Merge "Split status bar icon management into separate class"

4 files changed, 280 insertions, 246 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index eaec8fa..dda52d4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -507,7 +507,6 @@ public abstract class BaseStatusBar extends SystemUI implements
                 ServiceManager.checkService(DreamService.DREAM_SERVICE));
         mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
 
-        mSettingsObserver.onChange(false); // set up
         mContext.getContentResolver().registerContentObserver(
                 Settings.Global.getUriFor(Settings.Global.DEVICE_PROVISIONED), true,
                 mSettingsObserver);
@@ -557,6 +556,7 @@ public abstract class BaseStatusBar extends SystemUI implements
 
         createAndAddWindows();
 
+        mSettingsObserver.onChange(false); // set up
         disable(switches[0], false /* animate */);
         setSystemUiVisibility(switches[1], 0xffffffff);
         topAppWindowChanged(switches[2] != 0);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
index 20dd3e7..d02cd17 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
@@ -147,6 +147,9 @@ public class StatusBarIconView extends AnimatedImageView {
     }
 
     private boolean updateDrawable(boolean withClear) {
+        if (mIcon == null) {
+            return false;
+        }
         Drawable drawable = getIcon(mIcon);
         if (drawable == null) {
             Log.w(TAG, "No icon for slot " + mSlot);
@@ -226,6 +229,12 @@ public class StatusBarIconView extends AnimatedImageView {
     }
 
     @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+        updateDrawable();
+    }
+
+    @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index d286441..4ffe9b1 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -32,7 +32,6 @@ import static com.android.systemui.statusbar.phone.BarTransitions.MODE_WARNING;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.TimeInterpolator;
 import android.annotation.NonNull;
 import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
@@ -82,14 +81,12 @@ import android.provider.Settings;
 import android.service.notification.NotificationListenerService;
 import android.service.notification.NotificationListenerService.RankingMap;
 import android.service.notification.StatusBarNotification;
-import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.DisplayMetrics;
 import android.util.EventLog;
 import android.util.Log;
 import android.view.Display;
 import android.view.Gravity;
-import android.view.HardwareCanvas;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
@@ -97,23 +94,17 @@ import android.view.VelocityTracker;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
-import android.view.ViewPropertyAnimator;
 import android.view.ViewStub;
-import android.view.ViewTreeObserver;
 import android.view.WindowManager;
 import android.view.WindowManagerGlobal;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.animation.AccelerateDecelerateInterpolator;
 import android.view.animation.AccelerateInterpolator;
-import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
-import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.view.animation.LinearInterpolator;
 import android.view.animation.PathInterpolator;
-import android.widget.FrameLayout;
 import android.widget.ImageView;
-import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.android.internal.statusbar.StatusBarIcon;
@@ -172,7 +163,6 @@ import com.android.systemui.statusbar.policy.UserSwitcherController;
 import com.android.systemui.statusbar.policy.ZenModeController;
 import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
 import com.android.systemui.statusbar.stack.NotificationStackScrollLayout.OnChildLocationsChangedListener;
-import com.android.systemui.statusbar.stack.StackScrollAlgorithm;
 import com.android.systemui.statusbar.stack.StackScrollState.ViewState;
 import com.android.systemui.volume.VolumeComponent;
 
@@ -212,9 +202,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
 
     private static final boolean CLOSE_PANEL_WHEN_EMPTIED = true;
 
-    private static final int NOTIFICATION_PRIORITY_MULTIPLIER = 10; // see NotificationManagerService
-    private static final int HIDE_ICONS_BELOW_SCORE = Notification.PRIORITY_LOW * NOTIFICATION_PRIORITY_MULTIPLIER;
-
     private static final int STATUS_OR_NAV_TRANSIENT =
             View.STATUS_BAR_TRANSIENT | View.NAVIGATION_BAR_TRANSIENT;
     private static final long AUTOHIDE_TIMEOUT_MS = 3000;
@@ -261,8 +248,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     AccessibilityController mAccessibilityController;
 
     int mNaturalBarHeight = -1;
-    int mIconSize = -1;
-    int mIconHPadding = -1;
+
     Display mDisplay;
     Point mCurrentDisplaySize = new Point();
 
@@ -278,23 +264,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     int mPixelFormat;
     Object mQueueLock = new Object();
 
