When we find ourselves in need of an Android app developer, there is a wide range of questions that must be asked. This is especially true of those who do not work in Android app development. Fortunately, this helpful guide is here to remove all of the guesswork from the process.
Looking to hire an Android app developer? Unsure of the Android-related questions that need to be asked? If so, this primer will provide the information necessary. This is the sort of challenge that requires the correct preparation. Don’t mistake of trying to hire an Android app developer without asking the following questions:
1. How Can ‘Application Not Responding’ Errors Be Avoided?
These are the types of errors that Android users would prefer to avoid. Top-notch Android app development is all about steering clear of these errors. Don’t hire an Android app developer who is unclear on this matter. There is a golden rule when it comes to Android threading that needs to be observed.
This is the client’s chance to make sure that the Android app development team from app development companies is fully aware. The main thread should remain untouched from an operational standpoint. No intensive operations need to be taking place there.
2. Can Custom Views Be Created?
Since this topic tends to be fairly complex, this is a chance to find out more about the Android app development team’s level of experience. If the company cannot offer an overview that allows a client to learn everything that they need to know, this is a sign that the interview process needs to be continued elsewhere.
Meanwhile, the app developer needs to be making a few things perfectly clear when this question is asked. The View class is not going to be expanded in most instances. The View should always bear a close resemblance to the customized component. This is non-negotiable.
3. How Will View Usage Become Optimized?
The best app developers are able to provide helpful explanations as to how View usage is going to be optimized. For example, the client should be taking the time to ask additional questions about excessive overdraw and the Hierarchy Viewer tool. These options must be enabled on all Android apps.
How long is it going to take for the layout and measuring phases to be completed? What about the draw phase? Does the developer have the ability to measure how long these processes are going to take? These are all questions that a client will need to provide answers before any hiring decisions are made.
4. What About The Handler?
The Handler is a key aspect of any Android app and the best developers can offer all of the necessary information on this topic. When communication takes place between threads, the Handler is used. Actions that are being passed between threads on an Android device are reliant on the Handler.
For example, let’s say that an action must be passed to the main thread of the Android from a background thread. Without Handler, this task becomes far more difficult. The best developers inherently understand the concept of multithreading and do not need to have these things explained.
5. When Can a FrameLayout Be Used?
This is a great way to learn more about the Android app developers’ philosophy when it comes to layouts. The best developers are able to listen to the needs of the client and provide them with access to the top layouts. As far as layouts are concerned, a client should never be steered towards anything that is unnecessarily complicated.
The best apps provide a layout that is as simple as possible. The client lets the app developer know what they are looking to achieve and from there, they are matched with the layout that best meets their needs. If overlapping views are required, this is when a FrameLayout is going to come in handy.
6. How Is Data Accessed In a ContentProvider?
Is the Android app going to have all of the permissions that are needed? Read access permissions are a crucial part of the equation. The main thread is often blocked by these types of requests and that is why the developer should be willing to provide all pertinent information in this regard.
If the developer is not preaching to the client about the importance of making sure that the main thread is never blocked, this is a red flag. The accessing of data is one of the most common causes of the main thread blockage. Data queries must be performed on separate threads at all times and this is something that the developer should also strongly believe in.
7. What Do We Need To Know About An Adapter?
The developer of an Android must have a strong understanding of this topic as well. When an AdapterView needs to be connected to a data source that is external, additional components are required. Think of the Adapter that is going to be used as a bridge of sorts. This is a bridge that must be properly constructed as early as possible.
Otherwise, the finished app is not going to perform in the manner that it is supposed to. Android app development is all about taking the time to prepare for every possible issue that could occur along the way. Thanks to the Adapter, data entries are more easily converted into Views. Once they have been converted, they are easily added to the AdapterView.