feat(android): update jni to 0.21 (#776)

.changes/jni-0.21.md

@@ -0,0 +1,5 @@
+---
+"tao": minor
+---
+
+Update jni to 0.21.

Cargo.toml

@@ -53,7 +53,7 @@ image = "0.24"
 env_logger = "0.10"
 
 [target."cfg(target_os = \"android\")".dependencies]
-jni = "0.20"
+jni = "0.21"
 ndk = "0.7"
 ndk-sys = "0.4"
 ndk-context = "0.1"

src/platform_impl/android/mod.rs

@@ -751,7 +751,7 @@ impl Window {
     // TODO: Use main activity instead?
     let mut handle = AndroidNdkWindowHandle::empty();
     if let Some(w) = ndk_glue::window_manager() {
-      handle.a_native_window = w.as_obj().into_raw() as *mut _;
+      handle.a_native_window = w.as_obj().as_raw() as *mut _;
     } else {
       panic!("Cannot get the native window, it's null and will always be null before Event::Resumed and after Event::Suspended. Make sure you only call this function between those events.");
     };
@@ -800,7 +800,7 @@ impl MonitorHandle {
     if let Some(w) = ndk_glue::window_manager() {
       let ctx = ndk_context::android_context();
       let vm = unsafe { jni::JavaVM::from_raw(ctx.vm().cast()) }.unwrap();
-      let env = vm.attach_current_thread().unwrap();
+      let mut env = vm.attach_current_thread().unwrap();
       let window_manager = w.as_obj();
       let metrics = env
         .call_method(
@@ -818,7 +818,7 @@ impl MonitorHandle {
         .l()
         .unwrap();
       let width = env
-        .call_method(rect, "width", "()I", &[])
+        .call_method(&rect, "width", "()I", &[])
         .unwrap()
         .i()
         .unwrap();

src/platform_impl/android/ndk_glue.rs

@@ -153,7 +153,7 @@ pub enum Event {
 }
 
 pub unsafe fn create(
-  env: JNIEnv,
+  mut env: JNIEnv,
   _jclass: JClass,
   jobject: JObject,
   setup: unsafe fn(JNIEnv, &ForeignLooper, GlobalRef),
@@ -163,7 +163,7 @@ pub unsafe fn create(
   // Initialize global context
   let window_manager = env
     .call_method(
-      jobject,
+      &jobject,
       "getWindowManager",
       "()Landroid/view/WindowManager;",
       &[],
@@ -178,7 +178,7 @@ pub unsafe fn create(
   let env = vm.attach_current_thread_as_daemon().unwrap();
   ndk_context::initialize_android_context(
     vm.get_java_vm_pointer() as *mut _,
-    activity.as_obj().into_raw() as *mut _,
+    activity.as_obj().as_raw() as *mut _,
   );
 
   let looper = ThreadLooper::for_thread().unwrap().into_foreign();