Add InstrumentFragment for non-PreferenceFragment types.

This allows app fragment use a less heavyweight fragment as super class
if they don't need PreferenceFragment. Using this class as base is
generally easier to set up robolectric tests too.

Bug: 33354536
Test: RunSettingsRoboTests
Change-Id: I91c4d242ea0333c76c8767c03c3f18dee6b6e104
diff --git a/src/com/android/settings/ChooseLockPassword.java b/src/com/android/settings/ChooseLockPassword.java
index 3c66b7e..351c2a2 100644
--- a/src/com/android/settings/ChooseLockPassword.java
+++ b/src/com/android/settings/ChooseLockPassword.java
@@ -51,7 +51,7 @@
 import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.LockPatternUtils.RequestThrottledException;
 import com.android.internal.widget.TextViewInputDisabler;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.notification.RedactionInterstitial;
 import com.android.settings.password.PasswordRequirementAdapter;
 import com.android.setupwizardlib.GlifLayout;
@@ -157,7 +157,7 @@
         layout.setFitsSystemWindows(false);
     }
 
-    public static class ChooseLockPasswordFragment extends InstrumentedFragment
+    public static class ChooseLockPasswordFragment extends InstrumentedPreferenceFragment
             implements OnClickListener, OnEditorActionListener, TextWatcher,
             SaveAndFinishWorker.Listener {
         private static final String KEY_FIRST_PIN = "first_pin";
diff --git a/src/com/android/settings/ChooseLockPattern.java b/src/com/android/settings/ChooseLockPattern.java
index d92e6aa..4afeae0 100644
--- a/src/com/android/settings/ChooseLockPattern.java
+++ b/src/com/android/settings/ChooseLockPattern.java
@@ -37,7 +37,7 @@
 import com.android.internal.widget.LockPatternView;
 import com.android.internal.widget.LockPatternView.Cell;
 import com.android.internal.widget.LockPatternView.DisplayMode;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.notification.RedactionInterstitial;
 import com.android.setupwizardlib.GlifLayout;
 import com.google.android.collect.Lists;
@@ -127,7 +127,7 @@
         return super.onKeyDown(keyCode, event);
     }
 
-    public static class ChooseLockPatternFragment extends InstrumentedFragment
+    public static class ChooseLockPatternFragment extends InstrumentedPreferenceFragment
             implements View.OnClickListener, SaveAndFinishWorker.Listener {
 
         public static final int CONFIRM_EXISTING_REQUEST = 55;
diff --git a/src/com/android/settings/CryptKeeperConfirm.java b/src/com/android/settings/CryptKeeperConfirm.java
index e12ebe0..d61fd98 100644
--- a/src/com/android/settings/CryptKeeperConfirm.java
+++ b/src/com/android/settings/CryptKeeperConfirm.java
@@ -35,11 +35,11 @@
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.widget.LockPatternUtils;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 
 import java.util.Locale;
 
-public class CryptKeeperConfirm extends InstrumentedFragment {
+public class CryptKeeperConfirm extends InstrumentedPreferenceFragment {
 
     private static final String TAG = "CryptKeeperConfirm";
 
diff --git a/src/com/android/settings/CryptKeeperSettings.java b/src/com/android/settings/CryptKeeperSettings.java
index cdeb55f..d9b98f0 100644
--- a/src/com/android/settings/CryptKeeperSettings.java
+++ b/src/com/android/settings/CryptKeeperSettings.java
@@ -36,9 +36,9 @@
 import android.widget.Button;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 
-public class CryptKeeperSettings extends InstrumentedFragment {
+public class CryptKeeperSettings extends InstrumentedPreferenceFragment {
     private static final String TAG = "CryptKeeper";
     private static final String TYPE = "type";
     private static final String PASSWORD = "password";
diff --git a/src/com/android/settings/OptionsMenuFragment.java b/src/com/android/settings/OptionsMenuFragment.java
index d1e3db2..c8dcc8e 100644
--- a/src/com/android/settings/OptionsMenuFragment.java
+++ b/src/com/android/settings/OptionsMenuFragment.java
@@ -17,7 +17,7 @@
 
 import android.os.Bundle;
 
