I am researching methods for detecting mobile devices. Let me preface this by stating that I already know about the WURFL file. One of the other options I am considering is maintaining a list of 'User Agent' header values in-house.
Has anyone seen these header values change for a specific device? I know new ones will pop up as new devices hit the market, but I am more concerned with existing values changing on me.
It is not clear what you are asking but; if a device/phone already on the market no it wouldn't change largely but you should expect change as phone/device gets service updates.
goog think about is WURFL that it will try to match the device to a more generic model.
There may be 5 different iPhone 3 S but WURFL would match all as iPhone 3 S
It is hard work to maintain your own user agent list on your own.
Related
I am getting frustrated with Google's Play store. My app won't appear in searches (at all). There isn't a "new this week" section where users can find new stuff from indie devs such as myself. Top results usually include hillarious reviews that smell fishy
I contacted Google and they said that I can pay them money to appear in top searches (via ads) and this way improve my "market strategy". I am just trying to share my free app so that others can use it, I have no market strategy
As a result, I am going to focus on my Apple Store version (which is performing much better). I am also exploring the option of publishing on Galaxy Store, Huawei Store, etc
I tried uploading to Galaxy Store but upon submitting the app I get the following error:
The registered binaries do not meet the category conditions for Galaxy Specials
Looking here I can see that something needs to be added in the manifest file. Is there a way to do this via build hints in CodenameOne? I also read that a "Galaxy SDK" needs to be added somewhere. Is this a prerquisite and if so, how would one add it in CodenameOne?
I haven't tried this but this might work, add the build hint:
android.xpermissions=<uses-permission android:name=”com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY”/>
If the build hint already exists then just tack this string to its ending.
Just curious, why does the MasterDriver agent publish the same point with two different, but similar topic names? For example "devices/campus/building/bacnet1/OCC_COOL_SP" and "devices/OCC_COOL_SP/bacnet1/building/campus". Are both topics needed?
This feature was originally intended to make writing agents that did automatic discovery easier. If you wanted to find all the devices that had an OAT point (or whatever) you could subscribe to "devices/OAT" and get the value of the OAT point on every device.
In practice about the only publishes anyone uses are the depth first "all" publishes.
You can read about all the different publish types here: http://volttron.readthedocs.io/en/develop/core_services/drivers/Driver-Configuration.html#device-state-publishes
You can shut off the ones that you don't use by changing the settings described here:
http://volttron.readthedocs.io/en/develop/core_services/drivers/Driver-Configuration.html#scalability-settings
Those settings go in the individual device configuration and are set per device.
In the future we may set the default value for publish_breadth_first_all, publish_depth_first, and publish_breadth_first to False.
Edit
I should also mention that all historians rely on the depth first all publish to do their work. If you shut that off all historians will stop collecting data.
I'm concerned - when I take a picture, I usually (ie, last week) am able to share the image to my app.
Now, however, only Google + contacts appear as share targets. For example, if I turn off sharing to G+, I get no Share options at all, only a greyed-out Share dialog that says "Visit google.com/myglass to add friends"
However, when I go to that address I clearly see my app and a number of contacts (who aren't in G+) who also usually show up.
Has something changed to cause this behavior? For example, is the code listed in the starter-project no longer sufficient to register a share target for photos?
For example, I could imagine that suddenly the acceptTypes[] parameter was now mandatory. But I'd love to hear someone closer to the API weigh in, if possible.
Thanks!
AKA
I solved this by following Alain's comment's advice.
It's very easy to think that the "Contacts" page you see at https://glass.google.com/myglass is all there is.
But if you want your app to receive shared stuff, you have to go here: https://glass.google.com/myglass/share
I'm stumped and need some ideas on how to do this or even whether it can be done at all.
I have a client who would like to build a website tailored to English-speaking travelers in a specific country (Thailand, in this case). The different modes of transportation (bus & train) have good web sites for providing their respective information. And both are very static in terms of the data they present (the schedules rarely change). Here's one of the sites I would need to get info from: train schedules The client wants to provide users the ability to search for a beginning and end location and determine, using the external website's information, how they can best get there, being provided a route with schedule times for the different modes of chosen transport.
Now, in my limited experience, I would think the way to do that would be to retrieve the original schedule info from the external site's server (via API or some other means) and retain the info in a database, which can be queried as needed. Our first thought was to contact the respective authorities to determine how/if this can be done, but this has proven to be problematic due to the language barrier, mainly.
My client suggested what is basically "screen scraping", but that sounds like it would be complicated at best, downloading the web page(s) and filtering through the HTML for relevant/necessary data to put into the database. My worry is that the info on these mainly static sites is so static, that the data isn't even kept in a database to build the page and the web page itself is updated (hard-coded) when something changes.
I could really use some help and suggestions here. Thanks!
Screen scraping is always problematic IMO as you are at the mercy of the person who wrote the page. If the content is static, then I think it would be easier to copy the data manually to your database. If you wanted to keep up to date with changes, you could then snapshot the page when you transcribe the info and run a job to periodically check whether the page has changed from the snapshot. When it does, it sends an email for you to update it.
The above method could also be used in conjunction with some sort of screen scaper which could fall back to a manual process if the page changes too drastically.
Ultimately, it is a case of how much effort (cost) is your client willing to bear for accuracy
I have done this for the following site: http://www.buscatchers.com/ so it's definitely more than doable! A key feature of a web scraping solution for travel sites is that it must send you emails if anything went wrong during the scraping process. On the site, I use a two day window so that I have two days to fix the code if the design changes. Only once or twice have I had to change my code, and it's very easy to do.
As for some examples. There is some simplified source code here: http://www.buscatchers.com/about/guide. The full source code for the project is here: https://github.com/nicodjimenez/bus_catchers. This should give you some ideas on how to get started.
I can tell that the data is dynamic, it's to well structured. It's not hard for someone who is familiar with xpath to scrape this site.
I want to create wayfinder/pathfinder mobile application. it will route visitors in our buildings. we have 20 buildings and each at least have 4 floor.
We want to develop our own wayfinder ex:http://www.wayfinderkiosk.com/
It should use Lat/Long coordinates to locate the people. and help to find its route.
So where should i start. Does any one have any idea for that. and it is going to be mobile.
I can develop app/site based on these platforms ( Mobile Web/Iphone/Adroid /Symbian/Windows )
But i need a start point. and i need your help.
Thanks
You want to use lat/long inside of a building? Assuming these visitors are going to be using their own unmodified devices, you may have trouble with GPS. Unless you somehow get reliable GPS signal despite being under a four-story building, that's probably not going to work.
An RFID-tagged badge and sensors placed throughout the building seems more likely to work. Put a unique QR-code on each badge that directs the phone's browser to a tracking page for that specific badge.
edit: and now that I re-read your question and see that multiple buildings are involved, the GPS bit could certainly work for routing them from one building to another.