2 files changed, 108 insertions, 0 deletions
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index f330b8353b50..1a4ec94d77b4 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -1027,5 +1027,15 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name="PositionListenerActivity"
+            android:label="RenderNode/PositionListener"
+            android:screenOrientation="fullSensor">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.test.hwui.TEST" />
+            </intent-filter>
+        </activity>
+
     </application>
 </manifest>
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/PositionListenerActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/PositionListenerActivity.java
new file mode 100644
index 000000000000..316aad343d19
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/PositionListenerActivity.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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.android.test.hwui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.RenderNode;
+import android.os.Bundle;
+import android.widget.LinearLayout;
+import android.widget.ProgressBar;
+import android.widget.ScrollView;
+import android.widget.TextView;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class PositionListenerActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final LinearLayout layout = new LinearLayout(this);
+        layout.setOrientation(LinearLayout.VERTICAL);
+
+        ProgressBar spinner = new ProgressBar(this, null, android.R.attr.progressBarStyleLarge);
+        layout.addView(spinner);
+
+        ScrollView scrollingThing = new ScrollView(this);
+        scrollingThing.addView(new MyPositionReporter(this));
+        layout.addView(scrollingThing);
+
+        setContentView(layout);
+    }
+
+    static class MyPositionReporter extends TextView implements RenderNode.PositionUpdateListener {
+        RenderNode mNode;
+        int mCurrentCount = 0;
+        int mTranslateY = 0;
+
+        MyPositionReporter(Context c) {
+            super(c);
+            mNode = new RenderNode("positionListener");
+            mNode.requestPositionUpdates(this);
+            setTextAlignment(TEXT_ALIGNMENT_VIEW_START);
+        }
+
+        @Override
+        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+            setMeasuredDimension(getMeasuredWidth(), 10000);
+        }
+
+        @Override
+        protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+            mNode.setLeftTopRightBottom(left, top, right, bottom);
+        }
+
+        @Override
+        protected void onDraw(Canvas canvas) {
+            ScrollView parent = (ScrollView) getParent();
+            canvas.translate(0, parent.getScrollY());
+            super.onDraw(canvas);
+            canvas.translate(0, -parent.getScrollY());
+            // Inject our listener proxy
+            canvas.drawRenderNode(mNode);
+        }
+
+        @Override
+        public void positionChanged(long frameNumber, int left, int top, int right, int bottom) {
+            post(() -> {
+                mCurrentCount++;
+                setText(String.format("%d: Position [%d, %d, %d, %d]", mCurrentCount,
+                        left, top, right, bottom));
+            });
+        }
+
+        @Override
+        public void positionLost(long frameNumber) {
+            post(() -> {
+                mCurrentCount++;
+                setText(mCurrentCount + " No position");
+            });
+        }
+    }
+}