Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 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 | |
Jim Miller | 5ecd811 | 2013-01-09 18:50:26 -0800 | [diff] [blame] | 17 | package com.android.keyguard; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 18 | |
| 19 | import android.content.BroadcastReceiver; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | import android.content.IntentFilter; |
| 23 | import android.database.ContentObserver; |
| 24 | import android.graphics.Typeface; |
| 25 | import android.os.Handler; |
Amith Yamasani | cd75706 | 2012-10-19 18:23:52 -0700 | [diff] [blame] | 26 | import android.os.UserHandle; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 27 | import android.provider.Settings; |
| 28 | import android.text.format.DateFormat; |
| 29 | import android.util.AttributeSet; |
| 30 | import android.view.View; |
| 31 | import android.widget.RelativeLayout; |
| 32 | import android.widget.TextView; |
| 33 | |
| 34 | import java.lang.ref.WeakReference; |
| 35 | import java.text.DateFormatSymbols; |
| 36 | import java.util.Calendar; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 37 | |
| 38 | /** |
| 39 | * Displays the time |
| 40 | */ |
| 41 | public class ClockView extends RelativeLayout { |
Christian Robertson | 24de605 | 2012-09-25 21:40:28 -0700 | [diff] [blame] | 42 | private static final String ANDROID_CLOCK_FONT_FILE = "/system/fonts/AndroidClock.ttf"; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 43 | private final static String M12 = "h:mm"; |
Jim Miller | c801b21 | 2013-04-02 16:03:02 -0700 | [diff] [blame] | 44 | private final static String M24 = "HH:mm"; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 45 | |
| 46 | private Calendar mCalendar; |
| 47 | private String mFormat; |
| 48 | private TextView mTimeView; |
| 49 | private AmPm mAmPm; |
| 50 | private ContentObserver mFormatChangeObserver; |
| 51 | private int mAttached = 0; // for debugging - tells us whether attach/detach is unbalanced |
| 52 | |
| 53 | /* called by system on minute ticks */ |
| 54 | private final Handler mHandler = new Handler(); |
| 55 | private BroadcastReceiver mIntentReceiver; |
| 56 | |
| 57 | private static class TimeChangedReceiver extends BroadcastReceiver { |
| 58 | private WeakReference<ClockView> mClock; |
| 59 | private Context mContext; |
| 60 | |
| 61 | public TimeChangedReceiver(ClockView clock) { |
| 62 | mClock = new WeakReference<ClockView>(clock); |
| 63 | mContext = clock.getContext(); |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public void onReceive(Context context, Intent intent) { |
| 68 | // Post a runnable to avoid blocking the broadcast. |
| 69 | final boolean timezoneChanged = |
| 70 | intent.getAction().equals(Intent.ACTION_TIMEZONE_CHANGED); |
| 71 | final ClockView clock = mClock.get(); |
| 72 | if (clock != null) { |
| 73 | clock.mHandler.post(new Runnable() { |
| 74 | public void run() { |
| 75 | if (timezoneChanged) { |
| 76 | clock.mCalendar = Calendar.getInstance(); |
| 77 | } |
| 78 | clock.updateTime(); |
| 79 | } |
| 80 | }); |
| 81 | } else { |
| 82 | try { |
| 83 | mContext.unregisterReceiver(this); |
| 84 | } catch (RuntimeException e) { |
| 85 | // Shouldn't happen |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | }; |
| 90 | |
| 91 | static class AmPm { |
| 92 | private TextView mAmPmTextView; |
| 93 | private String mAmString, mPmString; |
| 94 | |
| 95 | AmPm(View parent, Typeface tf) { |
| 96 | // No longer used, uncomment if we decide to use AM/PM indicator again |
| 97 | // mAmPmTextView = (TextView) parent.findViewById(R.id.am_pm); |
| 98 | if (mAmPmTextView != null && tf != null) { |
| 99 | mAmPmTextView.setTypeface(tf); |
| 100 | } |
| 101 | |
| 102 | String[] ampm = new DateFormatSymbols().getAmPmStrings(); |
| 103 | mAmString = ampm[0]; |
| 104 | mPmString = ampm[1]; |
| 105 | } |
| 106 | |
| 107 | void setShowAmPm(boolean show) { |
| 108 | if (mAmPmTextView != null) { |
| 109 | mAmPmTextView.setVisibility(show ? View.VISIBLE : View.GONE); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | void setIsMorning(boolean isMorning) { |
