How to start application without going back to LXDE? - raspberry-pi

I am running chromium browser at start up on raspberry, my question is after closing my chromium browser am trying to run another application without going back to desktop(LXDE).. am new user.. please help me out

I presume when you close chromium you go back to the shell.
Did you try to type the name of the program you want to launch?
Like the same way you launched chromium.
Try to type nano text_file or omxplayer video/audio_file

Related

Why terminal becomes unresponsive after Parcel build?

I am following Parcel's "Building a web app with Parcel" to learn how to use it. The problem arises after I type in npx parcel src/index.html. The build runs fine and I can see the development server results just fine. The terminal becomes unresponsive afterwards. I can't type, quit, or anything. The only workaround is killing the terminal and restarting...which is very annoying. I've looked for answers, I've updated Node to the latest version, but to no avail. This doesn't happen when I use Webpack or any other time. Here is a screen shot just in case that helps. Could someone please help this unworthy noob out? Screen shot of terminal and VSCode
When you just run npx parcel, it starts a development server that will continue to run until you exit. This development server will watch for changes that you make as you develop and will reload your project, so you don't need to restart/rebuild every time you make changes.
The reason you can't type anything into the terminal (or, at least, that the terminal doesn't respond when you do) is that the development server is still running in that terminal. You have to exit the development server before the terminal prompt will re-appear and you can use it as normal.
To exit any program running in a terminal, you can type Control+C (hold down the Control key and hit the "c" key). This works for any terminal program, not just parcel. This will exit the development server program and you'll get your terminal prompt back.
There are other things you can do with programs (or "jobs") in the terminal window. You can read more about them here and here.
But you should use the development server to your advantage. Keep it running while you work. If you need to use the terminal while it's running, just open up another terminal window.
When you finally want to build your app/site, run parcel build instead.
You can read more about all of this here: https://parceljs.org/getting-started/webapp/

How to stop VS Code from opening browser

I'm running a local server on localhost through VS Code using nodemon on my mac. So everytime I save, the server restarts and updates. My problem is that VS Code always switches window to my browser when the server restarts, so my flow gets interrupted. There must be a way to prohibit VS Code from opening my browser, or at least not doing it at every restart of server?
Look into script your nodemon runs when it's watcher detects change and locate call that starts the browser there: presumably you have one in your "start server" script.
It would probably involve your local server address and call like require('child_process').exec(); see How to use nodejs to open default browser and navigate to a specific URL.
I kind of solved it by adding "BROWSER=none" so my start script (which otherwise only said "nodemon server.js"). But then the browser won't refresh automatically and I'm still curious what's causing it.

phaser on vscode launch

I've created a simple game using Phaser on vscode.
I read that i need to run it locally in order to run it on chrome and i can't manage to do so using vscode's F5.
when im on "index.html" and pressing F5 it pops out an alert box that says "cannot find progrem to debug".
pressing F5 while im on any other file causes a error in the debugger "window is not defined"(when im on phanser.js)/"Phaser is not defined"(when im on any other file)
how can i start this program correctlly ? sorry for the basic question .
http-server works just fine. But if you want to debug the game easily. You might want to follow the steps in this post: https://divillysausages.com/2015/06/09/using-phaser-with-visual-studio-code/
It is an instruction for setting up Typescript phaser development in vscode, but the steps that teach you how to set up node server also applies to a javascript usage case. If you want to make it easy to debug(pause code executing while game running, etc.) Try to set it up in that way.
Had to install http-server from npm and run it in terminal.
tried it before, but accidently installed it not globaly.
now it works. thanks!

Raspberry Pi 2 Raspbian automatic startup for browser in full screen for Kiosk

I am trying to make my raspberry pi open a set of page's automatically when i start it up in the morning but unfortunately i can't get it to work
i already have the links in chromium so if chromium can start automatically and get to the full screen mode it is solved
so the only thing that needs to happen is to automatically start up chromium
i tried to use Kiosk for it but it gave me a lot of trouble
this is the code i have right now
#chromium-browser --kiosk
If u want to start your browser in fullscreen mode at boot use the following line in terminal to edit the startup file. (if you're already in root then u dont have to use sudo)
sudo nano /home/pi/.config/lxsession/LXDE-pi/autostart
Then add the following to the startup file.
For using chromium
#chromium-browser --start-fullscreen
It is basically the same as pressing f11 but then automatically.
If u want to add an URL to this u can do that in-between the command and the argument like this.
#chromium-browser http://localhost --start-fullscreen
This will launch the browser in fullscreen in the requested URL.

When launching google apps from command line , don't want to open google chrome browser

When I launch google apps[which is developed by myself] from command line, for example:
chrome.exe --load-and-launch-app="C:\Users\KyawKhaing\Desktop\chrome\Chrome App\Example2"
After I run this, I see Google Chrome Browser open first follow by my google chrome apps launch. I don't want to open google chrome browser when I launch a chrome app. Any one know the solution. Is it possible?
Use the --silent-launch argument.
chrome.exe --silent-launch --load-and-launch-app="C:\Users\KyawKhaing\Desktop\chrome\Chrome App\Example2"
As I was running automation scripts in java, i did notice that chrome did not open using command prompt.
Runtime.getRuntime().exec("C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe \"http:\\www.google.com\"");
From Windows 7, I fixed the problem with the following steps:
Go to the folder C:\Program Files (x86)\Google\Chrome\Application
Right-click on chrome.exe
Select Properties
Select the Compatibility TAB
Click on the "Change settings for all users" button
Make sure to put a Check Mark on "Run this program in compatibility mode for:" and
Select "Windows 7" from the drop down list.
Enjoy!
I don't think you can do it currently. It is a reasonable feature request! You can make feature requests at http://crbug.com/new
There is a bug already logged for this, see http://crbug.com/175381.
We are working on making app background pages keep the browser process alive; once this is done we can fix this bug. The problem currently is due to the way the process is kept alive - if we don't show the browser window the process exits between loading the app and the app opening a window.
I don't think you can do that. The browser is the environment of the app. Its like trying to run a windows app, without running windows. The app depends on the browser. You can't open the app without opening the browser first. Sorry. Hope this helps.