First pass at Dialer to InCall transition

* Modify InCallActivity to perform an animation only on a new outgoing
call
* Add an animated scrim to call_card.xml that serves as the backdrop
of the full screen animated reveal
* Add resize animation
* Add circular reveal animation

Bug: 14820894

Change-Id: Iaa7e87e8a96dcd269e444a40eadac9d912625c01

9 files changed, 280 insertions, 90 deletions

diff --git a/InCallUI/res/layout/call_button_fragment.xml b/InCallUI/res/layout/call_button_fragment.xml
index b455241d8..cf21b1dd9 100644
--- a/InCallUI/res/layout/call_button_fragment.xml
+++ b/InCallUI/res/layout/call_button_fragment.xml
@@ -33,7 +33,6 @@
     android:id="@+id/bottomButtons"
     android:orientation="vertical"
     android:layout_width="match_parent"
-    android:background="#0000ff"
     android:layout_margin="0dp"
     android:padding="0dp"
     android:layout_height="wrap_content"
diff --git a/InCallUI/res/layout/call_card.xml b/InCallUI/res/layout/call_card.xml
index f2e5b1865..bb12725ff 100644
--- a/InCallUI/res/layout/call_card.xml
+++ b/InCallUI/res/layout/call_card.xml
@@ -16,102 +16,128 @@
   ~ limitations under the License
   -->
 
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/call_card"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical" >
-
-    <!-- The main content of the CallCard is either one or two "call info"
-         blocks, depending on whether one or two lines are in use.
+    android:layout_height="match_parent" >
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical" >
 
-         The call_info blocks are stacked vertically inside a CallCard (LinearLayout),
-         each with layout_weight="1".  If only one line is in use (i.e. the
-         common case) then the 2nd call info will be GONE and thus the 1st one
-         will expand to fill the full height of the CallCard. -->
+        <!-- The main content of the CallCard is either one or two "call info"
+             blocks, depending on whether one or two lines are in use.
 
-    <!-- Primary "call card" block, for the foreground call. -->
-    <FrameLayout
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="5" >
+             The call_info blocks are stacked vertically inside a CallCard (LinearLayout),
+             each with layout_weight="1".  If only one line is in use (i.e. the
+             common case) then the 2nd call info will be GONE and thus the 1st one
+             will expand to fill the full height of the CallCard. -->
 
-        <LinearLayout
+        <!-- Primary "call card" block, for the foreground call. -->
+        <FrameLayout
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:orientation="vertical" >
+            android:layout_height="0dp"
+            android:layout_weight="5" >
 
             <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="vertical"
-                android:translationZ="@dimen/primary_call_translation_z" >
-
-                <include android:id="@+id/primary_call_info"
-                    layout="@layout/primary_call_info" />
+                android:layout_height="match_parent"
+                android:orientation="vertical" >
 
-                <fragment android:name="com.android.incallui.CallButtonFragment"
-                    android:id="@+id/callButtonFragment"
+                <LinearLayout
+                    android:id="@+id/primary_call_info_container"
                     android:layout_width="match_parent"
-                    android:layout_height="wrap_content" />
+                    android:layout_height="wrap_content"
+                    android:orientation="vertical"
+                    android:translationZ="@dimen/primary_call_translation_z"
+                    android:background="@color/incall_call_banner_background_color"
+                    >
 
-            </LinearLayout>
+                    <include layout="@layout/primary_call_info" />
 
-            <FrameLayout
-                android:layout_width="match_parent"
-                android:layout_height="match_parent" >
+                    <fragment android:name="com.android.incallui.CallButtonFragment"
+                        android:id="@+id/callButtonFragment"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content" />
 
-                <!-- Contact photo for primary call info -->
-                <ImageView android:id="@+id/photo"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:gravity="top|center_horizontal"
-                    android:scaleType="centerCrop"
-                    android:contentDescription="@string/contactPhoto"
-                    android:src="@drawable/picture_unknown"/>
-
-                <fragment android:name="com.android.incallui.DialpadFragment"
-                    android:id="@+id/dialpadFragment"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent" />
+                </LinearLayout>
 