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 
 /**
  * Base class for a fragment that has the options menu.
@@ -25,7 +25,7 @@
  * preferences, and we need to call setHasOptionsMenu(true) for the back button on action bar.
  * For preference fragments, use SettingsPreferenceFragment.
  */
-public abstract class OptionsMenuFragment extends InstrumentedFragment {
+public abstract class OptionsMenuFragment extends InstrumentedPreferenceFragment {
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
diff --git a/src/com/android/settings/ProxySelector.java b/src/com/android/settings/ProxySelector.java
index b272637..a72525c 100644
--- a/src/com/android/settings/ProxySelector.java
+++ b/src/com/android/settings/ProxySelector.java
@@ -41,9 +41,9 @@
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.SettingsPreferenceFragment.SettingsDialogFragment;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 
-public class ProxySelector extends InstrumentedFragment implements DialogCreatable {
+public class ProxySelector extends InstrumentedPreferenceFragment implements DialogCreatable {
     private static final String TAG = "ProxySelector";
 
     EditText    mHostnameField;
diff --git a/src/com/android/settings/SettingsPreferenceFragment.java b/src/com/android/settings/SettingsPreferenceFragment.java
index 8118dab..5f42579 100644
--- a/src/com/android/settings/SettingsPreferenceFragment.java
+++ b/src/com/android/settings/SettingsPreferenceFragment.java
@@ -45,7 +45,7 @@
 import android.widget.Button;
 
 import com.android.settings.applications.LayoutPreference;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.core.instrumentation.Instrumentable;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settingslib.HelpUtils;
@@ -55,7 +55,7 @@
 /**
  * Base class for Settings fragments, with some helper functions and dialog management.
  */
-public abstract class SettingsPreferenceFragment extends InstrumentedFragment
+public abstract class SettingsPreferenceFragment extends InstrumentedPreferenceFragment
         implements DialogCreatable {
 
     /**
diff --git a/src/com/android/settings/applications/AppOpsDetails.java b/src/com/android/settings/applications/AppOpsDetails.java
index ba60302..e6c040b 100644
--- a/src/com/android/settings/applications/AppOpsDetails.java
+++ b/src/com/android/settings/applications/AppOpsDetails.java
@@ -39,14 +39,14 @@
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.Utils;
 
 import java.util.List;
 
-public class AppOpsDetails extends InstrumentedFragment {
+public class AppOpsDetails extends InstrumentedPreferenceFragment {
     static final String TAG = "AppOpsDetails";
 
     public static final String ARG_PACKAGE_NAME = "package";
diff --git a/src/com/android/settings/applications/AppOpsSummary.java b/src/com/android/settings/applications/AppOpsSummary.java
index ac0a856..ba2a3c9 100644
--- a/src/com/android/settings/applications/AppOpsSummary.java
+++ b/src/com/android/settings/applications/AppOpsSummary.java
@@ -29,10 +29,10 @@
 import android.view.ViewGroup;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 
-public class AppOpsSummary extends InstrumentedFragment {
+public class AppOpsSummary extends InstrumentedPreferenceFragment {
     // layout inflater object used to inflate views
     private LayoutInflater mInflater;
     
diff --git a/src/com/android/settings/applications/BackgroundCheckSummary.java b/src/com/android/settings/applications/BackgroundCheckSummary.java
index 1ff43c8..dd5c89c 100644
--- a/src/com/android/settings/applications/BackgroundCheckSummary.java
+++ b/src/com/android/settings/applications/BackgroundCheckSummary.java
@@ -24,10 +24,10 @@
 import android.view.ViewGroup;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 
-public class BackgroundCheckSummary extends InstrumentedFragment {
+public class BackgroundCheckSummary extends InstrumentedPreferenceFragment {
     // layout inflater object used to inflate views
     private LayoutInflater mInflater;
 
diff --git a/src/com/android/settings/applications/ManageApplications.java b/src/com/android/settings/applications/ManageApplications.java
index 0ec9f1b..37b4b96 100644
--- a/src/com/android/settings/applications/ManageApplications.java
+++ b/src/com/android/settings/applications/ManageApplications.java
@@ -67,7 +67,7 @@
 import com.android.settings.Utils;
 import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
 import com.android.settings.applications.AppStateUsageBridge.UsageState;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.dashboard.SummaryLoader;
 import com.android.settings.fuelgauge.HighPowerDetail;
 import com.android.settings.fuelgauge.PowerWhitelistBackend;
@@ -95,7 +95,7 @@
  * can be launched through Settings or via the ACTION_MANAGE_PACKAGE_STORAGE
  * intent.
  */
-public class ManageApplications extends InstrumentedFragment
+public class ManageApplications extends InstrumentedPreferenceFragment
         implements OnItemClickListener, OnItemSelectedListener {
 
