Java tutorial
/* * 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.data; import android.annotation.TargetApi; import android.app.Notification; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.res.Resources; import android.graphics.drawable.Icon; import android.os.Build; import android.os.SystemClock; import android.support.annotation.StringRes; import android.support.v4.content.ContextCompat; import android.widget.RemoteViews; import com.android.deskclock.HandleDeskClockApiCalls; import com.android.deskclock.R; import com.android.deskclock.Utils; import com.android.deskclock.stopwatch.StopwatchService; import java.util.ArrayList; import java.util.List; import static android.view.View.GONE; import static android.view.View.VISIBLE; /** * Builds N-style notification to reflect the latest state of the stopwatch and recorded laps. */ @TargetApi(Build.VERSION_CODES.N) class StopwatchNotificationBuilderN implements StopwatchModel.NotificationBuilder { @Override public Notification build(Context context, NotificationModel nm, Stopwatch stopwatch) { @StringRes final int eventLabel = R.string.label_notification; // Intent to load the app when the notification is tapped. final Intent showApp = new Intent(context, HandleDeskClockApiCalls.class) .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK).setAction(HandleDeskClockApiCalls.ACTION_SHOW_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); final PendingIntent pendingShowApp = PendingIntent.getActivity(context, 0, showApp, PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT); // Compute some values required below. final boolean running = stopwatch.isRunning(); final String pname = context.getPackageName(); final Resources res = context.getResources(); final long base = SystemClock.elapsedRealtime() - stopwatch.getTotalTime(); final RemoteViews content = new RemoteViews(pname, R.layout.chronometer_notif_content); content.setChronometer(R.id.chronometer, base, null, running); final List<Notification.Action> actions = new ArrayList<>(2); if (running) { // Left button: Pause final Intent pause = new Intent(context, StopwatchService.class) .setAction(HandleDeskClockApiCalls.ACTION_PAUSE_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); final Icon icon1 = Icon.createWithResource(context, R.drawable.ic_pause_24dp); final CharSequence title1 = res.getText(R.string.sw_pause_button); final PendingIntent intent1 = Utils.pendingServiceIntent(context, pause); actions.add(new Notification.Action.Builder(icon1, title1, intent1).build()); // Right button: Add Lap if (DataModel.getDataModel().canAddMoreLaps()) { final Intent lap = new Intent(context, StopwatchService.class) .setAction(HandleDeskClockApiCalls.ACTION_LAP_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); final Icon icon2 = Icon.createWithResource(context, R.drawable.ic_sw_lap_24dp); final CharSequence title2 = res.getText(R.string.sw_lap_button); final PendingIntent intent2 = Utils.pendingServiceIntent(context, lap); actions.add(new Notification.Action.Builder(icon2, title2, intent2).build()); } // Show the current lap number if any laps have been recorded. final int lapCount = DataModel.getDataModel().getLaps().size(); if (lapCount > 0) { final int lapNumber = lapCount + 1; final String lap = res.getString(R.string.sw_notification_lap_number, lapNumber); content.setTextViewText(R.id.state, lap); content.setViewVisibility(R.id.state, VISIBLE); } else { content.setViewVisibility(R.id.state, GONE); } } else { // Left button: Start final Intent start = new Intent(context, StopwatchService.class) .setAction(HandleDeskClockApiCalls.ACTION_START_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); final Icon icon1 = Icon.createWithResource(context, R.drawable.ic_start_24dp); final CharSequence title1 = res.getText(R.string.sw_start_button); final PendingIntent intent1 = Utils.pendingServiceIntent(context, start); actions.add(new Notification.Action.Builder(icon1, title1, intent1).build()); // Right button: Reset (dismisses notification and resets stopwatch) final Intent reset = new Intent(context, StopwatchService.class) .setAction(HandleDeskClockApiCalls.ACTION_RESET_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); final Icon icon2 = Icon.createWithResource(context, R.drawable.ic_reset_24dp); final CharSequence title2 = res.getText(R.string.sw_reset_button); final PendingIntent intent2 = Utils.pendingServiceIntent(context, reset); actions.add(new Notification.Action.Builder(icon2, title2, intent2).build()); // Indicate the stopwatch is paused. content.setTextViewText(R.id.state, res.getString(R.string.swn_paused)); content.setViewVisibility(R.id.state, VISIBLE); } // Swipe away will reset the stopwatch without bringing forward the app. final Intent reset = new Intent(context, StopwatchService.class) .setAction(HandleDeskClockApiCalls.ACTION_RESET_STOPWATCH) .putExtra(HandleDeskClockApiCalls.EXTRA_EVENT_LABEL, eventLabel); return new Notification.Builder(context).setLocalOnly(true).setOngoing(running) .setCustomContentView(content).setContentIntent(pendingShowApp).setAutoCancel(stopwatch.isPaused()) .setPriority(Notification.PRIORITY_MAX).setSmallIcon(R.drawable.stat_notify_stopwatch) .setGroup(nm.getStopwatchNotificationGroupKey()) .setStyle(new Notification.DecoratedCustomViewStyle()) .setDeleteIntent(Utils.pendingServiceIntent(context, reset)) .setActions(actions.toArray(new Notification.Action[actions.size()])) .setColor(ContextCompat.getColor(context, R.color.default_background)).build(); } }