13 files changed, 393 insertions, 47 deletions

diff --git a/InCallUI/res/drawable-hdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-hdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..7eda84ca5
--- /dev/null
+++ b/InCallUI/res/drawable-hdpi/stat_sys_phone_call.png
diff --git a/InCallUI/res/drawable-ldrtl-hdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-ldrtl-hdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..e0f33f88c
--- /dev/null
+++ b/InCallUI/res/drawable-ldrtl-hdpi/stat_sys_phone_call.png
diff --git a/InCallUI/res/drawable-ldrtl-mdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-ldrtl-mdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..d771d87bf
--- /dev/null
+++ b/InCallUI/res/drawable-ldrtl-mdpi/stat_sys_phone_call.png
diff --git a/InCallUI/res/drawable-ldrtl-xhdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-ldrtl-xhdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..86af9c202
--- /dev/null
+++ b/InCallUI/res/drawable-ldrtl-xhdpi/stat_sys_phone_call.png
diff --git a/InCallUI/res/drawable-mdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-mdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..70a4bbe71
--- /dev/null
+++ b/InCallUI/res/drawable-mdpi/stat_sys_phone_call.png
diff --git a/InCallUI/res/drawable-xhdpi/stat_sys_phone_call.png b/InCallUI/res/drawable-xhdpi/stat_sys_phone_call.png
new file mode 100644
index 000000000..1bb434076
--- /dev/null
+++ b/InCallUI/res/drawable-xhdpi/stat_sys_phone_call.png
diff --git a/InCallUI/src/com/android/incallui/CallButtonPresenter.java b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
index 014f8f8ae..60ab7bbf4 100644
--- a/InCallUI/src/com/android/incallui/CallButtonPresenter.java
+++ b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
@@ -49,7 +49,7 @@ public class CallButtonPresenter extends Presenter<CallButtonPresenter.CallButto
         getUi().setVisible(state == InCallState.INCALL);
 
         if (state == InCallState.INCALL) {
-            mCall = callList.getActiveCall();
+            mCall = callList.getActiveOrBackgroundCall();
         } else {
             mCall = null;
         }
@@ -75,11 +75,15 @@ public class CallButtonPresenter extends Presenter<CallButtonPresenter.CallButto
     }
 
     public void muteClicked(boolean checked) {
+        Logger.d(this, "turning on mute: " + checked);
+
         CallCommandClient.getInstance().mute(checked);
         getUi().setMute(checked);
     }
 
     public void speakerClicked(boolean checked) {
+        Logger.d(this, "turning on speaker: " + checked);
+
         CallCommandClient.getInstance().turnSpeakerOn(checked);
         getUi().setSpeaker(checked);
     }
@@ -87,6 +91,8 @@ public class CallButtonPresenter extends Presenter<CallButtonPresenter.CallButto
     public void holdClicked(boolean checked) {
         Preconditions.checkNotNull(mCall);
 
+        Logger.d(this, "holding: " + mCall.getCallId());
+
         // TODO(klp): use appropriate hold callId.
         CallCommandClient.getInstance().hold(mCall.getCallId(), checked);
         getUi().setHold(checked);
diff --git a/InCallUI/src/com/android/incallui/CallCardPresenter.java b/InCallUI/src/com/android/incallui/CallCardPresenter.java
index 5f1f3b747..04a43eae1 100644
--- a/InCallUI/src/com/android/incallui/CallCardPresenter.java
+++ b/InCallUI/src/com/android/incallui/CallCardPresenter.java
@@ -43,7 +43,12 @@ public class CallCardPresenter extends Presenter<CallCardPresenter.CallCardUi>
             primary = callList.getIncomingCall();
         } else if (state == InCallState.INCALL) {
             primary = callList.getActiveCall();
-            secondary = callList.getBackgroundCall();
+            if (primary != null) {
+                secondary = callList.getBackgroundCall();
+            } else {
+                primary = callList.getBackgroundCall();
+                secondary = callList.getSecondBackgroundCall();
+            }
         }
 