-    // viewgroup containing the normal contents of the statusbar
-    LinearLayout mStatusBarContents;
-
-    // right-hand icons
-    LinearLayout mSystemIconArea;
-    LinearLayout mSystemIcons;
-
-    // left-hand icons
-    LinearLayout mStatusIcons;
-    LinearLayout mStatusIconsKeyguard;
-
-    // the icons themselves
-    IconMerger mNotificationIcons;
-    View mNotificationIconArea;
-
-    // [+>
-    View mMoreIcon;
+    StatusBarIconController mIconController;
 
     // expanded notifications
     NotificationPanelView mNotificationPanel; // the sliding/resizing panel within the notification window
@@ -419,7 +389,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     private boolean mDozing;
     private boolean mScrimSrcModeEnabled;
 
-    private Interpolator mLinearOutSlowIn;
     private Interpolator mLinearInterpolator = new LinearInterpolator();
     private Interpolator mBackdropInterpolator = new AccelerateDecelerateInterpolator();
     public static final Interpolator ALPHA_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
@@ -610,8 +579,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         updateDisplaySize(); // populates mDisplayMetrics
         updateResources();
 
-        mIconSize = res.getDimensionPixelSize(com.android.internal.R.dimen.status_bar_icon_size);
-
         mStatusBarWindow = (StatusBarWindowView) View.inflate(context,
                 R.layout.super_status_bar, null);
         mStatusBarWindow.mService = this;
@@ -689,15 +656,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         // figure out which pixel-format to use for the status bar.
         mPixelFormat = PixelFormat.OPAQUE;
 
-        mSystemIconArea = (LinearLayout) mStatusBarView.findViewById(R.id.system_icon_area);
-        mSystemIcons = (LinearLayout) mStatusBarView.findViewById(R.id.system_icons);
-        mStatusIcons = (LinearLayout)mStatusBarView.findViewById(R.id.statusIcons);
-        mNotificationIconArea = mStatusBarView.findViewById(R.id.notification_icon_area_inner);
-        mNotificationIcons = (IconMerger)mStatusBarView.findViewById(R.id.notificationIcons);
-        mMoreIcon = mStatusBarView.findViewById(R.id.moreIcon);
-        mNotificationIcons.setOverflowIndicator(mMoreIcon);
-        mStatusBarContents = (LinearLayout)mStatusBarView.findViewById(R.id.status_bar_contents);
-
         mStackScroller = (NotificationStackScrollLayout) mStatusBarWindow.findViewById(
                 R.id.notification_stack_scroller);
         mStackScroller.setLongPressListener(getNotificationLongClicker());
@@ -741,7 +699,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         mHeader = (StatusBarHeaderView) mStatusBarWindow.findViewById(R.id.header);
         mHeader.setActivityStarter(this);
         mKeyguardStatusBar = (KeyguardStatusBarView) mStatusBarWindow.findViewById(R.id.keyguard_header);
-        mStatusIconsKeyguard = (LinearLayout) mKeyguardStatusBar.findViewById(R.id.statusIcons);
         mKeyguardStatusView = mStatusBarWindow.findViewById(R.id.keyguard_status_view);
         mKeyguardBottomArea =
                 (KeyguardBottomAreaView) mStatusBarWindow.findViewById(R.id.keyguard_bottom_area);
@@ -756,6 +713,9 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         // set the inital view visibility
         setAreThereNotifications();
 
+        mIconController = new StatusBarIconController(
+                mContext, mStatusBarView, mKeyguardStatusBar, this);
+
         // Background thread for any controllers that need it.
         mHandlerThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND);
         mHandlerThread.start();
@@ -1177,49 +1137,17 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         mWindowManager.removeView(mHeadsUpNotificationView);
     }
 
