| package com.example.android.activenotifications; |
| /* |
| * Copyright 2015 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. |
| */ |
| |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.service.notification.StatusBarNotification; |
| import android.support.v4.app.Fragment; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.TextView; |
| |
| import com.example.android.common.logger.Log; |
| |
| /** |
| * A fragment that enables display of notifications. |
| */ |
| public class ActiveNotificationFragment extends Fragment { |
| |
| private static final String TAG = "ActiveNotificationFragment"; |
| |
| private NotificationManager mNotificationManager; |
| private TextView mNumberOfNotifications; |
| |
| // Every notification needs a unique ID otherwise the previous one would be overwritten. |
| private int mNotificationId = 0; |
| private PendingIntent mDeletePendingIntent; |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| return inflater.inflate(R.layout.fragment_notification_builder, container, false); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| updateNumberOfNotifications(); |
| } |
| |
| @Override |
| public void onViewCreated(View view, Bundle savedInstanceState) { |
| super.onViewCreated(view, savedInstanceState); |
| mNotificationManager = (NotificationManager) getActivity().getSystemService( |
| Context.NOTIFICATION_SERVICE); |
| mNumberOfNotifications = (TextView) view.findViewById(R.id.number_of_notifications); |
| |
| // Supply actions to the button that is displayed on screen. |
| View.OnClickListener onClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| switch (v.getId()) { |
| case R.id.add_notification: { |
| addNotificationAndReadNumber(); |
| break; |
| } |
| } |
| } |
| }; |
| view.findViewById(R.id.add_notification).setOnClickListener(onClickListener); |
| |
| // [BEGIN create_pending_intent_for_deletion] |
| // Create a PendingIntent to be fired upon deletion of a Notification. |
| Intent deleteIntent = new Intent(ActiveNotificationActivity.ACTION_NOTIFICATION_DELETE); |
| mDeletePendingIntent = PendingIntent.getBroadcast(getActivity(), |
| 2323 /* requestCode */, deleteIntent, 0); |
| // [END create_pending_intent_for_deletion] |
| } |
| |
| /** |
| * Add a new {@link Notification} with sample data and send it to the system. |
| * Then read the current number of displayed notifications for this application. |
| */ |
| private void addNotificationAndReadNumber() { |
| // [BEGIN create_notification] |
| // Create a Notification and notify the system. |
| final Notification.Builder builder = new Notification.Builder(getActivity()) |
| .setSmallIcon(R.mipmap.ic_notification) |
| .setContentTitle(getString(R.string.app_name)) |
| .setContentText(getString(R.string.sample_notification_content)) |
| .setAutoCancel(true) |
| .setDeleteIntent(mDeletePendingIntent); |
| |
| final Notification notification = builder.build(); |
| mNotificationManager.notify(++mNotificationId, notification); |
| // [END create_notification] |
| Log.i(TAG, "Add a notification"); |
| updateNumberOfNotifications(); |
| } |
| |
| /** |
| * Request the current number of notifications from the {@link NotificationManager} and |
| * display them to the user. |
| */ |
| protected void updateNumberOfNotifications() { |
| // [BEGIN get_active_notifications] |
| // Query the currently displayed notifications. |
| final StatusBarNotification[] activeNotifications = mNotificationManager |
| .getActiveNotifications(); |
| // [END get_active_notifications] |
| final int numberOfNotifications = activeNotifications.length; |
| mNumberOfNotifications.setText(getString(R.string.active_notifications, |
| numberOfNotifications)); |
| Log.i(TAG, getString(R.string.active_notifications, numberOfNotifications)); |
| } |
| } |