diff --git a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
index 75d8745529..207000522e 100644
--- a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
+++ b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import android.Manifest.permission;
+import android.Manifest;
 import android.animation.LayoutTransition;
 import android.annotation.TargetApi;
 import android.app.ActionBar;
@@ -38,7 +38,6 @@ import android.graphics.PorterDuff;
 import android.graphics.RectF;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
-import android.Manifest;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
diff --git a/src/com/android/launcher3/AppWidgetsRestoredReceiver.java b/src/com/android/launcher3/AppWidgetsRestoredReceiver.java
index b1d51ece04..10fdd87466 100644
--- a/src/com/android/launcher3/AppWidgetsRestoredReceiver.java
+++ b/src/com/android/launcher3/AppWidgetsRestoredReceiver.java
@@ -13,7 +13,6 @@ import android.os.AsyncTask;
 import android.util.Log;
 
 import com.android.launcher3.LauncherSettings.Favorites;
-import com.android.launcher3.compat.AppWidgetManagerCompat;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/com/android/launcher3/DeleteDropTarget.java b/src/com/android/launcher3/DeleteDropTarget.java
index ae6e3ba0b2..bf5bc178e7 100644
--- a/src/com/android/launcher3/DeleteDropTarget.java
+++ b/src/com/android/launcher3/DeleteDropTarget.java
@@ -111,7 +111,6 @@ public class DeleteDropTarget extends ButtonDropTarget {
     public void onFlingToDelete(final DragObject d, PointF vel) {
         // Don't highlight the icon as it's animating
         d.dragView.setColor(0);
-        d.dragView.updateInitialScaleToCurrentScale();
 
         final DragLayer dragLayer = mLauncher.getDragLayer();
         FlingAnimation fling = new FlingAnimation(d, vel,
diff --git a/src/com/android/launcher3/DragView.java b/src/com/android/launcher3/DragView.java
index 89577353bd..c9dc9f1c66 100644
--- a/src/com/android/launcher3/DragView.java
+++ b/src/com/android/launcher3/DragView.java
@@ -21,6 +21,7 @@ import android.animation.AnimatorListenerAdapter;
 import android.animation.FloatArrayEvaluator;
 import android.animation.ValueAnimator;
 import android.animation.ValueAnimator.AnimatorUpdateListener;
+import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
@@ -34,9 +35,7 @@ import android.graphics.Rect;
 import android.os.Build;
 import android.view.View;
 import android.view.animation.DecelerateInterpolator;
-
 import com.android.launcher3.util.Thunk;
-
 import java.util.Arrays;
 
 public class DragView extends View {
@@ -53,12 +52,11 @@ public class DragView extends View {
     private Point mDragVisualizeOffset = null;
     private Rect mDragRegion = null;
     private final DragLayer mDragLayer;
-    private final DragController mDragController;
+    @Thunk final DragController mDragController;
     private boolean mHasDrawn = false;
     @Thunk float mCrossFadeProgress = 0f;
 
     ValueAnimator mAnim;
-    private float mInitialScale = 1f;
     // The intrinsic icon scale factor is the scale factor for a drag icon over the workspace
     // size.  This is ignored for non-icons.
     private float mIntrinsicIconScale = 1f;
@@ -83,7 +81,6 @@ public class DragView extends View {
         super(launcher);
         mDragLayer = launcher.getDragLayer();
         mDragController = launcher.getDragController();
-        mInitialScale = initialScale;
 
         final Resources res = getResources();
         final float scaleDps = res.getDimensionPixelSize(R.dimen.dragViewScale);
@@ -178,16 +175,13 @@ public class DragView extends View {
         return mDragRegion;
     }
 
-    public void updateInitialScaleToCurrentScale() {
-        mInitialScale = getScaleX();
-    }
-
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         setMeasuredDimension(mBitmap.getWidth(), mBitmap.getHeight());
     }
 
     // Draws drag shadow for system DND.
+    @SuppressLint("WrongCall")
     public void drawDragShadow(Canvas canvas) {
         final int saveCount = canvas.save(Canvas.MATRIX_SAVE_FLAG);
         canvas.scale(getScaleX(), getScaleY());
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index 17fdeb1dc8..a9cff5e653 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -17,8 +17,6 @@
 package com.android.launcher3;
 
 import android.content.Context;
-import android.content.res.Configuration;
-import android.content.res.Resources;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.util.AttributeSet;
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index f2613875c6..3ceca94170 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -20,7 +20,6 @@ import android.app.SearchManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.os.UserManager;
 import android.util.Log;
 