         Logger.d(this, "Primary call: " + primary);
diff --git a/InCallUI/src/com/android/incallui/CallHandlerService.java b/InCallUI/src/com/android/incallui/CallHandlerService.java
index ad4772976..dcba7d6f9 100644
--- a/InCallUI/src/com/android/incallui/CallHandlerService.java
+++ b/InCallUI/src/com/android/incallui/CallHandlerService.java
@@ -46,9 +46,7 @@ public class CallHandlerService extends Service {
 
         mCallList = CallList.getInstance();
         mMainHandler = new MainHandler();
-        mInCallPresenter = InCallPresenter.getInstance();
-
-        mInCallPresenter.init(this);
+        mInCallPresenter = InCallPresenter.init(this);
     }
 
     @Override
diff --git a/InCallUI/src/com/android/incallui/CallList.java b/InCallUI/src/com/android/incallui/CallList.java
index 17e719e7c..c16c53df0 100644
--- a/InCallUI/src/com/android/incallui/CallList.java
+++ b/InCallUI/src/com/android/incallui/CallList.java
@@ -128,8 +128,25 @@ public class CallList {
         return getFirstCallWithState(Call.State.ONHOLD);
     }
 
+    public Call getSecondBackgroundCall() {
+        return getCallWithState(Call.State.ONHOLD, 1);
+    }
+
+    public Call getActiveOrBackgroundCall() {
+        Call call = getActiveCall();
+        if (call == null) {
+            call = getBackgroundCall();
+        }
+        return call;
+    }
+
     public Call getIncomingCall() {
-        return getFirstCallWithState(Call.State.INCOMING);
+        Call call = getFirstCallWithState(Call.State.INCOMING);
+        if (call == null) {
+            call = getFirstCallWithState(Call.State.CALL_WAITING);
+        }
+
+        return call;
     }
 
     public boolean existsLiveCall() {
@@ -145,11 +162,24 @@ public class CallList {
      * Returns first call found in the call map with the specified state.
      */
     public Call getFirstCallWithState(int state) {
+        return getCallWithState(state, 0);
+    }
+
+    /**
+     * Returns the [position]th call found in the call map with the specified state.
+     * TODO(klp): Improve this logic to sort by call time.
+     */
+    public Call getCallWithState(int state, int positionToFind) {
         Call retval = null;
+        int position = 0;
         for (Call call : mCallMap.values()) {
             if (call.getState() == state) {
-                retval = call;
-                break;
+                if (position >= positionToFind) {
+                    retval = call;
+                    break;
+                } else {
+                    position++;
+                }
             }
         }
 
diff --git a/InCallUI/src/com/android/incallui/InCallActivity.java b/InCallUI/src/com/android/incallui/InCallActivity.java
index 89450c534..9eb54ee5e 100644
--- a/InCallUI/src/com/android/incallui/InCallActivity.java
+++ b/InCallUI/src/com/android/incallui/InCallActivity.java
@@ -101,6 +101,8 @@ public class InCallActivity extends Activity {
     @Override
     public void finish() {
         Logger.d(this, "finish()...");
+        tearDownPresenters();
+
         super.finish();
 
         // TODO(klp): Actually finish the activity for now.  Revisit performance implications of
@@ -220,6 +222,14 @@ public class InCallActivity extends Activity {
         mainPresenter.setActivity(this);
     }
 
+    private void tearDownPresenters() {
+        InCallPresenter mainPresenter = InCallPresenter.getInstance();
+
+        mainPresenter.removeListener(mCallButtonFragment.getPresenter());
+        mainPresenter.removeListener(mCallCardFragment.getPresenter());
+        mainPresenter.removeListener(mAnswerFragment.getPresenter());
+    }
+
     private void toast(String text) {
         final Toast toast = Toast.makeText(this, text, Toast.LENGTH_SHORT);
 
diff --git a/InCallUI/src/com/android/incallui/InCallPresenter.java b/InCallUI/src/com/android/incallui/InCallPresenter.java
index 118c030c2..47d2d69c8 100644
--- a/InCallUI/src/com/android/incallui/InCallPresenter.java
+++ b/InCallUI/src/com/android/incallui/InCallPresenter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006 The Android Open Source Project
+ * Copyright (C) 2013 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.
@@ -22,6 +22,8 @@ import com.google.common.base.Preconditions;
 import android.content.Context;
 import android.content.Intent;
 