-    public void refreshAllStatusBarIcons() {
-        refreshAllIconsForLayout(mStatusIcons);
-        refreshAllIconsForLayout(mStatusIconsKeyguard);
-        refreshAllIconsForLayout(mNotificationIcons);
-    }
-
-    private void refreshAllIconsForLayout(LinearLayout ll) {
-        final int count = ll.getChildCount();
-        for (int n = 0; n < count; n++) {
-            View child = ll.getChildAt(n);
-            if (child instanceof StatusBarIconView) {
-                ((StatusBarIconView) child).updateDrawable();
-            }
-        }
-    }
-
     public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon) {
-        if (SPEW) Log.d(TAG, "addIcon slot=" + slot + " index=" + index + " viewIndex=" + viewIndex
-                + " icon=" + icon);
-        StatusBarIconView view = new StatusBarIconView(mContext, slot, null);
-        view.set(icon);
-        mStatusIcons.addView(view, viewIndex, new LinearLayout.LayoutParams(
-                LayoutParams.WRAP_CONTENT, mIconSize));
-        view = new StatusBarIconView(mContext, slot, null);
-        view.set(icon);
-        mStatusIconsKeyguard.addView(view, viewIndex, new LinearLayout.LayoutParams(
-                LayoutParams.WRAP_CONTENT, mIconSize));
+        mIconController.addSystemIcon(slot, index, viewIndex, icon);
     }
 
     public void updateIcon(String slot, int index, int viewIndex,
             StatusBarIcon old, StatusBarIcon icon) {
-        if (SPEW) Log.d(TAG, "updateIcon slot=" + slot + " index=" + index + " viewIndex=" + viewIndex
-                + " old=" + old + " icon=" + icon);
-        StatusBarIconView view = (StatusBarIconView) mStatusIcons.getChildAt(viewIndex);
-        view.set(icon);
-        view = (StatusBarIconView) mStatusIconsKeyguard.getChildAt(viewIndex);
-        view.set(icon);
+        mIconController.updateSystemIcon(slot, index, viewIndex, old, icon);
     }
 
     public void removeIcon(String slot, int index, int viewIndex) {
-        if (SPEW) Log.d(TAG, "removeIcon slot=" + slot + " index=" + index + " viewIndex=" + viewIndex);
-        mStatusIcons.removeViewAt(viewIndex);
-        mStatusIconsKeyguard.removeViewAt(viewIndex);
+        mIconController.removeSystemIcon(slot, index, viewIndex);
     }
 
     public UserHandle getCurrentUserHandle() {
@@ -1339,7 +1267,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         if (mNavigationBarView != null) {
             mNavigationBarView.setLayoutDirection(layoutDirection);
         }
-        refreshAllStatusBarIcons();
     }
 
     private void updateShowSearchHoldoff() {
@@ -1480,69 +1407,10 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
 
     @Override
     protected void updateNotifications() {
-        // TODO: Move this into updateNotificationIcons()?
-        if (mNotificationIcons == null) return;
-
         mNotificationData.filterAndSort();
 
         updateNotificationShade();
-        updateNotificationIcons();
-    }
-
-    private void updateNotificationIcons() {
-        final LinearLayout.LayoutParams params
-            = new LinearLayout.LayoutParams(mIconSize + 2*mIconHPadding, mNaturalBarHeight);
-
-        ArrayList<Entry> activeNotifications = mNotificationData.getActiveNotifications();
-        final int N = activeNotifications.size();
-        ArrayList<StatusBarIconView> toShow = new ArrayList<>(N);
-
-        // Filter out notifications with low scores.
-        for (int i = 0; i < N; i++) {
-            Entry ent = activeNotifications.get(i);
-            if (ent.notification.getScore() < HIDE_ICONS_BELOW_SCORE &&
-                    !NotificationData.showNotificationEvenIfUnprovisioned(ent.notification)) {
-                continue;
-            }
-            toShow.add(ent.icon);
-        }
-
-        if (DEBUG) {
-            Log.d(TAG, "refreshing icons: " + toShow.size() +
-                    " notifications, mNotificationIcons=" + mNotificationIcons);
-        }
-
-        ArrayList<View> toRemove = new ArrayList<View>();
-        for (int i=0; i<mNotificationIcons.getChildCount(); i++) {
-            View child = mNotificationIcons.getChildAt(i);
-            if (!toShow.contains(child)) {
-                toRemove.add(child);
-            }
-        }
-
-        final int toRemoveCount = toRemove.size();
-        for (int i = 0; i < toRemoveCount; i++) {
-            mNotificationIcons.removeView(toRemove.get(i));
-        }
-
-        for (int i=0; i<toShow.size(); i++) {
-            View v = toShow.get(i);
-            if (v.getParent() == null) {
-                mNotificationIcons.addView(v, i, params);
-            }
-        }
-
-        // Resort notification icons
-        final int childCount = mNotificationIcons.getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            View actual = mNotificationIcons.getChildAt(i);
-            StatusBarIconView expected = toShow.get(i);
-            if (actual == expected) {
-                continue;
-            }
-            mNotificationIcons.removeView(expected);
-            mNotificationIcons.addView(expected, i);
-        }
+        mIconController.updateNotificationIcons(mNotificationData);
     }
 
