1 files changed, 49 insertions, 0 deletions
diff --git a/platform/android/src/annotation/polyline.cpp b/platform/android/src/annotation/polyline.cpp
new file mode 100644
index 0000000000..3723dc1871
--- /dev/null
+++ b/platform/android/src/annotation/polyline.cpp
@@ -0,0 +1,49 @@
+#include "polyline.hpp"
+
+#include "../conversion/color.hpp"
+
+namespace mbgl {
+namespace android {
+
+jni::Class<Polyline> Polyline::javaClass;
+
+mbgl::LineAnnotation Polyline::toAnnotation(jni::JNIEnv& env, jni::Object<Polyline> polyline) {
+    auto points = Polyline::getPoints(env, polyline);
+
+    mbgl::LineAnnotation annotation { MultiPoint::toGeometry<mbgl::LineString<double>>(env, points) };
+    annotation.opacity = { Polyline::getOpacity(env, polyline) };
+    annotation.color = { Polyline::getColor(env, polyline) };
+    annotation.width = { Polyline::getWidth(env, polyline) };
+
+    jni::DeleteLocalRef(env, points);
+
+    return annotation;
+}
+
+jni::Object<java::util::List> Polyline::getPoints(jni::JNIEnv& env, jni::Object<Polyline> polyline) {
+    static auto field = Polyline::javaClass.GetField<jni::Object<java::util::List>>(env, "points");
+    return polyline.Get(env, field);
+}
+
+float Polyline::getOpacity(jni::JNIEnv& env, jni::Object<Polyline> polyline) {
+    static auto field = Polyline::javaClass.GetField<float>(env, "alpha");
+    return polyline.Get(env, field);
+}
+
+mbgl::Color Polyline::getColor(jni::JNIEnv& env, jni::Object<Polyline> polyline) {
+    static auto field = Polyline::javaClass.GetField<int>(env, "color");
+    return *conversion::convert<mbgl::Color, int>(env, polyline.Get(env, field));
+}
+
+float Polyline::getWidth(jni::JNIEnv& env, jni::Object<Polyline> polyline) {
+    static auto field = Polyline::javaClass.GetField<float>(env, "width");
+    return polyline.Get(env, field);
+}
+
+void Polyline::registerNative(jni::JNIEnv& env) {
+    Polyline::javaClass = *jni::Class<Polyline>::Find(env).NewGlobalRef(env).release();
+}
+
+
+} // namespace android
+} // namespace mbgl
+\ No newline at end of file