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Getting Started in Android Development on Nook

I am an experienced Apple developer who is looking to develop for Android. I do not currently own any Android devices, so I am considering purchasing a B&N Nook HD for development purposes, which now runs Android. From the research I've done, it seems that the spectrum of Android devices is quite varied and disorganized compared to the Apple world (no offense intended). So, my question is, even though there are better (more expensive, too) devices to purchase (Nexus tablets), will a Nook HD suffice for beginning Android development? By the way, my intentions are to develop mostly tablet utilities with emphasis on networking and data manipulation. I'm not really interested in hardware-specific areas like graphics and sensory input (with the exception of the touchscreen, of course). Thank you for your advice.

In a general sense, yes. Your device will do just fine. However, a caveat is that you must take into consideration the flavor of android you are planning to target. e.g. Working on a Froyo flavor won't necessary guarantee it will run on the latest Jellybean and so on.
Hell, I started developing android almost 2 years ago (but stopped indefinitely) but it was only this year that I took it upon myself to get a PHYSICAL android device when I continued to develop my app. For no particular reason I just dropped by the local gadget mall and randomly picked the Samsung Tab 3. Yes, reviews are bad and it kernel panics a lot but these are trivial things for my specific use.
The one major problem I had? Dealing with REAL input from REAL data on a REAL device. My app worked sufficiently fine on the emulator. When it ran on the Tab it was breaking everywhere!

What Android device should I buy for Android app development? [closed]

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I'm in the market for a basic Android device. My main reason for buying one is for learning to develop mobile apps. While the Eclipse IDE offers a virtual Android device for testing apps, it's not the same thing as a real Android device and won't put me on the same wavelength as Android device users. (The most obvious example: Visibility is poorer in a bright outdoor environment than indoors.)
Some questions:
Is a tablet PC the type of device I should get? I get the impression that it's more versatile than other devices. I don't need a smartphone, because my dumbphone works well for me, and I don't even use it that much. And I HATE the idea of being locked into a specific wireless provider. I'm not interested in ebooks, because I still like books on paper better.
Should I get a device with Android 2.3 or 4.0? On the one hand, over 90% of current Android users are using version 2.3.3 or earlier. On the other hand, 4.0 is better and will be gaining market share. (Would buying an Android 2.3 device now and buying an Android 4.0 device later be my best bet?)
In addition to wifi, what else should I look for?
Are there any brands/models I should avoid? I remember hearing that the Packard Bell PCs were the most unreliable. The Yugo was a terrible value. (An old Oldsmobile Cutlass clunker was a better value - at least as reliable but MUCH cheaper to buy.)
Is there any point in buying used? The listings on Ebay and Google Shopping don't show the used tablet PCs to be that much cheaper than new ones, and there are more new tablets than used ones available.
Ebay listings currently (5-23-2012) show over 200 Android 2.3 tablets selling for $55-$90:
http://www.ebay.com/sch/iPads-Tablets-eBook-Readers-/171485/i.html?Operating%2520System=Android%25202%252E3%252Ex%2520Gingerbread&LH_BIN=1&Internet%2520Connectivity=Wi%252DFi%7CWi%252DFi%2520%252B%25203G%7CWi%252DFi%2520%252B%25204G&_nkw=android+2.3&_dmpt=US_Tablets&rt=nc&LH_ItemCondition=1000
Ebay listings currently (5-23-2012) show over 200 Android 4.0 tablets selling for $83-$107:
http://www.ebay.com/sch/iPads-Tablets-eBook-Readers-/171485/i.html?Operating%2520System=Android%25204%252Ex%2520Ice%2520Cream%2520Sandwich&LH_BIN=1&LH_ItemCondition=1000&Type=Tablet&_pppn=r1&_dmpt=US_Tablets&Internet%2520Connectivity=Wi%252DFi%7CWi%252DFi%2520%252B%25203G%7CWi%252DFi%2520%252B%25204G
What do you think?