+import com.android.services.telephony.common.Call;
+
 import java.util.Set;
 
 /**
@@ -31,35 +33,35 @@ import java.util.Set;
  * are disconnected.
  * Creates and manages the in-call state and provides a listener pattern for the presenters
  * that want to listen in on the in-call state changes.
+ * TODO(klp): This class has become more of a state machine at this point.  Consider renaming.
  */
 public class InCallPresenter implements CallList.Listener {
 
     private static InCallPresenter sInCallPresenter;
 
-    private Context mContext;
+    private final StatusBarNotifier mStatusBarNotifier;
+    private final Set<InCallStateListener> mListeners = Sets.newHashSet();
+
     private InCallState mInCallState = InCallState.HIDDEN;
     private InCallActivity mInCallActivity;
-    private final Set<InCallStateListener> mListeners = Sets.newHashSet();
 
-    public static synchronized InCallPresenter getInstance() {
-        if (sInCallPresenter == null) {
-            sInCallPresenter = new InCallPresenter();
-        }
+    public static InCallPresenter getInstance() {
+        Preconditions.checkNotNull(sInCallPresenter);
         return sInCallPresenter;
     }
 
-    public void init(Context context) {
-        Logger.i(this, "InCallPresenter initialized with context " + context);
-        Preconditions.checkState(mContext == null);
-
-        mContext = context;
-        CallList.getInstance().addListener(this);
+    public static synchronized InCallPresenter init(Context context) {
+        Preconditions.checkState(sInCallPresenter == null);
+        sInCallPresenter = new InCallPresenter(context);
+        return sInCallPresenter;
     }
 
     public void setActivity(InCallActivity inCallActivity) {
         mInCallActivity = inCallActivity;
         mInCallState = InCallState.STARTED;
 
+        Logger.d(this, "UI Initialized");
+
         // Since the UI just came up, imitate an update from the call list
         // to set the proper UI state.
         onCallListChange(CallList.getInstance());
@@ -75,21 +77,14 @@ public class InCallPresenter implements CallList.Listener {
     public void onCallListChange(CallList callList) {
         // fast fail if we are still starting up
         if (mInCallState == InCallState.STARTING_UP) {
+            Logger.d(this, "Already on STARTING_UP, ignoring until ready");
             return;
         }
 
-        InCallState newState = mInCallState;
-        if (callList.getIncomingCall() != null) {
-            newState = InCallState.INCOMING;
-        } else if (callList.getActiveCall() != null) {
-            newState = InCallState.INCALL;
-        } else {
-            newState = InCallState.HIDDEN;
-        }
-
+        InCallState newState = getPotentialStateFromCallList(callList);
         newState = startOrFinishUi(newState);
 
-        // finally set the new state before announcing it to the world
+        // Set the new state before announcing it to the world
         mInCallState = newState;
 
         // notify listeners of new state
@@ -99,6 +94,22 @@ public class InCallPresenter implements CallList.Listener {
         }
     }
 
+    /**
+     * Given the call list, return the state in which the in-call screen should be.
+     */
+    public InCallState getPotentialStateFromCallList(CallList callList) {
+        InCallState newState = InCallState.HIDDEN;
+
+        if (callList.getIncomingCall() != null) {
+            newState = InCallState.INCOMING;
+        } else if (callList.getActiveCall() != null ||
+                callList.getBackgroundCall() != null) {
+            newState = InCallState.INCALL;
+        }
+
+        return newState;
+    }
+
     public void addListener(InCallStateListener listener) {
         Preconditions.checkNotNull(listener);
         mListeners.add(listener);
@@ -115,26 +126,23 @@ public class InCallPresenter implements CallList.Listener {
      * It returns a potential new middle state (STARTING_UP) if appropriate.
      */
     private InCallState startOrFinishUi(InCallState newState) {
+        Logger.d(this, "startOrFInishUi: " + newState.toString());
+
         // TODO(klp): Consider a proper state machine implementation
 
