Removing all compatibility code below Lollipop

Bug: 32745285
Change-Id: I62971908e3e4402941fab627bbdfd47be64473a3

15 files changed, 63 insertions, 707 deletions

diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompat.java b/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
index 5388f2a3c..af43c02a7 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
@@ -23,13 +23,10 @@ import android.appwidget.AppWidgetProviderInfo;
 import android.content.ComponentName;
 import android.content.Context;
 import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.os.UserHandle;
 
-import com.android.launcher3.IconCache;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.util.ComponentKey;
 
 import java.util.HashMap;
@@ -40,15 +37,10 @@ public abstract class AppWidgetManagerCompat {
     private static final Object sInstanceLock = new Object();
     private static AppWidgetManagerCompat sInstance;
 
-
     public static AppWidgetManagerCompat getInstance(Context context) {
         synchronized (sInstanceLock) {
             if (sInstance == null) {
-                if (Utilities.ATLEAST_LOLLIPOP) {
-                    sInstance = new AppWidgetManagerCompatVL(context.getApplicationContext());
-                } else {
-                    sInstance = new AppWidgetManagerCompatV16(context.getApplicationContext());
-                }
+                sInstance = new AppWidgetManagerCompatVL(context.getApplicationContext());
             }
             return sInstance;
         }
@@ -73,20 +65,12 @@ public abstract class AppWidgetManagerCompat {
 
     public abstract List<AppWidgetProviderInfo> getAllProviders();
 
-    public abstract String loadLabel(LauncherAppWidgetProviderInfo info);
-
     public abstract boolean bindAppWidgetIdIfAllowed(
             int appWidgetId, AppWidgetProviderInfo info, Bundle options);
 
-    public abstract UserHandle getUser(LauncherAppWidgetProviderInfo info);
-
     public abstract void startConfigActivity(AppWidgetProviderInfo info, int widgetId,
             Activity activity, AppWidgetHost host, int requestCode);
 
-    public abstract Drawable loadPreview(AppWidgetProviderInfo info);
-
-    public abstract Drawable loadIcon(LauncherAppWidgetProviderInfo info, IconCache cache);
-
     public abstract Bitmap getBadgeBitmap(LauncherAppWidgetProviderInfo info, Bitmap bitmap,
             int imageWidth, int imageHeight);
 
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompatV16.java b/src/com/android/launcher3/compat/AppWidgetManagerCompatV16.java
deleted file mode 100644
index e7d8e2943..000000000
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompatV16.java
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import android.annotation.TargetApi;
-import android.app.Activity;
-import android.appwidget.AppWidgetHost;
-import android.appwidget.AppWidgetManager;
-import android.appwidget.AppWidgetProviderInfo;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Process;
-import android.os.UserHandle;
-
-import com.android.launcher3.IconCache;
-import com.android.launcher3.LauncherAppWidgetProviderInfo;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.util.ComponentKey;
-
-import java.util.HashMap;
-import java.util.List;
-
-class AppWidgetManagerCompatV16 extends AppWidgetManagerCompat {
-
-    AppWidgetManagerCompatV16(Context context) {
-        super(context);
-    }
-
-    @Override
-    public List<AppWidgetProviderInfo> getAllProviders() {
-        return mAppWidgetManager.getInstalledProviders();
-    }
-
-    @Override
-    public String loadLabel(LauncherAppWidgetProviderInfo info) {
-        return Utilities.trim(info.label);
-    }
-
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    @Override
-    public boolean bindAppWidgetIdIfAllowed(int appWidgetId, AppWidgetProviderInfo info,
-            Bundle options) {
-        if (Utilities.ATLEAST_JB_MR1) {
-            return mAppWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, info.provider, options);
-        } else {
-            return mAppWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, info.provider);
-        }
-    }
-
-    @Override
-    public UserHandle getUser(LauncherAppWidgetProviderInfo info) {
-        return Process.myUserHandle();
-    }
-
-    @Override
-    public void startConfigActivity(AppWidgetProviderInfo info, int widgetId, Activity activity,
-            AppWidgetHost host, int requestCode) {
-        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
-        intent.setComponent(info.configure);
-        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
-        Utilities.startActivityForResultSafely(activity, intent, requestCode);
-    }
-
-    @Override
-    public Drawable loadPreview(AppWidgetProviderInfo info) {
-        return mContext.getPackageManager().getDrawable(
-                info.provider.getPackageName(), info.previewImage, null);
-    }
-
-    @Override
-    public Drawable loadIcon(LauncherAppWidgetProviderInfo info, IconCache cache) {
-        return cache.getFullResIcon(info.provider.getPackageName(), info.icon);
-    }
-
-    @Override
-    public Bitmap getBadgeBitmap(LauncherAppWidgetProviderInfo info, Bitmap bitmap,
-            int imageWidth, int imageHeight) {
-        return bitmap;
-    }
-
-    @Override
-    public LauncherAppWidgetProviderInfo findProvider(
-            ComponentName provider, UserHandle user) {
-        for (AppWidgetProviderInfo info : mAppWidgetManager.getInstalledProviders()) {
-            if (info.provider.equals(provider)) {
-                return LauncherAppWidgetProviderInfo.fromProviderInfo(mContext, info);
-            }
-        }
-        return null;
-    }
-
-    @Override
-    public HashMap<ComponentKey, AppWidgetProviderInfo> getAllProvidersMap() {
-        HashMap<ComponentKey, AppWidgetProviderInfo> result = new HashMap<>();
-        UserHandle user = Process.myUserHandle();
-        for (AppWidgetProviderInfo info : mAppWidgetManager.getInstalledProviders()) {
-            result.put(new ComponentKey(info.provider, user), info);
-        }
-        return result;
-    }
-}
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
index 0acf75373..56a7f46c0 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
@@ -16,7 +16,6 @@
 
