Droid@Screen now has its own page. Please, click the link below or the link at the top navigation bar. The latest version of Droid@Screen is now 0.4 (30 Oct 2011). You can find the download link at the Droid@Screen page.
I have recently start to learn programming Android. It’s Java, but the environment is very, very different from ordinary server and/or desktop Java programming. Mostly because the device is limited in all sorts of resources. Therefore, the API puts some burden on the lone hacker.
Anyway, I needed a simple tool to project the screen of my HTC Hero device on my PC, for showing it to an audience. I found one such application, but wasn’t really satisfied with its functionality and because I didn’t want to step on someones toes by messing around and changing way to much of the code I went for my own solution. My primary objective was to ensure it was operational before next Sunday, when I will need it.
Here is how it looks like
It is a simple Java Swing application, delivered as an all-inclusive executable JAR file. Therefore, one can launch it simply by double-clicking on the JAR file, or run the following command
java -jar droidAtScreen-0.3.jar
The Droid@Screen JAR file can be found here (pls understand it is alpha software)
droidAtScreen-03.jar(Not valid any longer. Please go to the new Droid@Screen page.)
Source Code
The source code is open source and I have put all of it to my git repo at Codaset GitHub.
The project is built using Maven. Before you can compile, you need to install two Android JAR files to your Maven repo. It is the android.jar and the ddmlib.jar files. Use the mvn install-file command. The easiest to get the mvn syntax right is to try compile it and wait for Maven to point out how to run the install-file command.
Screen-Shots
Here are some more screen-shots.
Landscape mode
Scaled image
Multiple windows
Save screenshots
Setting the path to the ADB executable
The application relies upon the Android Debug Bridge (ADB) application, which will be started unless it’s already running. So the very first thing Droid@Screen does is to prompt for that path.
—-
Thanks so much for this app, it helped me a lot
I can’t seem to get it to recognize my Galaxy S2.. Thoughts
Wonderful. Simple. Great.
Thanks a lot
Bye
Depa
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Hi
It doesn’t pick up my A500 – Acer Tablet
I guess it’s not compatible with Android 3, which is tablet only.
It works with my Galaxy Tab 10.1 P7510… It got Android 3.2
Thanks
[url=http://androidcontrol.blogspot.com/]Android Control[/url]
Finally! A program that lets you screen capture/record that doesn’t require a root!
You have no idea how much I’ve searched for something like this…
Though, I have a bit of trouble with it. It loads just fine overall, but the display on my computer looks very strange and unclear. It has a weird lag too with the FPS (no matter what I set it to, it stays the same). Here’s what my screen looks like: http://img.photobucket.com/albums/v227/lostromanovprincess/DaS-screen.jpg
If you have the time, I’ll appreciate any bit of advice that will help me. Thanks!
HTC Evo3D
Android 2.3.4
Windows XP
That’s a strange look. No idea what the problem is.
Do you have several HTC USB drivers installed?
Perhaps it has something to do with the 3D look in Sense?
Sorry, of not being much helpful.
that is exactly how mine looks
((( I though I was doing something wrong…
I have a Mytouch 4G Slide running Android 2.3.4 and my computer is running windows vista!
according to my little knowledge
its real output of screen without glass (3d viewing glass)
when we see it through glass it looks natural , so it is looking like this.
I used the 0.3 version and it kinda looks better but its a little slow
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dude,
are u serious !?
Thanks a lot for this app. I added a post here to show how to record video using you app :
http://forums.utest.com/viewtopic.php?f=17&t=2439
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This is the app ive been looking for! Kudos on this! However, i seem to be encountering an orientation problem, my display is UPSIDE DOWN. Im using a ZTE Blade with Froyo 2.2.2. However, when i use my Samsung Galaxy S2, orientation is correct. Hope you can help me out. Many thanks
The Sony Ericsson Xperia X10 mini pro has a special way of drawing the screen. The screen is 240 x 320. At the end of every line of 240 pixels it adds 16 extra black pixels.
Because of the extra 16 black pixels at the end of every 240 at the X10 mini/mini pro screen (240×320), streaming with Droid@Screen shows a disortet image.
Would it be possible with an extra feature to “ignore” a user-specific amount of pixels at any angle (before/after every line or a a specific number of lines at top/buttom)?
Besides that, great program
hmm, interesting. although no promise when to add this feature.
Thanks.
Here is a grab of the disortion: http://www.emperor.dk/DroidAtScreen.jpg
It’s clear, that for every line, the image i pushed.
it doesn’t work. it detects the device, but shows a blank screen. my usb driver is correct, and so is ddms.
windows vista / samsung galaxy ace.
