Interview Questions.

Question 1. What Is Cordova?

Answer :

Cordova is also called as Phone Gap. It is a platform to increase Mobile Applications the use of the coding languages like HTML5, CSS, and JavaScript.

In other words, it acts as a processor for going for walks a web utility written in HTML, CSS, JavaScript. Many common Web applications are unable to use the native device functionality like Camera, GPS, Contacts and so on.

With the assist of Cordova, we can very much acquire the characteristic and package deal of the web utility within the gadgets installer layout.

Question 2. Explain The Mechanism Of Cordova?

Answer :

Cordova utility’s person interface is technically and effectively a webview that engages the complete display and runs inside the native field. So, essentially, it's miles the identical webview that the native running system is using.

Therefore, it method that an most effective a local field gets changed according to the working gadget and internally the internet pages continue to be the identical. Since the web browser relinquishing the internet pages vary from one working device to other.

UIWebView magnificence is for iOS android.Webkit.Webview is for android, WebViewClass is for home windows.

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Question 3. What Does Operating Systems It Support?

Answer :

All predominant systems are supported. Here is the list of the principal structures:

Amazon Fire OS
BlackBerry 10
Android
Firefox OS
Ubuntu
Windows 8
iOS
Windows Phone
Tizen
Before growing any platform indexed above, the consumer has to install the Cordova’s command line Interface (CLI).

Question four. Explain What Are The Limitations Of Cordova?

Answer :

The Cordova comes with both benefits in addition to drawbacks.

The barriers of Cordova are:

The Hybrid packages are slower than native ones so it is not a awesome idea to apply Cordova for big applications that want masses of statistics and functionality.
The Cross-browser compatibility can create plenty of problems. Most of the time we're developing apps for one-of-a-kind structures, so the checking out and optimization can take plenty of time and effort as we want to cover a large quantity of gadgets and OS.
Some plugins additionally have compatibility issues with the varying gadgets and platforms. There are also native APIs that aren't yet supported by means of Cordova.PhoneGap Build: It is a cloud-based service built on pinnacle of the PhoneGap framework.
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Question five. What Are The Device Installer Formats?

Answer :

The device installer codecs also vary from one running system to other.

The tool installer codecs for some running systems are:

Android – .Apk (Android Application Package)
IOS – .Ipa (iPhone Application Archive)
Windows Phone .Xap (Silverlight Application Package)
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Question 6. What Can You Say About Phonegap And Cordova?

Answer :

PhoneGap and Cordova are same and in reality, the Apache Cordova may be considered as an engine that powers PhoneGap, like how Webkit is an engine that powers Chrome. Both of them belong to the identical area.

Question 7. What Are Cordova Events?

Answer :

Cordova events are an pastime performed. There are numerous events that may be used in Cordova tasks.

DeviceReady: This occasion is caused whilst the Cordova gets completely loaded. This also enables to get confirmed that no Cordova functions are known as before it's miles absolutely loaded.
Pause: This occasion is induced while the utility is placed into the history.
Resume: This event is prompted while the application is lower back from the background.
Backbutton: This event is caused while the backbutton receives pressed.
Menu button: This occasion is precipitated while the menu button gets pressed.
Search button: this event is triggered whilst the quest button on Android is pressed.
Startcall button: This occasion is triggered when the startcall button receives pressed.
Endcall button: This event is brought about when the endcall button gets pressed.
Volumedown button: This event is prompted while the volumedown button receives pressed.
Volumeup button: This occasion is prompted when the volumeup button receives pressed.
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Question eight. What Is Cordova Plugman?

Answer :

Cordova plugman is a command line device that is used for installing and coping with plugins.

The person have to use plugman if the person needs the software to run on one specific platform.

If the user wants to create a go-platform app, then it must use Cordova-cli that can adjust plugins for unique systems.

Question 9. What Are The Features Of Cordova?

Answer :

Command Line Interface (Cordova CLI):

Comand Line Interface is the tool that can be used for beginning the initiatives, growing the approaches for one-of-a-kind structures, putting in plugins and many different beneficial matters that make the improvement system less complicated.

Cordova center components:

Cordova offers set of center additives that each cellular software requires. All those components are used for growing the bottom of the utility.

Cordova Plugins:

It presents API (Application Programming Interface) to be able to be used for imposing native mobile features to our JS app.

Licence:

Cordova is licensed under the Apache License, version 2.Zero. Apache and the Apache feather logos are the trademarks of The Apache software basis.

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Question 10. What Are The Advantages Of Cordova?

Answer :

Cordova functions many benefits to the customers.

Below are the blessings of Cordova:

Cordova gives one platform for developing hybrid cellular programs. The person can broaden one application to be able to be used on different mobile systems like IOS, Android, home windows smartphone, Amazon-fireos, blackberry, Firefox OS, Ubuntu, and tizien.
Cordova is faster to construct hybrid software then its local application. So, Cordova can save numerous time.
Using JavaScript while operating with Cordova, the person does no longer need to analyze platform precise programming languages.
There are massive amounts of community add-ons that may be used with Cordova. Lots of libraries and frameworks are optimized for running with it.
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Question eleven. Explain Phonegap Architecture?

Answer :

PhoneGap has a plugin-based totally architecture. Each device-unique feature is a plugin, which includes javascript and native sides. Js facet need to be as cross-platform as possible, while local side may be carried out only once, for 1 device. Nevertheless built-in plugins are developed for all the most popular structures, so no need to reinvent the wheel.

This architecture, collectively with open source code, not best allows a developer to fix their bugs, but additionally permits them to tweak their plugins for as consistent with necessities. Also, a developer can build his very own plugin, and guide any platform of his preference.

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Question 12. What Is The Difference Between Phonegap And Cordova?

Answer :

PhoneGap is a distribution of Apache Cordova. You can consider Apache Cordova because the engine that powers PhoneGap, much like how WebKit is the engine that powers Chrome or Safari.

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Question 13. How Phonegap Simplifies Mobile Application Development?

Answer :

Mobile improvement is a huge task. When we attempt to build packages for every device--iPhone, Android, Windows Mobile, we require exceptional frameworks and languages.

Till the time, the large players in cellular might also decide to work collectively and unify 0.33-birthday celebration app improvement methods, we can use PhoneGap with a view to use standards-primarily based internet technologies to bridge net applications and other cellular devices. Also, on account that PhoneGap apps are standards compliant, they may be future-proofed to work with browser.

PhoneGap is an open supply implementation of open standards. That approach builders and groups can use PhoneGap for cellular programs which are free, industrial and open supply.

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Question 14. Explain What Is The Best Way For Phonegap Developers To Handle Device-unique Needs?

Answer :

It all depends on the function set. Most mobile packages don’t need many tool-unique features aside from the user interface, however there are numerous plugins which can be very beneficial. The quality way is to decide what features you need and to apply handiest those precise capabilities. There are many packages which have permissions turned on although they are not required.

Question 15. Name Some Of The Limitations Of Phonegap?

Answer :

Complex games, intensive photos. Use OpenGL for that, no longer PhoneGap.
For slower telephones (not iPhone, not Nexus One, no longer Xperia X10), PhoneGap apps the use of the latest interactive Google Maps APIs tend to be sluggish. Static maps OK, although.
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Question sixteen. What Are The Phonegap Supported Platforms?

Answer :

iPhone / iPhone 3G and Higher
Blackberry OS 5.X and Newer
Android
Web OS
Tizen
Windows Phone 7
Symbian
Bada
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