Cleanup code style

* Fix breakage from 'Materialize' commit

Change-Id: I81d06e069f3eb18581a7072aaf7e22b1a3d804a2

14 files changed, 665 insertions, 661 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index c85ed3b72..ce6ba3621 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -148,7 +148,7 @@
         </activity>
 
         <activity android:name="ShortcutActivity"
-          android:theme="@style/PreferencesTheme"
+            android:theme="@style/PreferencesTheme"
             android:label="@string/shortcut_bookmark"
             android:icon="@mipmap/ic_launcher_shortcut_browser_bookmark">
             <intent-filter>
@@ -158,7 +158,9 @@
 
         </activity>
 
-        <activity android:name="BrowserPreferencesPage" android:label="@string/menu_preferences" android:theme="@style/PreferencesTheme">
+        <activity android:name="BrowserPreferencesPage"
+                  android:label="@string/menu_preferences"
+                  android:theme="@style/PreferencesTheme">
             <intent-filter>
                <action android:name="android.intent.action.MANAGE_NETWORK_USAGE" />
                <category android:name="android.intent.category.DEFAULT" />
@@ -178,7 +180,8 @@
                     android:resource="@xml/bookmarks_searchable" />
         </activity>
 
-        <activity android:name="AddBookmarkPage" android:label="@string/bookmarks_add_page"
+        <activity android:name="AddBookmarkPage"
+                  android:label="@string/bookmarks_add_page"
                   android:theme="@style/PreferencesTheme"
                   android:configChanges="orientation|keyboardHidden|screenSize"
                   android:windowSoftInputMode="adjustResize">
@@ -186,11 +189,11 @@
                 <action android:name="android.intent.action.INSERT" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="vnd.android.cursor.dir/bookmark"/>
-                android:theme="@style/PreferencesTheme"  </intent-filter>
+            </intent-filter>
         </activity>
 
         <activity android:name="ComboViewActivity"
-        android:theme="@style/PreferencesTheme">
+                  android:theme="@style/PreferencesTheme">
         </activity>
 
