diff --git a/services/core/java/com/android/server/policy/StatusBarController.java b/services/core/java/com/android/server/policy/StatusBarController.java
new file mode 100644
index 0000000..4d4ab44
--- /dev/null
+++ b/services/core/java/com/android/server/policy/StatusBarController.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2015 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.server.policy;
+
+import android.app.StatusBarManager;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.os.SystemClock;
+import android.util.Slog;
+import android.view.View;
+import android.view.WindowManager;
+import android.view.WindowManagerInternal;
+import android.view.animation.Animation;
+import android.view.animation.AnimationSet;
+import android.view.animation.Interpolator;
+import android.view.animation.TranslateAnimation;
+
+import com.android.internal.statusbar.IStatusBarService;
+
+import static android.view.WindowManagerInternal.*;
+
+/**
+ * Implements status bar specific behavior.
+ */
+public class StatusBarController extends BarController {
+
+    private static final long TRANSITION_DURATION = 120L;
+
+    private final AppTransitionListener mAppTransitionListener
+            = new AppTransitionListener() {
+
+        @Override
+        public void onAppTransitionPendingLocked() {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        IStatusBarService statusbar = getStatusBarService();
+                        if (statusbar != null) {
+                            statusbar.appTransitionPending();
+                        }
+                    } catch (RemoteException e) {
+                        Slog.e(mTag, "RemoteException when app transition is pending", e);
+                        // re-acquire status bar service next time it is needed.
+                        mStatusBarService = null;
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void onAppTransitionStartingLocked(IBinder openToken, IBinder closeToken,
+                final Animation openAnimation, final Animation closeAnimation) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        IStatusBarService statusbar = getStatusBarService();
+                        if (statusbar != null) {
+                            long startTime = calculateStatusBarTransitionStartTime(openAnimation,
+                                    closeAnimation);
+                            statusbar.appTransitionStarting(startTime, TRANSITION_DURATION);
+                        }
+                    } catch (RemoteException e) {
+                        Slog.e(mTag, "RemoteException when app transition is starting", e);
+                        // re-acquire status bar service next time it is needed.
+                        mStatusBarService = null;
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void onAppTransitionCancelledLocked() {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        IStatusBarService statusbar = getStatusBarService();
+                        if (statusbar != null) {
+                            statusbar.appTransitionCancelled();
+                        }
+                    } catch (RemoteException e) {
+                        Slog.e(mTag, "RemoteException when app transition is cancelled", e);
+                        // re-acquire status bar service next time it is needed.
+                        mStatusBarService = null;
+                    }
+                }
+            });
+        }
+    };
+
+    public StatusBarController() {
+        super("StatusBar",
+                View.STATUS_BAR_TRANSIENT,
+                View.STATUS_BAR_UNHIDE,
+                View.STATUS_BAR_TRANSLUCENT,
+                StatusBarManager.WINDOW_STATUS_BAR,
+                WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+    }
+
+    public AppTransitionListener getAppTransitionListener() {
+        return mAppTransitionListener;
+    }
+
+    /**
+     * For a given app transition with {@code openAnimation} and {@code closeAnimation}, this
+     * calculates the timings for the corresponding status bar transition.
+     *
+     * @return the desired start time of the status bar transition, in uptime millis
+     */
+    private long calculateStatusBarTransitionStartTime(Animation openAnimation,
+            Animation closeAnimation) {
+        if (openAnimation != null && closeAnimation != null) {
+            TranslateAnimation openTranslateAnimation = findTranslateAnimation(openAnimation);
+            TranslateAnimation closeTranslateAnimation = findTranslateAnimation(closeAnimation);
+            if (openTranslateAnimation != null) {
+
+                // Some interpolators are extremely quickly mostly finished, but not completely. For
+                // our purposes, we need to find the fraction for which ther interpolator is mostly
+                // there, and use that value for the calculation.
+                float t = findAlmostThereFraction(openTranslateAnimation.getInterpolator());
+                return SystemClock.uptimeMillis()
+                        + openTranslateAnimation.getStartOffset()
+                        + (long)(openTranslateAnimation.getDuration()*t) - TRANSITION_DURATION;
+            } else if (closeTranslateAnimation != null) {
+                return SystemClock.uptimeMillis();
+            } else {
+                return SystemClock.uptimeMillis();
+            }
+        } else {
+            return SystemClock.uptimeMillis();
+        }
+    }
+
+    /**
+     * Tries to find a {@link TranslateAnimation} inside the {@code animation}.
+     *
+     * @return the found animation, {@code null} otherwise
+     */
+    private TranslateAnimation findTranslateAnimation(Animation animation) {
+        if (animation instanceof TranslateAnimation) {
+            return (TranslateAnimation) animation;
+        } else if (animation instanceof AnimationSet) {
+            AnimationSet set = (AnimationSet) animation;
+            for (int i = 0; i < set.getAnimations().size(); i++) {
+                Animation a = set.getAnimations().get(i);
+                if (a instanceof TranslateAnimation) {
+                    return (TranslateAnimation) a;
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Binary searches for a {@code t} such that there exists a {@code -0.01 < eps < 0.01} for which
+     * {@code interpolator(t + eps) > 0.99}.
+     */
+    private float findAlmostThereFraction(Interpolator interpolator) {
+        float val = 0.5f;
+        float adj = 0.25f;
+        while (adj >= 0.01f) {
+            if (interpolator.getInterpolation(val) < 0.99f) {
+                val += adj;
+            } else {
+                val -= adj;
+            }
+            adj /= 2;
+        }
+        return val;
+    }
+}