     @Override
@@ -1826,14 +1694,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
     }
 
-    public void showClock(boolean show) {
-        if (mStatusBarView == null) return;
-        View clock = mStatusBarView.findViewById(R.id.clock);
-        if (clock != null) {
-            clock.setVisibility(show ? View.VISIBLE : View.GONE);
-        }
-    }
-
     private int adjustDisableFlags(int state) {
         if (!mLaunchTransitionFadingAway
                 && (mExpandedVisible || mBouncerShowing || mWaitingForKeyguardExit)) {
@@ -1882,17 +1742,16 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         Log.d(TAG, flagdbg.toString());
 
         if ((diff & StatusBarManager.DISABLE_SYSTEM_INFO) != 0) {
-            mSystemIconArea.animate().cancel();
             if ((state & StatusBarManager.DISABLE_SYSTEM_INFO) != 0) {
-                animateStatusBarHide(mSystemIconArea, animate);
+                mIconController.hideSystemIconArea(animate);
             } else {
-                animateStatusBarShow(mSystemIconArea, animate);
+                mIconController.showSystemIconArea(animate);
             }
         }
 
         if ((diff & StatusBarManager.DISABLE_CLOCK) != 0) {
-            boolean show = (state & StatusBarManager.DISABLE_CLOCK) == 0;
-            showClock(show);
+            boolean visible = (state & StatusBarManager.DISABLE_CLOCK) == 0;
+            mIconController.setClockVisibility(visible);
         }
         if ((diff & StatusBarManager.DISABLE_EXPAND) != 0) {
             if ((state & StatusBarManager.DISABLE_EXPAND) != 0) {
@@ -1916,9 +1775,9 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
 
         if ((diff & StatusBarManager.DISABLE_NOTIFICATION_ICONS) != 0) {
             if ((state & StatusBarManager.DISABLE_NOTIFICATION_ICONS) != 0) {
-                animateStatusBarHide(mNotificationIconArea, animate);
+                mIconController.hideNotificationIconArea(animate);
             } else {
-                animateStatusBarShow(mNotificationIconArea, animate);
+                mIconController.showNotificationIconArea(animate);
             }
         }
 
@@ -1929,60 +1788,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
     }
 
-    /**
-     * Animates {@code v}, a view that is part of the status bar, out.
-     */
-    private void animateStatusBarHide(final View v, boolean animate) {
-        v.animate().cancel();
-        if (!animate) {
-            v.setAlpha(0f);
-            v.setVisibility(View.INVISIBLE);
-            return;
-        }
-        v.animate()
-                .alpha(0f)
-                .setDuration(160)
-                .setStartDelay(0)
-                .setInterpolator(ALPHA_OUT)
-                .withEndAction(new Runnable() {
-                    @Override
-                    public void run() {
-                        v.setVisibility(View.INVISIBLE);
-                    }
-                });
-    }
-
-    /**
-     * Animates {@code v}, a view that is part of the status bar, in.
-     */
-    private void animateStatusBarShow(View v, boolean animate) {
-        v.animate().cancel();
-        v.setVisibility(View.VISIBLE);
-        if (!animate) {
-            v.setAlpha(1f);
-            return;
-        }
-        v.animate()
-                .alpha(1f)
-                .setDuration(320)
-                .setInterpolator(ALPHA_IN)
-                .setStartDelay(50)
-
-                // We need to clean up any pending end action from animateStatusBarHide if we call
-                // both hide and show in the same frame before the animation actually gets started.
-                // cancel() doesn't really remove the end action.
-                .withEndAction(null);
-
-        // Synchronize the motion with the Keyguard fading if necessary.
-        if (mKeyguardFadingAway) {
-            v.animate()
-                    .setDuration(mKeyguardFadingAwayDuration)
-                    .setInterpolator(mLinearOutSlowIn)
-                    .setStartDelay(mKeyguardFadingAwayDelay)
-                    .start();
-        }
-    }
-
     @Override
     protected BaseStatusBar.H createHandler() {
         return new PhoneStatusBar.H();
@@ -2667,12 +2472,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
                 mNotificationData.dump(pw, "  ");
             }
 