         <!-- Bookmark thumbnail homescreen widget -->
diff --git a/res/anim/button_elevation.xml b/res/anim/button_elevation.xml
index 91596462d..21dd6543e 100644
--- a/res/anim/button_elevation.xml
+++ b/res/anim/button_elevation.xml
@@ -1,33 +1,34 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The CyanogenMod Project
+<!--
+     Copyright (C) 2014 The CyanogenMod 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
+     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
+          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.
+     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.
 -->
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
-  <item android:state_pressed="true">
-    <objectAnimator
-      android:propertyName="translationZ"
-      android:duration="@android:integer/config_shortAnimTime"
-      android:valueFrom="@dimen/elevation_low"
-      android:valueTo="@dimen/elevation_high"
-      android:valueType="floatType"/>
+    <item android:state_pressed="true">
+        <objectAnimator
+            android:propertyName="translationZ"
+            android:duration="@android:integer/config_shortAnimTime"
+            android:valueFrom="@dimen/elevation_low"
+            android:valueTo="@dimen/elevation_high"
+            android:valueType="floatType"/>
     </item>
     <item>
-      <objectAnimator
-        android:propertyName="translationZ"
-        android:duration="@android:integer/config_shortAnimTime"
-        android:valueFrom="@dimen/elevation_high"
-        android:valueTo="@dimen/elevation_low"
-        android:valueType="floatType"/>
-      </item>
-    </selector>
+        <objectAnimator
+            android:propertyName="translationZ"
+            android:duration="@android:integer/config_shortAnimTime"
+            android:valueFrom="@dimen/elevation_high"
+            android:valueTo="@dimen/elevation_low"
+            android:valueType="floatType"/>
+    </item>
+</selector>
diff --git a/res/drawable/fab_accent.xml b/res/drawable/fab_accent.xml
index fabd58338..01aa084a3 100644
--- a/res/drawable/fab_accent.xml
+++ b/res/drawable/fab_accent.xml
@@ -1,19 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The CyanogenMod Project
+<!--
+     Copyright (C) 2014 The CyanogenMod 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
+     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
+          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.
+     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.
 -->
-
-<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
-  <solid android:color="@color/primary" />
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="oval">
+    <solid android:color="@color/primary" />
 </shape>
diff --git a/res/drawable/floating_action_button.xml b/res/drawable/floating_action_button.xml
index 0f313cb33..ef9536750 100644
--- a/res/drawable/floating_action_button.xml
+++ b/res/drawable/floating_action_button.xml
@@ -1,24 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The CyanogenMod Project
+<!--
+     Copyright (C) 2014 The CyanogenMod 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
+     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
+          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.
+     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.
 -->
-
 <ripple xmlns:android="http://schemas.android.com/apk/res/android"
-  android:color="@color/floating_action_button_touch_tint">
-  <item android:id="@android:id/mask">
-    <shape android:shape="oval">
-      <solid android:color="@color/primary" />
-    </shape>
-  </item>
+        android:color="@color/floating_action_button_touch_tint">
+    <item android:id="@android:id/mask">
+        <shape android:shape="oval">
+            <solid android:color="@color/primary" />
+        </shape>
+    </item>
 </ripple>
diff --git a/res/layout-sw600dp/suggestion_item.xml b/res/layout-sw600dp/suggestion_item.xml
index 020ba58bd..b1a809b4c 100644
--- a/res/layout-sw600dp/suggestion_item.xml
+++ b/res/layout-sw600dp/suggestion_item.xml
@@ -81,5 +81,5 @@
         android:background="?android:attr/selectableItemBackground"
         android:paddingRight="@dimen/suggest_item_padding"
         android:paddingLeft="@dimen/suggest_item_padding"
-         />
+        />
 </LinearLayout>
diff --git a/res/layout/new_folder_layout.xml b/res/layout/new_folder_layout.xml
index 7db5b3871..76cc2f218 100644
--- a/res/layout/new_folder_layout.xml
+++ b/res/layout/new_folder_layout.xml
@@ -27,30 +27,30 @@
         android:gravity="center_vertical"
         android:minHeight="?android:attr/listPreferredItemHeight"
         android:src="@drawable/ic_folder_dark" />
-  <LinearLayout
-      android:layout_width="match_parent"
-      android:layout_height="wrap_content"
-      android:background="@*android:drawable/edit_text_holo_dark"
-      android:gravity="center_vertical"
-      android:paddingBottom="5dip"
-      android:orientation="horizontal">
-    <EditText
-        android:id="@+id/folder_namer"
-        android:layout_width="0dip"
+    <LinearLayout
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:textAppearance="?android:attr/textAppearanceMedium"
-        android:background="@null"
+        android:background="@*android:drawable/edit_text_holo_dark"
         android:gravity="center_vertical"
-        android:paddingLeft="6dip"
-        />
-    <ImageView
-        android:id="@+id/close"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:gravity="center_vertical"
-        android:src="@drawable/ic_tab_close"
-        android:contentDescription="@string/cancel"
-        />
-  </LinearLayout>
+        android:paddingBottom="5dip"
+        android:orientation="horizontal">
+        <EditText
+            android:id="@+id/folder_namer"
+            android:layout_width="0dip"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:background="@null"
+            android:gravity="center_vertical"
+            android:paddingLeft="6dip"
+            />
+        <ImageView
+            android:id="@+id/close"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:src="@drawable/ic_tab_close"
+            android:contentDescription="@string/cancel"
+            />
+    </LinearLayout>
 </LinearLayout>
diff --git a/res/layout/qc_menu_item.xml b/res/layout/qc_menu_item.xml
index 99c1eb9bb..ae0536253 100644
--- a/res/layout/qc_menu_item.xml
+++ b/res/layout/qc_menu_item.xml
@@ -28,4 +28,4 @@
     android:paddingTop="4dip"
     android:paddingBottom="4dip"
     android:elevation="8dp"
-     />
+    />
diff --git a/res/layout/suggestion_item.xml b/res/layout/suggestion_item.xml
index 0adea1b6d..9a08517c9 100644
--- a/res/layout/suggestion_item.xml
+++ b/res/layout/suggestion_item.xml
@@ -77,5 +77,5 @@
         android:background="?android:attr/selectableItemBackground"
         android:paddingRight="@dimen/suggest_item_padding"
         android:paddingLeft="@dimen/suggest_item_padding"
-         />
+        />
 </LinearLayout>
diff --git a/res/layout/tab_title.xml b/res/layout/tab_title.xml
index 3f727531c..954ffa353 100644
--- a/res/layout/tab_title.xml
+++ b/res/layout/tab_title.xml
@@ -31,7 +31,7 @@
         android:layout_height="match_parent"
         android:gravity="center_vertical"
         android:src="@drawable/ic_search_category_history"
-            android:contentDescription="@string/accessibility_state_frozen"
+        android:contentDescription="@string/accessibility_state_frozen"
         android:visibility="gone" />
     <ImageView
         android:id="@+id/favicon"
diff --git a/res/values-sw600dp/styles.xml b/res/values-sw600dp/styles.xml
index f03cac1ac..20e42f440 100644
--- a/res/values-sw600dp/styles.xml
+++ b/res/values-sw600dp/styles.xml
@@ -28,11 +28,11 @@
         <item name="android:actionBarSize">64dip</item>
     </style>
     <style name="Suggestions" parent="@android:style/Widget.Material.Light.AutoCompleteTextView">
-      <item name="android:textColor">@color/white</item>
-      <item name="android:textColorHint">@color/white</item>
-      <item name="android:dropDownVerticalOffset">0dip</item>
+        <item name="android:textColor">@color/white</item>
+        <item name="android:textColorHint">@color/white</item>
+        <item name="android:dropDownVerticalOffset">0dip</item>
     </style>
     <style name="ActionBarStyle" parent="@android:style/ThemeOverlay.Material.Dark.ActionBar">
         <item name="android:background">@color/primary</item>
-      </style>
+    </style>
 </resources>
diff --git a/res/values/dimensions.xml b/res/values/dimensions.xml
index 019a17329..b2853444a 100644
--- a/res/values/dimensions.xml
+++ b/res/values/dimensions.xml
@@ -78,5 +78,4 @@
     <dimen name="elevation_low">1dp</dimen>
     <dimen name="elevation_high">4dp</dimen>
     <dimen name="add_button_margin">16dp</dimen>
-    
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 7e3c30a78..0ad7ffeda 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -30,9 +30,9 @@
         <item name="android:colorAccent">@color/accent</item>
     </style>
     <style name="PreferencesTheme" parent="@android:Theme.Material.Light.DarkActionBar">
-      <item name="android:colorPrimary">@color/primary</item>
-      <item name="android:colorPrimaryDark">@color/primary_dark</item>
-      <item name="android:colorAccent">@color/accent</item>
+        <item name="android:colorPrimary">@color/primary</item>
+        <item name="android:colorPrimaryDark">@color/primary_dark</item>
+        <item name="android:colorAccent">@color/accent</item>
     </style>
     <style name="DialogWhenLarge" parent="@android:style/Theme.Material.DialogWhenLarge" >
         <item name="android:windowActionBar">false</item>
diff --git a/src/com/android/browser/NavScreen.java b/src/com/android/browser/NavScreen.java
index 7730cae1b..85eaa41b8 100644
--- a/src/com/android/browser/NavScreen.java
+++ b/src/com/android/browser/NavScreen.java
@@ -114,38 +114,38 @@ public class NavScreen extends RelativeLayout
     }
 
