1 files changed, 62 insertions, 0 deletions
diff --git a/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/app/CanvasARSurfaceView.java b/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/app/CanvasARSurfaceView.java
new file mode 100644
index 0000000000..40c789d0a2
--- /dev/null
+++ b/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/app/CanvasARSurfaceView.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2018 Google LLC All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.skar.examples.helloskar.app;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.PixelFormat;
+import android.util.AttributeSet;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+/**
+ * SurfaceView that is overlayed on top of a GLSurfaceView. All Canvas 2D drawings can be done on
+ * this surface.
+ */
+
+public class CanvasARSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
+
+    boolean running;
+
+    public CanvasARSurfaceView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        SurfaceHolder holder = getHolder();
+        this.setBackgroundColor(Color.TRANSPARENT);
+        this.setZOrderOnTop(true);
+        holder.setFormat(PixelFormat.TRANSPARENT);
+        holder.addCallback(this);
+    }
+
+    public boolean isRunning() {
+        return running;
+    }
+
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+        running = true;
+    }
+
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        running = false;
+    }
+
+    @Override
+    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+    }
+}