Android Sudoku Source Code Download
Giovanna Qiu
Now it's time to explore Android for me. I have designed one ui which is shown below, The thing is I am getting confused with what should I do in the first frame in order to get 9x9 grid. Actually the same thing I developed in core java by placing 81 JTextFields in each cell using for loops and with the help of gridbaglayout and I got my application perfectly working. But in android how can I define my 9x9 cells in xml, so that it should accept numbers and entered numbers should be retrieved too in order to validate the sudoku rules. Following is my code and diagram. Can anyone suggest how to make the frame 1 to have 9x9 cells? If I use TextEdit in my xml file, it would be 81 textfields, and if I use Canvas(I am thinking, don't know whether it is possible), it seems to me impossible to make it accept numbers and to retrieve from that canvas board. I really appreciate if anyone could help. Please go easy, if it seems silly question(which I hope not, as I tried 2 days for it), as I am new to android. Thanks in advance.
By the time I make that code it was fast, maybe fastest solving general sudoku problems. Several faster programs appeared and finaly come Brian Turner with his BB_Sudoku and record solving time. Uses Logic first, then backtracks.
So hopefully, what you've done is you've gone and grabbed the source code for the starting point, which includes things like string resources, right click on the common package again, and we're going to create a new kotlin interface, which is going to be called dispatcher provider.
This project is an easy console application gaming project and is a fine demonstration of Open Graphics Library and C++ programming. The source code for the game is in project format, which implies that it has different C++ files, and every user-defined header file and function. A few of the C++ files in the projects include main.cpp and class.cpp.
I used to read code from popular open source projects to see how others implement certain functionalities and also to learn from them. (I am a firm believer of the fact that you have to read good code to write good code)
Could there be a better way to start without looking at the code of the developers who developed the framework? ? These are 15 different android sample apps created by the core developers of the Android framework. These include a couple of games, photostream, time display, home screen shortcuts etc.
RemoteDroid is an android app which turns your phone into a wireless keyboard and mouse with touchpad, using your own wireless network. You can learn lot of things like connecting to a network, controlling user finger movement etc from its source.
TorProxy is an implementation of Tor for Android mobiles. Together with Shadow, it allows you to browse website anonymously from your mobile phone. You can learn about tunnelling socket connections, managing cookies etc by reading its source code.
Standup Timer is an Android application that acts as a simple, stand-up meeting stop watch. It can be used to ensure your stand-up meeting finishes on time, and gives all the participants an equal share of time to state their progress. You can learn how to use the timer functionality by reading the source code. Also this apps has clear distinction between view, model etc and has lot of util methods which we can reuse in our app.
The pedometer app tries to take the number of steps you take every day. Even though the count is not accurate, you can learn different things like interacting with accelerometer, doing voice updates, running background services etc by reading its source code.
How can you expect a list of apps from me without mentioning WordPress ? This android app is from the official WordPress development team. You can learn how to make XMLRPC calls (in addition to other cool things) by reading its source code.
Subsonic is a great music streaming app in Android. Its open source as well.
It provides sources for both the server side code as well as the Android app used to talk to the server. Its really amazing app for streaming your audio.
hello everyone, am a new android developer, my task is developing school app, in that fields are About us, Contact us, Gallery, News, etc.
my problem is , whenever we click on the News , All school latest updated news window will be display, then,
How should they update news?
How should i get that page?
please send me the code about this,
because when i should not complete this task they must throw out side me. please friends ,help me,
Great listing,Developing an android or ios application is not a back-breaking process,I got a completely developed application pleasing my requirements in four to five working days and was also provided with tutorials plus source code.
To run this project, you need to have NodeJS Installed on your machine and use Modern browsers such as Google Chrome, Mozilla Firefox. This game in ReactJS is free to download with source code. For the project demo, have a look at the video below.
Dec 01, 2018: The FLTK Team is proud to announce that we moved our source code repository to Git and the FLTK website to a new server. Please see article FLTK Moved to Git and to a new Server.
Below, I take a look at two projects producing a wide variety of Android apps designed to only request the permissions they require to function. These apps cover a wide range of functions with each app being focused on doing only one task and doing that task well. Users looking for well designed, functional apps with no extra features and no anti-features (i.e., advertisements) should consider checking these apps out. Developers, especially those just getting started with developing for Android, should take a look at the source code for these apps to learn about developing apps with a focus on using minimal permissions and respecting users' privacy.
