1 files changed, 66 insertions, 0 deletions
diff --git a/src/com/android/launcher3/PageIndicatorMarker.java b/src/com/android/launcher3/PageIndicatorMarker.java
new file mode 100644
index 000000000..852ee518f
--- /dev/null
+++ b/src/com/android/launcher3/PageIndicatorMarker.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2011 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.launcher3;
+
+import android.animation.LayoutTransition;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import com.android.launcher3.R;
+
+public class PageIndicatorMarker extends FrameLayout {
+    @SuppressWarnings("unused")
+    private static final String TAG = "PageIndicator";
+
+    private static final int MARKER_FADE_DURATION = 150;
+
+    private View mActiveMarker;
+    private View mInactiveMarker;
+
+    public PageIndicatorMarker(Context context) {
+        this(context, null);
+    }
+
+    public PageIndicatorMarker(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public PageIndicatorMarker(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    protected void onFinishInflate() {
+        mActiveMarker = findViewById(R.id.active);
+        mInactiveMarker = findViewById(R.id.inactive);
+    }
+
+    public void activate() {
+        mActiveMarker.animate().alpha(1f)
+                .setDuration(MARKER_FADE_DURATION).start();
+        mInactiveMarker.animate().alpha(0f)
+                .setDuration(MARKER_FADE_DURATION).start();
+    }
+    public void inactivate() {
+        mInactiveMarker.animate().alpha(1f)
+                .setDuration(MARKER_FADE_DURATION).start();
+        mActiveMarker.animate().alpha(0f)
+                .setDuration(MARKER_FADE_DURATION).start();
+    }
+}