@joel
The Samsung Ace has a problem, you will get a blank screen. I have the same issue with all the Ace devices, so it isn’t problem with your device specifically.
For your device try the latest version of Android Screen Monitor.
@jens
Any chance of some free time coming up this year for the screen control bit, I do check back here occasionally to see if there is any updates
Hi,
I use Win 7 64bit, lastest sdk installed, Samsung Galaxy 551 connected with orginal samsung cable. I can see the phone name but can’t see the screen just blank appears, but I can make screen shots with DDMS.
Not sure what the problem is. Sorry.
Browse the comments below, to see if any might shed some light over your problem.
After some initial effort, it worked, and worked really well. Profound thanks for sharing this with the community. I plan on heavily using it for a variety of projects.
The only problem I’ve encountered: can’t open any files in any app from either Files or Gallery, since my Droid X always says either “memory card is missing” or “SD card unavailable/not mounted”. Obviously, the card is there and if I disconnect the device from host PC then I can instantly open needed files, then plug USB cable back in and continue working. I thought this was already discussed here and a workaround was suggested, but couldn’t find it. Any help? Thanks!
Ensure you connect the phone using the “Charging only” option. In that case, the SD card will still be available.
Sorry for my ignorance but how do I enable that option? I have USB debugging enabled under Settings>Applications>Development (so phone is not mounted as USB storage and ADB is working); what else am I missing?
When you connect via USB, your mobile will ask you for a set of options, like “Charging only”, “Use as ESB disk”, etc. It will also ask you if you want to choose the selection as the default, which is what happened to your mobile – as I understand it.
To fix the problem: Drag down the notification area, choose the USB notification and change your option to “Charging only”.
It worked precisely as you’ve explained. I was confused by mobile device displaying the “Charging only” message when connecting via USB cable when in fact it was connected as mass storage device. Wasn’t smart enough to pull down notifications and check out what’s the factual condition. Thanks for all your support, now it works just fine. Great utility! Google and/or OEMs should distribute and promote it extensively
Would it possible to incorporate Monkeyrunner inputs to implement a screen control solution ?
http://piglings.blogspot.com/2011/08/android-screen-control-without-root.html
Thanks,
Regards,
Vikram.
Hey Jens,
P.S.
The input I have implemented is the default and very basic, I lack the skills to make the changes in Java. Hoping you could have a look through and help. The part not available in the drag action.
Cheers,
Vikram.
This was indeed an interesting idea.
However, I cannot make any promises for the near future, because of other duties.
@jens
Sure I understand. Do let me know if find the time to pick this up.
Cheers,
Vikram.
Thanks!!!!!!
Works great, need to check if it will just work with adb and not require the entire SDK. Would it be possible to inject events such as mouse and keyboard actions onto the device. This would be fantastic.
Cheers,
Vikram.
>>if it will just work with adb and not require the entire SDK
You need the SDK and run the “update” to get adb in the first place. When you got it, it might work if you just drop the exe file somewhere else. However, I haven’t tried that.
>>Would it be possible to inject events such as mouse and keyboard actions onto the device.
Sorry, not to my knowledge.
i have tried to run it it pulls it up but it wont show the screen and yes i have installed the right drivers when i pull down the top where it shows the messages and all that will show up and the time and all but when i try and go to the home page all i see is white so what can i do to see the screen? i have a samsung galaxy prevail ????
Hard to say… Please, double check the following:
Thanks for this!
Improvement suggestion:
An option to keep all frames in memory and then write them all out as images at the press of a button (or to keep writing the images constantly to free up memory if the computer can make it without lagging the movie (probably won’t be an issue)). Will simplify making a movie with this program a lot.
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Hey,
first of all I’d like to thank you for such an useful tool!
Now a small question:
).
Is there any way to increase the framerate? I am changing it from 15 to 30 fps but it is flickering all the time (i have some blurred background dialogs used, and some animations which looks quite bad on a big screen
TBH I can’t see any difference between 15 and 30fps… any clue why?
Really useful application – the one build in to the Android SDK isn’t able to stream the screen live, and this was really something I need to present an app
Thanks for great application!
Great thanks!
Works on the Samsung Google Nexus S.
Hi,
I have Samsung Mini 5570 I can see Samsung logo during the boot but image(Samsun logo) freezes later on, PIN entrance screen does not show up.
Hi,
I found this online, wanted to try and view angry birds on a large screen. haha. anw. it looks cool, and i tried it out, and this is the error i got :
Failed to show device.java.lang.RuntimeException : Failed to capture device screenshot : java.lang.UnsupportedOperationException :RawImage.get ARGB(int) only works in 16 and 32 bit mode.