         // if we need to show something, we need to start the Ui...
-        if (newState != InCallState.HIDDEN) {
-
-            // ...only if the UI is currently hidden
-            if (mInCallState == InCallState.HIDDEN) {
-                // TODO(klp): Update the flags to match the PhoneApp activity
-                final Intent intent = new Intent(mContext, InCallActivity.class);
-                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                mContext.startActivity(intent);
-
+        if (!newState.isHidden()) {
+
+            // When we attempt to go to any state from HIDDEN, it means that we need to create the
+            // entire UI. However, the StatusBarNotifier is in charge of starting up the Ui because
+            // it has special behavior in case we have to deal with an immersive foreground app.
+            // We set the STARTING_UP state to let StatusBarNotifier know it needs to start the
+            // the Ui.
+            if (mInCallState.isHidden()) {
                 return InCallState.STARTING_UP;
             }
 
-        // (newState == InCallState.HIDDEN)
-        // Else, we need to hide the UI...if it exists
         } else if (mInCallActivity != null) {
-            mListeners.clear();
-
             // Null out reference before we start end sequence
             InCallActivity temp = mInCallActivity;
             mInCallActivity = null;
@@ -148,7 +156,12 @@ public class InCallPresenter implements CallList.Listener {
     /**
      * Private constructor. Must use getInstance() to get this singleton.
      */
-    private InCallPresenter() {
+    private InCallPresenter(Context context) {
+        Preconditions.checkNotNull(context);
+
+        mStatusBarNotifier = new StatusBarNotifier(context);
+        addListener(mStatusBarNotifier);
+
         CallList.getInstance().addListener(this);
     }
 
@@ -156,12 +169,29 @@ public class InCallPresenter implements CallList.Listener {
      * All the main states of InCallActivity.
      */
     public enum InCallState {
+        // InCall Screen is off and there are no calls
         HIDDEN,
+
+        // In call is in the process of starting up
         STARTING_UP,
+
+        // In call has started but is not displaying any information
         STARTED,
+
+        // Incoming-call screen is up
         INCOMING,
-        INCALL
-    };
+
+        // In-call experience is showing
+        INCALL;
+
+        public boolean isIncoming() {
+            return (this == INCOMING);
+        }
+
+        public boolean isHidden() {
+            return (this == HIDDEN);
+        }
+    }
 
