Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.example.android.wearable.watchface; |
| 18 | |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 19 | import android.content.BroadcastReceiver; |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 20 | import android.content.ContentUris; |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 21 | import android.content.Context; |
| 22 | import android.content.Intent; |
| 23 | import android.content.IntentFilter; |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 24 | import android.database.Cursor; |
| 25 | import android.graphics.Canvas; |
| 26 | import android.graphics.Color; |
Filip Gruszczynski | d8c3861 | 2014-12-02 10:28:01 -0800 | [diff] [blame] | 27 | import android.graphics.Rect; |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 28 | import android.net.Uri; |
| 29 | import android.os.AsyncTask; |
| 30 | import android.os.Handler; |
| 31 | import android.os.Message; |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 32 | import android.os.PowerManager; |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 33 | import android.support.wearable.provider.WearableCalendarContract; |
| 34 | import android.support.wearable.watchface.CanvasWatchFaceService; |
| 35 | import android.support.wearable.watchface.WatchFaceStyle; |
| 36 | import android.text.DynamicLayout; |
| 37 | import android.text.Editable; |
| 38 | import android.text.Html; |
| 39 | import android.text.Layout; |
| 40 | import android.text.SpannableStringBuilder; |
| 41 | import android.text.TextPaint; |
| 42 | import android.text.format.DateUtils; |
| 43 | import android.util.Log; |
| 44 | import android.view.SurfaceHolder; |
| 45 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 46 | /** |
| 47 | * Proof of concept sample watch face that demonstrates how a watch face can load calendar data. |
| 48 | */ |
| 49 | public class CalendarWatchFaceService extends CanvasWatchFaceService { |
| 50 | private static final String TAG = "CalendarWatchFace"; |
| 51 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 52 | @Override |
| 53 | public Engine onCreateEngine() { |
| 54 | return new Engine(); |
| 55 | } |
| 56 | |
| 57 | private class Engine extends CanvasWatchFaceService.Engine { |
| 58 | |
| 59 | static final int BACKGROUND_COLOR = Color.BLACK; |
| 60 | static final int FOREGROUND_COLOR = Color.WHITE; |
| 61 | static final int TEXT_SIZE = 25; |
| 62 | static final int MSG_LOAD_MEETINGS = 0; |
| 63 | |
| 64 | /** Editable string containing the text to draw with the number of meetings in bold. */ |
| 65 | final Editable mEditable = new SpannableStringBuilder(); |
| 66 | |
| 67 | /** Width specified when {@link #mLayout} was created. */ |
| 68 | int mLayoutWidth; |
| 69 | |
| 70 | /** Layout to wrap {@link #mEditable} onto multiple lines. */ |
| 71 | DynamicLayout mLayout; |
| 72 | |
| 73 | /** Paint used to draw text. */ |
| 74 | final TextPaint mTextPaint = new TextPaint(); |
| 75 | |
| 76 | int mNumMeetings; |
| 77 | |
| 78 | private AsyncTask<Void, Void, Integer> mLoadMeetingsTask; |
| 79 | |
| 80 | /** Handler to load the meetings once a minute in interactive mode. */ |
| 81 | final Handler mLoadMeetingsHandler = new Handler() { |
| 82 | @Override |
| 83 | public void handleMessage(Message message) { |
| 84 | switch (message.what) { |
| 85 | case MSG_LOAD_MEETINGS: |
| 86 | cancelLoadMeetingTask(); |
| 87 | mLoadMeetingsTask = new LoadMeetingsTask(); |
| 88 | mLoadMeetingsTask.execute(); |
| 89 | break; |
| 90 | } |
| 91 | } |
| 92 | }; |
| 93 | |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 94 | private boolean mIsReceiverRegistered; |
| 95 | |
| 96 | private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| 97 | @Override |
| 98 | public void onReceive(Context context, Intent intent) { |
| 99 | if (Intent.ACTION_PROVIDER_CHANGED.equals(intent.getAction()) |
| 100 | && WearableCalendarContract.CONTENT_URI.equals(intent.getData())) { |
| 101 | cancelLoadMeetingTask(); |
| 102 | mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS); |
| 103 | } |
| 104 | } |
| 105 | }; |
| 106 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 107 | @Override |
| 108 | public void onCreate(SurfaceHolder holder) { |
| 109 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 110 | Log.d(TAG, "onCreate"); |
| 111 | } |
| 112 | super.onCreate(holder); |
| 113 | setWatchFaceStyle(new WatchFaceStyle.Builder(CalendarWatchFaceService.this) |
| 114 | .setCardPeekMode(WatchFaceStyle.PEEK_MODE_VARIABLE) |
| 115 | .setBackgroundVisibility(WatchFaceStyle.BACKGROUND_VISIBILITY_INTERRUPTIVE) |
| 116 | .setShowSystemUiTime(false) |
| 117 | .build()); |
| 118 | |
| 119 | mTextPaint.setColor(FOREGROUND_COLOR); |
| 120 | mTextPaint.setTextSize(TEXT_SIZE); |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 121 | |
| 122 | mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS); |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | @Override |