     private void init() {
-      LayoutInflater.from(mContext).inflate(R.layout.nav_screen, this);
-      setContentDescription(mContext.getResources().getString(
-      R.string.accessibility_transition_navscreen));
-      mBookmarks = (ImageButton) findViewById(R.id.bookmarks);
-      mNewTab = (ImageButton) findViewById(R.id.newtab);
-      mMore = (ImageButton) findViewById(R.id.more);
-      mBookmarks.setOnClickListener(this);
-      mNewTab.setOnClickListener(this);
-      mMore.setOnClickListener(this);
-      mScroller = (NavTabScroller) findViewById(R.id.scroller);
-      TabControl tc = mUiController.getTabControl();
-      mTabViews = new HashMap<Tab, View>(tc.getTabCount());
-      mAdapter = new TabAdapter(mContext, tc);
-      mScroller.setOrientation(mOrientation == Configuration.ORIENTATION_LANDSCAPE
-      ? LinearLayout.HORIZONTAL : LinearLayout.VERTICAL);
-      // update state for active tab
-      mScroller.setAdapter(mAdapter,
-      mUiController.getTabControl().getTabPosition(mUi.getActiveTab()));
-      mScroller.setOnRemoveListener(new OnRemoveListener() {
-        public void onRemovePosition(int pos) {
-          Tab tab = mAdapter.getItem(pos);
-          onCloseTab(tab);
-        }
-      });
-      mNewTabFab = (ImageView) findViewById(R.id.floating_action_button);
-      mNewTabFab.setOnClickListener(
-      new View.OnClickListener() {
-        @Override
-        public void onClick(View v) {
-          openNewTab();
-        }
-      });
+        LayoutInflater.from(mContext).inflate(R.layout.nav_screen, this);
+        setContentDescription(mContext.getResources().getString(
+                R.string.accessibility_transition_navscreen));
+        mBookmarks = (ImageButton) findViewById(R.id.bookmarks);
+        mNewTab = (ImageButton) findViewById(R.id.newtab);
+        mMore = (ImageButton) findViewById(R.id.more);
+        mBookmarks.setOnClickListener(this);
+        mNewTab.setOnClickListener(this);
+        mMore.setOnClickListener(this);
+        mScroller = (NavTabScroller) findViewById(R.id.scroller);
+        TabControl tc = mUiController.getTabControl();
+        mTabViews = new HashMap<Tab, View>(tc.getTabCount());
+        mAdapter = new TabAdapter(mContext, tc);
+        mScroller.setOrientation(mOrientation == Configuration.ORIENTATION_LANDSCAPE
+                ? LinearLayout.HORIZONTAL : LinearLayout.VERTICAL);
+        // update state for active tab
+        mScroller.setAdapter(mAdapter,
+                mUiController.getTabControl().getTabPosition(mUi.getActiveTab()));
+        mScroller.setOnRemoveListener(new OnRemoveListener() {
+            public void onRemovePosition(int pos) {
+                Tab tab = mAdapter.getItem(pos);
+                onCloseTab(tab);
+            }
+        });
+        mNewTabFab = (ImageView) findViewById(R.id.floating_action_button);
+        mNewTabFab.setOnClickListener(
+        new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                openNewTab();
+            }
+        });
     }
 
     @Override
diff --git a/src/com/android/browser/NavTabScroller.java b/src/com/android/browser/NavTabScroller.java
index f1f8e3582..b24acb3e7 100644
--- a/src/com/android/browser/NavTabScroller.java
+++ b/src/com/android/browser/NavTabScroller.java
@@ -1,18 +1,18 @@
 /*
-* Copyright (C) 2011 The Android Open Source Project
-*
-* Licensed under the Apache License, Version 2.0 (the "License"); you may not
-* use this file except in compliance with the License. You may obtain a copy of
-* the License at
-*
-* http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-* License for the specific language governing permissions and limitations under
-* the License.
-*/
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
 
 package com.android.browser;
 
@@ -35,535 +35,535 @@ import android.widget.LinearLayout;
 import com.android.browser.view.ScrollerView;
 
 /**
-* custom view for displaying tabs in the nav screen
-*/
+ * custom view for displaying tabs in the nav screen
+ */
 public class NavTabScroller extends ScrollerView {
 
