libgdx – How can I avoid assets reload if an Android activity is re-created?

I’ve put my libGDX view inside a bigger Android layout. When the user rotates the screen, a new layout specific for the orientation is drawn, for this reason, the activity is rebuilt from scratch forcing the libGDX view to reload all assets.

I tried to store these assets in a static variable, but on the second time I create the libGDX view, they are not rendered correctly (it looks like textures are not loaded and everything is transparent).

How can I avoid reloading heavy assets (models and textures)?