桌面气泡通知（Desktop notifications ）

创建时间：2016-01-12 投稿人：浏览次数：1000

效果图：

守护进程中调用不生效，因为守护进程对图形和终端有一定的限制。可以打印信息到文件里，或者写syslog。

Libnotify

Libnotify 是Qt和GTK图形的一个扩展，已经广泛的应用于许多开源程序，如：Evolution和Pidgin。Libnotify会在安装libnotify时被安装。

使用libnotify必须安装 notification server.

Notification servers

内置

下面的桌面环境中使用自己实现的显示通知，你不能代替他们。他们的通知服务器在登录时自动启动通过的DBus接收来自应用程序的通知。

Cinnamon provides a notification server itself. Notifications are displayed at the top right corner of the screen.
Enlightenment provides a notification server through its Notification extension. Notification options are configurable.
GNOME provides a notification server itself. Notifications are displayed at the top of the screen.
KDE Plasma provides a notification server itself. Notifications are displayed at the bottom right corner of the screen.

独立

在其他的桌面环境中, notification server 需要通过 WM"s/DE"s "autostart" 选项启动. (它可以通过的DBus第一个i会话被推出，但是这不是很理想，因为它需要全局配置.)

You can choose one of the following implementations:

Avant Window Navigator — A notification-daemon applet is available for AWN.

https://github.com/p12tic/awn-extras || awn-extras-applets^AUR

Deepin Notifications — Notification server for Deepin.

https://github.com/linuxdeepin/deepin-notifications || deepin-notifications

Dunst — Minimalistic notification daemon for Linux designed to fit nicely into minimalistic windowmanagers like dwm.

http://www.knopwob.org/dunst/ || dunst

LXQt Notification Daemon — Notification server for LXQt.

https://github.com/lxde/lxqt-notificationd || lxqt-notificationd

Notification Daemon — The notification server used by GNOME Flashback.

https://github.com/GNOME/notification-daemon || notification-daemon

You can run it manually using /usr/lib/notification-daemon-1.0/notification-daemon.

MATE Notification Daemon — Notification server for MATE.

https://github.com/mate-desktop/mate-notification-daemon/ || GTK+ 2: mate-notification-daemon, GTK+ 3 (experimental): mate-notification-daemon-gtk3

Notify OSD — Notification server for Unity.

https://launchpad.net/notify-osd || notify-osd

statnot — Small, lightweight notification daemon that can output notifications to the root window"s title, stdout or FIFO pipes, making it integrate very well with tiling window managers.

https://github.com/halhen/statnot || statnot^AUR

twmn — Notification system for tiling window managers.

https://github.com/sboli/twmn || twmn-git^AUR

Xfce Notification Daemon — Notification server for Xfce.

http://goodies.xfce.org/projects/applications/xfce4-notifyd || xfce4-notifyd

Tip: To configure xfce4-notifyd, run the following command: xfce4-notifyd-config.

在程序中用法

在许多编程语言中，您可以通过 GObject-Introspection或bindings很容易地编写你自己的libnotify显示消息，也可以简单地使用bash。

下面是实现“Hello world”气泡消息的简单示例

Bash

Dependency: libnotify

hello_world.sh

#!/bin/bash
notify-send "Hello world!" "This is an example notification." --icon=dialog-information

Tip:

可用的内置图标概述e...http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html（也可以自定义图标）
要以root运行一个后台脚本发送桌面通知（更换用户与用户运行的X）：
```
# sudo -u X_user DISPLAY=:0 notify-send "Hello world!" "This is an example notification."
```

Boo

Dependency: notify-sharp-3 (boo)
Makedependency: boo
Build with: booc hello_world.boo
Run with: mono hello_world.exe (or booi hello_world.boo)

hello_world.boo

import Notifications from "notify-sharp"
Hello = Notification()
Hello.Summary  = "Hello world!"
Hello.Body     = "This is an example notification."
Hello.IconName = "dialog-information"
Hello.Show()