     /**
      * Interface implemented by classes that need to know about the InCall State.
diff --git a/InCallUI/src/com/android/incallui/StatusBarNotifier.java b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
new file mode 100644
index 000000000..617be2fac
--- /dev/null
+++ b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
@@ -0,0 +1,267 @@
+/*
+ * Copyright (C) 2013 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.incallui;
+
+import com.google.common.base.Preconditions;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+
+import com.android.incallui.InCallPresenter.InCallState;
+import com.android.services.telephony.common.Call;
+
+/**
+ * This class adds Notifications to the status bar for the in-call experience.
+ */
+public class StatusBarNotifier implements InCallPresenter.InCallStateListener {
+    // notification types
+    private static final int IN_CALL_NOTIFICATION = 1;
+
+    private final Context mContext;
+    private final NotificationManager mNotificationManager;
+
+    public StatusBarNotifier(Context context) {
+        Preconditions.checkNotNull(context);
+
+        mContext = context;
+        mNotificationManager =
+                (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
+    }
+
+    /**
+     * Creates notifications according to the state we receive from {@link InCallPresenter}.
+     */
+    @Override
+    public void onStateChange(InCallState state, CallList callList) {
+
+        if (InCallState.STARTING_UP == state) {
+            // TODO: This method needs to move somewhere more appropriate for sharing
+            InCallState newState = InCallPresenter.getInstance()
+                    .getPotentialStateFromCallList(callList);
+
+            updateNotificationAndLaunchIncomingCallUi(newState);
+        } else {
+            updateInCallNotification(state);
+        }
+    }
+
+    /**
+     * Updates the phone app's status bar notification based on the
+     * current telephony state, or cancels the notification if the phone
+     * is totally idle.
+     *
+     * This method will never actually launch the incoming-call UI.
+     * (Use updateNotificationAndLaunchIncomingCallUi() for that.)
+     */
+    private void updateInCallNotification(InCallState state) {
+        // allowFullScreenIntent=false means *don't* allow the incoming
+        // call UI to be launched.
+        updateInCallNotification(false, state);
+    }
+
+    /**
+     * Updates the phone app's status bar notification *and* launches the
+     * incoming call UI in response to a new incoming call.
+     *
+     * This is just like updateInCallNotification(), with one exception:
+     * If an incoming call is ringing (or call-waiting), the notification
+     * will also include a "fullScreenIntent" that will cause the
+     * InCallScreen to be launched immediately, unless the current
+     * foreground activity is marked as "immersive".
+     *
+     * (This is the mechanism that actually brings up the incoming call UI
+     * when we receive a "new ringing connection" event from the telephony
+     * layer.)
+     *
+     * Watch out: this method should ONLY be called directly from the code
+     * path in CallNotifier that handles the "new ringing connection"
+     * event from the telephony layer.  All other places that update the
+     * in-call notification (like for phone state changes) should call
+     * updateInCallNotification() instead.  (This ensures that we don't
+     * end up launching the InCallScreen multiple times for a single
+     * incoming call, which could cause slow responsiveness and/or visible
+     * glitches.)
+     *
+     * Also note that this method is safe to call even if the phone isn't
+     * actually ringing (or, more likely, if an incoming call *was*
+     * ringing briefly but then disconnected).  In that case, we'll simply
+     * update or cancel the in-call notification based on the current
+     * phone state.
+     *
+     * @see #updateInCallNotification(boolean)
+     */
+    private void updateNotificationAndLaunchIncomingCallUi(InCallState state) {
+        // Set allowFullScreenIntent=true to indicate that we *should*
+        // launch the incoming call UI if necessary.
+        updateInCallNotification(true, state);
+    }
+
+
+    /**
+     * Take down the in-call notification.
+     * @see updateInCallNotification()
+     */
+    private void cancelInCall() {
+        Logger.d(this, "cancelInCall()...");
+        mNotificationManager.cancel(IN_CALL_NOTIFICATION);
+    }
+
+    /**
+     * Helper method for updateInCallNotification() and
+     * updateNotificationAndLaunchIncomingCallUi(): Update the phone app's
+     * status bar notification based on the current telephony state, or
+     * cancels the notification if the phone is totally idle.
+     *
+     * @param allowFullScreenIntent If true, *and* an incoming call is
+     *   ringing, the notification will include a "fullScreenIntent"
+     *   pointing at the InCallActivity (which will cause the InCallActivity
+     *   to be launched.)
+     *   Watch out: This should be set to true *only* when directly
+     *   handling a new incoming call for the first time.
+     */
+    private void updateInCallNotification(boolean allowFullScreenIntent, InCallState state) {
+        int resId;
+        Logger.d(this, "updateInCallNotification(allowFullScreenIntent = "
