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Cordova Interview Questions

Last Updated: May 05, 2021,
Posted in Interview Questions,
10 Questions
Cordova Interview Questions

Cordova is a platform that is used for mobile applications. Cordova/Apache Cordova and PhoneGap belong to the same domain but after the acquisition of PhoneGap by Adobe, it is again released as the Apache Cordova because it is licensed under Apache.

Mobile application developers are regular requirements of many companies, so the candidates with the knowledge of JavaScript, CSS and software development can try their luck in Cordova’s field. Below are some Cordova or hybrid mobile application interview questions that may help the candidate in cracking the interview.

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Below are the list of Best Cordova Interview Questions and Answers

Cordova is also called as Phone Gap. It is a platform to develop Mobile Applications using the coding languages like HTML5, CSS, and JavaScript.
In other words, it acts as a processor for running a web application written in HTML, CSS, JavaScript. Many typical Web applications are unable to use the native device functionality like Camera, GPS, Contacts etc.
With the help of Cordova, we can very much achieve the feature and package of the web application in the devices installer format.
Cordova application’s user interface is technically and effectively a webview that engages the entire screen and runs in the native container. So, basically, it is the same webview that the native operating system is using.
Therefore, it means that an only a native container gets modified according to the operating system and internally the web pages remain the same. Since the web browser relinquishing the web pages vary from one operating system to other.

UIWebView class is for iOS android.webkit.webview is for android, WebViewClass is for windows.

Also, Read PhoneGap interview questions and answers

All major platforms are supported. Here is the list of the major platforms:
  • Amazon Fire OS
  • BlackBerry 10
  • Android
  • Firefox OS
  • Ubuntu
  • Windows 8
  • iOS
  • Windows Phone
  • Tizen

Before developing any platform listed above, the user has to install the Cordova’s command line Interface (CLI).

The Cordova comes with both benefits as well as drawbacks.
The limitations of Cordova are:
  • The Hybrid applications are slower than native ones so it is not a great idea to use Cordova for large applications that need lots of data and functionality.
  • The Cross-browser compatibility can create lots of issues. Most of the time we are developing apps for different platforms, so the testing and optimization can take a lot of time and effort as we need to cover a large number of devices and OS.
  • Some plugins also have compatibility issues with the varying devices and platforms. There are also native APIs that are not yet supported by Cordova.
The device installer formats also vary from one operating system to other. The device installer formats for some operating systems are:
  • Android – .apk (Android Application Package)
  • IOS – .ipa (iPhone Application Archive)
  • Windows Phone .xap (Silverlight Application Package)
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PhoneGap and Cordova are same and actually, the Apache Cordova can be considered as an engine that powers PhoneGap, like how Webkit is an engine that powers Chrome. Both of them belong to the same domain.
Cordova events are an activity performed. There are various events that can be used in Cordova projects.
  • DeviceReady: This event is caused when the Cordova gets completely loaded. This also helps to get confirmed that no Cordova functions are called before it is completely loaded.
  • Pause: This event is caused when the application is put into the background.
  • Resume: This event is caused when the application is returned from the background.
  • Backbutton: This event is caused when the backbutton gets pressed.
  • Menu button: This event is caused when the menu button gets pressed.
  • Search button: this event is caused when the search button on Android is pressed.
  • Startcall button: This event is caused when the startcall button gets pressed.
  • Endcall button: This event is caused when the endcall button gets pressed.
  • Volumedown button: This event is caused when the volumedown button gets pressed.
  • Volumeup button: This event is caused when the volumeup button gets pressed.
Cordova plugman is a command line tool that is used for installing and managing plugins.
The user should use plugman if the user wants the application to run on one particular platform.
If the user wants to create a cross-platform app, then it should use Cordova-cli which can modify plugins for different platforms.

Read 20 Best Bootstrap interview questions 2018

Command Line Interface (Cordova CLI)
Comand Line Interface is the tool that can be used for starting the projects, developing the processes for different platforms, installing plugins and many other useful things that make the development process easier.
Cordova core components
Cordova provides set of core components that every mobile application requires. All these components are used for creating the base of the application.

Cordova Plugins

It provides API (Application Programming Interface) that will be used for implementing native mobile functions to our JS app.

License
Cordova is licensed under the Apache License, version 2.0. Apache and the Apache feather logos are the trademarks of The Apache software foundation.

Cordova features many benefits to the users. Below are the advantages of Cordova:
  • Cordova provides one platform for developing hybrid mobile applications. The user can develop one application that will be used on different mobile platforms like IOS, Android, windows phone, Amazon-Fireos, blackberry, Firefox OS, Ubuntu, and Tizien.
  • Cordova is faster to build hybrid application then its native application. So, Cordova can save a lot of time.
  • Using JavaScript while working with Cordova, the user does not need to analyze platform specific programming languages.
  • There are large amounts of community add-ons that can be used with Cordova. Lots of libraries and frameworks are optimized for working with it.

Also Read Related Cordova Interview Questions

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