1 /* 2 * Copyright (C) 2016 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.deskclock; 18 19 import android.content.Context; 20 import android.widget.TextView; 21 22 import com.android.deskclock.uidata.UiDataModel; 23 24 import static android.text.format.DateUtils.HOUR_IN_MILLIS; 25 import static android.text.format.DateUtils.MINUTE_IN_MILLIS; 26 import static android.text.format.DateUtils.SECOND_IN_MILLIS; 27 28 /** 29 * A controller which will format a provided time in millis to display as a stopwatch. 30 */ 31 public final class StopwatchTextController { 32 33 private final TextView mMainTextView; 34 private final TextView mHundredthsTextView; 35 36 private long mLastTime = Long.MIN_VALUE; 37 38 public StopwatchTextController(TextView mainTextView, TextView hundredthsTextView) { 39 mMainTextView = mainTextView; 40 mHundredthsTextView = hundredthsTextView; 41 } 42 43 public void setTimeString(long accumulatedTime) { 44 // Since time is only displayed to centiseconds, if there is a change at the milliseconds 45 // level but not the centiseconds level, we can avoid unnecessary work. 46 if ((mLastTime / 10) == (accumulatedTime / 10)) { 47 return; 48 } 49 50 final int hours = (int) (accumulatedTime / HOUR_IN_MILLIS); 51 int remainder = (int) (accumulatedTime % HOUR_IN_MILLIS); 52 53 final int minutes = (int) (remainder / MINUTE_IN_MILLIS); 54 remainder = (int) (remainder % MINUTE_IN_MILLIS); 55 56 final int seconds = (int) (remainder / SECOND_IN_MILLIS); 57 remainder = (int) (remainder % SECOND_IN_MILLIS); 58 59 mHundredthsTextView.setText(UiDataModel.getUiDataModel().getFormattedNumber( 60 remainder / 10, 2)); 61 62 // Avoid unnecessary computations and garbage creation if seconds have not changed since 63 // last layout pass. 64 if ((mLastTime / SECOND_IN_MILLIS) != (accumulatedTime / SECOND_IN_MILLIS)) { 65 final Context context = mMainTextView.getContext(); 66 final String time = Utils.getTimeString(context, hours, minutes, seconds); 67 mMainTextView.setText(time); 68 } 69 mLastTime = accumulatedTime; 70 } 71 } 72