-  static final int INVALID_POSITION = -1;
-  static final float[] PULL_FACTOR = { 2.5f, 0.9f };
-
-  interface OnRemoveListener {
-    public void onRemovePosition(int position);
-  }
-
-  interface OnLayoutListener {
-    public void onLayout(int l, int t, int r, int b);
-  }
-
-  private ContentLayout mContentView;
-  private BaseAdapter mAdapter;
-  private OnRemoveListener mRemoveListener;
-  private OnLayoutListener mLayoutListener;
-  private int mGap;
-  private int mGapPosition;
-  private ObjectAnimator mGapAnimator;
-
-  // after drag animation velocity in pixels/sec
-  private static final float MIN_VELOCITY = 1500;
-  private AnimatorSet mAnimator;
-
-  private float mFlingVelocity;
-  private boolean mNeedsScroll;
-  private int mScrollPosition;
-
-  DecelerateInterpolator mCubic;
-  int mPullValue;
-
-  public NavTabScroller(Context context, AttributeSet attrs, int defStyle) {
-    super(context, attrs, defStyle);
-    init(context);
-  }
-
-  public NavTabScroller(Context context, AttributeSet attrs) {
-    super(context, attrs);
-    init(context);
-  }
-
-  public NavTabScroller(Context context) {
-    super(context);
-    init(context);
-  }
-
-  private void init(Context ctx) {
-    mCubic = new DecelerateInterpolator(1.5f);
-    mGapPosition = INVALID_POSITION;
-    setHorizontalScrollBarEnabled(false);
-    setVerticalScrollBarEnabled(false);
-    mContentView = new ContentLayout(ctx, this);
-    mContentView.setOrientation(LinearLayout.HORIZONTAL);
-    addView(mContentView);
-    mContentView.setLayoutParams(
-    new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT));
-    // ProGuard !
-    setGap(getGap());
-    mFlingVelocity = getContext().getResources().getDisplayMetrics().density
-    * MIN_VELOCITY;
-  }
-
-  protected int getScrollValue() {
-    return mHorizontal ? mScrollX : mScrollY;
-  }
-
-  protected void setScrollValue(int value) {
-    scrollTo(mHorizontal ? value : 0, mHorizontal ? 0 : value);
-  }
-
-  protected NavTabView getTabView(int pos) {
-    return (NavTabView) mContentView.getChildAt(pos);
-  }
-
-  protected boolean isHorizontal() {
-    return mHorizontal;
-  }
-
-  public void setOrientation(int orientation) {
-    mContentView.setOrientation(orientation);
-    if (orientation == LinearLayout.HORIZONTAL) {
-      mContentView.setLayoutParams(
-      new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT));
-    } else {
-      mContentView.setLayoutParams(
-      new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
-    }
-    super.setOrientation(orientation);
-  }
-
-  @Override
-  protected void onMeasure(int wspec, int hspec) {
-    super.onMeasure(wspec, hspec);
-    calcPadding();
-  }
-
-  private void calcPadding() {
-    if (mAdapter.getCount() > 0) {
-      View v = mContentView.getChildAt(0);
-      if (mHorizontal) {
-        int pad = (getMeasuredWidth() - v.getMeasuredWidth()) / 2 + 2;
-        mContentView.setPadding(pad, 0, pad, 0);
-      } else {
-        int pad = (getMeasuredHeight() - v.getMeasuredHeight()) / 2 + 2;
-        mContentView.setPadding(0, pad, 0, pad);
-      }
-    }
-  }
-
-  public void setAdapter(BaseAdapter adapter) {
-    setAdapter(adapter, 0);
-  }
-
-
-  public void setOnRemoveListener(OnRemoveListener l) {
-    mRemoveListener = l;
-  }
-
-  public void setOnLayoutListener(OnLayoutListener l) {
-    mLayoutListener = l;
-  }
-
-  protected void setAdapter(BaseAdapter adapter, int selection) {
-    mAdapter = adapter;
-    mAdapter.registerDataSetObserver(new DataSetObserver() {
-
-      @Override
-      public void onChanged() {
-        super.onChanged();
-        handleDataChanged();
-      }
-
-      @Override
-      public void onInvalidated() {
-        super.onInvalidated();
-      }
-    });
-    handleDataChanged(selection);
-  }
-
-  protected ViewGroup getContentView() {
-    return mContentView;
-  }
-
-  protected int getRelativeChildTop(int ix) {
-    return mContentView.getChildAt(ix).getTop() - mScrollY;
-  }
-
-  protected void handleDataChanged() {
-    handleDataChanged(INVALID_POSITION);
-  }
-
-  void handleDataChanged(int newscroll) {
-    int scroll = getScrollValue();
-    if (mGapAnimator != null) {
-      mGapAnimator.cancel();
-    }
-    mContentView.removeAllViews();
-    for (int i = 0; i < mAdapter.getCount(); i++) {
-      View v = mAdapter.getView(i, null, mContentView);
-      LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
-      LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
-      lp.gravity = (mHorizontal ? Gravity.CENTER_VERTICAL : Gravity.CENTER_HORIZONTAL);
-      mContentView.addView(v, lp);
-      if (mGapPosition > INVALID_POSITION){
-        adjustViewGap(v, i);
-      }
-    }
-    if (newscroll > INVALID_POSITION) {
-      newscroll = Math.min(mAdapter.getCount() - 1, newscroll);
-      mNeedsScroll = true;
-      mScrollPosition = newscroll;
-      requestLayout();
-    } else {
-      setScrollValue(scroll);
-    }
-  }
-
-  protected void finishScroller() {
-    mScroller.forceFinished(true);
-  }
-
-  @Override
-  protected void onLayout(boolean changed, int l, int t, int r, int b) {
-    super.onLayout(changed, l, t, r, b);
-    if (mNeedsScroll) {
-      mScroller.forceFinished(true);
-      snapToSelected(mScrollPosition, false);
-      mNeedsScroll = false;
-    }
-    if (mLayoutListener != null) {
-      mLayoutListener.onLayout(l, t, r, b);
-      mLayoutListener = null;
-    }
-  }
-
-  void clearTabs() {
-    mContentView.removeAllViews();
-  }
-
-  void snapToSelected(int pos, boolean smooth) {
-    if (pos < 0) return;
-    View v = mContentView.getChildAt(pos);
-    if (v == null) return;
-    int sx = 0;
-    int sy = 0;
-    if (mHorizontal) {
-      sx = (v.getLeft() + v.getRight() - getWidth()) / 2;
-    } else {
-      sy = (v.getTop() + v.getBottom() - getHeight()) / 2;
-    }
-    if ((sx != mScrollX) || (sy != mScrollY)) {
-      if (smooth) {
-        smoothScrollTo(sx,sy);
-      } else {
-        scrollTo(sx, sy);
-      }
-    }
-  }
-
-  protected void animateOut(View v) {
-    if (v == null) return;
-    animateOut(v, -mFlingVelocity);
-  }
-
-  private void animateOut(final View v, float velocity) {
-    float start = mHorizontal ? v.getTranslationY() : v.getTranslationX();
-    animateOut(v, velocity, start);
-  }
-
-  private void animateOut(final View v, float velocity, float start) {
-    if ((v == null) || (mAnimator != null)) return;
-    final int position = mContentView.indexOfChild(v);
-    int target = 0;
-    if (velocity < 0) {
-      target = mHorizontal ? -getHeight() :  -getWidth();
-    } else {
-      target = mHorizontal ? getHeight() : getWidth();
-    }
-    int distance = target - (mHorizontal ? v.getTop() : v.getLeft());