This question is probably off topic.
But here are my thoughts:
If you want to develop the truth is you should try to have access (be it ownership or just access) to any devices that you intend to support with your applications. This is certainly not possible for everyone, but there are ways that you can maximize your value while building a device collection by aiming to hit the largest swath of different types of devices.
You have no obligation to be locked into a contract (or even any service) for a telephone. If you go to a carrier store you can purchase a device at full price and leave the store without activating any service on it (In general, subject to change at the whim of whatever store you are in =) If you intend to by a phone for full price expect the range of prices to be $380-$600. From what I can tell about your situation I would think that a phone is best route for you to start off with. In addition to being able to buy from a carrier, Google also from time to time directly sells a "Nexus" device which is released with stock(ish) android OS (no skins etc..) The current device in this line is the Galaxy Nexus which is being sold directly through the (former) Android Market That is a good choice because it is more or less the latest generation of hardware, and the newest OS (these Nexus devices tend to receive their OS updates in a more timely manner than carrier tied devices). In fact the first Nexus device was marketed heavily toward developers, this line of phones was meant to be used for development.
Is a tablet PC the type of device I should get?
If you intend to create applications for tablets then yes. If you intend to develop phone applications you should really be testing on a phone.
Should I get a device with Android 2.3 or 4.0?
Ideally both on different devices. If you must pick one, then it depends on your budget 4.0 is only on the newest devices right now so they are likely going to be more expensive than some of the devices you can find with 2.3. (although $399 for the Galaxy Nexus might be hard to beat in price, even for some of the 2.3 devices for sale)
In addition to wifi, what else should I look for?
On phones that can be readily purchased in the US your choices are basically boiled down to only a few things. Screen Size (anywhere from tiny to pretty damn big for a phone), HardwareKeyboard(in a few different shapes and sizes), Camera (if you care about it). In general most of the other features are fairly standard (i.e. bluetooth, gps, accelerometer, etc..) The other thing to consider would be "Oomph", despite being called phones what people are carrying around today are small computers. They have CPU, GPU and RAM just the same as PCs. Battery life is the last major divisor, there is a fairly wide range of battery life expectancy (hint, massive screen and multiple cores need lots of battery). However since you don't seem to want to use this device as your phone some of this stuff may not matter as much to you.
Are there any brands/models I should avoid?
Anything in the list of your first ebay link. In general (in the US) the major phone manufactures are: HTC, Motorola, Sony, LG, Samsung. There are many other devices out there that are nice as well. But these guys are generally the ones consistently pumping out the most used phones. Idealy you should aim for a spread of device's made by different manufacturers. The custom skins and addons they like to use in their versions of the OS tend to like extra testing. Having one of each will help you help the largest chunk of your users.
Is there any point in buying used?
There are good deals to be had on nice but slightly dated phones. If you don't know what you are looking at I'd stay away though, it could be easy to get ripped off.

Well it does not seem like you need a very expensive device. Guess you could buy Google's and Samsung's old Nexus S which is not the newest around but still has android 4 because it's Google's "offcial" or something. And since it rolled out with 2.3, you should be able to download the old version somewhere and flash it. That phone should be cheaper, especially second-hand.
I mean since there are so many devices with different screen sizes and all you can't really find one that will reveal what other device-users will think of your apps.

Carrier options should be a non-issue for development. You can buy any Android phone for any
carrier including unlocked, and that should not affect your development flexibility.
Get the lowest version you can have. 2.3 and 2.2 have the most market shares right now. There is no reason to get 4.0, unless you are developing specifically for Android OS 4.0 and above (meaning that you actually use API that only exist on 4.0 and above and not lower).
Your development platform also affects what phone model to use. If you use Windows, get a phone that comes with Windows drivers. It'd be a bummer to buy one only to find out that Windows can't detect it. Mac and Linux do not need drivers, as they are both UNIX based.

You should get a phone. If you don't want to use it you don't have to... but most likely the majority of your users will be on a device. If you want a device that is always up to date and is great for testing I recommend the Galaxy Nexus.
Since most Android phone users are not on the most up to date os version, I prefer testing on a phone with 2.3

If you temporarily need a phone to test your app, Sony Mobile developer program has a phone loaner program in US and Canada where you can borrow a device for up to 30 days.
http://developer.sonymobile.com/wportal/devworld/phones/borrow-a-phone
/Magnus E
Sony Mobile

What Android Device Should I Get to Develop My Android App? [closed]

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I'm going to be writing my Android app soon, and thinking about buying a solid android device to develop on and play with. My question is for you guys, assuming you wanted to develop and test your app on an Adroid device, what would you recommend?
Samsung Galaxy looks promising, but I know choosing a good dev phone is one of those things you definitely need to choose wisely on. The Android device landscape seems to be broadening every day, so it'd be good to hear about the latest devices for developing. Perhaps I could just get a cheap clunker and it won't make a difference?
I'm sort of a nerd, so if the device is pricey, but has some cool features that others don't, then I'd still consider it. However, I don't want to waste too much money on features that I may not need (or that may distract me ;)), like HD video, although it looks like a lot of phones have HD support anyways.
Tablets seem a bit much, but I'm still open to it... if you're loving your Android tablet for developing, let me know about it. I could see some benefits like being sure my app will run on Android tablets and different resolutions.
Any caveats I should be worried about? I have a buddy who was developing Android when it first came out and I remember him complaining that he could never update his device, since the updates were always restricted for some reason. Is that still the case?
If you can speak to any of these points, I'd be happy to hear them.
Also concerned about using the location based stuff, like gps, will I need a contract?
I'll be developing on my Macbook Air OSX, if you have any additional input as far as devices go, and using a Mac, that would be great too. Thanks!

