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Interview Questions 1 -- 10

Posted by Unknown Rabu, 05 Juni 2013 0 komentar

See more basics on Android along with interview questions

What is definition of Android ?
Android is a software stack for mobile devices that middleware, operating systems,
and application-specific key. The application must be implemented in its own process
and the Dalvik virtual machine interface. DVM is used effectively run multiple virtual
machines. Java byte code is executed which is converted file format called Dex.

How the data will be stored in Android or types of data stored in Android ?

Internal Storage
Connecting to a network
General preferences
SQLite database
External Storage

What are the components of Android Application ?

Android is written in java programming language.Android application are composed of

some of the main components such as:

Activities
Services
Content providers
Broadcast receivers

Explain each components of Android Application ?

see this post

http://eazyprogramming.blogspot.in/2013/05/android-application-fundamentals-or.html

Explain life cycle of Android Appllication ?

An activity is usually a single screen that the user sees on the device at one time.

An application typically has multiple activities, and the user flips back and forth

among them. As such, activities are the most visible part of your application.Activity

Manager is responsible for creating, destroying, and managing activities. For example,

when the user starts an application for the first time, the Activity Manager will create

its activity and put it onto the screen. Later, when the user switches screens, the Activity

Manager will move that previous activity to a holding place. This way, if the user wants to

go back to an older activity, it can be started more quickly. Older activities that the user

hasn’t used in a while will be destroyed in order to free more space for the currently active

one. This mechanism is designed to help improve the speed of the user interface and thus

improve the overall user experience.

see more :

http://eazyprogramming.blogspot.in/2013/03/activity-life-cycle-of-android.html

What is an Android apk format?

APK file is compressed AndroidManifest.xml file with the extension. Apk.

This android package file contains all of the files related to a single Android app.

This is the compressed collection of

manifest file
application code
resource files
and other files

What is an Intent ?

All the components are activated by a message called Intents. Intents bind individual components to each other at runtime, whether the component belongs to your application or another. An intent is created with an Intent object, which defines a message to activate either a specific component or a specific type of component—an intent can be either explicit or implicit, respectively.
An intent is an abstract description of an operation to be performed. Intents are send to the Android system via a method call, e.g. via the startActivity() method. They can be said as a message which allow android components to request functionality from other components.
see more :
http://eazyprogramming.blogspot.in/2013/05/intent-and-intent-types-explicit-intent.html

What are types of Intent ?
Explicit and Implicit Intents
see more :
http://eazyprogramming.blogspot.in/2013/05/intent-and-intent-types-explicit-intent.html

What are Intent Filters ?

Activities and intent receivers include one or more filters in their manifest to describe what kinds of intents or message they can handle or want to receive.An intent filters lists a set of requirements, such as datatypes,action requested and URI format that the intent or message must fulfil.

Explain Android Architecture?

see more :

http://eazyprogramming.blogspot.in/2013/05/android-architecture.html

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Judul: Interview Questions 1 -- 10
Ditulis oleh Unknown
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