Seems no way to share EGLContext beween qt and android native java.

In some scene we need share opengl context, for example, show offscreen buffer on native android window.   Now I get the EGLContext with 

//代码占位符
    QEGLPlatformContext* aa = (QEGLPlatformContext*)m_context->handle();
    EGLContext eglContext = aa->eglContext();

in QT, it seems no way to create shared opengl es context with eglCreateContext(display, eglConfig, eglContext, attrib_list) In native java code.

Solutions: see comments.