What can you learn before you have an Android phone?

Use an emulator, a virtual Android phone on your computer, to check the first screen at different device sizes. A physical device gives you a separate check for things such as how the app feels in a hand or works with the device’s hardware.

What does the setup wizard install?

It can install the Android software development kit, the pieces that let the editor build your app for Android. Check the system requirements for the editor and the higher requirements for running the emulator. Keep the project’s source and build settings together, including its Gradle files that tell Android Studio how to assemble it.

What is the difference between running and releasing the app?

A local run builds and installs a test version on the device you selected. A Google Play release uses a separately prepared signed build and the Play Console. An Android App Bundle is used for that release workflow. Keep a copy of the project itself so you can make the next change.

Can you still read and tap the button with larger text?

Check whether a Confirm booking button stays readable on a small Android screen after you increase the text size. Use a local toy app in the emulator or sketch both sizes.

Create a fictional one-screen example
Use a fresh local project with a label and a button named Confirm booking. The button only changes the visible label to Confirmed.
Compare the two text sizes
On a small virtual phone, compare the default font size with a larger system font. The button should still be readable, with room to wrap if needed.
Check the visible outcome
Tap the button and look for the whole Confirmed label. If text clips, give it more vertical space and repeat the same check.