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Android Build a Simple Android App with Kotlin Testing and Debugging Writing to the Log

Posted by Cindy Michalowski
Cindy Michalowski
9,405 Points

I cannot get the correct answer for Part 2, but I'm not sure why...

Part 2 of this challenge asks me to use a method to get the activity name instead of hard coding it. Following the example from the FunFacts project, I entered the following" val TAG = TreehouseActivity::class.simpleName

I get the following error: Bummer! TreehouseActivity.kt:10:11: error: type mismatch: inferred type is String? but String was expected Log.d(TAG, "Activity created!")

The instructions seems to suggest that we should call something like, TreehouseActivity.class.getSimpleName(). This is not how the logging was done in the example, and it throws an error when I try this approach in the FunFacts project. Am I making a silly mistake here, or is there something wrong with the challenge?

TreehouseActivity.kt 
import android.app.Activity
import android.os.Bundle

class TreehouseActivity : Activity() {
  val TAG = TreehouseActivity::class.simpleName

  override fun onCreate(savedInstanceState: Bundle) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_treehouse)
    Log.d(TAG, "Activity created!")
  }
}