Merge "Fix a monkey crash in Developer settings." into oc-mr1-dev

src/com/android/settings/development/DevelopmentSettings.java

@@ -354,6 +354,7 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
     private Dialog mLogpersistClearDialog;
     private DashboardFeatureProvider mDashboardFeatureProvider;
     private DevelopmentSettingsEnabler mSettingsEnabler;
+    private DevelopmentSwitchBarController mSwitchBarController;
     private BugReportPreferenceController mBugReportController;
     private BugReportInPowerPreferenceController mBugReportInPowerController;
     private TelephonyMonitorPreferenceController mTelephonyMonitorController;
@@ -622,18 +623,9 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        final SettingsActivity activity = (SettingsActivity) getActivity();
-
-        mSwitchBar = activity.getSwitchBar();
-        if (mUnavailable) {
-            mSwitchBar.setEnabled(false);
-            return;
-        }
-
-        if (Utils.isMonkeyRunning()) {
-            return;
-        }
-        mSwitchBar.addOnSwitchChangeListener(this);
+        mSwitchBar = ((SettingsActivity) getActivity()).getSwitchBar();
+        mSwitchBarController = new DevelopmentSwitchBarController(
+                this /* DevelopmentSettings */, mSwitchBar, !mUnavailable,  getLifecycle());
     }
 
     private boolean removePreferenceForProduction(Preference preference) {
@@ -760,8 +752,6 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
         if (mUnavailable) {
             return;
         }
-        mSwitchBar.removeOnSwitchChangeListener(this);
-        mSwitchBar.hide();
         getActivity().unregisterReceiver(mUsbReceiver);
         getActivity().unregisterReceiver(mBluetoothA2dpReceiver);
         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();

src/com/android/settings/development/DevelopmentSwitchBarController.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2017 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.development;
+
+import com.android.settings.Utils;
+import com.android.settings.widget.SwitchBar;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+public class DevelopmentSwitchBarController implements LifecycleObserver, OnStart, OnStop {
+
+    private final SwitchBar mSwitchBar;
+    private final boolean mIsAvailable;
+    private final DevelopmentSettings mSettings;
+
+    public DevelopmentSwitchBarController(DevelopmentSettings settings, SwitchBar switchBar,
+            boolean isAvailable, Lifecycle lifecycle) {
+        mSwitchBar = switchBar;
+        mIsAvailable = isAvailable && !Utils.isMonkeyRunning();
+        mSettings = settings;
+
+        if (mIsAvailable) {
+            lifecycle.addObserver(this);
+        } else {
+            mSwitchBar.setEnabled(false);
+        }
+    }
+
+    @Override
+    public void onStart() {
+        mSwitchBar.addOnSwitchChangeListener(mSettings);
+    }
+
+    @Override
+    public void onStop() {
+        mSwitchBar.removeOnSwitchChangeListener(mSettings);
+    }
+}

src/com/android/settings/widget/SwitchBar.java

@@ -16,6 +16,8 @@
 
 package com.android.settings.widget;
 
+import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.os.Parcel;
@@ -41,8 +43,6 @@ import com.android.settingslib.RestrictedLockUtils;
 
 import java.util.ArrayList;
 
-import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
-
 public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedChangeListener,
         View.OnClickListener {
 
@@ -71,8 +71,7 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
 
     private String mMetricsTag;
 
-    private ArrayList<OnSwitchChangeListener> mSwitchChangeListeners =
-            new ArrayList<OnSwitchChangeListener>();
+    private final ArrayList<OnSwitchChangeListener> mSwitchChangeListeners = new ArrayList<>();
 
     private static int[] XML_ATTRIBUTES = {
             R.attr.switchBarMarginStart, R.attr.switchBarMarginEnd,

tests/robotests/src/com/android/settings/development/DevelopmentSwitchBarControllerTest.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2017 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.development;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowUtils;
+import com.android.settings.widget.SwitchBar;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
+
+import java.util.ArrayList;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION,
+        shadows = {
+                ShadowUtils.class
+        })
+public class DevelopmentSwitchBarControllerTest {
+
+    @Mock
+    private DevelopmentSettings mSettings;
+    private Lifecycle mLifecycle;
+    private SwitchBar mSwitchBar;
+    private DevelopmentSwitchBarController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mLifecycle = new Lifecycle();
+        mSwitchBar = new SwitchBar(RuntimeEnvironment.application);
+    }
+
+    @After
+    public void tearDown() {
+        ShadowUtils.reset();
+    }
+
+    @Test
+    public void runThroughLifecycle_isMonkeyRun_shouldNotRegisterListener() {
+        ShadowUtils.setIsUserAMonkey(true);
+        mController = new DevelopmentSwitchBarController(mSettings, mSwitchBar,
+                true /* isAvailable */, mLifecycle);
+        final ArrayList<SwitchBar.OnSwitchChangeListener> listeners =
+                ReflectionHelpers.getField(mSwitchBar, "mSwitchChangeListeners");
+
+        mLifecycle.onStart();
+        assertThat(listeners).doesNotContain(mSettings);
+
+        mLifecycle.onStop();
+        assertThat(listeners).doesNotContain(mSettings);
+    }
+
+    @Test
+    public void runThroughLifecycle_isNotMonkeyRun_shouldRegisterAndRemoveListener() {
+        ShadowUtils.setIsUserAMonkey(false);
+        mController = new DevelopmentSwitchBarController(mSettings, mSwitchBar,
+                true /* isAvailable */, mLifecycle);
+        final ArrayList<SwitchBar.OnSwitchChangeListener> listeners =
+                ReflectionHelpers.getField(mSwitchBar, "mSwitchChangeListeners");
+
+        mLifecycle.onStart();
+        assertThat(listeners).contains(mSettings);
+
+        mLifecycle.onStop();
+        assertThat(listeners).doesNotContain(mSettings);
+    }
+
+    @Test
+    public void buildController_unavailable_shouldDisableSwitchBar() {
+        ShadowUtils.setIsUserAMonkey(false);
+        mController = new DevelopmentSwitchBarController(mSettings, mSwitchBar,
+                false /* isAvailable */, mLifecycle);
+
+        assertThat(mSwitchBar.isEnabled()).isFalse();
+    }
+}