Today, I opened a very old project for a quick update. After upgrading the support libraries, gradle plugins and other tools, I saw this strange issue for the first time. The app was building and running successfully, but when I opened any code file, I was getting huge list of compile errors mostly about Unresolved Reference etc. Initially, I cleaned project, rebuild it, restarted Android studio few times, but couldn’t fix it.

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When debugging apps, we sometimes start putting logging statements all over the code to figure out what’s going on. class MainActivity : AppCompatActivity() { lateinit var retrofit: Retrofit override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) setupToolbar() Log.d("MyApp", "Toolbar Set") initRetrofit() Log.d("MyApp", "Retrofit Initialized") var myButton = findViewById<Button>( myButton.setOnClickListener { Log.d("MyApp", "My Button Clicked") } Log.d("MyApp", "Activity Creation Done!") } } That works, but it happens that we forget to remove the logs before committing, and they either get flagged in the code review, or they’re still there when we release.

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Code completion can improve your productivity by reducing how much you have to type, but there are situations when a more powerful tool is needed. Thanks to Android Studio and IntelliJ, live templates make it much easier to focus on just the things you care about. You guessed it right. I am talking about Live Templates. For example, to show a simple Toast in android apps, we use something like this:

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Wajahat Karim

Android Developer. Open Source Contributor. Writer. Speaker

Senior Android Developer

Karachi, Pakistan