Appindicator was first introduced in Ubuntu karmic as a replacement for the Gnome panel applet. It is a small applet to display information from various applications consistently in the panel. It can also be used as a access point to access (and control) the application without having to open the application. if you are running Ubuntu Lucid or Maverick, you should see the messaging menu (the applet that contains Empathy, Evolution and Gwibber icons), which is a good example of an appindicator.
As the development of appindicator getting more mature, more and more apps started to show up with support for the indicator-applets. Since most of these apps are not found in the Ubuntu repository, we have compiled a list of useful appindicators that you can install and use. Most of them are really useful, but you are not obliged to install all of them, just grab the one you need will do.
1. Indicator-DesktopNova
DesktopNova is a Gnome and XFCE based wallpaper changer. Indicator-desktopnova is an apppindicator developed by another developer, Michael Otto to allow you to change wallpaper directly from the system tray. If you are looking for a simple wallpaper changer, this will be useful.
To install:
sudo add-apt-repository ppa:michael-astrapi/ppa sudo apt-get update sudo apt-get install desktopnova indicator-desktopnova
2. Indicator-VirtualBox
Developed by the same developer – Michael Otto, indicator-virtualbox allows you to start your VM without having to open the VirtualBox VM Manager.
To install:
sudo add-apt-repository ppa:michael-astrapi/ppa sudo apt-get update sudo apt-get install indicator-virtualbox
3. Indicator-Dropbox
If you have upgraded your Dropbox to version 1.0, you should see a nice Dropbox appindicator running in the system tray.
4. Indicator-cpufreq
Indicator-cpufreq allows you to change your CPU frequency easily. This is useful if you are using a netbook and need to preserve battery life, you can quickly set your CPU to powersave mode.
To install (for Ubuntu 10.10 onward):
sudo add-apt-repository ppa:artfwo/ppa sudo apt-get update sudo apt-get install indicator-cpufreq
5. Pastie
Pastie is a simple clipboard manager for Linux that comes with its own appindicator support.
To install Pastie:
sudo add-apt-repository ppa:hel-sheep/pastie sudo apt-get update sudo apt-get install pastie
6. Indicator-workspace
As its name implies, indicator-workspace allows you to easily switch to another workspace from the system tray. This is useful if you are an active workspace user.
sudo add-apt-repository ppa:geod/ppa-geod sudo apt-get update sudo apt-get install indicator-workspaces
7. Indicator-keylock
Ever wonder where is the NUM lock, Screen lock and CAPS lock button in your keyboard? Most keyboards found in laptop and netbook do not come with dedicated NUM and Screen lock buttons. With this appindicator, you can turn on the required keylock without going to the keyboard.
sudo add-apt-repository ppa:tsbarnes/indicator-keylock sudo apt-get update sudo apt-get install indicator-keylock
8. UbuntuOne Indicator
The UbuntuOne indicator-applet allows you to monitor your UbuntuOne sync status as well as access to the recently published files.
sudo add-apt-repository ppa:rye/ubuntuone-extras sudo apt-get update sudo apt-get install ubuntuone-indicator
9. Lookit
Lookit is a quickgrab screen capture tool that can be used to capture an area or the whole screen. After the screen capture, you can get it to upload to a FTP, SSH server or Imgur.
To install:
sudo add-apt-repository ppa:lookit/ppa sudo apt-get update sudo apt-get install lookit
After installation, press “Alt + F2” and type lookit to activate the appindicator.
10. Touchpad Indicator
Ever feel frustrated that the touchpad is always hindering you while you are typing? Well, you can now temporarily deactivate it with the touchpad indicator.
TouchPad indicator is currently supported in Ubuntu Maverick only. To install:
sudo add-apt-repository ppa:atareao/atareao sudo apt-get update sudo apt-get install touchpad-indicator
11. My Weather Indicator
Developed by the same developer as touchpad indicator, my weather indicator allows you to view your weather condition quickly and even notify you when there is a weather condition change.
My Weather Indicator is currently supported in Ubuntu Maverick only. To install:
sudo add-apt-repository ppa:atareao/atareao sudo apt-get update sudo apt-get install my-weather-indicator
12. Google Reader Indicator
Yet another appindicator by @atareao, Google Reader Indicator shows a notification when there are new items in your Google Reader and it displays the article title with a link to the source.
Google Reader Indicator is currently supported in Ubuntu Maverick only. To install:
sudo add-apt-repository ppa:atareao/atareao sudo apt-get update sudo apt-get install google-reader-indicator
13. Various music players appindicators
The default installation of Ubuntu Maverick comes with support for Rhythmbox integration into the sound indicator. Some other media players also comes with their own appindicators.
Banshee: Install the banshee-community-extensions and activate the Banshee appindicator from the plugins list.
Exaile: Download the exaile’s sound appindicator plugin file from here. Extract it and place it in the directory “/HOME/.local/share/exaile/plugins”. Open your Exaile. Go to “Edit -> Preferences -> Plugins”. Activate the Sound Menu Indicator plugin.
Clementine: If you are running the latest version, it will automatically integrate itself to the sound indicator.
XNoise: Install xnoise-plugins-core and activate the sound menu plugin from the Plugins list.
The above list is not conclusive and there are many more appindicators out there that we didn’t discover. If you know of any appindicator not in the above list, feel free to let us know.
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