-                <fragment android:name="com.android.incallui.AnswerFragment"
-                    android:id="@+id/answerFragment"
+                <FrameLayout
                     android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_alignParentBottom="true"
-                    android:layout_centerHorizontal="true"
-                    android:gravity="top"
-                    android:layout_gravity="bottom|center_horizontal"
-                    android:layout_marginBottom="@dimen/glowpadview_margin_bottom"
-                    android:visibility="gone" />
+                    android:layout_height="match_parent" >
+
+                    <!-- Contact photo for primary call info -->
+                    <ImageView android:id="@+id/photo"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:gravity="top|center_horizontal"
+                        android:scaleType="centerCrop"
+                        android:contentDescription="@string/contactPhoto"
+                        android:src="@drawable/picture_unknown"/>
+
+                    <fragment android:name="com.android.incallui.DialpadFragment"
+                        android:id="@+id/dialpadFragment"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent" />
+
+                    <fragment android:name="com.android.incallui.AnswerFragment"
+                        android:id="@+id/answerFragment"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_alignParentBottom="true"
+                        android:layout_centerHorizontal="true"
+                        android:gravity="top"
+                        android:layout_gravity="bottom|center_horizontal"
+                        android:layout_marginBottom="@dimen/glowpadview_margin_bottom"
+                        android:visibility="gone" />
+
+                </FrameLayout>
 
-            </FrameLayout>
+            </LinearLayout>
 
-        </LinearLayout>
+            <FrameLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="bottom|center">
 
-        <FrameLayout
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="bottom|center">
-
-            <ImageButton android:id="@+id/endButton"
-                android:layout_width="@dimen/floating_action_button_width"
-                android:layout_height="@dimen/floating_action_button_height"
-                android:layout_marginBottom="@dimen/end_call_button_margin_bottom"
-                android:background="@drawable/end_call_background"
-                android:src="@drawable/fab_ic_end_call"
-                android:contentDescription="@string/onscreenEndCallText" />
+                <ImageButton android:id="@+id/endButton"
+                    android:layout_width="@dimen/floating_action_button_width"
+                    android:layout_height="@dimen/floating_action_button_height"
+                    android:layout_marginBottom="@dimen/end_call_button_margin_bottom"
+                    android:background="@drawable/end_call_background"
+                    android:src="@drawable/fab_ic_end_call"
+                    android:contentDescription="@string/onscreenEndCallText" />
 
+            </FrameLayout>
         </FrameLayout>
 
-    </FrameLayout>
+        <!-- Secondary "Call info" block, for the background ("on hold") call. -->
+        <ViewStub android:id="@+id/secondary_call_info"
+            android:layout="@layout/secondary_call_info"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1" />
+
+    </LinearLayout>
 
-    <!-- Secondary "Call info" block, for the background ("on hold") call. -->
-    <ViewStub android:id="@+id/secondary_call_info"
-        android:layout="@layout/secondary_call_info"
+    <!-- Animated scrim that fills the whole screen and then shrinks to show call details -->
+    <LinearLayout
+        android:id="@+id/animated_scrim"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1" />
+        android:layout_height="match_parent"
+        android:visibility="gone"
+        android:orientation="vertical">
+
+        <Space
+            android:id="@+id/animated_scrim_spacer"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="0" />
+        <View
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:background="@color/incall_call_banner_background_color" />
+    </LinearLayout>
 
-</LinearLayout>
+</FrameLayout>
diff --git a/InCallUI/res/layout/primary_call_info.xml b/InCallUI/res/layout/primary_call_info.xml
index db18e4dfa..d7a2b9d79 100644
--- a/InCallUI/res/layout/primary_call_info.xml
+++ b/InCallUI/res/layout/primary_call_info.xml
@@ -18,7 +18,7 @@
 
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="match_parent"
-         android:layout_height="wrap_content">
+         android:layout_height="wrap_content" >
 
     <LinearLayout
             android:layout_width="match_parent"
@@ -38,8 +38,7 @@
             android:paddingStart="@dimen/call_banner_side_padding"
             android:paddingEnd="@dimen/call_banner_side_padding"
             android:paddingTop="@dimen/call_banner_primary_call_top_padding"
-            android:paddingBottom="@dimen/call_banner_top_bottom_padding"
-            android:background="@color/incall_call_banner_background_color">
+            android:paddingBottom="@dimen/call_banner_top_bottom_padding" >
 
             <!-- Name (or the phone number, if we don't have a name to display). -->
             <LinearLayout android:id="@+id/stateAndName"
diff --git a/InCallUI/res/values/styles.xml b/InCallUI/res/values/styles.xml
index c5b5d4722..747a324e4 100644
--- a/InCallUI/res/values/styles.xml
+++ b/InCallUI/res/values/styles.xml
@@ -112,13 +112,16 @@
         <item name="android:taskToFrontExitAnimation">@anim/activity_open_exit</item>
     </style>
 
