If an Android app development company is looking to find the top developers, the process of locating top notch candidates is not always easy. This is true of any company and it does not matter what type of reputation they have built for themselves. Even the most experienced companies still need to ask the right questions to find the right Android app development professionals.
Knowing what to ask for can be challenging. A company that does not wish to waste time and effort will definitely want to read on and learn more about the following questions. These ten queries are going to form the backbone for any major interview that takes place.
Do You Understand The Difference Between Implicit and Explicit Intent?
Each form of intent is going to become pivotal when this project is taking place and in order to get the most out of an Android app development professional, it is important to find out more about their level of understanding. Explicit intent is all about telling the system more about the way you wish it would perform. Implicit intent is when the action is declared and the system components must be able to handle this action.
What Do You Know About Layouts?
In most instances, it behooves an app development firm to use the simplest layout that is available. Simplicity is key in these instances. The last thing that a company wants to do is place their target audience in a position where they are forced to make unnecessary decisions. An app should be designed in a manner that makes life easier for the user. If the layout is too complicated, the level of success that the company achieves is more limited.
Are You Familiar With Handler?
Handler is a key tool that is going to be utilized during the development process and Android app development professionals should have a strong level of awareness as to what it can and cannot do. In order for actions to be passed from a background thread into the main thread of the Android, Handler must be used. Do not make the mistake of hiring a prospective developer who does not have a strong grasp of this tool.
How Will View Usage Be Optimized?
There are a wide range of methods that can be used and the Android app development candidate should be able to explain all of them in the proper detail. The two methods that usually have the highest level of impact are the flattening of the view hierarchy and checking for any excessive overdraw. Ask for a detailed explanation of both methods so that you can gauge the developer's level of experience early on.
Can You Outline The Custom View Creation Process?
The level of complexity that this topic requires allows Android app development firms to weed out the potential candidates that are not up to snuff fairly quickly. The View class is not going to be expanded in most instances and the View should be subclassed in a manner that resembles the custom component that the firm is looking to create. If the developer is looking to expand the View class, this a sign of inexperience.
How Can We Prevent Errors Where The Application Refuses To Respond?
This is one of the most common errors that is going to take place when an Android app is being created. That is why you need a developer who truly understands this question. There is one rule that needs to be followed during Android app development above all others: do not hire a developer that is going to perform a series of operations on the main thread. To avoid these types of errors, the work should be moved away from the main thread as much as possible.
Can You Tell Us More About The Adapter?
When it comes to checking up on the developer's level of knowledge, there are few things that you need to know about them. What do they know about the components that are needed to connect to AdapterView? Are they aware of the data source that will be affected and can they use Adapter as the bridge? Do they know how to convert each entry into the proper view? These are all questions that must be asked.
What Do You Know About ThreadPool?
If an app developer needs to run multiple parallel instances of any task in particular, ThreadPool is going to take on a greater level of importance. Since this is a skill that is going to be required to finish the Android app development project, the developer needs to know as much as possible about multi threading. This tactic may seem like a no brainer but will affect the app's performance if it is not being used in the correct manner. Be sure to bear this in mind.
What If The Thread Class Is Not Going To Be Used?
There are going to be app development projects where the Thread class is not going to be used for multi threading purposes. The implementation of Runnable is needed in these moments. Having a developer who clearly understands both options is crucial. The developer should have a strong understanding of when a class actually needs to be extended from. If functionality needs to be modified, you need an experienced developer who understands the nuances.
When Does a Fragment Need To Be Used?
This is one of the topics that could be the subject of a good natured debate. Some believe that an Activity should be used and others believe that a Fragment is best. This is the sort of question that lets you know exactly what the developer is made of. There are certain facts that they should understand on an internal level. If the whole screen needs to be swapped out, an Activity is usually the best choice. In most other instances, a Fragment is in your best interests.
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