Dependency: libnotify
Build with: gcc -o hello_world `pkg-config --cflags --libs libnotify` hello_world.c

hello_world.c

#include <libnotify/notify.h>
void main () {
	notify_init ("Hello world!");
	NotifyNotification * Hello = notify_notification_new ("Hello world", "This is an example notification.", "dialog-information");
	notify_notification_show (Hello, NULL);
	g_object_unref(G_OBJECT(Hello));
	notify_uninit();
}

C++

Dependency: libnotifymm^AUR
Build with: g++ -o hello_world `pkg-config --cflags --libs libnotifymm-1.0` hello_world.cc

hello_world.cc

#include <libnotifymm.h>
int main(int argc, char *argv[]) {
	Notify::init("Hello world!");
	Notify::Notification Hello("Hello world", "This is an example notification.", "dialog-information");
        Hello.show();
}

Dependency: notify-sharp-3
Build with: mcs -pkg:notify-sharp-3.0 hello_world.cs
Run with: mono hello_world.exe

hello_world.cs

using Notifications;
public class HelloWorld {
	static void Main() {
		var Hello = new Notification();
		Hello.Summary  = "Hello world!";
		Hello.Body     = "This is an example notification.";
		Hello.IconName = "dialog-information";
		Hello.Show();
	}
}

Cobra

Dependency: notify-sharp-3
Makedependency: cobra^AUR^{[broken
link: archived in aur-mirror]}
Build with: cobra -c hello_world
Run with: mono hello_world.exe

hello_world.cs

@args -pkg:notify-sharp-3.0
use Notifications
class HelloWorld
    def main
        hello = Notification()
        hello.summary  = "Hello world!"
        hello.body     = "This is an example notification."
        hello.iconName = "dialog-information"
        hello.show

Dependency: notify-sharp-3
Makedependency: fsharp^AUR
Build with: fsharpc -r:notify-sharp.dll -I:/usr/lib/mono/notify-sharp-3.0/ -I:/usr/lib/mono/gtk-sharp-3.0/ hello_world.fs
Run with: mono hello_world.exe

hello_world.fs

open Notifications
let Hello = new Notification()
Hello.Summary  <- "Hello world!"
Hello.Body     <- "This is an example notification."
Hello.IconName <- "dialog-information"
Hello.Show()

Genie

Dependency: libnotify
Makedependency: vala
Build with: valac --pkg libnotify hello_world.gs

hello_world.gs

uses 
	Notify

init
	Notify.init ("Hello world")
	var Hello=new Notification ("Hello world!","This is an example notification.","dialog-information")
	Hello.show ()

Groovy

Dependencies: groovy, java-gnome^AUR
Build with: groovyc -cp /usr/share/java/gtk.jar HelloWorld.groovy && jar cfe HelloWorld.jar HelloWorld HelloWorld.class
Run with: java -cp /usr/share/groovy/embeddable/groovy-all.jar:/usr/share/java/gtk.jar:HelloWorld.jar HelloWorld (or groovy -cp /usr/share/java/gtk.jar HelloWorld.groovy)

HelloWorld.groovy

import org.gnome.gtk.*
import org.gnome.notify.*

Gtk.init()
Notify.init("Hello world")
def Hello = new Notification("Hello world!", "This is an example notification.", "dialog-information")
Hello.show()

Java

Dependency: java-gnome^AUR
Makedependency: java-environment
Build with: javac -cp /usr/share/java/gtk.jar HelloWorld.java && jar cfe HelloWorld.jar HelloWorld HelloWorld.class
Run with: java -cp /usr/share/java/gtk.jar:HelloWorld.jar HelloWorld

HelloWorld.java

import org.gnome.gtk.Gtk;
import org.gnome.notify.Notify;
import org.gnome.notify.Notification;

public class HelloWorld
{
    public static void main(String[] args) {
        Gtk.init(args);
        Notify.init("Hello world");
        Notification Hello = new Notification("Hello world!", "This is an example notification.", "dialog-information");
        Hello.show();
    }
}