-    <!-- Theme for the InCallActivity activity.  This gives us a totally black
-         window background instead of the default dark grey.  (We don't just use
+    <!-- Theme for the InCallActivity activity. Should have a transparent background for the
+         circular reveal animation for a new outgoing call to work correctly. We don't just use
          Theme.Black.NoTitleBar directly, since we want any popups or dialogs
          from the InCallActivity to have the correct holo style. -->
     <style name="Theme.InCallScreen" parent="@android:style/Theme.Holo.NoActionBar">
-        <item name="android:windowBackground">@android:color/black</item>
         <item name="android:windowAnimationStyle">@style/InCallAnimationStyle</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowNoTitle">true</item>
     </style>
 
     <style name="PrimaryCallInfoPrimaryCallBanner">
diff --git a/InCallUI/src/com/android/incallui/CallCardFragment.java b/InCallUI/src/com/android/incallui/CallCardFragment.java
index bd4864161..5998a3f88 100644
--- a/InCallUI/src/com/android/incallui/CallCardFragment.java
+++ b/InCallUI/src/com/android/incallui/CallCardFragment.java
@@ -16,23 +16,34 @@
 
 package com.android.incallui;
 
+import android.animation.Animator.AnimatorListener;
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ValueAnimator;
+import android.app.Activity;
 import android.content.Context;
+import android.graphics.Point;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.telephony.DisconnectCause;
 import android.text.TextUtils;
-import android.view.Gravity;
+import android.view.Display;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.view.ViewGroup.LayoutParams;
 import android.view.ViewStub;
+import android.view.ViewTreeObserver;
+import android.view.ViewTreeObserver.OnGlobalLayoutListener;
 import android.view.accessibility.AccessibilityEvent;
-import android.widget.Button;
+import android.view.animation.Animation;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.android.contacts.common.animation.AnimationListenerAdapter;
 import com.android.contacts.common.util.ViewUtil;
+import com.android.incallui.animation.ResizeAnimation;
 
 import java.util.List;
 
@@ -42,6 +53,9 @@ import java.util.List;
 public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPresenter.CallCardUi>
         implements CallCardPresenter.CallCardUi {
 
+    private static final int REVEAL_ANIMATION_DURATION = 800;
+    private static final int SLIDE_ANIMATION_DURATION = 400;
+
     // Primary caller info
     private TextView mPhoneNumber;
     private TextView mNumberLabel;
@@ -51,17 +65,27 @@ public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPr
     private ImageView mPhoto;
     private TextView mElapsedTime;
 
+    // Container view that houses the entire primary call card, including the call buttons
+    private View mPrimaryCallCardContainer;
+    // Container view that houses the primary call information
+    private View mPrimaryCallInfo;
+    private View mCallButtonsContainer;
+
     // Secondary caller info
     private ViewStub mSecondaryCallInfo;
     private TextView mSecondaryCallName;
     private ImageView mSecondaryPhoto;
     private View mSecondaryPhotoOverlay;
 
+    private View mAnimatedScrim;
+
     private View mEndCallButton;
 
     // Cached DisplayMetrics density.
     private float mDensity;
 
+    private final AnimatorListener mAnimatedScrimListener = new AnimatedScrimListener();
+
     @Override
     CallCardPresenter.CallCardUi getUi() {
         return this;
@@ -109,6 +133,10 @@ public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPr
         mCallStateLabel = (TextView) view.findViewById(R.id.callStateLabel);
         mCallTypeLabel = (TextView) view.findViewById(R.id.callTypeLabel);
         mElapsedTime = (TextView) view.findViewById(R.id.elapsedTime);
+        mPrimaryCallCardContainer = view.findViewById(R.id.primary_call_info_container);
+        mPrimaryCallInfo = view.findViewById(R.id.primary_call_banner);
+        mAnimatedScrim = view.findViewById(R.id.animated_scrim);
+        mCallButtonsContainer = view.findViewById(R.id.callButtonFragment);
 