     static final String TAG = "ManageApplications";
diff --git a/src/com/android/settings/applications/ProcessStatsMemDetail.java b/src/com/android/settings/applications/ProcessStatsMemDetail.java
index 46a707b..b38aaf6 100644
--- a/src/com/android/settings/applications/ProcessStatsMemDetail.java
+++ b/src/com/android/settings/applications/ProcessStatsMemDetail.java
@@ -26,12 +26,12 @@
 
 import com.android.internal.app.procstats.ProcessStats;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 
 import static com.android.settings.Utils.prepareCustomPreferencesList;
 
-public class ProcessStatsMemDetail extends InstrumentedFragment {
+public class ProcessStatsMemDetail extends InstrumentedPreferenceFragment {
     public static final String EXTRA_MEM_TIMES = "mem_times";
     public static final String EXTRA_MEM_STATE_WEIGHTS = "mem_state_weights";
     public static final String EXTRA_MEM_CACHED_WEIGHT = "mem_cached_weight";
diff --git a/src/com/android/settings/applications/RunningServiceDetails.java b/src/com/android/settings/applications/RunningServiceDetails.java
index 28a8029..9a173bc 100644
--- a/src/com/android/settings/applications/RunningServiceDetails.java
+++ b/src/com/android/settings/applications/RunningServiceDetails.java
@@ -33,7 +33,7 @@
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 import com.android.settings.Utils;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
@@ -45,7 +45,7 @@
 import java.util.ArrayList;
 import java.util.Collections;
 
-public class RunningServiceDetails extends InstrumentedFragment
+public class RunningServiceDetails extends InstrumentedPreferenceFragment
         implements RunningState.OnRefreshUiListener {
     static final String TAG = "RunningServicesDetails";
 
diff --git a/src/com/android/settings/core/InstrumentedFragment.java b/src/com/android/settings/core/InstrumentedFragment.java
index 45e855e..e55cc27 100644
--- a/src/com/android/settings/core/InstrumentedFragment.java
+++ b/src/com/android/settings/core/InstrumentedFragment.java
@@ -17,37 +17,17 @@
 package com.android.settings.core;
 
 import android.content.Context;
-import android.os.Bundle;
 
 import com.android.settings.core.instrumentation.Instrumentable;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.core.instrumentation.VisibilityLoggerMixin;
-import com.android.settings.core.lifecycle.ObservablePreferenceFragment;
+import com.android.settings.core.lifecycle.ObservableFragment;
 import com.android.settings.overlay.FeatureFactory;
 
-/**
- * Instrumented fragment that logs visibility state.
- */
-public abstract class InstrumentedFragment extends ObservablePreferenceFragment
-        implements Instrumentable {
+public abstract class InstrumentedFragment extends ObservableFragment implements Instrumentable {
 
     protected MetricsFeatureProvider mMetricsFeatureProvider;
 