It managed to detect my device, and my screen resolution is 32bit colour, changed to 16bit and it was the same result. :/
im sorry im lousy and i cant find the problem. ): any help?
What device do you have?
Do you have the proper USB driver for the device already installed, that means you can sync/connect your mobile to the pc?
The error message complains about the device, not your screen. Can you see the device, using just your default home view(ie not angry birds)?
I like this proggie… alot.
Why have you stopped developing it?
I haven’t had the time. I’m in the end-phase of completing an Android app, so perhaps I might squeeze in some time for improvements.
What would you like to see?
Please disregard my last post. Working fine now. Not sure why it started working.
Only getting a couple FPS though. But, alas, great app! can’t wait until you polish it and allow for some things like screenshots and such.
Bookmarked this page
OK.
Not sure why it is not working, but I am having problems.
Installed the ADB (installed in a place with no spaces), ran your .jar app, input the path (C:\Android\android-sdk\platform-tools\adb), but no devices show up.
I am able to see my device by using the adb devices command.
Just doesn’t show up in Droid@Screen.
Oh, I also updated all things in the SDK as well.
Any help or ideas would be appreciated.
Do you have correct USB driver installed, i.e. you can sync your phone?
Check that you can connect to it using the ddms program and take a screenshot. Basically, I have built the device oriented code from the sources of that part of ddms.
Gah, so frustrated. Seems like the perfect app for me. I have to demo the apps I design in front of customers and forums. I had been using the basic ddms.bat method, which requires a refresh for every screen change (not horrible for me as my apps are relatively static in nature), but I would *love* to have this instead (natch).
MyTouch G4 on T-Mobile
Windows XP
As I said, I can currently run the standard screen capture, so I know the communication is there….but whenever I launch Droid@Screen, no device appears in the list. It *feels* like Droid@Screen isn’t actually launching ADB even though I am giving it the path – C:\Program Files\Android\android-sdk\platform-tools. I just never see the command window pop up the way I see it when I run ddms.bat. Should that happen?
Any ideas? I would love to use your stuff and promote it whenever I can!
Not a developer (anymore) just a designer, so very good chance I am doing something Rather Stupid(TM).
Thanks!
It might be the space in “Program Files”. Java used to have problems when dealing with spaces in path. (1) try use the DOS naming or (2) reinstall Android SDK to a path without spaces.
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I cannot use it.
I use Ubuntu 10.10, lastest sdk installed, Samsung Galaxy Gio connected with orginal samsung cable. I can see the phone name but can’t see the screen 
just blank appears…
Verify first you have the correct USB driver for your Samsung mobile installed, i.e. you can synch/connect to your phone. Next, verify using DDMS that you indeed can connect to your mobile and, for example, view the log stream.
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Very cool!!!
Thnx!!
Okay…so it is working again….i set the phone to share the pc’s Internet connection and then switched back to charge only and that seemed to have done the trick……..
By the way……Great App!!!!
Thanks for the appreciation.
Having an issue all of a sudden…Droid@Screen worked perfectly and then all of a sudden i get the rror message that the ADB Claims the Device is Offline…..no matter what i do now i get this message. Any help here would be greatly appreciated – Win 7 64 Bit….original Droid Pro USB cable being used
Looks like a problem related to ADB. I do have similar problem when developing and testing in the emulator. After a day or so, I need to restart, because ADB lost it.
Please, unplug the device and manually restart ADB.
Open a command prompt at the $ANDROID_SDK_HOME/platform-tools/ directory and execute
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Thanks for the app — very cool. One issue I’m having that I can’t seem to resolve, though, is I’m seeing adb.exe crashes reported by the tool quite frequently. I tried readjusting the frames per second setting but it didn’t seem to help. What’s the trick so that the apps I demo to crash out due to adb.exe failures?
Thanks in advance!
This works really well BUT even with the latest HTC drivers installed and the absolutely most-recent SDK, I seem to be limited to about 1-2fps at most…
HTC Desire (so high-density display) could be part of the issue I guess???
This is Awesome. It works great. Thanks for creating this application.
HELP how do I instal this .jar I think I have fallowed all the steps. Yet all I get is file to unzip, I have looked threw the files and found no instal or run. I watched the video on youtube, and video in the .jar and am still lost! what am I doing wrong? I have instaled Java, and ANDROID SDK.
java -jar droid@screen.jarat a command prompt (command window)Lovely. Works nicely on Mac os10 and Windows 7 with their respective ADB executables.
Sorry please ignore my previous comment.. something went wrong suddenly with my installation of droid@screen. I re-downloaded it, re-installed it and it works fine now. Thanks!
OK. I’m glad it sorted out well.
