Mobile Application Development Interview Preparation Guide
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Mobile Application Development Interview Questions and Answers will guide us now that Mobile application development is the process by which applications are developed for small low-power hand held devices such as personal digital assistants, enterprise digital assistants or mobile phones. These applications are either pre-installed on phones during manufacture, or downloaded by customers from app stores and other mobile software distribution platforms. Learn Mobile App Dev with this Guide

32 Mobile Application Questions and Answers:

1 :: What is the Mobile Application development all about?

In the last two years, a lot of innovation has come in the mobile computing world. Apple has launched very innovative mobile phone, iphone and ipad along with app store. Google launched Android in Nov 2007. Blackberry released SDK and app world. Microsoft has come up with phone 7 framework. Almost every type of mobile can be programmed using J2ME. Making applications for all these devices is Mobile application development.
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2 :: What is the demand of Mobile Application developers?

Desktop based IT application is present but the mobile is future. All the applications that were made to work only on desk top are being ported to mobile. In the coming 10 years, desktops will be replaced completely with mobile, and then all the applications will be designed mainly for mobile. The demand for mobile based trained engineers are increasing every year. Now after the launch of ipad by Apple, it will be even more. Therefore; the gextgen technology will be nothing else than mobile. The demand is expected to grow 70 folds in the coming 4 years.
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3 :: What is the future scope of Mobile Application developers?

Future of the mobile application development is bright
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4 :: How much does mobile application development cost?

That is a bit like asking: How much does a truck cost? The answer is that it depends on the truck. Your needs are unique and your app needs to meet only those needs. A small Toyota will cost a lot less than a huge semi tractor trailer. A tractor trailer is great if you want to haul goods across the country but dont try to take it on a Saturday night date. We help you to avoid creating too much - or too little app. This keeps costs low.

Having us create a custom smartphone app is surprisingly affordable. Many businesses find their app costs less than even a small radio or newspaper campaign. Unlike a radio campaign, the app’s usefulness does not end with the last commercial. Once it is created an app can add to your bottom line for a very long time. Our goal is to connect your audience with your cash register no matter where they are. With a smartphone app you give your customers access to you at the exact moment their buying decision is the strongest.
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5 :: Are there monthly fees to your mobile application development services?

It depends, No this is one of the great things about an app. Once it is built and in the app store your costs are done. There is no monthly fee for maintaining an app in the App Store.
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6 :: How long does it take to build an app?

Depending on the complexity and how quickly you respond to us you could have an app built in about a month.
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7 :: Are there any rules for what I can do?

Yes! Every app needs to go through an approval process. That process looks for viruses, pornography, hate speech and a few other things. We can guide you on what is likely to be approved and what is not likely to be approved.

Most applications are approved without a problem. If you are simply promoting your business, displaying products or services, gathering orders or directing users to your location you should be fine.
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8 :: How to avoid ANR status?

Android allows the system to protect the applications that are not responsive for a period of time by displaying a status called as ANR (Application not responding). Methods should use the main thread for work, as it takes long time for the main thread to complete the task. The work should be divided and another thread named as child thread be used for executing more tasks, as it takes less time. Main thread should provide a handler for child threads to post back upon completion.
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9 :: What are the file features used in android?

Android is rich in file features and it provides lots of variations in them as well. The file features are as follows:
Intent filters:
Includes bundle of information which describes a desired action.
Icons and Labels:
Includes information for small icon and a text label that can be displayed to users. These are set for an intent filter and are used to represent a component which fulfills the function advertised by the filter.
Permissions:
It is a restriction or limitation access to a part of code or data on the device. It is given as:-android.permission.CALL_EMERGENCY_NUMBERS
Libraries:
It includes the basic packages for building and developing applications.
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10 :: How does the AOSP relate to the Android Compatibility Program?

AOSP stands for Android Open-source project that maintains Android software and keep track of the new versions. It can be used for any purpose including the devices that are not compatible with other devices. It is related to the Android Compatibility Program as it defines the implementation of Android that is compatible with the third party apps.
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