 package com.android.launcher3.compat;
 
-import android.annotation.TargetApi;
 import android.app.Activity;
 import android.appwidget.AppWidgetHost;
 import android.appwidget.AppWidgetProviderInfo;
@@ -31,15 +30,12 @@ import android.graphics.Color;
 import android.graphics.Rect;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
-import android.os.Build;
 import android.os.Bundle;
-import android.os.Process;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.view.View;
 import android.widget.Toast;
 
-import com.android.launcher3.IconCache;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.util.ComponentKey;
@@ -48,7 +44,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
 class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
 
     private final UserManager mUserManager;
@@ -70,11 +65,6 @@ class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
     }
 
     @Override
-    public String loadLabel(LauncherAppWidgetProviderInfo info) {
-        return info.getLabel(mPm);
-    }
-
-    @Override
     public boolean bindAppWidgetIdIfAllowed(int appWidgetId, AppWidgetProviderInfo info,
             Bundle options) {
         return mAppWidgetManager.bindAppWidgetIdIfAllowed(
@@ -82,14 +72,6 @@ class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
     }
 
     @Override
-    public UserHandle getUser(LauncherAppWidgetProviderInfo info) {
-        if (info.isCustomWidget) {
-            return Process.myUserHandle();
-        }
-        return info.getProfile();
-    }
-
-    @Override
     public void startConfigActivity(AppWidgetProviderInfo info, int widgetId, Activity activity,
             AppWidgetHost host, int requestCode) {
         try {
@@ -100,16 +82,6 @@ class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
     }
 
