Part 3: Reformatting Code

Clean. Nice. Neat.

Android Developers often work with code, and lots of it. When writing lots of code, it's important for it to be understandable by humans. After all, we're all humans, and chances are that someone else will at some point look at your code. And you want it to look well-formatted. How can we do that?

Windows & Linux: Control+Alt+L

Take code from this:

package com.example.listoffriends

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        setSupportActionBar(toolbar)
val friends = mutableListOf<Friend>()
for (i in 1..100) {
    friends.add(Friend("Daniel", "Malone", 25))
}
    }
}

...to this:

package com.example.listoffriends

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        setSupportActionBar(toolbar)
        val friends = mutableListOf<Friend>()
        for (i in 1..100) {
            friends.add(Friend("Daniel", "Malone", 25))
        }
    }
}

This keyboard shortcut manages spacing and indentation. Make use of it!