1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.tv.twopanelsettings.slices; 18 19 import android.content.Context; 20 import android.text.TextUtils; 21 import android.util.AttributeSet; 22 import android.view.View; 23 24 import androidx.preference.Preference; 25 import androidx.preference.PreferenceViewHolder; 26 27 /** 28 * Preference that allows external classes to set its view's content description for accessibility 29 * purposes. 30 */ 31 public class CustomContentDescriptionPreference extends Preference implements 32 HasCustomContentDescription { 33 34 private String mContentDescription; 35 CustomContentDescriptionPreference(Context context)36 public CustomContentDescriptionPreference(Context context) { 37 super(context); 38 } 39 CustomContentDescriptionPreference(Context context, AttributeSet attrs)40 public CustomContentDescriptionPreference(Context context, AttributeSet attrs) { 41 super(context, attrs); 42 } 43 44 @Override onBindViewHolder(PreferenceViewHolder holder)45 public void onBindViewHolder(PreferenceViewHolder holder) { 46 super.onBindViewHolder(holder); 47 if (!TextUtils.isEmpty(mContentDescription)) { 48 holder.itemView.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_POLITE); 49 holder.itemView.setContentDescription(mContentDescription); 50 } 51 } 52 53 /** 54 * Sets the accessibility content description that will be read to the TalkBack users when they 55 * focus on this preference. 56 */ setContentDescription(String contentDescription)57 public void setContentDescription(String contentDescription) { 58 this.mContentDescription = contentDescription; 59 } 60 getContentDescription()61 public String getContentDescription() { 62 return mContentDescription; 63 } 64 } 65