[android] jni high level binding refactor

2 files changed, 51 insertions, 0 deletions

diff --git a/platform/android/src/java/util.cpp b/platform/android/src/java/util.cpp
new file mode 100644
index 0000000000..c630e403d9
--- /dev/null
+++ b/platform/android/src/java/util.cpp
@@ -0,0 +1,18 @@
+#include "util.hpp"
+
+namespace mbgl {
+namespace android {
+namespace java {
+namespace util {
+
+jni::Class<List> List::javaClass;
+
+void registerNative(jni::JNIEnv& env) {
+    List::javaClass = *jni::Class<List>::Find(env).NewGlobalRef(env).release();
+}
+
+
+} // namespace util
+} // namespace java
+} // namespace android
+} // namespace mbgl
\ No newline at end of file
diff --git a/platform/android/src/java/util.hpp b/platform/android/src/java/util.hpp
new file mode 100644
index 0000000000..1a552c7124
--- /dev/null
+++ b/platform/android/src/java/util.hpp
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <mbgl/util/noncopyable.hpp>
+
+#include <jni/jni.hpp>
+
+namespace mbgl {
+namespace android {
+namespace java {
+namespace util {
+
+class List : private mbgl::util::noncopyable {
+public:
+
+    static constexpr auto Name() { return "java/util/List"; };
+
+    template<class T>
+    static jni::Array<jni::Object<T>> toArray(jni::JNIEnv& env, jni::Object<List> list) {
+        static auto toArray = List::javaClass.GetMethod<jni::Array<jni::Object<>> ()>(env, "toArray");
+        return (jni::Array<jni::Object<T>>) list.Call(env, toArray);
+    };
+
+    static jni::Class<List> javaClass;
+
+};
+
+void registerNative(jni::JNIEnv&);
+
+
+} // namespace util
+} // namespace java
+} // namespace android
+} // namespace mbgl
\ No newline at end of file