fix android

Cargo.toml

@@ -40,6 +40,10 @@ openxr = { git = "https://github.com/Ralith/openxrs", rev = "0177d2d", features
 	"static",
 ] }
 
+[target.'cfg(target_os = "android")'.dependencies]
+ndk-context = "0.1"
+jni = "0.20"
+
 [dev-dependencies]
 bevy = "0.12"
 color-eyre = "0.6.2"

src/lib.rs

@@ -395,6 +395,13 @@ pub fn end_frame(
     environment_blend_mode: Res<XrEnvironmentBlendMode>,
     // passthrough_layer: Option<Res<XrPassthroughLayer>>,
 ) {
+    #[cfg(target_os = "android")]
+    {
+        let ctx = ndk_context::android_context();
+        let vm = unsafe { jni::JavaVM::from_raw(ctx.vm().cast()) }.unwrap();
+        let env = vm.attach_current_thread_as_daemon();
+    }
+
     {
         let _span = info_span!("xr_release_image").entered();
         swapchain.release_image().unwrap();