/*
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* Copyright (C) 2008 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.systemui.statusbar.policy;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.res.TypedArray;
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import android.icu.text.DateFormat;
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import android.icu.text.DisplayContext;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import android.widget.TextView;
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import com.android.systemui.Dependency;
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import com.android.systemui.R;
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import java.util.Date;
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import java.util.Locale;
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public class DateView extends TextView {
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private static final String TAG = "DateView";
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private final Date mCurrentTime = new Date();
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private DateFormat mDateFormat;
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private String mLastText;
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private String mDatePattern;
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private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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final String action = intent.getAction();
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if (Intent.ACTION_TIME_TICK.equals(action)
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|| Intent.ACTION_TIME_CHANGED.equals(action)
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|| Intent.ACTION_TIMEZONE_CHANGED.equals(action)
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|| Intent.ACTION_LOCALE_CHANGED.equals(action)) {
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if (Intent.ACTION_LOCALE_CHANGED.equals(action)
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|| Intent.ACTION_TIMEZONE_CHANGED.equals(action)) {
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// need to get a fresh date format
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getHandler().post(() -> mDateFormat = null);
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}
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getHandler().post(() -> updateClock());
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}
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}
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};
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public DateView(Context context, AttributeSet attrs) {
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super(context, attrs);
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TypedArray a = context.getTheme().obtainStyledAttributes(
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attrs,
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R.styleable.DateView,
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0, 0);
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try {
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mDatePattern = a.getString(R.styleable.DateView_datePattern);
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} finally {
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a.recycle();
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}
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if (mDatePattern == null) {
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mDatePattern = getContext().getString(R.string.system_ui_date_pattern);
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}
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}
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@Override
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_TIME_TICK);
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filter.addAction(Intent.ACTION_TIME_CHANGED);
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filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
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filter.addAction(Intent.ACTION_LOCALE_CHANGED);
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getContext().registerReceiver(mIntentReceiver, filter, null,
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Dependency.get(Dependency.TIME_TICK_HANDLER));
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updateClock();
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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mDateFormat = null; // reload the locale next time
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getContext().unregisterReceiver(mIntentReceiver);
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}
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protected void updateClock() {
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if (mDateFormat == null) {
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final Locale l = Locale.getDefault();
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DateFormat format = DateFormat.getInstanceForSkeleton(mDatePattern, l);
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format.setContext(DisplayContext.CAPITALIZATION_FOR_STANDALONE);
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mDateFormat = format;
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}
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mCurrentTime.setTime(System.currentTimeMillis());
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final String text = mDateFormat.format(mCurrentTime);
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if (!text.equals(mLastText)) {
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setText(text);
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mLastText = text;
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}
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}
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public void setDatePattern(String pattern) {
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if (TextUtils.equals(pattern, mDatePattern)) {
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return;
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}
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mDatePattern = pattern;
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mDateFormat = null;
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if (isAttachedToWindow()) {
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updateClock();
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}
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}
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}
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