-    // metrics placeholder value. Only use this for development.
-    protected final int PLACEHOLDER_METRIC = 10000;
-    protected final int SYSTEM_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 1;
-    protected final int STORAGE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 2;
-    protected final int NETWORK_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 3;
-    protected final int CONNECTED_DEVICE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 4;
-    protected final int APP_AND_NOTIFICATION_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 5;
-    protected final int INPUT_AND_GESTURE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 6;
-    protected final int LANGUAGE_AND_REGION_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 7;
-    protected final int GESTURE_SWIPE_TO_NOTIFICATION = PLACEHOLDER_METRIC + 8;
-    protected final int GESTURE_DOUBLE_TAP_POWER = PLACEHOLDER_METRIC + 9;
-    protected final int GESTURE_PICKUP = PLACEHOLDER_METRIC + 10;
-    protected final int GESTURE_DOUBLE_TAP_SCREEN = PLACEHOLDER_METRIC + 11;
-    protected final int GESTURE_DOUBLE_TWIST = PLACEHOLDER_METRIC + 12;
-
     public InstrumentedFragment() {
         // Mixin that logs visibility change for activity.
         getLifecycle().addObserver(new VisibilityLoggerMixin(getMetricsCategory()));
@@ -58,8 +38,4 @@
         super.onAttach(context);
         mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
     }
-
-    @Override
-    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
-    }
-}
+}
\ No newline at end of file
diff --git a/src/com/android/settings/core/InstrumentedPreferenceFragment.java b/src/com/android/settings/core/InstrumentedPreferenceFragment.java
new file mode 100644
index 0000000..1724d0c
--- /dev/null
+++ b/src/com/android/settings/core/InstrumentedPreferenceFragment.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 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.settings.core;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import com.android.settings.core.instrumentation.Instrumentable;
+import com.android.settings.core.instrumentation.MetricsFeatureProvider;
+import com.android.settings.core.instrumentation.VisibilityLoggerMixin;
+import com.android.settings.core.lifecycle.ObservablePreferenceFragment;
+import com.android.settings.overlay.FeatureFactory;
+
+/**
+ * Instrumented fragment that logs visibility state.
+ */
+public abstract class InstrumentedPreferenceFragment extends ObservablePreferenceFragment
+        implements Instrumentable {
+
+    protected MetricsFeatureProvider mMetricsFeatureProvider;
+
+    // metrics placeholder value. Only use this for development.
+    protected final int PLACEHOLDER_METRIC = 10000;
+    protected final int SYSTEM_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 1;
+    protected final int STORAGE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 2;
+    protected final int NETWORK_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 3;
+    protected final int CONNECTED_DEVICE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 4;
+    protected final int APP_AND_NOTIFICATION_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 5;
+    protected final int INPUT_AND_GESTURE_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 6;
+    protected final int LANGUAGE_AND_REGION_CATEGORY_FRAGMENT = PLACEHOLDER_METRIC + 7;
+    protected final int GESTURE_SWIPE_TO_NOTIFICATION = PLACEHOLDER_METRIC + 8;
+    protected final int GESTURE_DOUBLE_TAP_POWER = PLACEHOLDER_METRIC + 9;
+    protected final int GESTURE_PICKUP = PLACEHOLDER_METRIC + 10;
+    protected final int GESTURE_DOUBLE_TAP_SCREEN = PLACEHOLDER_METRIC + 11;
+    protected final int GESTURE_DOUBLE_TWIST = PLACEHOLDER_METRIC + 12;
+
+    public InstrumentedPreferenceFragment() {
+        // Mixin that logs visibility change for activity.
+        getLifecycle().addObserver(new VisibilityLoggerMixin(getMetricsCategory()));
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+    }
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+    }
+}
diff --git a/src/com/android/settings/core/lifecycle/ObservableFragment.java b/src/com/android/settings/core/lifecycle/ObservableFragment.java
new file mode 100644
index 0000000..b146325
--- /dev/null
+++ b/src/com/android/settings/core/lifecycle/ObservableFragment.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2016 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.settings.core.lifecycle;
+
+import android.annotation.CallSuper;
+import android.app.Fragment;
+import android.content.Context;
+import android.os.Bundle;
+
+public class ObservableFragment extends Fragment {
+
+    private final Lifecycle mLifecycle = new Lifecycle();
+
+    protected Lifecycle getLifecycle() {
+        return mLifecycle;
+    }
+
+    @CallSuper
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mLifecycle.onAttach(context);
+    }
+
+    @CallSuper
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        mLifecycle.onCreate(savedInstanceState);
+        super.onCreate(savedInstanceState);
+    }
+
+    @CallSuper
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        mLifecycle.onSaveInstanceState(outState);
+    }
+
+    @CallSuper
+    @Override
+    public void onStart() {
+        mLifecycle.onStart();
+        super.onStart();
+    }
+
+    @CallSuper
+    @Override
+    public void onStop() {
+        mLifecycle.onStop();
+        super.onStop();
+    }
+
+    @CallSuper
+    @Override
+    public void onResume() {
+        mLifecycle.onResume();
+        super.onResume();
+    }
+
+    @CallSuper
+    @Override
+    public void onPause() {
+        mLifecycle.onPause();
+        super.onPause();
+    }
+
+    @CallSuper
+    @Override
+    public void onDestroy() {
+        mLifecycle.onDestroy();
+        super.onDestroy();
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/settings/dashboard/DashboardSummary.java b/src/com/android/settings/dashboard/DashboardSummary.java
index 0b3cc32..de32b30 100644
--- a/src/com/android/settings/dashboard/DashboardSummary.java
+++ b/src/com/android/settings/dashboard/DashboardSummary.java
@@ -32,7 +32,7 @@
 import com.android.settings.R;
 import com.android.settings.Settings;
 import com.android.settings.SettingsActivity;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.dashboard.conditional.Condition;
 import com.android.settings.dashboard.conditional.ConditionAdapterUtils;
 import com.android.settings.dashboard.conditional.ConditionManager;
@@ -47,7 +47,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-public class DashboardSummary extends InstrumentedFragment
+public class DashboardSummary extends InstrumentedPreferenceFragment
         implements SettingsDrawerActivity.CategoryListener, ConditionManager.ConditionListener,
         FocusRecyclerView.FocusListener {
     public static final boolean DEBUG = false;
diff --git a/src/com/android/settings/dashboard/SearchResultsSummary.java b/src/com/android/settings/dashboard/SearchResultsSummary.java
index 7097485..ef84f8b 100644
--- a/src/com/android/settings/dashboard/SearchResultsSummary.java
+++ b/src/com/android/settings/dashboard/SearchResultsSummary.java
@@ -41,12 +41,12 @@
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.Utils;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.search.Index;
 
