| /* |
| * Copyright (C) 2008 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.systemui.statusbar.policy; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.TypedArray; |
| import android.icu.text.DateFormat; |
| import android.icu.text.DisplayContext; |
| import android.os.Handler; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.widget.TextView; |
| |
| import com.android.systemui.Dependency; |
| import com.android.systemui.R; |
| import com.android.systemui.broadcast.BroadcastDispatcher; |
| |
| import java.util.Date; |
| import java.util.Locale; |
| |
| public class DateView extends TextView { |
| private static final String TAG = "DateView"; |
| |
| private final Date mCurrentTime = new Date(); |
| |
| private DateFormat mDateFormat; |
| private String mLastText; |
| private String mDatePattern; |
| private final BroadcastDispatcher mBroadcastDispatcher; |
| |
| private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| // If the handler is null, it means we received a broadcast while the view has not |
| // finished being attached or in the process of being detached. |
| // In that case, do not post anything. |
| Handler handler = getHandler(); |
| if (handler == null) return; |
| |
| final String action = intent.getAction(); |
| if (Intent.ACTION_TIME_TICK.equals(action) |
| || Intent.ACTION_TIME_CHANGED.equals(action) |
| || Intent.ACTION_TIMEZONE_CHANGED.equals(action) |
| || Intent.ACTION_LOCALE_CHANGED.equals(action)) { |
| if (Intent.ACTION_LOCALE_CHANGED.equals(action) |
| || Intent.ACTION_TIMEZONE_CHANGED.equals(action)) { |
| // need to get a fresh date format |
| handler.post(() -> mDateFormat = null); |
| } |
| handler.post(() -> updateClock()); |
| } |
| } |
| }; |
| |
| public DateView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| TypedArray a = context.getTheme().obtainStyledAttributes( |
| attrs, |
| R.styleable.DateView, |
| 0, 0); |
| |
| try { |
| mDatePattern = a.getString(R.styleable.DateView_datePattern); |
| } finally { |
| a.recycle(); |
| } |
| if (mDatePattern == null) { |
| mDatePattern = getContext().getString(R.string.system_ui_date_pattern); |
| } |
| mBroadcastDispatcher = Dependency.get(BroadcastDispatcher.class); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_TIME_TICK); |
| filter.addAction(Intent.ACTION_TIME_CHANGED); |
| filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| filter.addAction(Intent.ACTION_LOCALE_CHANGED); |
| mBroadcastDispatcher.registerReceiver(mIntentReceiver, filter, |
| Dependency.get(Dependency.TIME_TICK_HANDLER)); |
| |
| updateClock(); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| |
| mDateFormat = null; // reload the locale next time |
| mBroadcastDispatcher.unregisterReceiver(mIntentReceiver); |
| } |
| |
| protected void updateClock() { |
| if (mDateFormat == null) { |
| final Locale l = Locale.getDefault(); |
| DateFormat format = DateFormat.getInstanceForSkeleton(mDatePattern, l); |
| format.setContext(DisplayContext.CAPITALIZATION_FOR_STANDALONE); |
| mDateFormat = format; |
| } |
| |
| mCurrentTime.setTime(System.currentTimeMillis()); |
| |
| final String text = mDateFormat.format(mCurrentTime); |
| if (!text.equals(mLastText)) { |
| setText(text); |
| mLastText = text; |
| } |
| } |
| |
| public void setDatePattern(String pattern) { |
| if (TextUtils.equals(pattern, mDatePattern)) { |
| return; |
| } |
| mDatePattern = pattern; |
| mDateFormat = null; |
| if (isAttachedToWindow()) { |
| updateClock(); |
| } |
| } |
| } |