You should develop against the Android 4 platform, but during the course of development, you will figure out which APIs you are using. The level of APIs you are using determines which minimal OS you will support. There's 2 manifest settings in play here: target API (15 aka ICS), and minimal API (depends on what you use).
To get a good mix of API support and broad coverage in the consumer market (using the dashboard that #Basic pointed to), I tend to point people at API level 8, which is Android 2.2 (aka Froyo). You'll hit roughly 93% of people out there and you'll get the APIs you need for most development. If you know you need newer APIs, by all means use them. The world will catch up, it may just take some time.
I typically point people to get a Nexus phone or XOOM tablet. You need the reference design so you can stay on top of the official releases from Google as quickly as they come out. The AOSP builds are important to follow, but they aren't the only game in town. After that, if you want to be serious about it, you should pick up one phone each from the major OEMs so you can deal with the differences in the customized platforms (Sense, Blur, Touchwiz, etc.)
Disclaimer: I work for Motorola. MOTODEV Studio is my teams' product (thanks Basic!)

Samsung Galaxy Nexus, Good because it is a phone that is supported directly from Google.
Samsung Galaxy S2, it just has all the features you need
One of those two for spec heavy phones, but you also need a cheaper not so good phone so you can get both ends of the device range, so get something like a IDEOS as well.
All you need to remember is that there is never going to be just one type of device being used, there are hundreds, if you have a phone thats close to the bottom and your app works almost as well as a phone as the top it will be good, because you will be able to catch the whole range of customers.
Also for location based things all you need to do is put permissions in the android manifest and it should be good, users are notified about these when they download the application
Mac can be good for development, its supported by Android as well so I dont think you will have a problem, when I went to the Android devs lab it seemed to be that all the Google guys had macs anyway

It depends what you want to support. There's a whole spectrum from the HTC Wildfire up to Galaxy S2 / HTC One.
What versions of Android are you going to target? Some people are still on 1.5!
Regarding updates: Google releases updates at their own speed. The problem is that before that update reaches a given device, the carrier usually customises it to include branding, mandatory aspps, etc... Which can take an indeterminate length of time or may not happen at all. This was one huge benefit of the Nexus One - it wasn't branded so updates were available as soon as they were released.
Regarding Development: eclipse is available for almost every platform and is a great starting place. MOTODev Studio is based on eclipse and is excellent as it comes with templates, pre-configured emulators, etc...
Location Services: Android uses 3 approaches to get your location: GPS (Works poorly indoors, can be slow to get a fix, quite a battery hog), Wifi (Google have mapped the location of a lot of wifi networks - thus if it can see a known wifi network, it knows roughly where it is) and finally network (It knows the location of the cell tower(s) your phone is talking to).
None of the above needs a contract but Wifi requires an internet connection (to perform the lookup) and Network obviously requires your phone to be in range of and allowed to talk to a cell tower - which usually just means getting a sim for a network which covers your area.
Note that when getting location on the device, you can opt to have coarse of fine-grained location information. Coarse doesn't fire up the GPS (They also require different permissions)
See this page for more info about location

Personally, I would recommend the Toshiba Thrive 10.1 Inch Android Tablet.
It has:
1 GHz Nvidia Tegra
1 GB RAM
Full Size USB Port
Full Size SD Card Slot
Full Size HDMI Port
Mini USB Port
Can be upgraded from Android 3.1 to 3.2 or 4.0
And it usually only costs about $200-250 depending on how much memory you want.

Which Android device to get for app testing?

I am beginning Android app development and I would like to know which device would give me the most comprehensive testing environment. I would like my app to be compatible with the most number of devices without breaking the bank by buying a dozen devices. Just testing on the emulator is not an option because it runs at 1/10th of normal speed.
OS Version
Should I purchase a device with the most common OS? As of now, 2.2 is the most popular. Obviously, a 2.2 device wouldn't be able to test run an app made for 3.0. But is the reverse also true? If I buy a 3.0 device, would that allow me to test all lower versions?
Tablet or Phone
Given that my app won't be dealing with phone calls, should I be buying a phone or tablet? Are the two sufficiently the same except for resolution? Has your app ever worked on a tablet but failed on a phone? The Apple iPad has a neat emulation mode for iPhone apps. Is this feature also available on Android tablets?
Price is also a big consideration when choosing a tablet over a phone. I'm not going to sign up for another cellular plan, so most phones would have me fork over $500+. That would come out to be the same price as the Motorola Xoom. But arguably Android phones are much more popular than tablets, so a Xoom wouldn't let me see what most of my users would be seeing.