 import java.util.HashMap;
 
-public class SearchResultsSummary extends InstrumentedFragment {
+public class SearchResultsSummary extends InstrumentedPreferenceFragment {
 
     private static final String LOG_TAG = "SearchResultsSummary";
 
diff --git a/src/com/android/settings/deviceinfo/PrivateVolumeFormat.java b/src/com/android/settings/deviceinfo/PrivateVolumeFormat.java
index c4ca880..319a09c 100644
--- a/src/com/android/settings/deviceinfo/PrivateVolumeFormat.java
+++ b/src/com/android/settings/deviceinfo/PrivateVolumeFormat.java
@@ -30,10 +30,10 @@
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 
-public class PrivateVolumeFormat extends InstrumentedFragment {
+public class PrivateVolumeFormat extends InstrumentedPreferenceFragment {
     private VolumeInfo mVolume;
     private DiskInfo mDisk;
 
diff --git a/src/com/android/settings/fingerprint/FingerprintEnrollSidecar.java b/src/com/android/settings/fingerprint/FingerprintEnrollSidecar.java
index c0c0d33..e0c5d65 100644
--- a/src/com/android/settings/fingerprint/FingerprintEnrollSidecar.java
+++ b/src/com/android/settings/fingerprint/FingerprintEnrollSidecar.java
@@ -28,12 +28,12 @@
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.ChooseLockSettingsHelper;
 import com.android.settings.Utils;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 
 /**
  * Sidecar fragment to handle the state around fingerprint enrollment.
  */
-public class FingerprintEnrollSidecar extends InstrumentedFragment {
+public class FingerprintEnrollSidecar extends InstrumentedPreferenceFragment {
 
     private int mEnrollmentSteps = -1;
     private int mEnrollmentRemaining = 0;
diff --git a/src/com/android/settings/inputmethod/UserDictionaryAddWordFragment.java b/src/com/android/settings/inputmethod/UserDictionaryAddWordFragment.java
index 65b40a3..0d30bcc 100644
--- a/src/com/android/settings/inputmethod/UserDictionaryAddWordFragment.java
+++ b/src/com/android/settings/inputmethod/UserDictionaryAddWordFragment.java
@@ -27,7 +27,7 @@
 import android.widget.ArrayAdapter;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.inputmethod.UserDictionaryAddWordContents.LocaleRenderer;
@@ -41,7 +41,7 @@
  * As opposed to the UserDictionaryActivity, this is only invoked within Settings
  * from the UserDictionarySettings.
  */
-public class UserDictionaryAddWordFragment extends InstrumentedFragment
+public class UserDictionaryAddWordFragment extends InstrumentedPreferenceFragment
         implements AdapterView.OnItemSelectedListener,
         com.android.internal.app.LocalePicker.LocaleSelectionListener {
 
diff --git a/src/com/android/settings/nfc/AndroidBeam.java b/src/com/android/settings/nfc/AndroidBeam.java
index 76b67e8..fe264f3 100644
--- a/src/com/android/settings/nfc/AndroidBeam.java
+++ b/src/com/android/settings/nfc/AndroidBeam.java
@@ -29,7 +29,7 @@
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settingslib.HelpUtils;
-import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.ShowAdminSupportDetailsDialog;
@@ -38,7 +38,7 @@
 