Privacy Friendly Apps is a project of the Computer Science Department of the Technische Universität Darmstadt's Security - Usability - Society research group (SECUSO). The apps require minimal permissions, do not track the user, and contain no advertising. The apps are open source with some apps released under the GPLv3 and other under the Apache 2.0 license. The source code for all of the apps is available on GitHub and the apps can be found in both the Google Play store and in the F-Droid repository.
All of the apps that are part of the Simple Mobile Tools family do exactly what their names imply. The apps are: App Launcher, Calculator, Calendar, Camera, Draw (a very basic drawing app), File Manager, Flashlight, Gallery (for photographs and videos), Music Player, and Notes (a basic note taking application). All of the apps are released under the Apache2 license, and the source code is available on GitHub. The apps can be installed from the Google Play store or the F-Droid repository.
Through 202 pages, 32 source code examples and an Android Studio project you will learn how to build cross platform HTML5 games and create a complete game along the way.
Through 202 pages, 32 source code examples and an Android Studio project I will teach you how to build cross platform HTML5 games and build a game with you along the way.
Enter your email address below to get a .zip of the code and a FREE 17-page Resource Guide on Computer Vision, OpenCV, and Deep Learning. Inside you'll find my hand-picked tutorials, books, courses, and libraries to help you master CV and DL!
Current version: 1.0 (September 10, 2008) Pocket Sudoku is the definite sudoku application for Pocket PC (Windows Mobile). It can currently generate sudoku puzzles using six different difficuties, solve any valid puzzle, display automatic and manual pencil marks, give you hints when you get stuck, and much more. Of course, it comes free of charge and its source code is completely open!
The game was featured on Google Play and downloaded over a million times in the first year. It's gotten a light refresh every couple of years since then. This time round, I've stripped it back to basics (removing some rarely used features like Google Play Games) and released the source code.
I thought this would be an interesting project after doing a Sudoku solver leetcode problem. The app uses the OpenCV library to detect the sudoku grid and prepare the image for OCR, e.g. remove the grid lines. The Tesseract library is also used to perform the OCR. This was the result of a few days exploration of OpenCV, Tesseract and Android, so it is not super robust. If there is any interest then I will improve the quality and publish it to the Android Play Store.
First, though, a grumpy note on the gthumb problem. The bugzillaentry indicates that this crash is the result of being unable todisplay 3D effects. Now, as far as your editor knows, gthumb has not yetacquired the ability to work with those 3D cameras which are all the rage.The 3D requirement, instead, comes from a desire to show fancy effects inthe "slide show" mode. Bling is nice, but if it kills the ability to usethe tool for its very two-dimensional intended task, one needs to questionthe priorities involved.Unlike gthumb, Shotwell 0.5.2 is entirely happy to run without access to 3Deffects. Also unlike gthumb, Shotwell will not just operate on a directoryfull of images; one must, instead, "import" images into the application.Importing can be done directly from a camera or from a directory.Obnoxiously, the file browser always starts in the user's home directoryregardless of where the application was started - and regardless of wherethe user imported a directory from moments earlier. The importer is notcurrently able to deal with images in raw formats.After being imported, photos are organized into "events," which are justthe day in which they were taken. The default view is organized aroundthese events, so the basic mode of interaction is one of a reverse-sortedtimeline of photos. Each event has one "key photo" associated with itwhich is shown in the event-level views.Of course, real events often span more than one day; Shotwell provides theability to merge the day-based events into larger groups. There does notappear to be any way to split an event apart, though. If one photographs awedding in the morning, a business meeting after lunch, and avuvuzela-inspired bar brawl in the evening, it's all forever a singleevent as far as Shotwell is concerned.Naturally enough, there's support for attaching tags to photos. It's easyenough to quickly add tags to groups of photographs; they can only beremoved from a single photo at a time, though. There is no hierarchy totags, so the list will get long if a lot of tags are used. Tags, likeevents, are displayed in the left column and are easily selectable.Shotwell has some simple image editing options, including rotation andcropping. There is a red-eye removal feature as well. The use of it issomewhat awkward; it puts a small circle on the image which the user mustposition over the eye and size accordingly. It does work, though, and isarguably preferable to the gthumb equivalent, which is sometimes betterdescribed as a "red face removal" feature. Shotwell has a small dialog foradjusting parameters like exposure and saturation; there is also an"enhance" button which performs some behind-the-scenes magic, not always togood effect.The red-eye removal feature exposes one strange gap in Shotwell's featureset: there is no way to zoom in on an image. It's always "fit to window,"regardless of what the user might want. This makes the placement of thered-eye tool's circle problematic on anything but a close-up photo.Users of other image editing tools will