| 114 | if (mAmPmTextView != null) { |
| 115 | mAmPmTextView.setText(isMorning ? mAmString : mPmString); |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | private static class FormatChangeObserver extends ContentObserver { |
| 121 | private WeakReference<ClockView> mClock; |
| 122 | private Context mContext; |
| 123 | public FormatChangeObserver(ClockView clock) { |
| 124 | super(new Handler()); |
| 125 | mClock = new WeakReference<ClockView>(clock); |
| 126 | mContext = clock.getContext(); |
| 127 | } |
| 128 | @Override |
| 129 | public void onChange(boolean selfChange) { |
| 130 | ClockView digitalClock = mClock.get(); |
| 131 | if (digitalClock != null) { |
| 132 | digitalClock.setDateFormat(); |
| 133 | digitalClock.updateTime(); |
| 134 | } else { |
| 135 | try { |
| 136 | mContext.getContentResolver().unregisterContentObserver(this); |
| 137 | } catch (RuntimeException e) { |
| 138 | // Shouldn't happen |
| 139 | } |
| 140 | } |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | public ClockView(Context context) { |
| 145 | this(context, null); |
| 146 | } |
| 147 | |
| 148 | public ClockView(Context context, AttributeSet attrs) { |
| 149 | super(context, attrs); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | protected void onFinishInflate() { |
| 154 | super.onFinishInflate(); |
| 155 | mTimeView = (TextView) findViewById(R.id.clock_text); |
Christian Robertson | 24de605 | 2012-09-25 21:40:28 -0700 | [diff] [blame] | 156 | mTimeView.setTypeface(Typeface.createFromFile(ANDROID_CLOCK_FONT_FILE)); |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 157 | mAmPm = new AmPm(this, null); |
| 158 | mCalendar = Calendar.getInstance(); |
| 159 | setDateFormat(); |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | protected void onAttachedToWindow() { |
| 164 | super.onAttachedToWindow(); |
| 165 | |
| 166 | mAttached++; |
| 167 | |
| 168 | /* monitor time ticks, time changed, timezone */ |
| 169 | if (mIntentReceiver == null) { |
| 170 | mIntentReceiver = new TimeChangedReceiver(this); |
| 171 | IntentFilter filter = new IntentFilter(); |
| 172 | filter.addAction(Intent.ACTION_TIME_TICK); |
| 173 | filter.addAction(Intent.ACTION_TIME_CHANGED); |
| 174 | filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
Amith Yamasani | cd75706 | 2012-10-19 18:23:52 -0700 | [diff] [blame] | 175 | mContext.registerReceiverAsUser(mIntentReceiver, UserHandle.OWNER, filter, null, null ); |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | /* monitor 12/24-hour display preference */ |
| 179 | if (mFormatChangeObserver == null) { |
| 180 | mFormatChangeObserver = new FormatChangeObserver(this); |
| 181 | mContext.getContentResolver().registerContentObserver( |
| 182 | Settings.System.CONTENT_URI, true, mFormatChangeObserver); |
| 183 | } |
| 184 | |
| 185 | updateTime(); |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | protected void onDetachedFromWindow() { |
| 190 | super.onDetachedFromWindow(); |
| 191 | |
| 192 | mAttached--; |
| 193 | |
| 194 | if (mIntentReceiver != null) { |
| 195 | mContext.unregisterReceiver(mIntentReceiver); |
| 196 | } |
| 197 | if (mFormatChangeObserver != null) { |
| 198 | mContext.getContentResolver().unregisterContentObserver( |
| 199 | mFormatChangeObserver); |
| 200 | } |
| 201 | |
| 202 | mFormatChangeObserver = null; |
| 203 | mIntentReceiver = null; |
| 204 | } |
| 205 | |
| 206 | void updateTime(Calendar c) { |
| 207 | mCalendar = c; |
| 208 | updateTime(); |
| 209 | } |
| 210 | |
| 211 | public void updateTime() { |
| 212 | mCalendar.setTimeInMillis(System.currentTimeMillis()); |
| 213 | |
| 214 | CharSequence newTime = DateFormat.format(mFormat, mCalendar); |
| 215 | mTimeView.setText(newTime); |
| 216 | mAmPm.setIsMorning(mCalendar.get(Calendar.AM_PM) == 0); |
| 217 | } |
| 218 | |
| 219 | private void setDateFormat() { |
| 220 | mFormat = android.text.format.DateFormat.is24HourFormat(getContext()) ? M24 : M12; |
| 221 | mAmPm.setShowAmPm(mFormat.equals(M12)); |
| 222 | } |
| 223 | } |