-    long duration = (long) (Math.abs(distance) * 1000 / Math.abs(velocity));
-    int scroll = 0;
-    int translate = 0;
-    int gap = mHorizontal ? v.getWidth() : v.getHeight();
-    int centerView = getViewCenter(v);
-    int centerScreen = getScreenCenter();
-    int newpos = INVALID_POSITION;
-    if (centerView < centerScreen - gap / 2) {
-      // top view
-      scroll = - (centerScreen - centerView - gap);
-      translate = (position > 0) ? gap : 0;
-      newpos = position;
-    } else if (centerView > centerScreen + gap / 2) {
-      // bottom view
-      scroll = - (centerScreen + gap - centerView);
-      if (position < mAdapter.getCount() - 1) {
-        translate = -gap;
-      }
-    } else {
-      // center view
-      scroll = - (centerScreen - centerView);
-      if (position < mAdapter.getCount() - 1) {
-        translate = -gap;
-      } else {
-        scroll -= gap;
-      }
-    }
-    mGapPosition = position;
-    final int pos = newpos;
-    ObjectAnimator trans = ObjectAnimator.ofFloat(v,
-    (mHorizontal ? TRANSLATION_Y : TRANSLATION_X), start, target);
-    ObjectAnimator alpha = ObjectAnimator.ofFloat(v, ALPHA, getAlpha(v,start),
-    getAlpha(v,target));
-    AnimatorSet set1 = new AnimatorSet();
-    set1.playTogether(trans, alpha);
-    set1.setDuration(duration);
-    mAnimator = new AnimatorSet();
-    ObjectAnimator trans2 = null;
-    ObjectAnimator scroll1 = null;
-    if (scroll != 0) {
-      if (mHorizontal) {
-        scroll1 = ObjectAnimator.ofInt(this, "scrollX", getScrollX(), getScrollX() + scroll);
-      } else {
-        scroll1 = ObjectAnimator.ofInt(this, "scrollY", getScrollY(), getScrollY() + scroll);
-      }
-    }
-    if (translate != 0) {
-      trans2 = ObjectAnimator.ofInt(this, "gap", 0, translate);
-    }
-    final int duration2 = 200;
-    if (scroll1 != null) {
-      if (trans2 != null) {
-        AnimatorSet set2 = new AnimatorSet();
-        set2.playTogether(scroll1, trans2);
-        set2.setDuration(duration2);
-        mAnimator.playSequentially(set1, set2);
-      } else {
-        scroll1.setDuration(duration2);
-        mAnimator.playSequentially(set1, scroll1);
-      }
-    } else {
-      if (trans2 != null) {
-        trans2.setDuration(duration2);
-        mAnimator.playSequentially(set1, trans2);
-      }
-    }
-    mAnimator.addListener(new AnimatorListenerAdapter() {
-      public void onAnimationEnd(Animator a) {
-        if (mRemoveListener !=  null) {
-          mRemoveListener.onRemovePosition(position);
-          mAnimator = null;
-          mGapPosition = INVALID_POSITION;
-          mGap = 0;
-          handleDataChanged(pos);
+    static final int INVALID_POSITION = -1;
+    static final float[] PULL_FACTOR = { 2.5f, 0.9f };
+
+    interface OnRemoveListener {
+        public void onRemovePosition(int position);
+    }
+
+    interface OnLayoutListener {
+        public void onLayout(int l, int t, int r, int b);
+    }
+
+    private ContentLayout mContentView;
+    private BaseAdapter mAdapter;
+    private OnRemoveListener mRemoveListener;
+    private OnLayoutListener mLayoutListener;
+    private int mGap;
+    private int mGapPosition;
+    private ObjectAnimator mGapAnimator;
+
+    // after drag animation velocity in pixels/sec
+    private static final float MIN_VELOCITY = 1500;
+    private AnimatorSet mAnimator;
+
+    private float mFlingVelocity;
+    private boolean mNeedsScroll;
+    private int mScrollPosition;
+
+    DecelerateInterpolator mCubic;
+    int mPullValue;
+
+    public NavTabScroller(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init(context);
+    }
+
+    public NavTabScroller(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context);
+    }
+
+    public NavTabScroller(Context context) {
+        super(context);
+        init(context);
+    }
+
+    private void init(Context ctx) {
+        mCubic = new DecelerateInterpolator(1.5f);
+        mGapPosition = INVALID_POSITION;
+        setHorizontalScrollBarEnabled(false);
+        setVerticalScrollBarEnabled(false);
+        mContentView = new ContentLayout(ctx, this);
+        mContentView.setOrientation(LinearLayout.HORIZONTAL);
+        addView(mContentView);
+        mContentView.setLayoutParams(
+                new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT));
+        // ProGuard !
+        setGap(getGap());
+        mFlingVelocity = getContext().getResources().getDisplayMetrics().density
+                * MIN_VELOCITY;
+    }
+
+    protected int getScrollValue() {
+        return mHorizontal ? mScrollX : mScrollY;
+    }
+
+    protected void setScrollValue(int value) {
+        scrollTo(mHorizontal ? value : 0, mHorizontal ? 0 : value);
+    }
+
+    protected NavTabView getTabView(int pos) {
+        return (NavTabView) mContentView.getChildAt(pos);
+    }
+
+    protected boolean isHorizontal() {
+        return mHorizontal;
+    }
+
+    public void setOrientation(int orientation) {
+        mContentView.setOrientation(orientation);
+        if (orientation == LinearLayout.HORIZONTAL) {
+            mContentView.setLayoutParams(
+                    new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT));
+        } else {
+            mContentView.setLayoutParams(
+                    new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
         }
-      }
-    });
-    mAnimator.start();
-  }
-
-  public void setGap(int gap) {
-    if (mGapPosition != INVALID_POSITION) {
-      mGap = gap;
-      postInvalidate();
-    }
-  }
-
-  public int getGap() {
-    return mGap;
-  }
-
-  void adjustGap() {
-    for (int i = 0; i < mContentView.getChildCount(); i++) {
-      final View child = mContentView.getChildAt(i);
-      adjustViewGap(child, i);
-    }
-  }
-
-  private void adjustViewGap(View view, int pos) {
-    if ((mGap < 0 && pos > mGapPosition)
-    || (mGap > 0 && pos < mGapPosition)) {
-      if (mHorizontal) {
-        view.setTranslationX(mGap);
-      } else {
-        view.setTranslationY(mGap);
-      }
-    }
-  }
-
-  private int getViewCenter(View v) {
-    if (mHorizontal) {
-      return v.getLeft() + v.getWidth() / 2;
-    } else {
-      return v.getTop() + v.getHeight() / 2;
-    }
-  }
-
-  private int getScreenCenter() {
-    if (mHorizontal) {
-      return getScrollX() + getWidth() / 2;
-    } else {
-      return getScrollY() + getHeight() / 2;
-    }
-  }
-
-  @Override
-  public void draw(Canvas canvas) {
-    if (mGapPosition > INVALID_POSITION) {
-      adjustGap();
-    }
-    super.draw(canvas);
-  }
-
-  @Override
-  protected View findViewAt(int x, int y) {
-    x += mScrollX;
-    y += mScrollY;
-    final int count = mContentView.getChildCount();
-    for (int i = count - 1; i >= 0; i--) {