     @Override
-    public Drawable loadPreview(AppWidgetProviderInfo info) {
-        return info.loadPreviewImage(mContext, 0);
-    }
-
-    @Override
-    public Drawable loadIcon(LauncherAppWidgetProviderInfo info, IconCache cache) {
-        return info.getIcon(mContext, cache);
-    }
-
-    @Override
     public Bitmap getBadgeBitmap(LauncherAppWidgetProviderInfo info, Bitmap bitmap,
             int imageWidth, int imageHeight) {
         if (info.isCustomWidget || info.getProfile().equals(android.os.Process.myUserHandle())) {
diff --git a/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java b/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java
deleted file mode 100644
index d6978030f..000000000
--- a/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.pm.ActivityInfo;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.content.pm.ResolveInfo;
-import android.content.res.Resources;
-import android.graphics.drawable.Drawable;
-import android.os.Process;
-import android.os.UserHandle;
-
-
-public class LauncherActivityInfoCompatV16 extends LauncherActivityInfoCompat {
-    private final ResolveInfo mResolveInfo;
-    private final ActivityInfo mActivityInfo;
-    private final ComponentName mComponentName;
-    private final PackageManager mPm;
-
-    LauncherActivityInfoCompatV16(Context context, ResolveInfo info) {
-        super();
-        mResolveInfo = info;
-        mActivityInfo = info.activityInfo;
-        mComponentName = new ComponentName(mActivityInfo.packageName, mActivityInfo.name);
-        mPm = context.getPackageManager();
-    }
-
-    public ComponentName getComponentName() {
-        return mComponentName;
-    }
-
-    public UserHandle getUser() {
-        return Process.myUserHandle();
-    }
-
-    public CharSequence getLabel() {
-        return mResolveInfo.loadLabel(mPm);
-    }
-
-    public Drawable getIcon(int density) {
-        int iconRes = mResolveInfo.getIconResource();
-        Resources resources = null;
-        Drawable icon = null;
-        // Get the preferred density icon from the app's resources
-        if (density != 0 && iconRes != 0) {
-            try {
-                resources = mPm.getResourcesForApplication(mActivityInfo.applicationInfo);
-                icon = resources.getDrawableForDensity(iconRes, density);
-            } catch (NameNotFoundException | Resources.NotFoundException exc) {
-            }
-        }
-        // Get the default density icon
-        if (icon == null) {
-            icon = mResolveInfo.loadIcon(mPm);
-        }
-        if (icon == null) {
-            resources = Resources.getSystem();
-            icon = resources.getDrawableForDensity(android.R.mipmap.sym_def_app_icon, density);
-        }
-        return icon;
-    }
-
-    public ApplicationInfo getApplicationInfo() {
-        return mActivityInfo.applicationInfo;
-    }
-
-    public long getFirstInstallTime() {
-        try {
-            PackageInfo info = mPm.getPackageInfo(mActivityInfo.packageName, 0);
-            return info != null ? info.firstInstallTime : 0;
-        } catch (NameNotFoundException e) {
-            return 0;
-        }
-    }
-
-    public String getName() {
-        return mActivityInfo.name;
-    }
-}
diff --git a/src/com/android/launcher3/compat/LauncherActivityInfoCompatVL.java b/src/com/android/launcher3/compat/LauncherActivityInfoCompatVL.java
index 874b3c3ac..c3b959273 100644
--- a/src/com/android/launcher3/compat/LauncherActivityInfoCompatVL.java
+++ b/src/com/android/launcher3/compat/LauncherActivityInfoCompatVL.java
@@ -16,15 +16,12 @@
 
 package com.android.launcher3.compat;
 
-import android.annotation.TargetApi;
 import android.content.ComponentName;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
 import android.graphics.drawable.Drawable;
-import android.os.Build;
 import android.os.UserHandle;
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
 public class LauncherActivityInfoCompatVL extends LauncherActivityInfoCompat {
     private LauncherActivityInfo mLauncherActivityInfo;
 
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompat.java b/src/com/android/launcher3/compat/LauncherAppsCompat.java
index c75298b0d..73ab36c8a 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompat.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompat.java
@@ -23,7 +23,6 @@ import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.UserHandle;
 
-import com.android.launcher3.Utilities;
 import com.android.launcher3.shortcuts.ShortcutInfoCompat;
 