likely be looking for a "save as"option after making some changes, but Shotwell has no such thing. Instead,all edits are squirreled away in some hidden database. Shotwell does notchange the image itself; it maintains an edit list which is applied on thefly when the image is displayed. So, once some edits are made, theoriginal photo is no longer visible in Shotwell unless the user has thoughtto create a duplicate prior to making changes. One can always undo changesto get back to the original once one remembers that changes havebeen made. There is no indication in the interface, though, that anyedits have been made. One wonders if the Shotwell developers areaware of the fact that they are committing themselves to the exact behaviorof all their editing primitives forever; it would be most disturbing to seepictures change in unpredictable ways after a software upgrade.One can save out an edited version of an image using the "export"feature. Exporting is also the only time when it is possible to change theresolution of a photograph. It is not possible to change the format animage is stored in. There are also features to "publish" a photo tovarious proprietary web services; your editor did not test any of those.For users who simply want a way to collect and organize their photographs,Shotwell may well be developing into a reasonable alternative. For grumpyeditors, though, this application seems like the wrong approach. Adirectory full of photographs is exactly that; there should be no need to"import" it into some application's black box to work with the contents.Any non-trivial photographic workflow involves a number of tools, includingraw editors, the Gimp, hugin, etc. Once an image disappears intoShotwell's alternative universe, it becomes unavailable for use withanything else. In other words: in your editor's view, this practice ofturning a directory of image files into another, hidden directory of image files breaks theconcept of having a box full of useful tools and makes Shotwell unsuitablefor real use. One also must wonder what happens, years from now, whenusers may want to switch to a newer, shinier application which can copewith the 3D photos they will be taking at that time. How does one transferthousands of pictures - many with edits hidden in places known only toShotwell - into that new application? Running "export" on them, one at atime, seems like an unappealing option. Shotwell is free software (it isLGPLv2.1-licensed), so somebody can certainly write a "set my photos free"tool for it. But, to your editor, the need for such a tool just seemswrong.There is much to be said for innovation in this space; Linux has some nicephoto management and editing software, but it can certainly get better.But one would hope that this innovation would happen in a way that does notbreak the toolbox concept in a domain where toolboxes are highlyappropriate. Shotwell is a young utility; perhaps it will evolve and learnto play better with others and to avoid locking its users in. Until thattime, it will doubtless be well received by certain classes of users, butit's certainly not for everybody.Comments (98 posted)Mark Shuttleworth at LinuxTag By Jonathan Corbet
June 14, 2010 Your editor had the pleasure of giving a keynote talk at the 2010 LinuxTag,immediately prior to Mark Shuttleworth's keynote - a position described bymore than one person as being Mark's warmup act. That role must have beensuccessfully carried out; Mark's talk was, indeed, well received from thestart. Topics ranged from the familiar (cadence) to issues like quality,with a look at upcoming Ubuntu design features as well.Mark described his (and Ubuntu's) job as taking the great work done by thedevelopment community and getting it out there where people can use it.There has been a lot of progress on the development front, resulting in agreat deal of top-quality software. But that's not where the job stops;getting that software to users, Mark says, is "a whole new level ofawesome." Achieving this new level is his objective."Cadence" - the regularity and frequency of releases - has been one ofMark's talking points for a while. The conclusion that he has come to isthat releases are important, they have value in and of themselves. It is,he says, more important to get a release out than to have any specificfeature included in the release.Why is that? Releases draw attention to the project and generateenthusiasm among users. Releases also can help to keep the entirecommunity busy. Developers can run with something like a 100% duty cycle;there's always stuff to hack on. But other community members - packagers,documentation writers, artists, translators, marketing people, etc. -really need a release to focus their energies around. Regular, frequentreleases thus keep the whole community engaged in the project. They arealso something which free software is uniquely capable of doing:proprietary software releases are much more feature-driven and cannot bedone with the same kind of regular cadence.For a while now, Mark has been pushing the idea of a coordinated cadenceacross multiple projects. Quite a few projects, he says, are headed towardsomething like six-month release cycles; why not try to coordinate them sothat distributors can all focus on the same specific releases? That kindof coordination could help projects focus their work knowing that a certainrelease will be picked up and widely distributed, and it should helpdistributors to minimize duplicated effort and get the best of what thedevelopment community has to offer. In terms of progress, Mark says thatUbuntu is getting closer to proper release cycle coordination with Debian,but no further details were offered.Quality is another theme that Mark's talk covered; he