Android Basics

What is the APK format in Android?

The APK file is compressed the AndroidManifest.xml file, application code (.dex files), resource files, and other files. A project is compiled into a single .apk file.

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What is .apk extension in Android?

The extension for an Android package file, which typically contains all of the files related to a single Android application.

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What is .dex extension in Android?

Android programs are compiled into .dex (Dalvik Executable) files, which are in turn zipped into a single .apk file on the device.

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Explain the Architecture of Android?

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What is a service in Android?

A Service is an application component representing either an application’s desire to perform a longer-running operation while not interacting with the user or to supply functionality for other applications to use.

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Describe a real time scenario where android can be used?

Lets take a situation that you are in a country where no one understands the language you speak and you can not read or write.

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What is intent in Android?

An intent is an abstract description of an operation to be performed. It can be used with startActivity to launch an Activity, broadcastIntent to send it to any interested BroadcastReceiver components, and startSerrvice to communicate with a background Service.

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What is an Implicit Intent in Android?

In an implicit intent, the main power of the android design, we just declare an intent and leave it to the platform to find an activity that can respond to the intent.

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