 import java.util.List;
@@ -51,11 +50,7 @@ public abstract class LauncherAppsCompat {
     public static LauncherAppsCompat getInstance(Context context) {
         synchronized (sInstanceLock) {
             if (sInstance == null) {
-                if (Utilities.ATLEAST_LOLLIPOP) {
-                    sInstance = new LauncherAppsCompatVL(context.getApplicationContext());
-                } else {
-                    sInstance = new LauncherAppsCompatV16(context.getApplicationContext());
-                }
+                sInstance = new LauncherAppsCompatVL(context.getApplicationContext());
             }
             return sInstance;
         }
@@ -73,5 +68,4 @@ public abstract class LauncherAppsCompat {
     public abstract boolean isPackageEnabledForProfile(String packageName, UserHandle user);
     public abstract boolean isActivityEnabledForProfile(ComponentName component,
             UserHandle user);
-    public abstract boolean isPackageSuspendedForProfile(String packageName, UserHandle user);
 }
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatV16.java b/src/com/android/launcher3/compat/LauncherAppsCompatV16.java
deleted file mode 100644
index 0d1efa85e..000000000
--- a/src/com/android/launcher3/compat/LauncherAppsCompatV16.java
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import android.content.BroadcastReceiver;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.pm.ActivityInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.content.pm.ResolveInfo;
-import android.graphics.Rect;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Process;
-import android.os.UserHandle;
-import android.provider.Settings;
-
-import com.android.launcher3.Utilities;
-import com.android.launcher3.util.PackageManagerHelper;
-import com.android.launcher3.util.Thunk;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Version of {@link LauncherAppsCompat} for devices with API level 16.
- * Devices Pre-L don't support multiple profiles in one launcher so
- * user parameters are ignored and all methods operate on the current user.
- */
-public class LauncherAppsCompatV16 extends LauncherAppsCompat {
-
-    private PackageManager mPm;
-    private Context mContext;
-    private List<OnAppsChangedCallbackCompat> mCallbacks
-            = new ArrayList<OnAppsChangedCallbackCompat>();
-    private PackageMonitor mPackageMonitor;
-
-    LauncherAppsCompatV16(Context context) {
-        mPm = context.getPackageManager();
-        mContext = context;
-        mPackageMonitor = new PackageMonitor();
-   }
-
-    public List<LauncherActivityInfoCompat> getActivityList(String packageName,
-            UserHandle user) {
-        final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
-        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
-        mainIntent.setPackage(packageName);
-        List<ResolveInfo> infos = mPm.queryIntentActivities(mainIntent, 0);
-        List<LauncherActivityInfoCompat> list =
-                new ArrayList<LauncherActivityInfoCompat>(infos.size());
-        for (ResolveInfo info : infos) {
-            list.add(new LauncherActivityInfoCompatV16(mContext, info));
-        }
-        return list;
-    }
-
-    public LauncherActivityInfoCompat resolveActivity(Intent intent, UserHandle user) {
-        ResolveInfo info = mPm.resolveActivity(intent, 0);
-        if (info != null) {
-            return new LauncherActivityInfoCompatV16(mContext, info);
-        }
-        return null;
-    }
-
-    public void startActivityForProfile(ComponentName component, UserHandle user,
-            Rect sourceBounds, Bundle opts) {
-        Intent launchIntent = new Intent(Intent.ACTION_MAIN);
-        launchIntent.addCategory(Intent.CATEGORY_LAUNCHER);
-        launchIntent.setComponent(component);
-        launchIntent.setSourceBounds(sourceBounds);
-        launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        mContext.startActivity(launchIntent, opts);
-    }
-
-    public void showAppDetailsForProfile(ComponentName component, UserHandle user) {
-        String packageName = component.getPackageName();
-        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
-                Uri.fromParts("package", packageName, null));
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK |
-                Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
-        mContext.startActivity(intent, null);
-    }
-
-    public synchronized void addOnAppsChangedCallback(OnAppsChangedCallbackCompat callback) {
-        if (callback != null && !mCallbacks.contains(callback)) {
-            mCallbacks.add(callback);
-            if (mCallbacks.size() == 1) {
-                registerForPackageIntents();
-            }
-        }
-    }
-
-    public synchronized void removeOnAppsChangedCallback(OnAppsChangedCallbackCompat callback) {
-        mCallbacks.remove(callback);
-        if (mCallbacks.size() == 0) {
-            unregisterForPackageIntents();
-        }
-    }
-
-    public boolean isPackageEnabledForProfile(String packageName, UserHandle user) {
-        return PackageManagerHelper.isAppEnabled(mPm, packageName);
