d051e65d3c
Support phone number talkback in about phone UI pages. Bug: 182923869 Test: local, junit Change-Id: I159827070a954dee13230ff7cf6de81dbbaa7545
66 lines
2.2 KiB
Java
66 lines
2.2 KiB
Java
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.deviceinfo;
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import android.text.Spannable;
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import android.text.SpannableStringBuilder;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.style.TtsSpan;
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import java.util.Arrays;
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import java.util.stream.IntStream;
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/**
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* Helper class to detect format of phone number.
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*/
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public class PhoneNumberUtil {
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/**
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* Convert given text to support phone number talkback.
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* @param text given
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* @return converted text
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*/
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public static CharSequence expandByTts(CharSequence text) {
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if ((text == null) || (text.length() <= 0)
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|| (!isPhoneNumberDigits(text))) {
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return text;
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}
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Spannable spannable = new SpannableStringBuilder(text);
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TtsSpan span = new TtsSpan.DigitsBuilder(text.toString()).build();
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spannable.setSpan(span, 0, spannable.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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return spannable;
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}
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/**
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* Check if given text may contains a phone id related numbers.
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* (ex: phone number, IMEI, ICCID)
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* @param text given
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* @return true when given text is a phone id related number.
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*/
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private static boolean isPhoneNumberDigits(CharSequence text) {
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long textLength = (long)text.length();
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return (textLength == text.chars()
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.filter(c -> isPhoneNumberDigit(c)).count());
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}
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private static boolean isPhoneNumberDigit(int c) {
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return ((c >= (int)'0') && (c <= (int)'9'))
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|| (c == (int)'-') || (c == (int)'+')
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|| (c == (int)'(') || (c == (int)')');
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}
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}
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