1 /* 2 * Copyright (C) 2011 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.contacts.util; 18 19 import android.content.Context; 20 import android.os.AsyncTask; 21 import android.telephony.PhoneNumberFormattingTextWatcher; 22 import android.widget.TextView; 23 24 import com.android.contacts.ContactsUtils; 25 26 public final class PhoneNumberFormatter { PhoneNumberFormatter()27 private PhoneNumberFormatter() {} 28 29 /** 30 * Load {@link TextWatcherLoadAsyncTask} in a worker thread and set it to a {@link TextView}. 31 */ 32 private static class TextWatcherLoadAsyncTask extends 33 AsyncTask<Void, Void, PhoneNumberFormattingTextWatcher> { 34 private final String mCountryCode; 35 private final TextView mTextView; 36 TextWatcherLoadAsyncTask(String countryCode, TextView textView)37 public TextWatcherLoadAsyncTask(String countryCode, TextView textView) { 38 mCountryCode = countryCode; 39 mTextView = textView; 40 } 41 42 @Override doInBackground(Void... params)43 protected PhoneNumberFormattingTextWatcher doInBackground(Void... params) { 44 return new PhoneNumberFormattingTextWatcher(mCountryCode); 45 } 46 47 @Override onPostExecute(PhoneNumberFormattingTextWatcher watcher)48 protected void onPostExecute(PhoneNumberFormattingTextWatcher watcher) { 49 if (watcher == null || isCancelled()) { 50 return; // May happen if we cancel the task. 51 } 52 // Setting a text changed listener is safe even after the view is detached. 53 mTextView.addTextChangedListener(watcher); 54 55 // Note changes the user made before onPostExecute() will not be formatted, but 56 // once they type the next letter we format the entire text, so it's not a big deal. 57 // (And loading PhoneNumberFormattingTextWatcher is usually fast enough.) 58 // We could use watcher.afterTextChanged(mTextView.getEditableText()) to force format 59 // the existing content here, but that could cause unwanted results. 60 // (e.g. the contact editor thinks the user changed the content, and would save 61 // when closed even when the user didn't make other changes.) 62 } 63 } 64 65 /** 66 * Delay-set {@link PhoneNumberFormattingTextWatcher} to a {@link TextView}. 67 */ setPhoneNumberFormattingTextWatcher(Context context, TextView textView)68 public static final void setPhoneNumberFormattingTextWatcher(Context context, 69 TextView textView) { 70 new TextWatcherLoadAsyncTask(ContactsUtils.getCurrentCountryIso(context), textView) 71 .executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void[]) null); 72 } 73 } 74