When it comes to developing Android apps, it's impossible to overestimate the value of planning.
In this chapter, we looked at how to translate the high-level plans that we made in the previous chapter into actual screen designs. We created quick paper wireframes, and then used them as the basis for detailed digital wireframes complete with content and copy. Finally, we created paper prototypes and looked at how usability testing can help you refine your screen designs, making them the best they can possibly be. In the next chapter, we'll look at how to create more complex and polished digital prototypes using Android Studio and the Android SDK.
If this chapter was your first taste of wireframing and prototyping, then you may still be feeling overwhelmed, but the important thing to remember is that as long as you're doing some form of wireframing and prototyping, then you're already doing much more planning than you were before.
The only word of warning is don't invest too much time...