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Question: Can I use the GoToMeeting app for Android on my Android device?

Answer: Yes. If you’re running Android 2.2 or higher, you can install the GoToMeeting app from the Android Market to join meetings and webinars as an attendee. We recommend using devices with a 1Ghz processor or higher for optimal performance.

Question: How can two Android applications share same Linux user ID and share same VM?

Answer: The applications must sign with the same certificate in order to share same Linux user ID and share same VM.

Question: When does Android start and end an application process?

Answer: Android starts an application process when application's component needs to be executed. It then closes the process when it's no longer needed (garbage collection).

Computer and I.T / How does Android system track the applications?
« on: April 24, 2018, 01:21:29 PM »
Question: How does Android system track the applications?

Answer: Android system assigns each application a unique ID that is called Linux user ID. This ID is used to track each application.

Question: What are Dalvik Executable files?

: Dalvik Executable files have .dex extension and are zipped into a single .apk file on the device.

Computer and I.T / What is an action? [Android Interview Question]
« on: April 24, 2018, 01:16:31 PM »
Question: What is an action?

Answer: The Intent Sender desires something or doing some task

Computer and I.T / Android application can only be programmed in Java?
« on: April 24, 2018, 01:15:22 PM »
Question: Android application can only be programmed in Java?

Answer: False. You can program Android apps in C/C++ using NDK .

Question: Can you deploy executable JARs on Android? Which packaging is supported by Android?

Answer: No. Android platform does not support JAR deployments. Applications are packed into Android Package (.apk) using Android Asset Packaging Tool (aapt) and then deployed on to Android platform. Google provides Android Development Tools for Eclipse that can be used to generate Android Package.

Question: Why cannot you run standard Java bytecode on Android?

Android uses Dalvik Virtual Machine (DVM) which requires a special bytecode. We need to convert Java class files into Dalvik Executable files using an Android tool called "dx". In normal circumstances, developers will not be using this tool directly and build tools will care for the generation of DVM compatible files.

Question: How will you record a phone call in Android? How to get a handle on Audio Stream for a call in Android?

Answer: Permissions.PROCESS_OUTGOING_CALLS: Allows an application to monitor, modify, or abort outgoing calls.

Question: What are the hottest new Android phones out right now?

Answer: Well, earlier this summer we got the HTC Evo 4G, which supports Sprint’s budding, next-generation WiMax data network and boasts a 4.3-inch display — the same size as the screen on the Motorola Droid X, another eye-popper of a phone, except it’s on Verizon instead of Sprint. Samsung is in the midst of releasing a series of what it calls its Galaxy S-class Android phones: They’re thin and light, they all have high-contrast 4-inch "Super AMOLED" screens, and they’re available (or will be soon) on all four of the big U.S. carriers. If you’re looking for an Android phone with a slide-out QWERTY, consider the new Motorola Droid 2 on Verizon or the upcoming Samsung Epic 4G for Sprint.

Computer and I.T / How should I go about picking an Android phone?
« on: April 24, 2018, 01:05:00 PM »
Question: How should I go about picking an Android phone?

Answer: No question about it: The breadth and variety of Android phones now on the market can be downright bewildering. The easiest way to narrow your choices is pretty obvious: What features and form-factors are you looking for? Do you want a phone with a real QWERTY keypad, or would you prefer one with only an on-screen keypad? Looking for a big screen (like the 4.3-inchers on the Evo 4G or the Droid X) or something that’s an easier fit in your pocket (like, say, the Droid Incredible)? Will you primarily be sending e-mail and text messages (in which case a smaller screen with a QWERTY would work), or are you interested in watching movies and other videos (big display)? Finally, who’s your carrier — or who would you like to be your carrier?

Note, it’s not rocket science.

Once you’ve zeroed in on a phone, find out which version of Android it’s running on. Is it the latest and greatest? (For now, only the Motorola Droid 2 is shipping with Android 2.2, although a 2.2 update for the HTC Evo 4G has finally arrived.) If not, ask when — and whether — an update is on the way.

Computer and I.T / How many apps are available for Android?
« on: April 24, 2018, 01:03:01 PM »
Question: How many apps are available for Android?

Answer: About 70,000 or so, growing by the day — still just a fraction of the 225,000-plus apps in the Apple App Store, but the official Android Marketplace has quite the head of steam, not to mention plenty of goodwill from the developer community given that Google doesn’t give apps the star-chamber treatment.

Question: So if the current version of Android is 2.2, why are people still complaining about Android phones stuck with version 2.1, or even 1.6?

Answer: Well, here’s where we find one of the downsides of Google allowing so much diversity in terms of available Android handsets. Don’t get me wrong: Variety is a beautiful thing, especially when it comes to phones. But it also means that each new version of Android must be certified to work on a specific handset — a long and sometimes drawn-out process that can leave users of a particular Android smartphone waiting weeks or even months to get the latest and greatest features. Indeed, manufactures and carriers may decide that it’s not worth the effort to upgrade their older phones to the latest Android version, leaving users high and dry.

On the other hand, only a handful of iPhones exist, which makes it far easier for Apple to roll out a new version of iOS to everyone, all at once — or at least it used to be easy. Because of the hardware demands of iOS 4, we’ve already seen the original iPhone from 2007 get left behind, while users of the second-generation iPhone 3G have complained bitterly that the new iOS has slowed their handsets to a crawl. So it goes.

Question: What’s up with all these different versions of Android, like "Donut," "Cupcake" and "Froyo"?

Answer: Just as Apple does with iOS, Google continually updates Android with cool new features, leading to one "point" upgrade after another.

The most recent version of Android is 2.2, code-named "Froyo" (for frozen yogurt, yum), adds features such as native USB tethering (for sharing your Android phone’s data connection with a laptop via a USB cable), mobile hotspot functionality (which turns your phone into a portable Wi-Fi hotspot that works with nearby Wi-Fi (devices) and — perhaps most important — support for Flash, meaning that Flash-powered videos and modules that (notoriously) don’t work on the iPhone will work on the Android Web browser.

Before 2.2 Froyo, we had version 2.1, which added "live" animated wallpaper, new home screen icons and widgets (tiny apps for the home screen), speech-to-text functionality (for e-mail and text messages, for example), full-on multitouch (for pinch-to-zoom gestures), and an updated photo gallery that hooks into your Picasa Web albums. Android 1.6 "Donut" (someone at Google must have a sweet tooth) added various speed improvements, support for more screen resolutions, and faster camera and camcorder applications. The first major update to Android was 1.5 "Cupcake," which (among other goodies) finally added a native video recorder.

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