[android] - move calculation of LatLngBounds to core (#8765)

platform/android/src/map/camera_position.cpp

@@ -0,0 +1,24 @@
+#include "camera_position.hpp"
+#include "../geometry/lat_lng.hpp"
+
+namespace mbgl {
+namespace android {
+
+jni::Object<CameraPosition> CameraPosition::New(jni::JNIEnv &env, mbgl::CameraOptions options) {
+    static auto constructor = CameraPosition::javaClass.GetConstructor<jni::Object<LatLng>, double, double, double>(env);
+    auto center = options.center.value();
+    center.wrap();
+    return CameraPosition::javaClass.New(env, constructor, LatLng::New(env, center), options.zoom.value_or(0), options.pitch.value_or(0), options.angle.value_or(0));
+}
+
+void CameraPosition::registerNative(jni::JNIEnv &env) {
+    // Lookup the class
+    CameraPosition::javaClass = *jni::Class<CameraPosition>::Find(env).NewGlobalRef(env).release();
+}
+
+jni::Class<CameraPosition> CameraPosition::javaClass;
+
+
+} // namespace android
+} // namespace mb
+