+                     + allowFullScreenIntent + ")...");
+
+        if (InCallState.INCALL != state && InCallState.INCOMING != state) {
+            cancelInCall();
+            return;
+        }
+
+        final PendingIntent inCallPendingIntent = getLaunchPendingIntent();
+        final Notification.Builder builder = getNotificationBuilder();
+
+        /*
+         * Set up the Intents that will get fires when the user interacts with the notificaiton.
+         */
+        builder.setContentIntent(inCallPendingIntent);
+        if (InCallState.INCOMING == state) {
+            if (allowFullScreenIntent) {
+                configureFullScreenIntent(builder, inCallPendingIntent);
+            }
+        } else if (InCallState.INCALL == state) {
+            addActiveCallIntents(builder);
+        }
+
+
+        /*
+         * Set up notification Ui.
+         */
+        setUpNotificationUi(builder);
+
+
+        /*
+         * Fire off the notification
+         */
+        Notification notification = builder.build();
+        Logger.d(this, "Notifying IN_CALL_NOTIFICATION: " + notification);
+        mNotificationManager.notify(IN_CALL_NOTIFICATION, notification);
+    }
+
+    /**
+     * Sets up the main Ui for the notification
+     */
+    private void setUpNotificationUi(Notification.Builder builder) {
+        // set the content
+        builder.setContentText(mContext.getString(R.string.notification_ongoing_call));
+        builder.setSmallIcon(R.drawable.stat_sys_phone_call);
+    }
+
+    private void addActiveCallIntents(Notification.Builder builder) {
+        Logger.i(this, "Will show \"hang-up\" action in the ongoing active call Notification");
+        // TODO: use better asset.
+        // TODO(klp): uncomment this for "hang-up" capability
+        //builder.addAction(R.drawable.stat_sys_phone_call_end,
+        //        mContext.getText(R.string.notification_action_end_call),
+        //        PhoneGlobals.createHangUpOngoingCallPendingIntent(mContext));
+    }
+
+    /**
+     * Adds fullscreen intent to the builder.
+     */
+    private void configureFullScreenIntent(Notification.Builder builder, PendingIntent intent) {
+        // Ok, we actually want to launch the incoming call
+        // UI at this point (in addition to simply posting a notification
+        // to the status bar).  Setting fullScreenIntent will cause
+        // the InCallScreen to be launched immediately *unless* the
+        // current foreground activity is marked as "immersive".
+        Logger.d(this, "- Setting fullScreenIntent: " + intent);
+        builder.setFullScreenIntent(intent, true);
+
+        // Ugly hack alert:
+        //
+        // The NotificationManager has the (undocumented) behavior
+        // that it will *ignore* the fullScreenIntent field if you
+        // post a new Notification that matches the ID of one that's
+        // already active.  Unfortunately this is exactly what happens
+        // when you get an incoming call-waiting call:  the
+        // "ongoing call" notification is already visible, so the
+        // InCallScreen won't get launched in this case!
+        // (The result: if you bail out of the in-call UI while on a
+        // call and then get a call-waiting call, the incoming call UI
+        // won't come up automatically.)
+        //
+        // The workaround is to just notice this exact case (this is a
+        // call-waiting call *and* the InCallScreen is not in the
+        // foreground) and manually cancel the in-call notification
+        // before (re)posting it.
+        //
+        // TODO: there should be a cleaner way of avoiding this
+        // problem (see discussion in bug 3184149.)
+
+        // TODO(klp): reenable this for klp
+        /*if (incomingCall.getState() == Call.State.CALL_WAITING) {
+            Logger.i(this, "updateInCallNotification: call-waiting! force relaunch...");
+            // Cancel the IN_CALL_NOTIFICATION immediately before
+            // (re)posting it; this seems to force the
+            // NotificationManager to launch the fullScreenIntent.
+            mNotificationManager.cancel(IN_CALL_NOTIFICATION);
+        }*/
+    }
+
+    private Notification.Builder getNotificationBuilder() {
+        final Notification.Builder builder = new Notification.Builder(mContext);
+        builder.setOngoing(true);
+
+        // Make the notification prioritized over the other normal notifications.
+        builder.setPriority(Notification.PRIORITY_HIGH);
+
+        return builder;
+    }
+
+    private PendingIntent getLaunchPendingIntent() {
+
+        final Intent intent = new Intent(Intent.ACTION_MAIN, null);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
+                | Intent.FLAG_ACTIVITY_NO_USER_ACTION);
+        intent.setClass(mContext, InCallActivity.class);
+
+        // PendingIntent that can be used to launch the InCallActivity.  The
+        // system fires off this intent if the user pulls down the windowshade
+        // and clicks the notification's expanded view.  It's also used to
+        // launch the InCallActivity immediately when when there's an incoming
+        // call (see the "fullScreenIntent" field below).
+        PendingIntent inCallPendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0);
+
+        return inCallPendingIntent;
+    }
+}