urges the communityto start thinking differently about the quality of its code. When thefocus is on "hero developers," he says, quality tends to take a back seat.He would like to see a stronger focus on everyday quality in developmentprojects, starting with broader use of automated test suites which, hesays, are "made of awesome." The core rule for these projects is that thedevelopment trunk should pass the test suite after every commit.This kind of discipline may not sit well with all developers. But there isa key advantage to a "pristine trunk" which always reaches a minimalquality bar: it encourages users to run and test development code. Ubuntuhas been increasing its building of bleeding-edge packages for a number ofprojects; the result has been a "ten to one-hundred times increase" in thenumber of people testing those programs. A good set of regression testsalso makes it more likely that a project will take patches from unknowndevelopers; passing all the tests gives a level of assurance that the patchcannot break things too badly.Mark also touched on automatic crash reporting as a highly useful tool fordistributors and developers. The crash reporting tool can gather all ofthe relevant information and ship it off to the people who are bestequipped to interpret it and, hopefully, fix the problem. Code review wasalso favorably mentioned, with the tools provided by Launchpad gettingspecial attention. Such tools, he says, broaden participation in thedevelopment process and help to create a wider conversation about what'sacceptable in a code patch. That, in turn, helps new developers to getstarted with a project.Finally, Mark is pushing to see more attention paid to design in freesoftware. Proper design makes the software more appealing to "ordinaryusers," and thus will increase their number. It can also increase prideamong developers. But doing design right is a challenging task; it's notsomething that can always be done by developers. Mark talked a bit aboutthe design elements which have gone into the Ubuntu Notebook Edition,including the infamously moved window icons, the creation of notificationswhich don't take up screen space, "category indicators" which can indicatestatus (and provide controls) for a number of related applications, etc.The result of all this work is a lot of new code which, he hopes, the GNOMEcommunity will be willing to accept into its mainline.The next release is Maverick Meerkat, which Mark suggested is the "Don'tpanic" release. Why? Well, it seems that they've moved the release dateforward slightly to October 10, which has the effect of balancing outthe year's two development cycles a bit. But the binary 10/10/10 releasedate has appeal to hacker types, especially when one realizes that0b101010 = 42.Looking toward the future, Mark put up the famous chasmdiagram by Geoffrey Moore. This diagram is a bell-shaped curve showingproduct adoption over time; there is, however, a gap between the "earlyadopters" and the majority of users. Getting across that gap ("chasm") canrequire changes in how a project is developed and marketed. Mark says thatLinux as a whole still needs to cross that chasm, though specificcomponents (the kernel in particular) have already done it.What does Linux have to do to get to the other side? Preinstallation wasat the top of Mark's list; users need to get devices which have Linuxalready installed on them. He also says that "obvious things should justwork," where things like codecs are considered to be "obvious." We need toprovide these features, but we cannot stop caring about freedom in theprocess. As a result of its efforts, Mark says, Ubuntu will be shipping preinstalled onfive million machines this year.Some of those machines, most likely, will be running Ubuntu Light; this isa stripped-down distribution meant to run as an "instant on" alternative onWindows machines. Ubuntu Light can get a user into a web browser withinseven seconds of the power being turned on - useful when checking a webpage is all that the user wants to do. To get there, Ubuntu Light has veryfew applications and no real file management. But it is a place for usersto start, to discover a bit of Linux, and, hopefully, develop an appetiteto delve into it more deeply later on.Another area of interest is ARM processors. To Mark's surprise, theARM-oriented sessions at the Ubuntu Developer Summit were packed; there isa lot of interest in this architecture. The Linaro initiative was mentionedas an effort to make Linux work better on ARM-based systems. There isalso, evidently, a growing level of interest in ARM-based servers; thatshould be interesting to watch.There was also a brief mention of cloud-oriented endeavors. "Ensemble," away of packaging and deploying cloud-based servers, was mentioned. Also,evidently, Ubuntu is working on a project using LXC containers to run containerizedsystems on Amazon EC2 guests. This second level of virtualization,evidently, is useful for people wanting to run a number of services whilebuying only a single virtual host system.After the end of the talk, a member of the audience asked Mark about when(if ever) Canonical might open-source the Ubuntu One serversoftware. Mark answered that he doesn't "have an answer on how to do itand make it all work." One gets the sense that this release will nothappen anytime soon. Mark did try to point out that freedom has beendesigned into Ubuntu One, even if the code is not free. In particular,Ubuntu One doesn't just make sure that users can get their data out; alldata is stored locally as well from the outset. So users should not worrythat they can be trapped in the service.At that point, the standing-room-only session came to a close.Comments (58 posted)Rockbox 3.6 and beyond June 16, 2010