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Android Build a Simple Android App with Kotlin Improving Our Code Adding Colors

Herman Vicens
Herman Vicens
12,540 Points
Posted by Herman Vicens
Herman Vicens
12,540 Points

Unknown

Don;t know whats wrong here.

MealActivity.kt 
import android.app.Activity
import android.os.Bundle
import android.widget.TextView
import android.widget.RelativeLayout

class MealActivity : Activity() {
  override fun onCreate(savedInstanceState: Bundle) {
    super.onCreate(savedInstanceState)

    setContentView(R.layout.activity_meal)

    val foodLabel = findViewById(R.id.foodTextView) as TextView
    val drinkLabel = findViewById(R.id.drinkTextView) as TextView
    val mealLayout = findViewById(R.id.mealLayout) as RelativeLayout
    mealLayout!!.setBackgroundColor(Color.RED)
    foodLabel!!.setBackgroundColor(Color.BLUE)
    drinkLabel!!.setBackgroundColor(Color.GRAY)

  }
}