In general it's up to you, I suggest you Google Nexus S, because of NFC module in that phone (only that phone nowadays as I good know have NFC), besides that it has everything you need. Big plus for screen.
Android 3.0 is made generally for tablets but of course you can write application in 3.0 and run it on 2.2 or 2.3 just look for backward compatibility, and use reflection.
Also good to know that it does not depend of your phone which version you have it's up to SDK ver which you choose during creating project, in general you can set 7 as min SDK and test it on phone with 9.

If you are creating applications which requires a lot of custom drawing/animating such a game, then a slew of devices would be ideal to test against resolutions, DPI, RAM, CPU power, etc.
If you are using more of the native components then you do not have to worry as much about the different screen types and sizes as these tend to scale very well.
This question was brought up at GDC's Android Developer Day, you may be able to find the video online. Basically, it boiled down to trying to get one of each kind of device, low end, mid, high. It was also recommended that you built for the newest SDK, then start building against older ones, fixing, testing, rebuilding.
Therefore, I would personally recommend the Nexus S.
The company I work for does Android development on the original G1, HTC Hero, Samsung Epic 4G, and HTC Incredible.

In J2ME and Android which one is more useful, useable and popular as mobile programming language or framework? [closed]

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I am very interested in mobile application development. But which language or framework is more popular, useful and usable?
I know Java well. If you have any idea and/or experience, please help me to take my decision.

J2ME is much more popular than Android - many phones of many vendors (Nokia, Sony Ericson, Motorola, LG, Samsung and more) have it, and you can deploy application to them. The price is limited capabilities and no consolidated distribution channel (for the moment, Sun is talking about the Java Store).
On the other hand, Andriod has much more capabilities, its API is closer to the Java API, and it has more capabilities, but there is a limited number of phones. Also, you have the Android market as a distribution channel.
If you can describe what you have in mind, I can elaborate more.
Added Information
The J2ME market is quite large, but Android is rising fast - it is a true smartphone, a segment which has become more and more popular in the recent years. According to job trends, both are have roughly the same demand now:

I've dabbled in some J2ME programming, but right now I've written about 4 Android apps.
My observations:
The Android API is a lot of fun to use. J2ME is showing its age. For example, a JSON parser is built in. And you have access to SQLite. Android's SQLite access code is like an amalgam of lessons learnt from Ruby on Rails, REST and plain-old SQL.
In terms of deployment numbers, there are more J2ME apps than Android apps. However if you want to enter the smartphone market, Android is second in mindshare to iPhone (BlackBerry is reinventing itself, but its API is still looking like a J2ME++). Read this article.
The whole platform is open source. So learning it and mastering it is easy.

I think you're missing an important fact: Android is not only a platform, but also brings with it a fully fledged application framework which continues to grow and gets backing from some very big players (Open Handset Alliance). J2ME is just a stripped down version of the Java platform. That's a major difference.
Having worked with Android since over a year now, I can definitely say that is has grown into a very powerful system and decent tool support.

Only Android Can Catch the iPhone
There are something like 20 Android phones coming out before the end of the year.(*)
Networks like Verizon that ship only deliberately-crippled handsets will be hard-pressed to win sophisticated consumers. Their customers mostly make voice calls and text each other, to get fancy they might run Song ID or VZ Navigator.
I think the issue is: which phone owners actually d/l and use the apps? The walled-off Verizon customers, not so much. Right now, the action is in the iPhone, but I think Android might catch up.
(*) Here is just one.

I have to agree with others on shying away from J2ME development. I have a Motorola RAZR V3xx that I've used for a few years. It is as standard a J2ME-supporting phone as you're likely to get from most carriers. I decided to look into doing some J2ME development for the phone to give myself some helpful utilities.
Long story short, there is a reason you pretty much only see games on J2ME phones. Unless you are willing/able to shell out big bucks for signing certificates, you cannot even access the most useful APIs available on the phone. Things like File IO, PIM (contacts, calendar), Bluetooth, etc. are simply blocked unless you get your application signed using a carrier's (AT&T, T-Mobile, Sprint, Verizon, etc.) special certificate. And the cost of these certificates can easily exceed hundreds or thousands of dollars. Putting this simply out of the range of your average hobbyist.
I could go on, but a couple of sites have covered this topic in much greater detail Here and Here.
For me, this pretty much means I will be targeting the Android in the future. The iPhone is also a good place to be targeting. The current state of J2ME on handsets here in the U.S. is just not worth my time for pet projects. Which is disappointing, as most of these phones are capable of doing many useful things otherwise.

