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FindMyPhone / Wearable / src / com.example.android.wearable.findphone /

FindPhoneActivity.java

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/*
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 * Copyright (C) 2014 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.example.android.wearable.findphone;
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import android.app.Activity;
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import android.app.Notification;
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import android.app.Notification.Action;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.style.RelativeSizeSpan;
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public class FindPhoneActivity extends Activity {
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    private static final int FIND_PHONE_NOTIFICATION_ID = 2;
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    private static Notification.Builder notification;
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        // Create a notification with an action to toggle an alarm on the phone.
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        Intent toggleAlarmOperation = new Intent(this, FindPhoneService.class);
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        toggleAlarmOperation.setAction(FindPhoneService.ACTION_TOGGLE_ALARM);
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        PendingIntent toggleAlarmIntent = PendingIntent.getService(this, 0, toggleAlarmOperation,
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                PendingIntent.FLAG_CANCEL_CURRENT);
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        Action alarmAction = new Action(R.drawable.alarm_action_icon, "", toggleAlarmIntent);
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        // This intent turns off the alarm if the user dismisses the card from the wearable.
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        Intent cancelAlarmOperation = new Intent(this, FindPhoneService.class);
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        cancelAlarmOperation.setAction(FindPhoneService.ACTION_CANCEL_ALARM);
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        PendingIntent cancelAlarmIntent = PendingIntent.getService(this, 0, cancelAlarmOperation,
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                PendingIntent.FLAG_CANCEL_CURRENT);
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        // Use a spannable string for the notification title to resize it.
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        SpannableString title = new SpannableString(getString(R.string.app_name));
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        title.setSpan(new RelativeSizeSpan(0.85f), 0, title.length(), Spannable.SPAN_POINT_MARK);
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        notification = new Notification.Builder(this)
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                .setContentTitle(title)
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                .setContentText(getString(R.string.turn_alarm_on))
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                .setSmallIcon(R.drawable.ic_launcher)
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                .setVibrate(new long[] {0, 50})  // Vibrate to bring card to top of stream.
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                .setDeleteIntent(cancelAlarmIntent)
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                .extend(new Notification.WearableExtender()
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                        .addAction(alarmAction)
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                        .setContentAction(0)
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                        .setHintHideIcon(true))
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                .setLocalOnly(true)
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                .setPriority(Notification.PRIORITY_MAX);
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        ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
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                .notify(FIND_PHONE_NOTIFICATION_ID, notification.build());
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        finish();
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    }
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    /**
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     * Updates the text on the wearable notification. This is used so the notification reflects the
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     * current state of the alarm on the phone. For instance, if the alarm is turned on, the
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     * notification text indicates that the user can tap it to turn it off, and vice-versa.
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     *
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     * @param context
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     * @param notificationText The new text to display on the wearable notification.
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     */
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    public static void updateNotification(Context context, String notificationText) {
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        notification.setContentText(notificationText);
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        ((NotificationManager) context.getSystemService(NOTIFICATION_SERVICE))
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                .notify(FIND_PHONE_NOTIFICATION_ID, notification.build());
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    }
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}
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