Talkback improvements for Settings screens.

Bug: 21164141
Change-Id: I7444261ccf967f6db70c9fe44a00bd3f19ceb975

src/com/android/settings/AccessiblePreferenceCategory.java

@@ -0,0 +1,43 @@
+/*
+ * 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;
+
+import android.content.Context;
+import android.preference.PreferenceCategory;
+import android.view.View;
+
+/**
+ * Preference category that accepts a content description for accessibility.
+ */
+public class AccessiblePreferenceCategory extends PreferenceCategory {
+    private String mContentDescription;
+
+    public AccessiblePreferenceCategory(Context context) {
+        super(context);
+    }
+
+    public void setContentDescription(String contentDescription) {
+        mContentDescription = contentDescription;
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+
+        view.setContentDescription(mContentDescription);
+    }
+}