-            int N = mStatusIcons.getChildCount();
-            pw.println("  system icons: " + N);
-            for (int i=0; i<N; i++) {
-                StatusBarIconView ic = (StatusBarIconView) mStatusIcons.getChildAt(i);
-                pw.println("    [" + i + "] icon=" + ic);
-            }
+            mIconController.dump(pw);
 
             if (false) {
                 pw.println("see the logcat for a dump of the views we have created.");
@@ -2871,10 +2671,10 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         updateDisplaySize(); // populates mDisplayMetrics
 
         updateResources();
-        updateClockSize();
         repositionNavigationBar();
         updateShowSearchHoldoff();
         updateRowStates();
+        mIconController.updateResources();
         mScreenPinningRequest.onConfigurationChanged();
     }
 
@@ -2900,8 +2700,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         mUserSetupObserver.onChange(false);
         mContext.getContentResolver().registerContentObserver(
                 Settings.Secure.getUriFor(Settings.Secure.USER_SETUP_COMPLETE), true,
-                mUserSetupObserver,
-                mCurrentUserId);
+                mUserSetupObserver, mCurrentUserId);
     }
 
     private void setHeadsUpVisibility(boolean vis) {
@@ -2931,8 +2730,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
 
         loadDimens();
-        mLinearOutSlowIn = AnimationUtils.loadInterpolator(
-                mContext, android.R.interpolator.linear_out_slow_in);
 
         if (mNotificationPanel != null) {
             mNotificationPanel.updateResources();
@@ -2945,31 +2742,12 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
     }
 
-    private void updateClockSize() {
-        if (mStatusBarView == null) return;
-        TextView clock = (TextView) mStatusBarView.findViewById(R.id.clock);
-        if (clock != null) {
-            FontSizeUtils.updateFontSize(clock, R.dimen.status_bar_clock_size);
-        }
-    }
     protected void loadDimens() {
         final Resources res = mContext.getResources();
 
         mNaturalBarHeight = res.getDimensionPixelSize(
                 com.android.internal.R.dimen.status_bar_height);
 
-        int newIconSize = res.getDimensionPixelSize(
-            com.android.internal.R.dimen.status_bar_icon_size);
-        int newIconHPadding = res.getDimensionPixelSize(
-            R.dimen.status_bar_icon_padding);
-
-        if (newIconHPadding != mIconHPadding || newIconSize != mIconSize) {
-//            Log.d(TAG, "size=" + newIconSize + " padding=" + newIconHPadding);
-            mIconHPadding = newIconHPadding;
-            mIconSize = newIconSize;
-            //reloadAllNotificationIcons(); // reload the tray
-        }
-
         mEdgeBorder = res.getDimensionPixelSize(R.dimen.status_bar_edge_ignore);
 
         mHeadsUpNotificationDecay = res.getInteger(R.integer.heads_up_notification_decay);
@@ -3178,7 +2956,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
 
     private boolean mDemoModeAllowed;
     private boolean mDemoMode;
-    private DemoStatusIcons mDemoStatusIcons;
 