         mEndCallButton = view.findViewById(R.id.endButton);
         mEndCallButton.setOnClickListener(new View.OnClickListener() {
@@ -507,4 +535,78 @@ public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPr
             eventText.add(null);
         }
     }
+
+    public void animateForNewOutgoingCall() {
+        final View animatedSpacer = getView().findViewById(R.id.animated_scrim_spacer);
+
+        mAnimatedScrim.setVisibility(View.VISIBLE);
+        mAnimatedScrim.getLayoutParams().height = LayoutParams.MATCH_PARENT;
+        mAnimatedScrim.requestLayout();
+
+        final ViewTreeObserver observer = getView().getViewTreeObserver();
+        observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                final ViewTreeObserver observer = getView().getViewTreeObserver();
+                if (!observer.isAlive()) {
+                    return;
+                }
+                observer.removeOnGlobalLayoutListener(this);
+
+                // Prepare the state of views before the circular reveal animation
+                final int targetHeight = mPrimaryCallCardContainer.getHeight();
+                animatedSpacer.getLayoutParams().height = targetHeight;
+                animatedSpacer.requestLayout();
+
+                mPrimaryCallInfo.setAlpha(0);
+                mCallButtonsContainer.setAlpha(0);
+
+                performAnimatedReveal(mAnimatedScrimListener);
+            }
+        });
+    }
+
+    private void performAnimatedReveal(AnimatorListener listener) {
+        final Activity activity = getActivity();
+        final View view  = activity.getWindow().getDecorView();
+        final Display display = activity.getWindowManager().getDefaultDisplay();
+        final Point size = new Point();
+        display.getSize(size);
+
+        final ValueAnimator valueAnimator = view.createRevealAnimator(size.x / 2, size.y / 2,
+                0, Math.max(size.x, size.y));
+        valueAnimator.setDuration(REVEAL_ANIMATION_DURATION);
+        valueAnimator.addListener(listener);
+        valueAnimator.start();
+    }
+
+    private final class AnimatedScrimListener extends AnimatorListenerAdapter {
+        @Override
+        public void onAnimationEnd(Animator animation) {
+            final int width = mAnimatedScrim.getWidth();
+            ResizeAnimation resizeAnimation =
+                    new ResizeAnimation(mAnimatedScrim, width, width, mAnimatedScrim.getHeight(),
+                            0);
+            resizeAnimation.setDuration(SLIDE_ANIMATION_DURATION);
+            resizeAnimation.setAnimationListener(new AnimationListenerAdapter() {
+                @Override
+                public void onAnimationStart(Animation animation) {
+                    // Prepare the state of views before the scrim's sliding up animation
+                    mEndCallButton.setTranslationY(200);
+                    mEndCallButton.animate().translationY(0)
+                            .setDuration(SLIDE_ANIMATION_DURATION);
+                    mPrimaryCallInfo.animate().alpha(1).withLayer()
+                            .setDuration(SLIDE_ANIMATION_DURATION);
+                    mCallButtonsContainer.animate().alpha(1).withLayer()
+                            .setDuration(SLIDE_ANIMATION_DURATION);
+                }
+
+                @Override
+                public void onAnimationEnd(Animation animation) {
+                    mAnimatedScrim.setVisibility(View.GONE);
+                }
+            });
+            mAnimatedScrim.startAnimation(resizeAnimation);
+        }
+    };
 }
diff --git a/InCallUI/src/com/android/incallui/InCallActivity.java b/InCallUI/src/com/android/incallui/InCallActivity.java
index 5262045f2..7769a0b7b 100644
--- a/InCallUI/src/com/android/incallui/InCallActivity.java
+++ b/InCallUI/src/com/android/incallui/InCallActivity.java
@@ -41,6 +41,7 @@ import com.android.incallui.Call.State;
 public class InCallActivity extends Activity {
 
     public static final String SHOW_DIALPAD_EXTRA = "InCallActivity.show_dialpad";
+    public static final String NEW_OUTGOING_CALL = "InCallActivity.new_outgoing_call";
 
     private static final int INVALID_RES_ID = -1;
 
@@ -83,6 +84,8 @@ public class InCallActivity extends Activity {
         setContentView(R.layout.incall_screen);
 
         initializeInCall();
+
+        internalResolveIntent(getIntent());
         Log.d(this, "onCreate(): exit");
     }
 
@@ -342,6 +345,10 @@ public class InCallActivity extends Activity {
                 relaunchedFromDialer(showDialpad);
             }
 
+            if (intent.getBooleanExtra(NEW_OUTGOING_CALL, false)) {
+                mCallCardFragment.animateForNewOutgoingCall();
+            }
+
             return;
         }
     }
diff --git a/InCallUI/src/com/android/incallui/InCallPresenter.java b/InCallUI/src/com/android/incallui/InCallPresenter.java
index ac6835367..14c2a8020 100644
--- a/InCallUI/src/com/android/incallui/InCallPresenter.java
+++ b/InCallUI/src/com/android/incallui/InCallPresenter.java
@@ -375,7 +375,7 @@ public class InCallPresenter implements CallList.Listener {
         Call call = mCallList.getIncomingCall();
         if (call != null) {
             TelecommAdapter.getInstance().answerCall(call.getCallId());
-            showInCall(false);
+            showInCall(false, false/* newOutgoingCall */);
         }
     }
 