-      View child = mContentView.getChildAt(i);
-      if (child.getVisibility() == View.VISIBLE) {
-        if ((x >= child.getLeft()) && (x < child.getRight())
-        && (y >= child.getTop()) && (y < child.getBottom())) {
-          return child;
+        super.setOrientation(orientation);
+    }
+
+    @Override
+    protected void onMeasure(int wspec, int hspec) {
+        super.onMeasure(wspec, hspec);
+        calcPadding();
+    }
+
+    private void calcPadding() {
+        if (mAdapter.getCount() > 0) {
+            View v = mContentView.getChildAt(0);
+            if (mHorizontal) {
+                int pad = (getMeasuredWidth() - v.getMeasuredWidth()) / 2 + 2;
+                mContentView.setPadding(pad, 0, pad, 0);
+            } else {
+                int pad = (getMeasuredHeight() - v.getMeasuredHeight()) / 2 + 2;
+                mContentView.setPadding(0, pad, 0, pad);
+            }
         }
-      }
-    }
-    return null;
-  }
-
-  @Override
-  protected void onOrthoDrag(View v, float distance) {
-    if ((v != null) && (mAnimator == null)) {
-      offsetView(v, distance);
-    }
-  }
-
-  @Override
-  protected void onOrthoDragFinished(View downView) {
-    if (mAnimator != null) return;
-    if (mIsOrthoDragged && downView != null) {
-      // offset
-      float diff = mHorizontal ? downView.getTranslationY() : downView.getTranslationX();
-      if (Math.abs(diff) > (mHorizontal ? downView.getHeight() : downView.getWidth()) / 2) {
-        // remove it
-        animateOut(downView, Math.signum(diff) * mFlingVelocity, diff);
-      } else {
-        // snap back
-        offsetView(downView, 0);
-      }
-    }
-  }
-
-  @Override
-  protected void onOrthoFling(View v, float velocity) {
-    if (v == null) return;
-    if (mAnimator == null && Math.abs(velocity) > mFlingVelocity / 2) {
-      animateOut(v, velocity);
-    } else {
-      offsetView(v, 0);
-    }
-  }
-
-  private void offsetView(View v, float distance) {
-    v.setAlpha(getAlpha(v, distance));
-    if (mHorizontal) {
-      v.setTranslationY(distance);
-    } else {
-      v.setTranslationX(distance);
-    }
-  }
-
-  private float getAlpha(View v, float distance) {
-    return 1 - (float) Math.abs(distance) / (mHorizontal ? v.getHeight() : v.getWidth());
-  }
-
-  private float ease(DecelerateInterpolator inter, float value, float start,
-  float dist, float duration) {
-    return start + dist * inter.getInterpolation(value / duration);
-  }
-
-  @Override
-  protected void onPull(int delta) {
-    boolean layer = false;
-    int count = 2;
-    if (delta == 0 && mPullValue == 0) return;
-    if (delta == 0 && mPullValue != 0) {
-      // reset
-      for (int i = 0; i < count; i++) {
-        View child = mContentView.getChildAt((mPullValue < 0)
-        ? i
-        : mContentView.getChildCount() - 1 - i);
-        if (child == null) break;
-        ObjectAnimator trans = ObjectAnimator.ofFloat(child,
-        mHorizontal ? "translationX" : "translationY",
-        mHorizontal ? getTranslationX() : getTranslationY(),
-        0);
-        ObjectAnimator rot = ObjectAnimator.ofFloat(child,
-        mHorizontal ? "rotationY" : "rotationX",
-        mHorizontal ? getRotationY() : getRotationX(),
-        0);
-        AnimatorSet set = new AnimatorSet();
-        set.playTogether(trans, rot);
-        set.setDuration(100);
-        set.start();
-      }
-      mPullValue = 0;
-    } else {
-      if (mPullValue == 0) {
-        layer = true;
-      }
-      mPullValue += delta;
-    }
-    final int height = mHorizontal ? getWidth() : getHeight();
-    int oscroll = Math.abs(mPullValue);
-    int factor = (mPullValue <= 0) ? 1 : -1;
-    for (int i = 0; i < count; i++) {
-      View child = mContentView.getChildAt((mPullValue < 0)
-      ? i
-      : mContentView.getChildCount() - 1 - i);
-      if (child == null) break;
-      if (layer) {
-      }
-      float k = PULL_FACTOR[i];
-      float rot = -factor * ease(mCubic, oscroll, 0, k * 2, height);
-      int y =  factor * (int) ease(mCubic, oscroll, 0, k*20, height);
-      if (mHorizontal) {
-        child.setTranslationX(y);
-      } else {
-        child.setTranslationY(y);
-      }
-      if (mHorizontal) {
-        child.setRotationY(-rot);
-      } else {
-        child.setRotationX(rot);
-      }
-    }
-  }
-
-  static class ContentLayout extends LinearLayout {
-
-    NavTabScroller mScroller;
-
-    public ContentLayout(Context context, NavTabScroller scroller) {
-      super(context);
-      mScroller = scroller;
+    }
+
+    public void setAdapter(BaseAdapter adapter) {
+        setAdapter(adapter, 0);
+    }
+
+
+    public void setOnRemoveListener(OnRemoveListener l) {
+        mRemoveListener = l;
+    }
+
+    public void setOnLayoutListener(OnLayoutListener l) {
+        mLayoutListener = l;
+    }
+
+    protected void setAdapter(BaseAdapter adapter, int selection) {
+        mAdapter = adapter;
+        mAdapter.registerDataSetObserver(new DataSetObserver() {
+
+            @Override
+            public void onChanged() {
+                super.onChanged();
+                handleDataChanged();
+            }
+
+            @Override
+            public void onInvalidated() {
+                super.onInvalidated();
+            }
+        });
+        handleDataChanged(selection);
+    }
+
+    protected ViewGroup getContentView() {
+        return mContentView;
+    }
+
+    protected int getRelativeChildTop(int ix) {
+        return mContentView.getChildAt(ix).getTop() - mScrollY;
+    }
+
+    protected void handleDataChanged() {
+        handleDataChanged(INVALID_POSITION);
+    }
+
+    void handleDataChanged(int newscroll) {
+        int scroll = getScrollValue();
+        if (mGapAnimator != null) {
+            mGapAnimator.cancel();
+        }
+        mContentView.removeAllViews();
+        for (int i = 0; i < mAdapter.getCount(); i++) {
+            View v = mAdapter.getView(i, null, mContentView);
+            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
+                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
+            lp.gravity = (mHorizontal ? Gravity.CENTER_VERTICAL : Gravity.CENTER_HORIZONTAL);
+            mContentView.addView(v, lp);
+            if (mGapPosition > INVALID_POSITION){
+                adjustViewGap(v, i);
+            }
+        }
+        if (newscroll > INVALID_POSITION) {
+            newscroll = Math.min(mAdapter.getCount() - 1, newscroll);
+            mNeedsScroll = true;
+            mScrollPosition = newscroll;
+            requestLayout();
+        } else {
+            setScrollValue(scroll);
+        }
+    }
+
+    protected void finishScroller() {
+        mScroller.forceFinished(true);
     }
 