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 03c87116c2..b390f13ac0 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -34,7 +34,6 @@ import android.content.pm.ResolveInfo;
 import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Environment;
 import android.os.Handler;
 import android.os.HandlerThread;
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 0599714057..3ce16c5a9b 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -1101,10 +1101,6 @@ public class LauncherProvider extends ContentProvider {
                                 = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
                         final int cellYIndex
                                 = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
-                        final int uriIndex
-                                = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI);
-                        final int displayModeIndex
-                                = c.getColumnIndexOrThrow(LauncherSettings.Favorites.DISPLAY_MODE);
                         final int profileIndex
                                 = c.getColumnIndex(LauncherSettings.Favorites.PROFILE_ID);
 
@@ -1223,9 +1219,6 @@ public class LauncherProvider extends ContentProvider {
                                     c.getString(iconResourceIndex));
                             values.put(LauncherSettings.Favorites.ITEM_TYPE, itemType);
                             values.put(LauncherSettings.Favorites.APPWIDGET_ID, -1);
-                            values.put(LauncherSettings.Favorites.URI, c.getString(uriIndex));
-                            values.put(LauncherSettings.Favorites.DISPLAY_MODE,
-                                    c.getInt(displayModeIndex));
                             values.put(LauncherSettings.Favorites.PROFILE_ID, userSerialNumber);
 
                             if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
diff --git a/src/com/android/launcher3/ShortcutAndWidgetContainer.java b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
index 157b48a397..20c27735e5 100644
--- a/src/com/android/launcher3/ShortcutAndWidgetContainer.java
+++ b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
@@ -18,12 +18,9 @@ package com.android.launcher3;
 
 import android.app.WallpaperManager;
 import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Paint;
 import android.graphics.Rect;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewGroup.LayoutParams;
 
 public class ShortcutAndWidgetContainer extends ViewGroup {
     static final String TAG = "CellLayoutChildren";
@@ -43,7 +40,6 @@ public class ShortcutAndWidgetContainer extends ViewGroup {
     private int mHeightGap;
 
     private int mCountX;
-    private int mCountY;
 
     private Launcher mLauncher;
 
@@ -62,7 +58,6 @@ public class ShortcutAndWidgetContainer extends ViewGroup {
         mWidthGap = widthGap;
         mHeightGap = heightGap;
         mCountX = countX;
-        mCountY = countY;
     }
 
     public View getChildAt(int x, int y) {
@@ -79,24 +74,6 @@ public class ShortcutAndWidgetContainer extends ViewGroup {
         return null;
     }
 
-    @Override
-    protected void dispatchDraw(Canvas canvas) {
-        @SuppressWarnings("all") // suppress dead code warning
-        final boolean debug = false;
-        if (debug) {
-            // Debug drawing for hit space
-            Paint p = new Paint();
-            p.setColor(0x6600FF00);
-            for (int i = getChildCount() - 1; i >= 0; i--) {
-                final View child = getChildAt(i);
-                final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
-
-                canvas.drawRect(lp.x, lp.y, lp.x + lp.width, lp.y + lp.height, p);
-            }
-        }
-        super.dispatchDraw(canvas);
-    }
-
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         int count = getChildCount();
@@ -238,7 +215,6 @@ public class ShortcutAndWidgetContainer extends ViewGroup {
         }
     }
 
-    @Override
     protected void setChildrenDrawnWithCacheEnabled(boolean enabled) {
         super.setChildrenDrawnWithCacheEnabled(enabled);
     }
diff --git a/src/com/android/launcher3/StylusEventHelper.java b/src/com/android/launcher3/StylusEventHelper.java
index da46e6a548..54c5509d90 100644
--- a/src/com/android/launcher3/StylusEventHelper.java
+++ b/src/com/android/launcher3/StylusEventHelper.java
@@ -1,8 +1,5 @@
 package com.android.launcher3;
 
-import com.android.launcher3.Utilities;
-
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
diff --git a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
index f7c4489be2..affd32aff2 100644
--- a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
+++ b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
@@ -317,7 +317,7 @@ public class AllAppsGridAdapter extends RecyclerView.Adapter<AllAppsGridAdapter.
         }
     }
 
-    private Launcher mLauncher;
+    @Thunk Launcher mLauncher;
     private LayoutInflater mLayoutInflater;
     @Thunk AlphabeticalAppsList mApps;
     private GridLayoutManager mGridLayoutMgr;
@@ -340,9 +340,9 @@ public class AllAppsGridAdapter extends RecyclerView.Adapter<AllAppsGridAdapter.
     // each time the search query changes.
     private String mMarketSearchMessage;
     // The intent to send off to the market app, updated each time the search query changes.
-    private Intent mMarketSearchIntent;
+    @Thunk Intent mMarketSearchIntent;
     // The last query that the user entered into the search field
-    private String mLastSearchQuery;
+    @Thunk String mLastSearchQuery;
 