-    }
-
-    public boolean isActivityEnabledForProfile(ComponentName component, UserHandle user) {
-        try {
-            ActivityInfo info = mPm.getActivityInfo(component, 0);
-            return info != null && info.isEnabled();
-        } catch (NameNotFoundException e) {
-            return false;
-        }
-    }
-
-    public boolean isPackageSuspendedForProfile(String packageName, UserHandle user) {
-        return false;
-    }
-
-    private void unregisterForPackageIntents() {
-        mContext.unregisterReceiver(mPackageMonitor);
-    }
-
-    private void registerForPackageIntents() {
-        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
-        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
-        filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
-        filter.addDataScheme("package");
-        mContext.registerReceiver(mPackageMonitor, filter);
-        filter = new IntentFilter();
-        filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE);
-        filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
-        mContext.registerReceiver(mPackageMonitor, filter);
-    }
-
-    @Thunk synchronized List<OnAppsChangedCallbackCompat> getCallbacks() {
-        return new ArrayList<OnAppsChangedCallbackCompat>(mCallbacks);
-    }
-
-    @Thunk class PackageMonitor extends BroadcastReceiver {
-        public void onReceive(Context context, Intent intent) {
-            final String action = intent.getAction();
-            final UserHandle user = Process.myUserHandle();
-
-            if (Intent.ACTION_PACKAGE_CHANGED.equals(action)
-                    || Intent.ACTION_PACKAGE_REMOVED.equals(action)
-                    || Intent.ACTION_PACKAGE_ADDED.equals(action)) {
-                final String packageName = intent.getData().getSchemeSpecificPart();
-                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
-
-                if (packageName == null || packageName.length() == 0) {
-                    // they sent us a bad intent
-                    return;
-                }
-                if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) {
-                    for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                        callback.onPackageChanged(packageName, user);
-                    }
-                } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
-                    if (!replacing) {
-                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                            callback.onPackageRemoved(packageName, user);
-                        }
-                    }
-                    // else, we are replacing the package, so a PACKAGE_ADDED will be sent
-                    // later, we will update the package at this time
-                } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
-                    if (!replacing) {
-                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                            callback.onPackageAdded(packageName, user);
-                        }
-                    } else {
-                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                            callback.onPackageChanged(packageName, user);
-                        }
-                    }
-                }
-            } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) {
-                // EXTRA_REPLACING is available Kitkat onwards. For lower devices, it is broadcasted
-                // when moving a package or mounting/un-mounting external storage. Assume that
-                // it is a replacing operation.
-                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING,
-                        !Utilities.ATLEAST_KITKAT);
-                String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
-                for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                    callback.onPackagesAvailable(packages, user, replacing);
-                }
-            } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) {
-                // This intent is broadcasted when moving a package or mounting/un-mounting
-                // external storage.
-                // However on Kitkat this is also sent when a package is being updated, and
-                // contains an extra Intent.EXTRA_REPLACING=true for that case.
-                // Using false as default for Intent.EXTRA_REPLACING gives correct value on
-                // lower devices as the intent is not sent when the app is updating/replacing.
-                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
-                String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
-                for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
-                    callback.onPackagesUnavailable(packages, user, replacing);
-                }
-            }
-        }
-    }
-}
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatVL.java b/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
index f408da0aa..60f9fabf0 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
@@ -16,7 +16,6 @@
 
