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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.deskclock;
import android.content.Context;
import android.widget.TextView;
import com.android.deskclock.uidata.UiDataModel;
import static android.text.format.DateUtils.HOUR_IN_MILLIS;
import static android.text.format.DateUtils.MINUTE_IN_MILLIS;
import static android.text.format.DateUtils.SECOND_IN_MILLIS;
/**
* A controller which will format a provided time in millis to display as a stopwatch.
*/
public final class StopwatchTextController {
private final TextView mMainTextView;
private final TextView mHundredthsTextView;
private long mLastTime = Long.MIN_VALUE;
public StopwatchTextController(TextView mainTextView, TextView hundredthsTextView) {
mMainTextView = mainTextView;
mHundredthsTextView = hundredthsTextView;
}
public void setTimeString(long accumulatedTime) {
// Since time is only displayed to centiseconds, if there is a change at the milliseconds
// level but not the centiseconds level, we can avoid unnecessary work.
if ((mLastTime / 10) == (accumulatedTime / 10)) {
return;
}
final int hours = (int) (accumulatedTime / HOUR_IN_MILLIS);
int remainder = (int) (accumulatedTime % HOUR_IN_MILLIS);
final int minutes = (int) (remainder / MINUTE_IN_MILLIS);
remainder = (int) (remainder % MINUTE_IN_MILLIS);
final int seconds = (int) (remainder / SECOND_IN_MILLIS);
remainder = (int) (remainder % SECOND_IN_MILLIS);
mHundredthsTextView.setText(UiDataModel.getUiDataModel().getFormattedNumber(
remainder / 10, 2));
// Avoid unnecessary computations and garbage creation if seconds have not changed since
// last layout pass.
if ((mLastTime / SECOND_IN_MILLIS) != (accumulatedTime / SECOND_IN_MILLIS)) {
final Context context = mMainTextView.getContext();
final String time = Utils.getTimeString(context, hours, minutes, seconds);
mMainTextView.setText(time);
}
mLastTime = accumulatedTime;
}
}
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