Learn how to debug your Android application as it is the single most important skill for any developer. Android Studio provides a debugger that allows you to do so many important things.
Know about the navigations, tasks, and back stack. Android Activities are the logical construct of the screens that we want a user to navigate through. The relation that each Activity holds with respect to others is very crucial for a good user experience.
Understanding the Context In Android Application. To develop a better Android app, we must know what context is? Context is almost everywhere in Android Development and it is the most important thing in Android Development, so we must understand to use it correctly.
Learn about threading in detail. As the Java Virtual Machine allows an application to have multiple threads of execution running concurrently. We must know how to take advantage of a multi-threading environment correctly.
Learn how to handle the configuration changes. Some device configurations can change during the runtime such as screen orientation, keyboard availability, and when the user enables multi-window mode. We must know how to handle these changes.
Holding reference of objects that are not required anymore is a bad practice, freeing object’s reference after being served is helpful for the garbage collector to kill that object, that eventually helps yourself in memory leaks issues. If you keep objects reference unnecessarily, it only leads to memory leaks. Learn how to detect and fix the memory leaks in the Android application.
Learn about the performance patterns in Android applications. How to improve the performance of your application.
Understand Bitmaps. As it takes a huge amount of memory, can lead to OOM easily. Users love content! Especially when the content is well-formatted and looks nice.
Learn about Android Jetpack. It is built to make app development fast. It is the next generation of Android components that brings together the benefits of the support library, backward compatibility and immediate updates to a larger set of components. Android Jetpack manages activities like background tasks, navigation, and lifecycle management, so you can eliminate boilerplate code and focus on what makes your app great.