[android] example custom layer - add context lost callback

mapbox · Sep 21, 2017 · 4ae7052 · 4ae7052
1 parent 8af0af6
commit 4ae7052
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Showing 3 changed files with 10 additions and 0 deletions.
diff --git a/.../src/main/java/com/mapbox/mapboxsdk/testapp/activity/customlayer/CustomLayerActivity.java b/.../src/main/java/com/mapbox/mapboxsdk/testapp/activity/customlayer/CustomLayerActivity.java
@@ -69,6 +69,7 @@ private void swapCustomLayer() {
  ExampleCustomLayer.createContext(),
  ExampleCustomLayer.InitializeFunction,
  ExampleCustomLayer.RenderFunction,
+ ExampleCustomLayer.ContextLostFunction, // Optional
  ExampleCustomLayer.DeinitializeFunction);
  mapboxMap.addLayerBelow(customLayer, "building");
  fab.setImageResource(R.drawable.ic_layers_clear);

diff --git a/...tApp/src/main/java/com/mapbox/mapboxsdk/testapp/model/customlayer/ExampleCustomLayer.java b/...tApp/src/main/java/com/mapbox/mapboxsdk/testapp/model/customlayer/ExampleCustomLayer.java
@@ -11,5 +11,6 @@ public class ExampleCustomLayer {
 
  public static long InitializeFunction;
  public static long RenderFunction;
+ public static long ContextLostFunction;
  public static long DeinitializeFunction;
 }
diff --git a/platform/android/src/example_custom_layer.cpp b/platform/android/src/example_custom_layer.cpp
@@ -92,6 +92,10 @@ void nativeRender(void *context, const mbgl::style::CustomLayerRenderParameters&
  reinterpret_cast<ExampleCustomLayer*>(context)->render();
 }
 
+void nativeContextLost(void */*context*/) {
+ mbgl::Log::Info(mbgl::Event::General, "nativeContextLost");
+}
+
 void nativeDenitialize(void *context) {
  mbgl::Log::Info(mbgl::Event::General, "nativeDeinitialize");
  delete reinterpret_cast<ExampleCustomLayer*>(context);
@@ -122,6 +126,10 @@ extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *) {
  env->GetStaticFieldID(customLayerClass, "RenderFunction", "J"),
  reinterpret_cast<jlong>(nativeRender));
 
+ env->SetStaticLongField(customLayerClass,
+ env->GetStaticFieldID(customLayerClass, "ContextLostFunction", "J"),
+ reinterpret_cast<jlong>(nativeContextLost));
+
  env->SetStaticLongField(customLayerClass,
  env->GetStaticFieldID(customLayerClass, "DeinitializeFunction", "J"),
  reinterpret_cast<jlong>(nativeDenitialize));