要在Android NDK中获取屏幕分辨率，您可以使用JNI接口访问Java的DisplayMetrics类。以下是一个示例代码，演示如何在本地二进制文件中获取屏幕分辨率：

1. 首先，在您的Java代码中创建一个方法来获取屏幕分辨率：

import android.content.Context;
import android.util.DisplayMetrics;
import android.view.WindowManager;

public class ScreenUtils {
    public static int[] getScreenResolution(Context context) {
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics metrics = new DisplayMetrics();
        windowManager.getDefaultDisplay().getMetrics(metrics);
        int[] resolution = new int[2];
        resolution[0] = metrics.widthPixels;
        resolution[1] = metrics.heightPixels;
        return resolution;
    }
}

2. 在您的C/C++代码中，通过JNI接口调用Java代码：

#include 

extern "C" JNIEXPORT jintArray JNICALL
Java_com_example_myapplication_ScreenUtils_getScreenResolution(JNIEnv* env, jobject jobj, jobject context) {
    jclass cls_context = env->GetObjectClass(context);
    jmethodID mid_getSystemService = env->GetMethodID(cls_context, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
    jstring window_service = env->NewStringUTF("window");
    jobject window_manager = env->CallObjectMethod(context, mid_getSystemService, window_service);

    jclass cls_window_manager = env->GetObjectClass(window_manager);
    jmethodID mid_getDefaultDisplay = env->GetMethodID(cls_window_manager, "getDefaultDisplay", "()Landroid/view/Display;");
    jobject display = env->CallObjectMethod(window_manager, mid_getDefaultDisplay);

    jclass cls_display = env->GetObjectClass(display);
    jmethodID mid_getMetrics = env->GetMethodID(cls_display, "getMetrics", "(Landroid/util/DisplayMetrics;)V");

    jobject metrics = env->NewObject(cls_display, mid_getMetrics);

    env->CallVoidMethod(display, mid_getMetrics, metrics);

    jclass cls_display_metrics = env->GetObjectClass(metrics);
    jfieldID fid_widthPixels = env->GetFieldID(cls_display_metrics, "widthPixels", "I");
    jfieldID fid_heightPixels = env->GetFieldID(cls_display_metrics, "heightPixels", "I");

    jintArray resolution = env->NewIntArray(2);
    jint* resolutionArray = env->GetIntArrayElements(resolution, NULL);
    resolutionArray[0] = env->GetIntField(metrics, fid_widthPixels);
    resolutionArray[1] = env->GetIntField(metrics, fid_heightPixels);
    env->ReleaseIntArrayElements(resolution, resolutionArray, 0);

    return resolution;
}

3. 在您的Java代码中，通过JNI接口调用C/C++代码：

public class MainActivity extends AppCompatActivity {
    static {
        System.loadLibrary("native-lib");
    }

    public native int[] getScreenResolution(Context context);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        int[] resolution = getScreenResolution(this);
        int width = resolution[0];
        int height = resolution[1];

        // 在这里使用分辨率数据
    }
}

通过使用以上代码，您可以在Android NDK中获取屏幕分辨率。请注意，您需要在AndroidManifest.xml文件中添加相应的权限以访问屏幕信息：

希望对您有所帮助！