Expand channel settings if coming from app

Test: manual inspection
Change-Id: I2ed7f5cc2355f27e0edf36a0d8ee23e418eafd99
Fixes: 77648459

src/com/android/settings/notification/AppNotificationSettings.java

@@ -125,7 +125,7 @@ public class AppNotificationSettings extends NotificationSettingsBase {
         mControllers.add(new VibrationPreferenceController(context, mBackend));
         mControllers.add(new VisibilityPreferenceController(context, new LockPatternUtils(context),
                 mBackend));
-        mControllers.add(new DndPreferenceController(context, getLifecycle(), mBackend));
+        mControllers.add(new DndPreferenceController(context, mBackend));
         mControllers.add(new AppLinkPreferenceController(context));
         mControllers.add(new DescriptionPreferenceController(context));
         mControllers.add(new NotificationsOffPreferenceController(context));

src/com/android/settings/notification/ChannelNotificationSettings.java

@@ -18,13 +18,16 @@ package com.android.settings.notification;
 
 import android.content.Context;
 import android.content.Intent;
+import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v7.preference.PreferenceScreen;
 import android.text.TextUtils;
 import android.util.Log;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
+import com.android.settings.applications.AppInfoBase;
 import com.android.settingslib.core.AbstractPreferenceController;
 
 import java.util.ArrayList;
@@ -38,6 +41,19 @@ public class ChannelNotificationSettings extends NotificationSettingsBase {
         return MetricsEvent.NOTIFICATION_TOPIC_NOTIFICATION;
     }
 
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final PreferenceScreen screen = getPreferenceScreen();
+        Bundle args = getArguments();
+        // If linking to this screen from an external app, expand settings
+        if (screen != null && args != null) {
+            if (!args.getBoolean(ARG_FROM_SETTINGS, false)) {
+                screen.setInitialExpandedChildrenCount(Integer.MAX_VALUE);
+            }
+        }
+    }
+
     @Override
     public void onResume() {
         super.onResume();
@@ -92,7 +108,7 @@ public class ChannelNotificationSettings extends NotificationSettingsBase {
                 mBackend));
         mControllers.add(new LightsPreferenceController(context, mBackend));
         mControllers.add(new BadgePreferenceController(context, mBackend));
-        mControllers.add(new DndPreferenceController(context, getLifecycle(), mBackend));
+        mControllers.add(new DndPreferenceController(context, mBackend));
         mControllers.add(new NotificationsOffPreferenceController(context));
         return new ArrayList<>(mControllers);
     }

src/com/android/settings/notification/DndPreferenceController.java

@@ -28,17 +28,12 @@ import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnResume;
 
 public class DndPreferenceController extends NotificationPreferenceController
-        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
-        LifecycleObserver {
+        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
 
     private static final String KEY_BYPASS_DND = "bypass_dnd";
 
-    public DndPreferenceController(Context context, Lifecycle lifecycle,
-            NotificationBackend backend) {
+    public DndPreferenceController(Context context, NotificationBackend backend) {
         super(context, backend);
-        if (lifecycle != null) {
-            lifecycle.addObserver(this);
-        }
     }
 
     @Override

src/com/android/settings/notification/NotificationSettingsBase.java

@@ -58,6 +58,7 @@ import java.util.List;
 abstract public class NotificationSettingsBase extends DashboardFragment {
     private static final String TAG = "NotifiSettingsBase";
     private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
+    protected static final String ARG_FROM_SETTINGS = "fromSettings";
 
     protected PackageManager mPm;
     protected NotificationBackend mBackend = new NotificationBackend();
@@ -249,6 +250,7 @@ abstract public class NotificationSettingsBase extends DashboardFragment {
         channelArgs.putInt(AppInfoBase.ARG_PACKAGE_UID, mUid);
         channelArgs.putString(AppInfoBase.ARG_PACKAGE_NAME, mPkg);
         channelArgs.putString(Settings.EXTRA_CHANNEL_ID, channel.getId());
+        channelArgs.putBoolean(ARG_FROM_SETTINGS, true);
         channelPref.setIntent(new SubSettingLauncher(getActivity())
                 .setDestination(ChannelNotificationSettings.class.getName())
                 .setArguments(channelArgs)

tests/robotests/src/com/android/settings/notification/DndPreferenceControllerTest.java

@@ -64,8 +64,6 @@ public class DndPreferenceControllerTest {
     private UserManager mUm;
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private PreferenceScreen mScreen;
-    @Mock
-    private Lifecycle mLifecycle;
 
     private DndPreferenceController mController;
 
@@ -76,7 +74,7 @@ public class DndPreferenceControllerTest {
         shadowApplication.setSystemService(Context.NOTIFICATION_SERVICE, mNm);
         shadowApplication.setSystemService(Context.USER_SERVICE, mUm);
         mContext = RuntimeEnvironment.application;
-        mController = spy(new DndPreferenceController(mContext, mLifecycle, mBackend));
+        mController = spy(new DndPreferenceController(mContext, mBackend));
     }
 
     @Test