77b5d394ff
Synced to developers/samples/android commit 97b2cfe5ba6d8fa8daaf3273141b321b5fe9e910. Change-Id: I360cfa147e71dd519b841df41b4e878f86b9b27b
122 lines
3.9 KiB
Java
122 lines
3.9 KiB
Java
/*
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* Copyright (C) 2014 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.example.android.wearable.timer.util;
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/** Helper class to format the timer. Based on com.android.deskclock.timer.CountingTimerView. */
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public final class TimerFormat {
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private static final String TWO_DIGITS = "%02d";
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private static final String ONE_DIGIT = "%01d";
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private static final String NEG_TWO_DIGITS = "-%02d";
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private static final String NEG_ONE_DIGIT = "-%01d";
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private static String mHours;
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private static String mMinutes;
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private static String mSeconds;
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private TimerFormat() {
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}
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/**
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* Update the time to display. Separates that time into the hours, minutes, seconds.
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* Copied and shortened from com.android.deskclock.timer.CountingTimerView.
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*
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* @param time new time to display - in milliseconds
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*/
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private static void setTime(long time) {
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boolean neg = false;
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boolean showNeg = false;
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String format;
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if (time < 0) {
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time = -time;
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neg = showNeg = true;
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}
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long seconds = time / 1000;
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long hundreds = (time - seconds * 1000) / 10;
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long minutes = seconds / 60;
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seconds = seconds - minutes * 60;
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long hours = minutes / 60;
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minutes = minutes - hours * 60;
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if (hours > 999) {
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hours = 0;
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}
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// The time can be between 0 and -1 seconds, but the "truncated" equivalent time of hours
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// and minutes and seconds could be zero, so since we do not show fractions of seconds
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// when counting down, do not show the minus sign.
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if (hours == 0 && minutes == 0 && seconds == 0) {
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showNeg = false;
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}
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// Normalize and check if it is 'time' to invalidate
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if (!neg && hundreds != 0) {
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seconds++;
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if (seconds == 60) {
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seconds = 0;
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minutes++;
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if (minutes == 60) {
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minutes = 0;
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hours++;
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}
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}
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}
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// Hours may be empty
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if (hours >= 10) {
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format = showNeg ? NEG_TWO_DIGITS : TWO_DIGITS;
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mHours = String.format(format, hours);
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} else if (hours > 0) {
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format = showNeg ? NEG_ONE_DIGIT : ONE_DIGIT;
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mHours = String.format(format, hours);
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} else {
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mHours = null;
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}
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// Minutes are never empty and when hours are non-empty, must be two digits
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if (minutes >= 10 || hours > 0) {
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format = (showNeg && hours == 0) ? NEG_TWO_DIGITS : TWO_DIGITS;
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mMinutes = String.format(format, minutes);
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} else {
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format = (showNeg && hours == 0) ? NEG_ONE_DIGIT : ONE_DIGIT;
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mMinutes = String.format(format, minutes);
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}
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// Seconds are always two digits
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mSeconds = String.format(TWO_DIGITS, seconds);
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}
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/**
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* Based on com.android.deskclock.timer.CountingTimerView.
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*
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* @param time the time to format.
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* @return nicely formatted time.
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*/
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public static String getTimeString(long time) {
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setTime(time);
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if (mHours == null) {
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return String.format("%s:%s", mMinutes, mSeconds);
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}
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return String.format("%s:%s:%s", mHours, mMinutes, mSeconds);
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}
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}
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