manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.mytest">

    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="24" />

    <application android:label="@string/app_name"
        android:hasCode="false">

        <activity android:name="android.app.NativeActivity"
            android:configChanges="orientation|keyboardHidden"
            android:label="@string/app_name" >

            <meta-data android:name="android.app.lib_name"
                android:value="native-activity" />

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>
    </application>
</manifest>


void android_main(struct android_app* app)
{
	// ...
}

// more details ...
// https://developer.android.com/reference/android/app/NativeActivity.html