@@ -450,7 +450,7 @@ public class InCallPresenter implements CallList.Listener {
         // 3. We are in a state where we want to show the incall ui
         if (mIsActivityPreviouslyStarted && !isShowingInCallUi() &&
                 mInCallState != InCallState.NO_CALLS) {
-            showInCall(showDialpad);
+            showInCall(showDialpad, false /* newOutgoingCall */);
         }
     }
 
@@ -635,7 +635,7 @@ public class InCallPresenter implements CallList.Listener {
 
         if (showCallUi) {
             Log.i(this, "Start in call UI");
-            showInCall(false);
+            showInCall(false /* showDialpad */, true /* newOutgoingCall */);
         } else if (startStartupSequence) {
             Log.i(this, "Start Full Screen in call UI");
 
@@ -722,11 +722,11 @@ public class InCallPresenter implements CallList.Listener {
         }
     }
 
-    private void showInCall(boolean showDialpad) {
-        mContext.startActivity(getInCallIntent(showDialpad));
+    private void showInCall(boolean showDialpad, boolean newOutgoingCall) {
+        mContext.startActivity(getInCallIntent(showDialpad, newOutgoingCall));
     }
 
-    public Intent getInCallIntent(boolean showDialpad) {
+    public Intent getInCallIntent(boolean showDialpad, boolean newOutgoingCall) {
         final Intent intent = new Intent(Intent.ACTION_MAIN, null);
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
@@ -736,6 +736,7 @@ public class InCallPresenter implements CallList.Listener {
             intent.putExtra(InCallActivity.SHOW_DIALPAD_EXTRA, true);
         }
 
+        intent.putExtra(InCallActivity.NEW_OUTGOING_CALL, newOutgoingCall);
         return intent;
     }
 
diff --git a/InCallUI/src/com/android/incallui/StatusBarNotifier.java b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
index c28b98de2..b7b36d87d 100644
--- a/InCallUI/src/com/android/incallui/StatusBarNotifier.java
+++ b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
@@ -546,7 +546,8 @@ public class StatusBarNotifier implements InCallPresenter.InCallStateListener {
     }
     private PendingIntent createLaunchPendingIntent() {
 
-        final Intent intent = InCallPresenter.getInstance().getInCallIntent(/*showdialpad=*/false);
+        final Intent intent = InCallPresenter.getInstance().getInCallIntent(
+                false /* showDialpad */, false /* newOutgoingCall */);
 
         // PendingIntent that can be used to launch the InCallActivity.  The
         // system fires off this intent if the user pulls down the windowshade
diff --git a/InCallUI/src/com/android/incallui/animation/ResizeAnimation.java b/InCallUI/src/com/android/incallui/animation/ResizeAnimation.java
new file mode 100644
index 000000000..3151ffbf7
--- /dev/null
+++ b/InCallUI/src/com/android/incallui/animation/ResizeAnimation.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 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.animation;
+
+import android.view.View;
+import android.view.animation.Animation;
+import android.view.animation.Transformation;
+
+public class ResizeAnimation extends Animation {
+    private final int mStartWidth;
+    private final int mStartHeight;
+    private final int mEndWidth;
+    private final int mEndHeight;
+    private final View mView;
+
+    public ResizeAnimation(View view, int startWidth, int endWidth, int startHeight,
+            int endHeight) {
+        this.mView = view;
+        this.mStartWidth = startWidth;
+        this.mStartHeight = startHeight;
+        this.mEndWidth = endWidth;
+        this.mEndHeight = endHeight;
+    }
+
+    @Override
+    protected void applyTransformation(float interpolatedTime, Transformation t) {
+        int width = (int) (mStartWidth + (mEndWidth - mStartWidth) * interpolatedTime);
+        int height = (int) (mStartHeight + (mEndHeight - mStartHeight) * interpolatedTime);
+        mView.getLayoutParams().width = width;
+        mView.getLayoutParams().height = height;
+        mView.requestLayout();
+    }
+
+    @Override
+    public boolean willChangeBounds() {
+        return true;
+    }
+}
\ No newline at end of file