How to create new h file and add to project android NDK C++? | Android Studio, NDK, C++

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How to create new h file and add to project android NDK C++? | Android Studio, NDK, C++

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How to create new h file and add to project android NDK C++? | Android Studio, NDK, C++

last updated: 24 May 2023

Plan (3 steps)

Step 1.

Open a project in Android Studio

Step 2.

Create a new file my_graphic.h in File Explorer

Step 3.

In the my_graphic.h file, write the code using Android Studio

Step 1. Open a project in Android Studio

Download and open project "native-activity" for Android Studio ...

Step 2. Create a new file my_graphic.h in File Explorer

Open File Explorer
Select the folder

D:\ndk-samples-master\native-activity\app\src\main\cpp\
and create a new file: click New → Text Document

Write the file name: my_graphic.h

After creating a new file in File Explorer, open Android Studio.
We see that the file automatically appeared in Android Studio:

Step 3. In the my_graphic.h file, write the code using Android Studio

Let's write a new C++ class in the file:

my_graphic.h

class MyGraphic
{
public:
     // constructor
     MyGraphic();

protected:
     int m_Width;
     int m_Height;

public:
     // functions
     void Draw();
};

Just like that:

Note!
DO NOT include file my_graphic.h in CMakeLists.txt
Only cpp files need to be included in CMakeLists.txt

Next step: create new cpp file and add to CMakeLists.txt for project android NDK C++

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What are cpp and h files in C++? | Android Studio, NDK, C++

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How to create new cpp file and add to project android NDK C++? | Android Studio, NDK, C++, CMakeLists.txt

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