     @Override
-    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-      super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-      if (mScroller.getGap() != 0) {
-        View v = getChildAt(0);
-        if (v != null) {
-          if (mScroller.isHorizontal()) {
-            int total = v.getMeasuredWidth() + getMeasuredWidth();
-            setMeasuredDimension(total, getMeasuredHeight());
-          } else {
-            int total = v.getMeasuredHeight() + getMeasuredHeight();
-            setMeasuredDimension(getMeasuredWidth(), total);
-          }
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        super.onLayout(changed, l, t, r, b);
+        if (mNeedsScroll) {
+            mScroller.forceFinished(true);
+            snapToSelected(mScrollPosition, false);
+            mNeedsScroll = false;
         }
+        if (mLayoutListener != null) {
+            mLayoutListener.onLayout(l, t, r, b);
+            mLayoutListener = null;
+        }
+    }
 
-      }
+    void clearTabs() {
+        mContentView.removeAllViews();
     }
 
-  }
+    void snapToSelected(int pos, boolean smooth) {
+        if (pos < 0) return;
+        View v = mContentView.getChildAt(pos);
+        if (v == null) return;
+        int sx = 0;
+        int sy = 0;
+        if (mHorizontal) {
+            sx = (v.getLeft() + v.getRight() - getWidth()) / 2;
+        } else {
+            sy = (v.getTop() + v.getBottom() - getHeight()) / 2;
+        }
+        if ((sx != mScrollX) || (sy != mScrollY)) {
+            if (smooth) {
+                smoothScrollTo(sx,sy);
+            } else {
+                scrollTo(sx, sy);
+            }
+        }
+    }
+
+    protected void animateOut(View v) {
+        if (v == null) return;
+        animateOut(v, -mFlingVelocity);
+    }
+
+    private void animateOut(final View v, float velocity) {
+        float start = mHorizontal ? v.getTranslationY() : v.getTranslationX();
+        animateOut(v, velocity, start);
+    }
+
+    private void animateOut(final View v, float velocity, float start) {
+        if ((v == null) || (mAnimator != null)) return;
+        final int position = mContentView.indexOfChild(v);
+        int target = 0;
+        if (velocity < 0) {
+            target = mHorizontal ? -getHeight() :  -getWidth();
+        } else {
+            target = mHorizontal ? getHeight() : getWidth();
+        }
+        int distance = target - (mHorizontal ? v.getTop() : v.getLeft());
+        long duration = (long) (Math.abs(distance) * 1000 / Math.abs(velocity));
+        int scroll = 0;
+        int translate = 0;
+        int gap = mHorizontal ? v.getWidth() : v.getHeight();
+        int centerView = getViewCenter(v);
+        int centerScreen = getScreenCenter();
+        int newpos = INVALID_POSITION;
+        if (centerView < centerScreen - gap / 2) {
+            // top view
+            scroll = - (centerScreen - centerView - gap);
+            translate = (position > 0) ? gap : 0;
+            newpos = position;
+        } else if (centerView > centerScreen + gap / 2) {
+            // bottom view
+            scroll = - (centerScreen + gap - centerView);
+            if (position < mAdapter.getCount() - 1) {
+                translate = -gap;
+            }
+        } else {
+            // center view
+            scroll = - (centerScreen - centerView);
+            if (position < mAdapter.getCount() - 1) {
+                translate = -gap;
+            } else {
+                scroll -= gap;
+            }
+        }
+        mGapPosition = position;
+        final int pos = newpos;
+        ObjectAnimator trans = ObjectAnimator.ofFloat(v,
+                (mHorizontal ? TRANSLATION_Y : TRANSLATION_X), start, target);
+        ObjectAnimator alpha = ObjectAnimator.ofFloat(v, ALPHA, getAlpha(v,start),
+                getAlpha(v,target));
+        AnimatorSet set1 = new AnimatorSet();
+        set1.playTogether(trans, alpha);
+        set1.setDuration(duration);
+        mAnimator = new AnimatorSet();
+        ObjectAnimator trans2 = null;
+        ObjectAnimator scroll1 = null;
+        if (scroll != 0) {
+            if (mHorizontal) {
+                scroll1 = ObjectAnimator.ofInt(this, "scrollX", getScrollX(), getScrollX() + scroll);
+            } else {
+                scroll1 = ObjectAnimator.ofInt(this, "scrollY", getScrollY(), getScrollY() + scroll);
+            }
+        }
+        if (translate != 0) {
+            trans2 = ObjectAnimator.ofInt(this, "gap", 0, translate);
+        }
+        final int duration2 = 200;
+        if (scroll1 != null) {
+            if (trans2 != null) {
+                AnimatorSet set2 = new AnimatorSet();
+                set2.playTogether(scroll1, trans2);
+                set2.setDuration(duration2);
+                mAnimator.playSequentially(set1, set2);
+            } else {
+                scroll1.setDuration(duration2);
+                mAnimator.playSequentially(set1, scroll1);
+            }
+        } else {
+            if (trans2 != null) {
+                trans2.setDuration(duration2);
+                mAnimator.playSequentially(set1, trans2);
+            }
+        }
+        mAnimator.addListener(new AnimatorListenerAdapter() {
+            public void onAnimationEnd(Animator a) {
+                if (mRemoveListener !=  null) {
+                    mRemoveListener.onRemovePosition(position);
+                    mAnimator = null;
+                    mGapPosition = INVALID_POSITION;
+                    mGap = 0;
+                    handleDataChanged(pos);
+                }
+            }
+        });
+        mAnimator.start();
+    }
+
+    public void setGap(int gap) {
+        if (mGapPosition != INVALID_POSITION) {
+            mGap = gap;
+            postInvalidate();
+        }
+    }
+
+    public int getGap() {
+        return mGap;
+    }
+
+    void adjustGap() {
+        for (int i = 0; i < mContentView.getChildCount(); i++) {
+            final View child = mContentView.getChildAt(i);
+            adjustViewGap(child, i);
+        }
+    }
+
+    private void adjustViewGap(View view, int pos) {
+        if ((mGap < 0 && pos > mGapPosition)
+                || (mGap > 0 && pos < mGapPosition)) {
+            if (mHorizontal) {