| 126 | public void onDestroy() { |
| 127 | mLoadMeetingsHandler.removeMessages(MSG_LOAD_MEETINGS); |
| 128 | cancelLoadMeetingTask(); |
| 129 | super.onDestroy(); |
| 130 | } |
| 131 | |
| 132 | @Override |
Filip Gruszczynski | d8c3861 | 2014-12-02 10:28:01 -0800 | [diff] [blame] | 133 | public void onDraw(Canvas canvas, Rect bounds) { |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 134 | // Create or update mLayout if necessary. |
Filip Gruszczynski | d8c3861 | 2014-12-02 10:28:01 -0800 | [diff] [blame] | 135 | if (mLayout == null || mLayoutWidth != bounds.width()) { |
| 136 | mLayoutWidth = bounds.width(); |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 137 | mLayout = new DynamicLayout(mEditable, mTextPaint, mLayoutWidth, |
| 138 | Layout.Alignment.ALIGN_NORMAL, 1 /* spacingMult */, 0 /* spacingAdd */, |
| 139 | false /* includePad */); |
| 140 | } |
| 141 | |
| 142 | // Update the contents of mEditable. |
| 143 | mEditable.clear(); |
| 144 | mEditable.append(Html.fromHtml(getResources().getQuantityString( |
| 145 | R.plurals.calendar_meetings, mNumMeetings, mNumMeetings))); |
| 146 | |
| 147 | // Draw the text on a solid background. |
| 148 | canvas.drawColor(BACKGROUND_COLOR); |
| 149 | mLayout.draw(canvas); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | public void onVisibilityChanged(boolean visible) { |
| 154 | super.onVisibilityChanged(visible); |
| 155 | if (visible) { |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 156 | IntentFilter filter = new IntentFilter(Intent.ACTION_PROVIDER_CHANGED); |
| 157 | filter.addDataScheme("content"); |
| 158 | filter.addDataAuthority(WearableCalendarContract.AUTHORITY, null); |
| 159 | registerReceiver(mBroadcastReceiver, filter); |
| 160 | mIsReceiverRegistered = true; |
| 161 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 162 | mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS); |
| 163 | } else { |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 164 | if (mIsReceiverRegistered) { |
| 165 | unregisterReceiver(mBroadcastReceiver); |
| 166 | mIsReceiverRegistered = false; |
| 167 | } |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 168 | mLoadMeetingsHandler.removeMessages(MSG_LOAD_MEETINGS); |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 169 | } |
| 170 | } |
| 171 | |
| 172 | private void onMeetingsLoaded(Integer result) { |
| 173 | if (result != null) { |
| 174 | mNumMeetings = result; |
| 175 | invalidate(); |
| 176 | } |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | private void cancelLoadMeetingTask() { |
| 180 | if (mLoadMeetingsTask != null) { |
| 181 | mLoadMeetingsTask.cancel(true); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Asynchronous task to load the meetings from the content provider and report the number of |
| 187 | * meetings back via {@link #onMeetingsLoaded}. |
| 188 | */ |
| 189 | private class LoadMeetingsTask extends AsyncTask<Void, Void, Integer> { |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 190 | private PowerManager.WakeLock mWakeLock; |
| 191 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 192 | @Override |
| 193 | protected Integer doInBackground(Void... voids) { |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 194 | PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE); |
| 195 | mWakeLock = powerManager.newWakeLock( |
| 196 | PowerManager.PARTIAL_WAKE_LOCK, "CalendarWatchFaceWakeLock"); |
| 197 | mWakeLock.acquire(); |
| 198 | |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 199 | long begin = System.currentTimeMillis(); |
| 200 | Uri.Builder builder = |
| 201 | WearableCalendarContract.Instances.CONTENT_URI.buildUpon(); |
| 202 | ContentUris.appendId(builder, begin); |
| 203 | ContentUris.appendId(builder, begin + DateUtils.DAY_IN_MILLIS); |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 204 | final Cursor cursor = getContentResolver().query(builder.build(), |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 205 | null, null, null, null); |
| 206 | int numMeetings = cursor.getCount(); |
| 207 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 208 | Log.v(TAG, "Num meetings: " + numMeetings); |
| 209 | } |
| 210 | return numMeetings; |
| 211 | } |
| 212 | |
| 213 | @Override |
| 214 | protected void onPostExecute(Integer result) { |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 215 | releaseWakeLock(); |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 216 | onMeetingsLoaded(result); |
| 217 | } |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 218 | |
| 219 | @Override |
| 220 | protected void onCancelled() { |
| 221 | releaseWakeLock(); |
| 222 | } |
| 223 | |
| 224 | private void releaseWakeLock() { |
| 225 | if (mWakeLock != null) { |
| 226 | mWakeLock.release(); |
| 227 | mWakeLock = null; |
| 228 | } |
| 229 | } |
Griff Hazen | b66d58c | 2014-11-20 14:20:56 -0800 | [diff] [blame] | 230 | } |
| 231 | } |
Kirsten Koa | 88b112a | 2014-11-25 14:24:16 -0800 | [diff] [blame] | 232 | } |