     @Override
     public void dispatchDemoCommand(String command, Bundle args) {
@@ -3207,10 +2984,8 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
             dispatchDemoCommandToView(command, args, R.id.battery);
         }
         if (modeChange || command.equals(COMMAND_STATUS)) {
-            if (mDemoStatusIcons == null) {
-                mDemoStatusIcons = new DemoStatusIcons(mStatusIcons, mIconSize);
-            }
-            mDemoStatusIcons.dispatchDemoCommand(command, args);
+            mIconController.dispatchDemoCommand(command, args);
+
         }
         if (mNetworkController != null && (modeChange || command.equals(COMMAND_NETWORK))) {
             mNetworkController.dispatchDemoCommand(command, args);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java
new file mode 100644
index 0000000..6147e30
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java
@@ -0,0 +1,250 @@
+/*
+ * 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.systemui.statusbar.phone;
+
+import android.app.Notification;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.AnimationUtils;
+import android.view.animation.Interpolator;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.android.internal.statusbar.StatusBarIcon;
+import com.android.systemui.FontSizeUtils;
+import com.android.systemui.R;
+import com.android.systemui.statusbar.NotificationData;
+import com.android.systemui.statusbar.StatusBarIconView;
+
+import java.io.PrintWriter;
+import java.util.ArrayList;
+
+/**
+ * Controls everything regarding the icons in the status bar and on Keyguard, including, but not
+ * limited to: notification icons, signal cluster, additional status icons, and clock in the status
+ * bar.
+ */
+public class StatusBarIconController {
+
+    private Context mContext;
+    private PhoneStatusBar mPhoneStatusBar;
+    private Interpolator mLinearOutSlowIn;
+    private DemoStatusIcons mDemoStatusIcons;
+
+    private LinearLayout mSystemIconArea;
+    private LinearLayout mStatusIcons;
+    private LinearLayout mStatusIconsKeyguard;
+    private IconMerger mNotificationIcons;
+    private View mNotificationIconArea;
+    private TextView mClock;
+
+    private int mIconSize;
+    private int mIconHPadding;
+
+    public StatusBarIconController(Context context, View statusBar, View keyguardStatusBar,
+            PhoneStatusBar phoneStatusBar) {
+        mContext = context;
+        mPhoneStatusBar = phoneStatusBar;
+        mSystemIconArea = (LinearLayout) statusBar.findViewById(R.id.system_icon_area);
+        mStatusIcons = (LinearLayout) statusBar.findViewById(R.id.statusIcons);
+        mNotificationIconArea = statusBar.findViewById(R.id.notification_icon_area_inner);
+        mNotificationIcons = (IconMerger) statusBar.findViewById(R.id.notificationIcons);
+        View moreIcon = statusBar.findViewById(R.id.moreIcon);
+        mNotificationIcons.setOverflowIndicator(moreIcon);
+        mStatusIconsKeyguard = (LinearLayout) keyguardStatusBar.findViewById(R.id.statusIcons);
+        mClock = (TextView) statusBar.findViewById(R.id.clock);
+        mLinearOutSlowIn = AnimationUtils.loadInterpolator(mContext,
+                android.R.interpolator.linear_out_slow_in);
+        updateResources();
+    }
+
+    public void updateResources() {
+        mIconSize = mContext.getResources().getDimensionPixelSize(
+                com.android.internal.R.dimen.status_bar_icon_size);
+        mIconHPadding = mContext.getResources().getDimensionPixelSize(
+                R.dimen.status_bar_icon_padding);
+        FontSizeUtils.updateFontSize(mClock, R.dimen.status_bar_clock_size);
+    }
+
+    public void addSystemIcon(String slot, int index, int viewIndex, StatusBarIcon icon) {
+        StatusBarIconView view = new StatusBarIconView(mContext, slot, null);
+        view.set(icon);
+        mStatusIcons.addView(view, viewIndex, new LinearLayout.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT, mIconSize));
+        view = new StatusBarIconView(mContext, slot, null);
+        view.set(icon);
+        mStatusIconsKeyguard.addView(view, viewIndex, new LinearLayout.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT, mIconSize));
+    }
+
+    public void updateSystemIcon(String slot, int index, int viewIndex,
+            StatusBarIcon old, StatusBarIcon icon) {
+        StatusBarIconView view = (StatusBarIconView) mStatusIcons.getChildAt(viewIndex);
+        view.set(icon);
+        view = (StatusBarIconView) mStatusIconsKeyguard.getChildAt(viewIndex);
+        view.set(icon);
+    }
+
+    public void removeSystemIcon(String slot, int index, int viewIndex) {
+        mStatusIcons.removeViewAt(viewIndex);
+        mStatusIconsKeyguard.removeViewAt(viewIndex);
+    }
+
+    public void updateNotificationIcons(NotificationData notificationData) {
+        final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
+                mIconSize + 2*mIconHPadding, mPhoneStatusBar.getStatusBarHeight());