 package com.android.launcher3.compat;
 
-import android.annotation.TargetApi;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -24,7 +23,6 @@ import android.content.pm.LauncherActivityInfo;
 import android.content.pm.LauncherApps;
 import android.content.pm.ShortcutInfo;
 import android.graphics.Rect;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.UserHandle;
 
@@ -36,32 +34,30 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
-public class LauncherAppsCompatVL extends LauncherAppsCompatV16 {
+public class LauncherAppsCompatVL extends LauncherAppsCompat {
 
     protected LauncherApps mLauncherApps;
 
-    private Map<OnAppsChangedCallbackCompat, WrappedCallback> mCallbacks
-            = new HashMap<OnAppsChangedCallbackCompat, WrappedCallback>();
+    private Map<OnAppsChangedCallbackCompat, WrappedCallback> mCallbacks = new HashMap<>();
 
     LauncherAppsCompatVL(Context context) {
-        super(context);
-        mLauncherApps = (LauncherApps) context.getSystemService("launcherapps");
+        mLauncherApps = (LauncherApps) context.getSystemService(Context.LAUNCHER_APPS_SERVICE);
     }
 
+    @Override
     public List<LauncherActivityInfoCompat> getActivityList(String packageName, UserHandle user) {
         List<LauncherActivityInfo> list = mLauncherApps.getActivityList(packageName, user);
         if (list.size() == 0) {
             return Collections.emptyList();
         }
-        ArrayList<LauncherActivityInfoCompat> compatList =
-                new ArrayList<LauncherActivityInfoCompat>(list.size());
+        ArrayList<LauncherActivityInfoCompat> compatList = new ArrayList<>(list.size());
         for (LauncherActivityInfo info : list) {
             compatList.add(new LauncherActivityInfoCompatVL(info));
         }
         return compatList;
     }
 
+    @Override
     public LauncherActivityInfoCompat resolveActivity(Intent intent, UserHandle user) {
         LauncherActivityInfo activity = mLauncherApps.resolveActivity(intent, user);
         if (activity != null) {
@@ -71,15 +67,18 @@ public class LauncherAppsCompatVL extends LauncherAppsCompatV16 {
         }
     }
 
+    @Override
     public void startActivityForProfile(ComponentName component, UserHandle user,
             Rect sourceBounds, Bundle opts) {
         mLauncherApps.startMainActivity(component, user, sourceBounds, opts);
     }
 
+    @Override
     public void showAppDetailsForProfile(ComponentName component, UserHandle user) {
         mLauncherApps.startAppDetailsActivity(component, user, null, null);
     }
 
+    @Override
     public void addOnAppsChangedCallback(LauncherAppsCompat.OnAppsChangedCallbackCompat callback) {
         WrappedCallback wrappedCallback = new WrappedCallback(callback);
         synchronized (mCallbacks) {
@@ -88,9 +87,9 @@ public class LauncherAppsCompatVL extends LauncherAppsCompatV16 {
         mLauncherApps.registerCallback(wrappedCallback);
     }
 
-    public void removeOnAppsChangedCallback(
-            LauncherAppsCompat.OnAppsChangedCallbackCompat callback) {
-        WrappedCallback wrappedCallback = null;
+    @Override
+    public void removeOnAppsChangedCallback(OnAppsChangedCallbackCompat callback) {
+        final WrappedCallback wrappedCallback;
         synchronized (mCallbacks) {
             wrappedCallback = mCallbacks.remove(callback);
         }
@@ -99,18 +98,16 @@ public class LauncherAppsCompatVL extends LauncherAppsCompatV16 {
         }
     }
 
+    @Override
     public boolean isPackageEnabledForProfile(String packageName, UserHandle user) {
         return mLauncherApps.isPackageEnabled(packageName, user);
     }
 
+    @Override
     public boolean isActivityEnabledForProfile(ComponentName component, UserHandle user) {
         return mLauncherApps.isActivityEnabled(component, user);
     }
 
-    public boolean isPackageSuspendedForProfile(String packageName, UserHandle user) {
-        return false;
-    }
-
     private static class WrappedCallback extends LauncherApps.Callback {
         private LauncherAppsCompat.OnAppsChangedCallbackCompat mCallback;
 
@@ -147,7 +144,6 @@ public class LauncherAppsCompatVL extends LauncherAppsCompatV16 {
             mCallback.onPackagesUnsuspended(packageNames, user);
         }
 
-        @Override
         public void onShortcutsChanged(String packageName, List<ShortcutInfo> shortcuts,
                 UserHandle user) {
             List<ShortcutInfoCompat> shortcutInfoCompats = new ArrayList<>(shortcuts.size());
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompat.java b/src/com/android/launcher3/compat/PackageInstallerCompat.java
index ec5014d7c..c7fe0cec8 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompat.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompat.java
@@ -18,8 +18,6 @@ package com.android.launcher3.compat;
 
 import android.content.Context;
 
