Selecting an app-navigation pattern

Let's imagine that one day you wake up feeling inspired; you have an idea for an app that you believe can become more popular than WhatsApp. Without losing time, you would want to turn this app idea into reality! This is why it's important for you to learn how to design an app and choose the most appropriate navigation pattern. Not to sound uninspiring, but you'll find that 99 percent of your ideas will already be on Google Play Store. It's simply a fact that there are hundreds of thousands of apps available, and the number is always increasing! So, you can either decide to improve upon the already existing ones or keep brainstorming until you have something original.

In order to make the app a reality, the first step is to visualize the app in your mind; for this, we need to identify the basic components. We need to simplify the idea on screen, and we need to move between screens.

Bear in mind that you are creating this app for Android...