Fix ManagedServiceSettings to work with Preferencev14

Bug: 25007000
Change-Id: I5e3a59b77001ce0e2928b35fa1b87878e22d4fbd

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

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2015 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.notification;
+
+import android.annotation.Nullable;
+import android.os.Bundle;
+import android.util.TypedValue;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewGroup.LayoutParams;
+import android.widget.TextView;
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+public abstract class EmptyTextSettings extends SettingsPreferenceFragment {
+
+    private TextView mEmpty;
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        mEmpty = new TextView(getContext());
+        mEmpty.setGravity(Gravity.CENTER);
+        TypedValue value = new TypedValue();
+        getContext().getTheme().resolveAttribute(android.R.attr.textAppearanceMedium, value, true);
+        mEmpty.setTextAppearance(value.resourceId);
+        ((ViewGroup) view.findViewById(R.id.list_container)).addView(mEmpty,
+                new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
+        setEmptyView(mEmpty);
+    }
+
+    protected void setEmptyText(int text) {
+        mEmpty.setText(text);
+    }
+}

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

@@ -16,6 +16,7 @@
 
 package com.android.settings.notification;
 
+import android.annotation.Nullable;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.DialogFragment;
@@ -30,19 +31,14 @@ import android.support.v14.preference.SwitchPreference;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.Preference.OnPreferenceChangeListener;
 import android.support.v7.preference.PreferenceScreen;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ListView;
 import android.widget.TextView;
-
 import com.android.settings.R;
-import com.android.settings.SettingsPreferenceFragment;
 
 import java.util.Collections;
 import java.util.List;
 
-public abstract class ManagedServiceSettings extends SettingsPreferenceFragment {
+public abstract class ManagedServiceSettings extends EmptyTextSettings {
     private final Config mConfig;
 
     private Context mContext;
@@ -73,13 +69,9 @@ public abstract class ManagedServiceSettings extends SettingsPreferenceFragment
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-            Bundle savedInstanceState) {
-        final View v =  inflater.inflate(R.layout.managed_service_settings, container, false);
-        mEmpty = (TextView) v.findViewById(android.R.id.empty);
-        mEmpty.setText(mConfig.emptyText);
-        ((ListView) v.findViewById(android.R.id.list)).setEmptyView(mEmpty);
-        return v;
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        setEmptyText(mConfig.emptyText);
     }
 
     @Override

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

@@ -16,6 +16,7 @@
 
 package com.android.settings.notification;
 
+import android.annotation.Nullable;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.DialogFragment;
@@ -38,27 +39,21 @@ import android.support.v7.preference.Preference.OnPreferenceChangeListener;
 import android.support.v7.preference.PreferenceScreen;
 import android.text.TextUtils;
 import android.util.ArraySet;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
 import com.android.internal.logging.MetricsLogger;
 import com.android.settings.R;
-import com.android.settings.SettingsPreferenceFragment;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-public class ZenAccessSettings extends SettingsPreferenceFragment {
+public class ZenAccessSettings extends EmptyTextSettings {
 
     private final SettingObserver mObserver = new SettingObserver();
 
     private Context mContext;
     private PackageManager mPkgMan;
     private NotificationManager mNoMan;
-    private TextView mEmpty;
 
     @Override
     protected int getMetricsCategory() {
@@ -76,12 +71,9 @@ public class ZenAccessSettings extends SettingsPreferenceFragment {
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-            Bundle savedInstanceState) {
-        final View v =  inflater.inflate(R.layout.managed_service_settings, container, false);
-        mEmpty = (TextView) v.findViewById(android.R.id.empty);
-        mEmpty.setText(R.string.zen_access_empty_text);
-        return v;
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        setEmptyText(R.string.zen_access_empty_text);
     }
 
     @Override
@@ -141,7 +133,6 @@ public class ZenAccessSettings extends SettingsPreferenceFragment {
             });
             screen.addPreference(pref);
         }
-        mEmpty.setVisibility(apps.isEmpty() ? View.VISIBLE : View.GONE);
     }
 
     private boolean hasAccess(String pkg) {