android how to use unity Image GetNativeTexturePtr

Hi,i want to let andorid use unity3D image ,

public void SetUnityTexture(final int iTextureID) { Log.d(TAG, "SetUnityTexture: -----------------------"); try { int [] textures = new int[1]; textures[0] = iTextureID; glGenTextures( 1, textures,0 ); glBindTexture( GL_TEXTURE_EXTERNAL_OES, textures[0] ); glTexParameterf( GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); glTexParameterf( GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); glTexParameterf( GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ); glTexParameterf( GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ); glBindTexture( GL_TEXTURE_EXTERNAL_OES, 0 );

         m_iUnityTextureID = textures[0];
         m_SurfaceTexture = new SurfaceTexture(textures[0]);
         m_SurfaceTexture.setOnFrameAvailableListener(this);
         m_SurfaceTexture.setDefaultBufferSize(1024,768);
         m_Surface = new Surface(m_SurfaceTexture);
         mMediaPlayerWrapper.setSurface(m_Surface);
     }
     catch (Exception ex)
     {
         Log.i(TAG, "SetUnityTexture: !!!!!!!!!!!!!!!!!!!!!!!!!!===>" + ex.getMessage());
     }

// m_UnityActivity.runOnUiThread(new Runnable() { // @Override // public void run() { // // } // });

 }

but it does not works don't know how to solute it.