如何将java的SurfaceControl传入native层的demo

好的，下面是一个简单的示例，演示如何将Java层的SurfaceControl对象传入Native层。

Java层代码：

public class SurfaceControlHelper {
    private native void setSurfaceControl(SurfaceControl surfaceControl);

    static {
        System.loadLibrary("native-lib");
    }

    public void setSurfaceControlNative(SurfaceControl surfaceControl) {
        setSurfaceControl(surfaceControl);
    }
}

Native层代码：

#include <jni.h>
#include <android/native_window.h>
#include <android/native_window_jni.h>
#include <android/surface_control.h>

extern "C" JNIEXPORT void JNICALL
Java_com_example_SurfaceControlHelper_setSurfaceControl(JNIEnv *env, jobject thiz, jobject surfaceControl) {
    ANativeWindow* window = ANativeWindow_fromSurface(env, surfaceControl);
    android::SurfaceControl* sc = android::SurfaceControl::createFromWindow(window, "SurfaceControlHelper");
    ANativeWindow_release(window);

    // Do something with the SurfaceControl object
    // ...

    delete sc;
}

在这个示例中，Java层的SurfaceControl对象会被传入Native层的setSurfaceControl方法中。在Native层中，我们可以通过ANativeWindow_fromSurface函数将Java层的SurfaceControl对象转换为ANativeWindow对象，然后使用android::SurfaceControl::createFromWindow函数将ANativeWindow对象转换为android::SurfaceControl对象，最后进行一些操作。这里只是一个示例，您可以根据实际需求进行操作。