+                view.setTranslationX(mGap);
+            } else {
+                view.setTranslationY(mGap);
+            }
+        }
+    }
+
+    private int getViewCenter(View v) {
+        if (mHorizontal) {
+            return v.getLeft() + v.getWidth() / 2;
+        } else {
+            return v.getTop() + v.getHeight() / 2;
+        }
+    }
+
+    private int getScreenCenter() {
+        if (mHorizontal) {
+            return getScrollX() + getWidth() / 2;
+        } else {
+            return getScrollY() + getHeight() / 2;
+        }
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        if (mGapPosition > INVALID_POSITION) {
+            adjustGap();
+        }
+        super.draw(canvas);
+    }
+
+    @Override
+    protected View findViewAt(int x, int y) {
+        x += mScrollX;
+        y += mScrollY;
+        final int count = mContentView.getChildCount();
+        for (int i = count - 1; i >= 0; i--) {
+            View child = mContentView.getChildAt(i);
+            if (child.getVisibility() == View.VISIBLE) {
+                if ((x >= child.getLeft()) && (x < child.getRight())
+                        && (y >= child.getTop()) && (y < child.getBottom())) {
+                    return child;
+                }
+            }
+        }
+        return null;
+    }
+
+    @Override
+    protected void onOrthoDrag(View v, float distance) {
+        if ((v != null) && (mAnimator == null)) {
+            offsetView(v, distance);
+        }
+    }
+
+    @Override
+    protected void onOrthoDragFinished(View downView) {
+        if (mAnimator != null) return;
+        if (mIsOrthoDragged && downView != null) {
+            // offset
+            float diff = mHorizontal ? downView.getTranslationY() : downView.getTranslationX();
+            if (Math.abs(diff) > (mHorizontal ? downView.getHeight() : downView.getWidth()) / 2) {
+                // remove it
+                animateOut(downView, Math.signum(diff) * mFlingVelocity, diff);
+            } else {
+                // snap back
+                offsetView(downView, 0);
+            }
+        }
+    }
+
+    @Override
+    protected void onOrthoFling(View v, float velocity) {
+        if (v == null) return;
+        if (mAnimator == null && Math.abs(velocity) > mFlingVelocity / 2) {
+            animateOut(v, velocity);
+        } else {
+            offsetView(v, 0);
+        }
+    }
+
+    private void offsetView(View v, float distance) {
+        v.setAlpha(getAlpha(v, distance));
+        if (mHorizontal) {
+            v.setTranslationY(distance);
+        } else {
+            v.setTranslationX(distance);
+        }
+    }
+
+    private float getAlpha(View v, float distance) {
+        return 1 - (float) Math.abs(distance) / (mHorizontal ? v.getHeight() : v.getWidth());
+    }
+
+    private float ease(DecelerateInterpolator inter, float value, float start,
+            float dist, float duration) {
+        return start + dist * inter.getInterpolation(value / duration);
+    }
+
+    @Override
+    protected void onPull(int delta) {
+        boolean layer = false;
+        int count = 2;
+        if (delta == 0 && mPullValue == 0) return;
+        if (delta == 0 && mPullValue != 0) {
+            // reset
+            for (int i = 0; i < count; i++) {
+                View child = mContentView.getChildAt((mPullValue < 0)
+                        ? i
+                        : mContentView.getChildCount() - 1 - i);
+                if (child == null) break;
+                ObjectAnimator trans = ObjectAnimator.ofFloat(child,
+                        mHorizontal ? "translationX" : "translationY",
+                                mHorizontal ? getTranslationX() : getTranslationY(),
+                                0);
+                ObjectAnimator rot = ObjectAnimator.ofFloat(child,
+                        mHorizontal ? "rotationY" : "rotationX",
+                                mHorizontal ? getRotationY() : getRotationX(),
+                                0);
+                AnimatorSet set = new AnimatorSet();
+                set.playTogether(trans, rot);
+                set.setDuration(100);
+                set.start();
+            }
+            mPullValue = 0;
+        } else {
+            if (mPullValue == 0) {
+                layer = true;
+            }
+            mPullValue += delta;
+        }
+        final int height = mHorizontal ? getWidth() : getHeight();
+        int oscroll = Math.abs(mPullValue);
+        int factor = (mPullValue <= 0) ? 1 : -1;
+        for (int i = 0; i < count; i++) {
+            View child = mContentView.getChildAt((mPullValue < 0)
+                    ? i
+                    : mContentView.getChildCount() - 1 - i);
+            if (child == null) break;
+            if (layer) {
+            }
+            float k = PULL_FACTOR[i];
+            float rot = -factor * ease(mCubic, oscroll, 0, k * 2, height);
+            int y =  factor * (int) ease(mCubic, oscroll, 0, k*20, height);
+            if (mHorizontal) {
+                child.setTranslationX(y);
+            } else {
+                child.setTranslationY(y);
+            }
+            if (mHorizontal) {
+                child.setRotationY(-rot);
+            } else {
+                child.setRotationX(rot);
+            }
+        }
+    }
+
+    static class ContentLayout extends LinearLayout {
+
+        NavTabScroller mScroller;
+
+        public ContentLayout(Context context, NavTabScroller scroller) {
+            super(context);
+            mScroller = scroller;
+        }
+
+        @Override
+        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+            if (mScroller.getGap() != 0) {
+                View v = getChildAt(0);
+                if (v != null) {
+                    if (mScroller.isHorizontal()) {
+                        int total = v.getMeasuredWidth() + getMeasuredWidth();
+                        setMeasuredDimension(total, getMeasuredHeight());
+                    } else {
+                        int total = v.getMeasuredHeight() + getMeasuredHeight();
+                        setMeasuredDimension(getMeasuredWidth(), total);
+                    }
+                }
+
+            }
+        }
+
+    }
 
 }