 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
 
-public class AndroidBeam extends InstrumentedFragment
+public class AndroidBeam extends InstrumentedPreferenceFragment
         implements SwitchBar.OnSwitchChangeListener {
     private View mView;
     private NfcAdapter mNfcAdapter;
diff --git a/tests/robotests/assets/grandfather_not_implementing_instrumentable b/tests/robotests/assets/grandfather_not_implementing_instrumentable
index 5bd96af..c1f0d60 100644
--- a/tests/robotests/assets/grandfather_not_implementing_instrumentable
+++ b/tests/robotests/assets/grandfather_not_implementing_instrumentable
@@ -1,4 +1,5 @@
 com.android.settings.deletionhelper.ActivationWarningFragment
 com.android.settings.core.lifecycle.ObservableDialogFragment
+com.android.settings.core.lifecycle.ObservableFragment
 com.android.settings.applications.AppOpsCategory
 com.android.settings.inputmethod.UserDictionaryLocalePicker
diff --git a/tests/robotests/src/com/android/settings/core/lifecycle/LifecycleTest.java b/tests/robotests/src/com/android/settings/core/lifecycle/LifecycleTest.java
index 6aae543..db83bbb 100644
--- a/tests/robotests/src/com/android/settings/core/lifecycle/LifecycleTest.java
+++ b/tests/robotests/src/com/android/settings/core/lifecycle/LifecycleTest.java
@@ -16,6 +16,7 @@
 package com.android.settings.core.lifecycle;
 
 import android.content.Context;
+
 import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.core.lifecycle.events.OnAttach;
@@ -24,6 +25,7 @@
 import com.android.settings.core.lifecycle.events.OnResume;
 import com.android.settings.core.lifecycle.events.OnStart;
 import com.android.settings.core.lifecycle.events.OnStop;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.Robolectric;
@@ -47,6 +49,16 @@
         }
     }
 
+    public static class TestFragment extends ObservableFragment {
+
+        final TestObserver mFragObserver;
+
+        public TestFragment() {
+            mFragObserver = new TestObserver();
+            getLifecycle().addObserver(mFragObserver);
+        }
+    }
+
     public static class TestActivity extends ObservableActivity {
 
         final TestObserver mActObserver;
@@ -119,7 +131,7 @@
     }
 
     @Test
-    public void runThroughFragmentLifecycles_shouldObserveEverything() {
+    public void runThroughDialogFragmentLifecycles_shouldObserveEverything() {
         FragmentController<TestDialogFragment> fragmentController =
                 Robolectric.buildFragment(TestDialogFragment.class);
         TestDialogFragment fragment = fragmentController.get();
@@ -134,4 +146,21 @@
         assertThat(fragment.mFragObserver.mOnStopObserved).isTrue();
         assertThat(fragment.mFragObserver.mOnDestroyObserved).isTrue();
     }
+
+    @Test
+    public void runThroughFragmentLifecycles_shouldObserveEverything() {
+        FragmentController<TestFragment> fragmentController =
+                Robolectric.buildFragment(TestFragment.class);
+        TestFragment fragment = fragmentController.get();
+
+        fragmentController.attach().create().start().resume().pause().stop().destroy();
+
+        assertThat(fragment.mFragObserver.mOnAttachObserved).isTrue();
+        assertThat(fragment.mFragObserver.mOnAttachHasContext).isTrue();
+        assertThat(fragment.mFragObserver.mOnStartObserved).isTrue();
+        assertThat(fragment.mFragObserver.mOnResumeObserved).isTrue();
+        assertThat(fragment.mFragObserver.mOnPauseObserved).isTrue();
+        assertThat(fragment.mFragObserver.mOnStopObserved).isTrue();
+        assertThat(fragment.mFragObserver.mOnDestroyObserved).isTrue();
+    }
 }