Android example source code file (IncomingMessage.java)

This example Android source code file (IncomingMessage.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activity, android, app, application, button, charsequence, content, incomingmessage, joe, layoutinflater, notificationmanager, override, pendingintent, string, textview, toast, ui, view, widget

The IncomingMessage.java Android example source code

/*
 * Copyright (C) 2007 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.example.android.apis.app;

import com.example.android.apis.R;

import android.app.Activity;
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.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class IncomingMessage extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.incoming_message);

        Button button = (Button) findViewById(R.id.notify);
        button.setOnClickListener(new Button.OnClickListener() {
                public void onClick(View v) {
                    showToast();
                    showNotification();
                }
            });
    }

    /**
     * The toast pops up a quick message to the user showing what could be
     * the text of an incoming message.  It uses a custom view to do so.
     */
    protected void showToast() {
        // create the view
        View view = inflateView(R.layout.incoming_message_panel);

        // set the text in the view
        TextView tv = (TextView)view.findViewById(R.id.message);
        tv.setText("khtx. meet u for dinner. cul8r");

        // show the toast
        Toast toast = new Toast(this);
        toast.setView(view);
        toast.setDuration(Toast.LENGTH_LONG);
        toast.show();
    }

    private View inflateView(int resource) {
        LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        return vi.inflate(resource, null);
    }

    /**
     * The notification is the icon and associated expanded entry in the
     * status bar.
     */
    protected void showNotification() {
        // look up the notification manager service
        NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);

        // The details of our fake message
        CharSequence from = "Joe";
        CharSequence message = "kthx. meet u for dinner. cul8r";

        // The PendingIntent to launch our activity if the user selects this notification
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, IncomingMessageView.class), 0);

        // The ticker text, this uses a formatted string so our message could be localized
        String tickerText = getString(R.string.imcoming_message_ticker_text, message);

        // construct the Notification object.
        Notification notif = new Notification(R.drawable.stat_sample, tickerText,
                System.currentTimeMillis());

        // Set the info for the views that show in the notification panel.
        notif.setLatestEventInfo(this, from, message, contentIntent);

        // after a 100ms delay, vibrate for 250ms, pause for 100 ms and
        // then vibrate for 500ms.
        notif.vibrate = new long[] { 100, 250, 100, 500};

        // Note that we use R.layout.incoming_message_panel as the ID for
        // the notification.  It could be any integer you want, but we use
        // the convention of using a resource id for a string related to
        // the notification.  It will always be a unique number within your
        // application.
        nm.notify(R.string.imcoming_message_ticker_text, notif);
    }
}