     // Section drawing
     @Thunk int mSectionNamesMargin;
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 5aa973a155..a46af5e093 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -27,7 +27,6 @@ import com.android.launcher3.BaseRecyclerView;
 import com.android.launcher3.BaseRecyclerViewFastScrollBar;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Stats;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.util.Thunk;
 
 import java.util.List;
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerViewContainerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerViewContainerView.java
index 14e2a1863e..09a7d59bf9 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerViewContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerViewContainerView.java
@@ -17,17 +17,15 @@ package com.android.launcher3.allapps;
 
 import android.content.Context;
 import android.graphics.Bitmap;
-import android.graphics.Canvas;
 import android.util.AttributeSet;
-import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
+
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.BubbleTextView.BubbleTextShadowHandler;
 import com.android.launcher3.ClickShadowView;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
 
 /**
  * A container for RecyclerView to allow for the click shadow view to be shown behind an icon that
diff --git a/src/com/android/launcher3/allapps/AllAppsSearchBarController.java b/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
index 2b363c0cbe..d853d5b8d8 100644
--- a/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
+++ b/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
@@ -15,7 +15,6 @@
  */
 package com.android.launcher3.allapps;
 
-import android.content.ComponentName;
 import android.graphics.Rect;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index ffe39cdd39..cf53aa60e0 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -16,7 +16,6 @@
 package com.android.launcher3.allapps;
 
 import android.content.Context;
-import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 
 import com.android.launcher3.AppInfo;
@@ -182,14 +181,13 @@ public class AlphabeticalAppsList {
     // The of ordered component names as a result of a search query
     private ArrayList<ComponentKey> mSearchResults;
     private HashMap<CharSequence, String> mCachedSectionNames = new HashMap<>();
-    private RecyclerView.Adapter mAdapter;
+    private AllAppsGridAdapter mAdapter;
     private AlphabeticIndexCompat mIndexer;
     private AppNameComparator mAppNameComparator;
     private MergeAlgorithm mMergeAlgorithm;
     private int mNumAppsPerRow;
     private int mNumPredictedAppsPerRow;
     private int mNumAppRowsInAdapter;
-    private boolean mDisableEmptyText;
 
     public AlphabeticalAppsList(Context context) {
         mLauncher = (Launcher) context;
@@ -212,17 +210,10 @@ public class AlphabeticalAppsList {
     /**
      * Sets the adapter to notify when this dataset changes.
      */
-    public void setAdapter(RecyclerView.Adapter adapter) {
+    public void setAdapter(AllAppsGridAdapter adapter) {
         mAdapter = adapter;
     }
 
-    /**
-     * Disables the empty text message when there are no search results.
-     */
-    public void disableEmptyText() {
-        mDisableEmptyText = true;
-    }
-
     /**
      * Returns all the apps.
      */
diff --git a/src/com/android/launcher3/util/FocusLogic.java b/src/com/android/launcher3/util/FocusLogic.java
index 696eabe002..1c6efbcf61 100644
--- a/src/com/android/launcher3/util/FocusLogic.java
+++ b/src/com/android/launcher3/util/FocusLogic.java
@@ -22,9 +22,6 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import com.android.launcher3.CellLayout;
-import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.ShortcutAndWidgetContainer;
 
 import java.util.Arrays;
diff --git a/src/com/android/launcher3/widget/WidgetsListAdapter.java b/src/com/android/launcher3/widget/WidgetsListAdapter.java
index a54626a391..8443003de6 100644
--- a/src/com/android/launcher3/widget/WidgetsListAdapter.java
+++ b/src/com/android/launcher3/widget/WidgetsListAdapter.java
@@ -27,7 +27,6 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
-import android.view.ViewGroup.MarginLayoutParams;
 import android.widget.LinearLayout;
 
 import com.android.launcher3.BubbleTextView;
diff --git a/src/com/android/launcher3/widget/WidgetsRowViewHolder.java b/src/com/android/launcher3/widget/WidgetsRowViewHolder.java
index 249559ab9f..19bc868a42 100644
--- a/src/com/android/launcher3/widget/WidgetsRowViewHolder.java
+++ b/src/com/android/launcher3/widget/WidgetsRowViewHolder.java
@@ -16,10 +16,7 @@
 package com.android.launcher3.widget;
 
 import android.support.v7.widget.RecyclerView.ViewHolder;
-import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.TextView;
 
 public class WidgetsRowViewHolder extends ViewHolder {