+
+        ArrayList<NotificationData.Entry> activeNotifications =
+                notificationData.getActiveNotifications();
+        final int N = activeNotifications.size();
+        ArrayList<StatusBarIconView> toShow = new ArrayList<>(N);
+
+        // Filter out ambient notifications.
+        for (int i = 0; i < N; i++) {
+            NotificationData.Entry ent = activeNotifications.get(i);
+            if (notificationData.isAmbient(ent.key)
+                    && !NotificationData.showNotificationEvenIfUnprovisioned(ent.notification)) {
+                continue;
+            }
+            toShow.add(ent.icon);
+        }
+
+        ArrayList<View> toRemove = new ArrayList<>();
+        for (int i=0; i<mNotificationIcons.getChildCount(); i++) {
+            View child = mNotificationIcons.getChildAt(i);
+            if (!toShow.contains(child)) {
+                toRemove.add(child);
+            }
+        }
+
+        final int toRemoveCount = toRemove.size();
+        for (int i = 0; i < toRemoveCount; i++) {
+            mNotificationIcons.removeView(toRemove.get(i));
+        }
+
+        for (int i=0; i<toShow.size(); i++) {
+            View v = toShow.get(i);
+            if (v.getParent() == null) {
+                mNotificationIcons.addView(v, i, params);
+            }
+        }
+
+        // Resort notification icons
+        final int childCount = mNotificationIcons.getChildCount();
+        for (int i = 0; i < childCount; i++) {
+            View actual = mNotificationIcons.getChildAt(i);
+            StatusBarIconView expected = toShow.get(i);
+            if (actual == expected) {
+                continue;
+            }
+            mNotificationIcons.removeView(expected);
+            mNotificationIcons.addView(expected, i);
+        }
+    }
+
+    public void hideSystemIconArea(boolean animate) {
+        animateHide(mSystemIconArea, animate);
+    }
+
+    public void showSystemIconArea(boolean animate) {
+        animateShow(mSystemIconArea, animate);
+    }
+
+    public void hideNotificationIconArea(boolean animate) {
+        animateHide(mNotificationIconArea, animate);
+    }
+
+    public void showNotificationIconArea(boolean animate) {
+        animateShow(mNotificationIconArea, animate);
+    }
+
+    public void setClockVisibility(boolean visible) {
+        mClock.setVisibility(visible ? View.VISIBLE : View.GONE);
+    }
+
+    public void dump(PrintWriter pw) {
+        int N = mStatusIcons.getChildCount();
+        pw.println("  system icons: " + N);
+        for (int i=0; i<N; i++) {
+            StatusBarIconView ic = (StatusBarIconView) mStatusIcons.getChildAt(i);
+            pw.println("    [" + i + "] icon=" + ic);
+        }
+    }
+
+    public void dispatchDemoCommand(String command, Bundle args) {
+        if (mDemoStatusIcons == null) {
+            mDemoStatusIcons = new DemoStatusIcons(mStatusIcons, mIconSize);
+        }
+        mDemoStatusIcons.dispatchDemoCommand(command, args);
+    }
+
+    /**
+     * Hides a view.
+     */
+    private void animateHide(final View v, boolean animate) {
+        v.animate().cancel();
+        if (!animate) {
+            v.setAlpha(0f);
+            v.setVisibility(View.INVISIBLE);
+            return;
+        }
+        v.animate()
+                .alpha(0f)
+                .setDuration(160)
+                .setStartDelay(0)
+                .setInterpolator(PhoneStatusBar.ALPHA_OUT)
+                .withEndAction(new Runnable() {
+                    @Override
+                    public void run() {
+                        v.setVisibility(View.INVISIBLE);
+                    }
+                });
+    }
+
+    /**
+     * Shows a view, and synchronizes the animation with Keyguard exit animations, if applicable.
+     */
+    private void animateShow(View v, boolean animate) {
+        v.animate().cancel();
+        v.setVisibility(View.VISIBLE);
+        if (!animate) {
+            v.setAlpha(1f);
+            return;
+        }
+        v.animate()
+                .alpha(1f)
+                .setDuration(320)
+                .setInterpolator(PhoneStatusBar.ALPHA_IN)
+                .setStartDelay(50)
+
+                // We need to clean up any pending end action from animateHide if we call
+                // both hide and show in the same frame before the animation actually gets started.
+                // cancel() doesn't really remove the end action.
+                .withEndAction(null);
+
+        // Synchronize the motion with the Keyguard fading if necessary.
+        if (mPhoneStatusBar.isKeyguardFadingAway()) {
+            v.animate()
+                    .setDuration(mPhoneStatusBar.getKeyguardFadingAwayDuration())
+                    .setInterpolator(mLinearOutSlowIn)
+                    .setStartDelay(mPhoneStatusBar.getKeyguardFadingAwayDelay())
+                    .start();
+        }
+    }
+}