JavaScript

Dependencies: libnotify, gjs (works also with seed)

hello_world.js

#!/usr/bin/gjs
const Notify = imports.gi.Notify;
Notify.init ("Hello world");
var Hello=new Notify.Notification ({summary: "Hello world!",
                                    body: "This is an example notification.",
                                    "icon-name": "dialog-information"});
Hello.show ();

Lua

Dependencies: libnotify, lua-lgi

hello_world.lua

#!/usr/bin/lua
lgi = require "lgi"
Notify = lgi.require("Notify")
Notify.init("Hello world")
Hello=Notify.Notification.new("Hello world","This is an example notification.","dialog-information")
Hello:show()

Perl

Dependencies: libnotify, perl-glib-object-introspection^AUR

hello_world.pl

#!/usr/bin/perl
use Glib::Object::Introspection;
Glib::Object::Introspection->setup (
	basename => "Notify",
	version => "0.7",
	package => "Notify");
Notify->init;
my $hello = Notify::Notification->new("Hello world!", "This is an example notification.", "dialog-information");
$hello->show;

Python

Dependencies: libnotify, python-gobject (or python2-gobject for Python 2)

hello_world.py

#!/usr/bin/python
from gi.repository import Notify
Notify.init("Hello world")
Hello=Notify.Notification.new("Hello world", "This is an example notification.", "dialog-information")
Hello.show()

Ruby

Dependencies: libnotify, ruby-gir_ffi^AUR^{[broken
link: archived in aur-mirror]}

hello_world.rb

#!/usr/bin/ruby
require "gir_ffi"
GirFFI.setup :Notify
Notify.init("Hello world")
Hello = Notify::Notification.new("Hello world!", "This is an example notification.", "dialog-information")
Hello.show

Rust

Dependencies: rust and cargo-bin^AUR (or just multirust^AUR)
notification crate: notify-rust

hello_world.rs

extern crate notify_rust;
use notify_rust::Notification;
fn main(){
    Notification::new()
        .summary("Hello world")
        .body("This is an example notification")
        .icon("dialog-information")
        .show();
}

Scala

Dependency: java-gnome^AUR (and scala)
Makedependency: scala
Build with: scalac -cp /usr/share/java/gtk.jar -d HelloWorld.jar HelloWorld.scala
Run with: java -cp /usr/share/java/gtk.jar:HelloWorld.jar HelloWorld (or scala -cp /usr/share/java/gtk.jar HelloWorld.scala)

HelloWorld.scala

import org.gnome.gtk._
import org.gnome.notify._

object HelloWorld {
  def main(args: Array[String]) {
    Gtk.init(args)
    Notify.init("Hello world")
    var Hello = new Notification("Hello world!", "This is an example notification.", "dialog-information")
    Hello.show()
  }
}

Vala

Dependency: libnotify
Makedependency: vala
Build with: valac --pkg libnotify hello_world.vala

hello_world.vala

using Notify;
public class HelloWorld {
	static void main () {
		Notify.init ("Hello world");
		var Hello = new Notification("Hello world!", "This is an example notification.", "dialog-information");
		Hello.show ();
	}
}

Visual Basic .NET

Dependency: notify-sharp-3
Makedependency: mono-basic
Build with: vbnc -r:/usr/lib/mono/notify-sharp-3.0/notify-sharp.dll hello_world.vb
Run with: mono hello_world.exe

hello_world.vb

Imports Notifications
Public Class Hello
	Public Shared Sub Main
		Dim Hello As New Notification
		Hello.Summary  = "Hello world!"
		Hello.Body     = "This is an example notification."
		Hello.IconName = "dialog-information"
		Hello.Show
	End Sub
End Class

另见

Libnotify 手册：https://developer.gnome.org/libnotify/
C 实例：http://milky.manishsinha.net/2009/03/29/working-with-libnotify/
Python 实例(french article)：https://hashbang.fr/tutoriel-notify.html
官网资料：https://wiki.archlinux.org/index.php/Desktop_notifications
气泡中图标资料：http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html

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桌面气泡通知 （Desktop notifications ）

Libnotify

Notification servers

内置

独立

在程序中用法

另见

桌面气泡通知（Desktop notifications ）