It depends on what you mean by 'popular'. If you are counting in terms of installed handsets, then J2ME wins hands down. As far as current installed handsets, Android has few mobile phone companies and only recent mobile phones (whereas J2ME has been around for the last six odd years).
However, that doesn't make working with J2ME a nice-to-have. Sadly, each manufacturer cripples it in some way, and not all phones with the J2ME badge are equal; some are more equal than others. MIDP, MIDP2.0, CLDC, CDC ... the list of acronyms goes on. And when you buy a phone, it has 'Java enabled' without actually saying what it is that it supports, so even the customer doesn't have a clue.
Despite its large installed base, J2ME remains fundamentally unpowered for the world's current generation of mobile phones; the upgrade path is usually non-existent (though it's the manufacturers to blame for that, unfortunately) and you can't even do things like access Bluetooth or contacts in any useful way; though extensions have been proposed for J2ME, they've never really lived up to the expectation of write-once-run-anywhere.
Whether Android goes down this route as well remains to be seen - the biggest concern is manufacturers are trying to 'do their own thing' (e.g. Motorolla's BLUR UI) which will further fragment the market.
Lastly, don't forget that it's in the handset manufacturer's interests for you to throw away your old phone and buy a new one every year (or two). Support, bug-fixes, and generally upgrading your old phone's software, though technically feasible, never happens. I had a P990, and despite a few rounds of updates, it remained as buggy as hell (which is why I ditched it for the iPhone when it came out).
So, from a programming perspective, Android is better than J2ME. For reaching many handsets, J2ME is better than Android. For general user interface and power, choose an iPhone.

Android and J2ME aren't exactly similar in their scope as platforms, in a way, it's like comparing apples and oranges.
When we talk about Android, we are talking about full-blown mobile OS, with much more extended capabilities than J2ME. It could be used for pretty much everything you can think about - system utilities, social network services, location-based apps, games, etc. Android has also richer UI kit and lots of available source code to learn from.
In Android you have access to many APIs, designed to be used in modern smartphones, and these APIs are being refined constantly, while J2ME has started to feel aged, and is concentrated mostly on graphics.
The penetration rate of J2ME is currently bigger than Android's, and by bigger I mean much, much bigger, but business analysis doesn't end just with number of handsets of the given platform.
If you have idea for a great app, you'd better do it for Android and/or iPhone OS - it will be easier for you and you'll be reaching to users that are more likely to need such app, and that are more likely to pay reasonable price for it.
Overall, I would recommend to start with the newer platform, even if only because it would be more interesting and a better learning experience for you.

While there is no shortage of 'feature-phones' supporting j2me in the wild, I suspect third party applications get very little market 'traction' because the users aren't looking to install new software on the phone.
Android is a breeze to develop for. I think you should try it.
There is no harm in getting the SDK and experimenting for a few hours..

J2ME is very popular because almost every phone can run these applications.
Android on the other side has just few phones and netbooks supported, but Android API/SDK is more powerful than J2ME. Android phones come with great hardware and you'll have the opportunity to work with all these "cool" touch screens, gps, accelerometers, etc. It's still in development, but I think it has a future.

From my point of view, Android is more and more better than the J2ME
Learn Android and enjoy... we have lot of fun while developing the Android apps
J2ME apps look and feel and development environment not effective compare with the Android

J2ME is the most popular. Because many mobile phones have a support for J2ME. J2ME's main advantage is that it belongs to the Java family, it is open source and widely supported by various kinds of devices.
Many mobile phones and other devices support J2ME due to its simplicity, easy to implement, etc.
The J2ME is the base for Blackberry,Android,etc.Because the others (other than J2ME) are developed after the J2ME.After eliminating the tough concepts in j2me,using some j2me concepts they build their environment like android,blackberry,etc.
J2ME is very old .It have many drawbacks,limitations,etc.
These drawbacks are overcomed in the latest technology like android,blackberry,etc.

J2me is good .It is old.It have many disadvantages,etc
Android overcome that disadvantages.Android keep on growing
The general java feature "platform independent" is failed sometimes,some scenarios in J2ME.
Android is new technology.It have many features,etc than J2ME.
Developing an application for android devices is simple,easy,etc.
We need ot get the pay liscence for developing application and deploying (applications) into the device.
The android SDK is obtained by free versions.
My opinion is Android is better than J2ME.