-import com.android.launcher3.Utilities;
-
 import java.util.HashMap;
 
 public abstract class PackageInstallerCompat {
@@ -34,11 +32,7 @@ public abstract class PackageInstallerCompat {
     public static PackageInstallerCompat getInstance(Context context) {
         synchronized (sInstanceLock) {
             if (sInstance == null) {
-                if (Utilities.ATLEAST_LOLLIPOP) {
-                    sInstance = new PackageInstallerCompatVL(context);
-                } else {
-                    sInstance = new PackageInstallerCompatV16();
-                }
+                sInstance = new PackageInstallerCompatVL(context);
             }
             return sInstance;
         }
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatV16.java b/src/com/android/launcher3/compat/PackageInstallerCompatV16.java
deleted file mode 100644
index 654e34968..000000000
--- a/src/com/android/launcher3/compat/PackageInstallerCompatV16.java
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import java.util.HashMap;
-
-public class PackageInstallerCompatV16 extends PackageInstallerCompat {
-
-    PackageInstallerCompatV16() { }
-
-    @Override
-    public void onStop() { }
-
-    @Override
-    public HashMap<String, Integer> updateAndGetActiveSessionCache() {
-        return new HashMap<>();
-    }
-}
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
index 192cb0cf1..953d93df9 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
@@ -16,12 +16,10 @@
 
 package com.android.launcher3.compat;
 
-import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionCallback;
 import android.content.pm.PackageInstaller.SessionInfo;
-import android.os.Build;
 import android.os.Handler;
 import android.os.Process;
 import android.os.UserHandle;
@@ -34,7 +32,6 @@ import com.android.launcher3.util.Thunk;
 
 import java.util.HashMap;
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
 public class PackageInstallerCompatVL extends PackageInstallerCompat {
 
     @Thunk final SparseArray<String> mActiveSessions = new SparseArray<>();
diff --git a/src/com/android/launcher3/compat/UserManagerCompat.java b/src/com/android/launcher3/compat/UserManagerCompat.java
index 24c95b11e..25808d21c 100644
--- a/src/com/android/launcher3/compat/UserManagerCompat.java
+++ b/src/com/android/launcher3/compat/UserManagerCompat.java
@@ -39,12 +39,8 @@ public abstract class UserManagerCompat {
                     sInstance = new UserManagerCompatVN(context.getApplicationContext());
                 } else if (Utilities.ATLEAST_MARSHMALLOW) {
                     sInstance = new UserManagerCompatVM(context.getApplicationContext());
-                } else if (Utilities.ATLEAST_LOLLIPOP) {
-                    sInstance = new UserManagerCompatVL(context.getApplicationContext());
-                } else if (Utilities.ATLEAST_JB_MR1) {
-                    sInstance = new UserManagerCompatV17(context.getApplicationContext());
                 } else {
-                    sInstance = new UserManagerCompatV16();
+                    sInstance = new UserManagerCompatVL(context.getApplicationContext());
                 }
             }
             return sInstance;
diff --git a/src/com/android/launcher3/compat/UserManagerCompatV16.java b/src/com/android/launcher3/compat/UserManagerCompatV16.java
deleted file mode 100644
index 60374aa15..000000000
--- a/src/com/android/launcher3/compat/UserManagerCompatV16.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import android.os.Process;
-import android.os.UserHandle;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class UserManagerCompatV16 extends UserManagerCompat {
-
-    UserManagerCompatV16() {
-    }
-
-    public List<UserHandle> getUserProfiles() {
-        List<UserHandle> profiles = new ArrayList<UserHandle>(1);
-        profiles.add(Process.myUserHandle());
-        return profiles;
-    }
-
-    public UserHandle getUserForSerialNumber(long serialNumber) {
-        return Process.myUserHandle();
-    }
-
-    public long getSerialNumberForUser(UserHandle user) {
-        return 0;
-    }
-
-    public CharSequence getBadgedLabelForUser(CharSequence label, UserHandle user) {
-        return label;
-    }
-
-    @Override
-    public long getUserCreationTime(UserHandle user) {
-        return 0;
-    }
-
-    @Override
-    public void enableAndResetCache() {
-    }
-
-    @Override
-    public boolean isQuietModeEnabled(UserHandle user) {
-        return false;
-    }
-
-    @Override
-    public boolean isUserUnlocked(UserHandle user) {
-        return true;
-    }
-
-    @Override
-    public boolean isDemoUser() {
-        return false;
-    }
-}
diff --git a/src/com/android/launcher3/compat/UserManagerCompatV17.java b/src/com/android/launcher3/compat/UserManagerCompatV17.java
deleted file mode 100644
index 08e894750..000000000
--- a/src/com/android/launcher3/compat/UserManagerCompatV17.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * 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.launcher3.compat;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.os.Build;
-import android.os.Process;
-import android.os.UserHandle;
-import android.os.UserManager;
-
-import com.android.launcher3.util.LongArrayMap;
-
-import java.util.HashMap;
-
-@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-public class UserManagerCompatV17 extends UserManagerCompatV16 {
-
-    protected LongArrayMap<UserHandle> mUsers;
-    // Create a separate reverse map as LongArrayMap.indexOfValue checks if objects are same
-    // and not {@link Object#equals}
-    protected HashMap<UserHandle, Long> mUserToSerialMap;
-
-    protected UserManager mUserManager;
-
-    UserManagerCompatV17(Context context) {
-        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
-    }
-
-    public long getSerialNumberForUser(UserHandle user) {
-        synchronized (this) {
-            if (mUserToSerialMap != null) {
-                Long serial = mUserToSerialMap.get(user);
-                return serial == null ? 0 : serial;
-            }
-        }
-        return mUserManager.getSerialNumberForUser(user);
-    }
-
-    public UserHandle getUserForSerialNumber(long serialNumber) {
-        synchronized (this) {
-            if (mUsers != null) {
-                return mUsers.get(serialNumber);
-            }
-        }
-        return mUserManager.getUserForSerialNumber(serialNumber);
-    }
-
-    @Override
-    public void enableAndResetCache() {
-        synchronized (this) {
-            mUsers = new LongArrayMap<>();
-            mUserToSerialMap = new HashMap<>();
-            UserHandle myUser = Process.myUserHandle();
-            long serial = mUserManager.getSerialNumberForUser(myUser);
-            mUsers.put(serial, myUser);
-            mUserToSerialMap.put(myUser, serial);
-        }
-    }
-}
-
diff --git a/src/com/android/launcher3/compat/UserManagerCompatVL.java b/src/com/android/launcher3/compat/UserManagerCompatVL.java
index 277460281..45525f521 100644
--- a/src/com/android/launcher3/compat/UserManagerCompatVL.java
+++ b/src/com/android/launcher3/compat/UserManagerCompatVL.java
@@ -16,12 +16,11 @@
 
