MainActivity.java

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/*
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 * Copyright (C) 2013 The Android Open Source Project
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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.customnotifications;
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import android.app.Activity;
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import android.app.Notification;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.Intent;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v4.app.NotificationCompat;
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import android.view.View;
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import android.widget.RemoteViews;
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import java.text.DateFormat;
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import java.util.Date;
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public class MainActivity extends Activity {
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    /**
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     * This sample demonstrates notifications with custom content views.
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     *
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     * <p>On API level 16 and above a big content view is also defined that is used for the
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     * 'expanded' notification. The notification is created by the NotificationCompat.Builder.
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     * The expanded content view is set directly on the {@link android.app.Notification} once it has been build.
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     * (See {@link android.app.Notification#bigContentView}.) </p>
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     *
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     * <p>The content views are inflated as {@link android.widget.RemoteViews} directly from their XML layout
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     * definitions using {@link android.widget.RemoteViews#RemoteViews(String, int)}.</p>
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     */
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    private void createNotification() {
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        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
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        //Create Intent to launch this Activity again if the notification is clicked.
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        Intent i = new Intent(this, MainActivity.class);
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        i.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
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        PendingIntent intent = PendingIntent.getActivity(this, 0, i,
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                PendingIntent.FLAG_UPDATE_CURRENT);
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        builder.setContentIntent(intent);
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        // Sets the ticker text
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        builder.setTicker(getResources().getString(R.string.custom_notification));
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        // Sets the small icon for the ticker
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        builder.setSmallIcon(R.drawable.ic_stat_custom);
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        // Cancel the notification when clicked
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        builder.setAutoCancel(true);
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        // Build the notification
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        Notification notification = builder.build();
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        // Inflate the notification layout as RemoteViews
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        RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.notification);
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        // Set text on a TextView in the RemoteViews programmatically.
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        final String time = DateFormat.getTimeInstance().format(new Date()).toString();
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        final String text = getResources().getString(R.string.collapsed, time);
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        contentView.setTextViewText(R.id.textView, text);
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        /* Workaround: Need to set the content view here directly on the notification.
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         * NotificationCompatBuilder contains a bug that prevents this from working on platform
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         * versions HoneyComb.
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         * See https://code.google.com/p/android/issues/detail?id=30495
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         */
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        notification.contentView = contentView;
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        // Add a big content view to the notification if supported.
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        // Support for expanded notifications was added in API level 16.
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        // (The normal contentView is shown when the notification is collapsed, when expanded the
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        // big content view set here is displayed.)
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        if (Build.VERSION.SDK_INT >= 16) {
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            // Inflate and set the layout for the expanded notification view
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            RemoteViews expandedView =
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                    new RemoteViews(getPackageName(), R.layout.notification_expanded);
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            notification.bigContentView = expandedView;
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        }
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        // START_INCLUDE(notify)
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        // Use the NotificationManager to show the notification
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        NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
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        nm.notify(0, notification);
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    }
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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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        setContentView(R.layout.sample_main);
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    }
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    /**
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     * Create and show a notification with a custom layout.
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     * This callback is defined through the 'onClick' attribute of the
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     * 'Show Notification' button in the XML layout.
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     *
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     * @param v
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     */
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    public void showNotificationClicked(View v) {
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        createNotification();
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    }
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}