Sorry I’m not an android developer but am a consumer trainer for android devices, have been thrilled with using Droid@Screen for demos, however the program doesn’t seem to work on devices running Froyo.
Can I check if this is a known limitation?
hi jens i have kind off same problem that frogola, i already put the full path of my adb file but it keeps saying me
Exception in thread “main” java.lang.RuntimeException: ADB executable ‘~/Documents/android-sdk-linux_86/platform-tools’ is not a file
i guess im doing something wrong 
i try platform-tools, platform-tools/, platform-tools/adb
First, ensure you have run the SDK update, because it downloads and installs the adb executable. Just launch $ANDROID_HOME/tools/android from a comman line and choose “Update All…” from the “Installed packages” pane.
Second, the path to the ADB exe will then be $ANDROID_HOME/platform-tools/adb
In your case it would be /home/yourUserName/Documents/android-sdk-linux_86/platform-tools/adb
Success! Thanks much, have fun developing today! Sehr useful dude!
Thanks for the quick reply Jens. That workaround worked; now I just have a ‘request rejected: insufficient permissions for device’ exception to deal with. Progress…
pls, let me know of your progress with the Ubuntu USB permission stuff. seems to be a good idea to post it here as a reply for other Ubuntu fans.
Ubuntu 10.04, can’t set adb path because config window exceeds screen size and data entry controls are off the visible screen. And no resizing controls in config dialog. Is there a way to pass adb path via config file or as arg to invoking .jar? Frustrating.
Sorry, for that. I just checked within Ubuntu that the JOptionPane dialog expands wildly in vertical mode.
The short-time solution, for you, is to edit the preference file. Just tried it myself.
First, save some preference such as ‘frame rate’, which will ensure the java prefs system will create the file..
Next, locate the file ~/.java/.userPrefs/com/ribomation/droidAtScreen/prefs.xml
Then, add an entry for the preference ‘adb-executable-path’ with the value of the full path to your ADB exe on Ubuntu.
Finally, start Droid@Screen.
The long-term solution, for me, is to investigate and fix that Ubuntu related bug. However, not today… I’m in the middle of some intensive Android development right now.
Hello,Jens and everybody.I’m find over net,Droid@Screen is the only.Thanks.
Question:
I run the emulator at first(because I don’t have a physical device),and run the .jar file,it’s not work.I can’t see the emulator in the JComboBox devices.does not Droid@Screen support emulator ?Can you help me?
It’s only intended to view real phones, i.e., not an emulator.
Congratulations! This app is fantastic! Why don’t you provide packaged executables in exe and app format? It would also be very very nice to add option to save a video
Hi Dude,
its a great tool.
But when i loaded into eclipse and tried to run..i am not getting the logs.
How can i configure the Log4J properties file to get the logs into eclipse?
hey man , Thanks Alot !!
got it! when downloaded on a mac the .jar file is a .jar.zip file. rename it to .jar et voila.
this is great. was searching and trying similar stuff for months!
gr8!
Looks easy but what if you have a mac..
.jar is a folder. please help
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Thanks for this info.
This was the application which I was searching all over the net.
Thanks a lot
I get the message
“Forbidden
You don’t have permission to access /files/droidAtScreen-0.3.jar on this server.”
while trying to download
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Great tool! Now if it could only accept mouse clicks from the PC to perform commands on the phone it would be perfect!
Keep the great work!
Marc
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I stand corrected, it does work, please ignore the last comment.
Works great, but landscape doesn’t seem to work with Froyo… it displays the image in portrait mode correctly, but kinda hard to read sideways.
Fantastic utility, Thanks!
Thank u very much
it really helped.
ur work is perfect.
Hi Ribo,
Its an Awesome application. really very useful. Also can you please let me know how to take screenshot only in command line. Can you please provide the utility for that?
Thank You.
Regards,
Rajesh Kumar
Whats the minimum version of android sdk required to run this jar?
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Excellent tool, I’ll use for getting static snapshots for the manual of my application. If it is possible to have it smoothly working with higher fps rates, so it can be used to produced screencasts, it would be fantastic.
Awesome Application!!! Thank you.
Great job. It’s work. Waiting for the next version.
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Thank you for this. Much appreciated.
Excellent utility, just what I was looking for. Had to do a live demo yesterday, wish I had this then. Thanks!
Very nice, thank you! Exactly what I was looking for. I am also running at 30fps but seeing some lag when scrolling.
hi, can you list more details on how to use this application on pc?
i have install the sdk and java, execute the downloaded jar and browse the path to sdk/tools/adb.exe but nothing happens still.
It will be find if we can record video.
I Increase frame rate, but it’s a bit laggy. How can it be more smooth ?