 package com.android.launcher3.compat;
 
-import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
-import android.os.Build;
 import android.os.UserHandle;
+import android.os.UserManager;
 
 import com.android.launcher3.Utilities;
 import com.android.launcher3.util.LongArrayMap;
@@ -31,20 +30,61 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
-public class UserManagerCompatVL extends UserManagerCompatV17 {
+public class UserManagerCompatVL extends UserManagerCompat {
     private static final String USER_CREATION_TIME_KEY = "user_creation_time_";
 
+    protected final UserManager mUserManager;
     private final PackageManager mPm;
     private final Context mContext;
 
+    protected LongArrayMap<UserHandle> mUsers;
+    // Create a separate reverse map as LongArrayMap.indexOfValue checks if objects are same
+    // and not {@link Object#equals}
+    protected HashMap<UserHandle, Long> mUserToSerialMap;
+
     UserManagerCompatVL(Context context) {
-        super(context);
+        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
         mPm = context.getPackageManager();
         mContext = context;
     }
 
     @Override
+    public long getSerialNumberForUser(UserHandle user) {
+        synchronized (this) {
+            if (mUserToSerialMap != null) {
+                Long serial = mUserToSerialMap.get(user);
+                return serial == null ? 0 : serial;
+            }
+        }
+        return mUserManager.getSerialNumberForUser(user);
+    }
+
+    @Override
+    public UserHandle getUserForSerialNumber(long serialNumber) {
+        synchronized (this) {
+            if (mUsers != null) {
+                return mUsers.get(serialNumber);
+            }
+        }
+        return mUserManager.getUserForSerialNumber(serialNumber);
+    }
+
+    @Override
+    public boolean isQuietModeEnabled(UserHandle user) {
+        return false;
+    }
+
+    @Override
+    public boolean isUserUnlocked(UserHandle user) {
+        return true;
+    }
+
+    @Override
+    public boolean isDemoUser() {
+        return false;
+    }
+
+    @Override
     public void enableAndResetCache() {
         synchronized (this) {
             mUsers = new LongArrayMap<>();