication error. I had the correct proxy settings (test connection worked fine with the same repository URL), so this was very strange. Restarting android studio didn't help. So I added a new entry with the same repository and this time it worked fine and CMake appeared in the other tab. Hope this helps someone.

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You can install it in the SDK Manager Tools, but first you must close your opened project. Use configuration on start menu.

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Open Android Studio 🙂
Hover over your toolbar until you find SDK Manager, as in the image above
Click on SDK Manager
In Default Preferences, go to Appearance and Behavior
Now select System Settings
Now select Android SDK
Click on SDK Tools
Check on CMake

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Check if you are using a 64-bit version of Android Studio. In Android Studio 32 bit, CMake will not appear in SDK Manager.

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For me, mac OS Android studio. in File->Project Structure-> Project, I changed Gradle version to 4.4 and Android plugin version to 3.1.0, then it gets good.

Plus, you can also change Android plugin version in gradle-> classpath 'com.android.tools.build:gradle:3.1.0'

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place path of the module where your cmake is exist

if your cmake exist in app main

 externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}

if your cmake exist in any module

  externalNativeBuild {
cmake {
path file('../modulelib/CMakeLists.txt')
}
}

where "modulelib" is your library module folder name

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For me what solved as taking off the "version" option in my gradle

 externalNativeBuild {
cmake {
path "src/main/cpp/CMakeLists.txt"
//version was here
}
}

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I'm on Android Studio 4.2 C15 using SDK 30 in tandem with OpenCV 4 and Ninja, and in my case changing the CMake path like below worked:

externalNativeBuild {
/*
cmake {
path "CMakeLists.txt"
}
*/


cmake {
path (project.projectDir.toString() + '/libcxx_helper/CMakeLists.txt')
}
}

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Actually, I'm not sure if my solution will be relevant, I will leave it here anyways

go to /Users/yournamehere/Library/Android/sdk/ndk I found the version 21.4.7075529 and deleted it, and then downloaded the same version again using android studio from configuration > Preferences and follow the steps in the attached image

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For me the error was:

CMake '3.10.2' was not found in SDK, PATH, or by cmake.dir property

I solved it by adding + to CMake version.

externalNativeBuild {
cmake {
path file('src/main/cpp/CMakeLists.txt')
version '3.10.2+' // added plus after version
}
}

无法在 Android Studio 中找到 CMake

Update: