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Start your free trialGwynneth Gwara
3,515 PointsChallenge Task 1 of 1 Let's continue to add color to MealActivity. In the onCreate() method, set the te
Let's continue to add color to MealActivity. In the onCreate() method, set the text color of foodLabel to Color.BLUE. Then set the text color of drinkLabel to Color.GRAY.
Getting this error
Bummer: MealActivity.kt:16:1: error: assignments are not expressions, and only expressions are allowed in this context foodLabel.TextView = Color.BLUE. ^ MealActivity.kt:16:11: error: unresolved reference: TextView foodLabel.TextView = Color.BLUE. ^ MealActivity.kt:17:5: error: unresolved reference: drinkLabel drinkLabel.TextView = Color.GRAY
MealActivity.kt
import android.app.Activity import android.os.Bundle import android.widget.TextView import android.widget.RelativeLayout ā class MealActivity : Activity() { override fun onCreate(savedInstanceState: Bundle) { super.onCreate(savedInstanceState) ā setContentView(R.layout.activity_meal) ā 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.backgroundColor = Color.RED foodLabel.TextView = Color.BLUE. drinkLabel.TextView = Color.GRAY } }
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.backgroundColor = Color.RED
foodLabel.TextView = Color.BLUE.
drinkLabel.TextView = Color.GRAY
}
}
3 Answers
Karen Fletcher
19,189 PointsMuch like the mealLayout.backgroundColor = Color.RED
is setting the color of the background of the RecyclerView, you want to set the color of the text for the foodLabel
and drinkLabel
TextViews. Try using .textColor
instead. And double check the extra dot you have after Color.BLUE
, otherwise the compiler will be looking for another call to chain.
thanh van giang
376 Pointshi, my code is wrong and I don't know why! Please help me out!
public class MealActivity extends Activity {
public TextView foodLabel;
public TextView drinkLabel;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_meal);
foodLabel = (TextView) findViewById(R.id.foodTextView);
drinkLabel = (TextView) findViewById(R.id.drinkTextView);
RelativeLayout mealLayout = (RelativeLayout) findViewById(R.id.mealLayout);
mealLayout.setBackgroundColor(Color.GREEN);
foodLabel.setTextColor(Color.BLUE);
drinkLabel.setTextColoe(Color.GRAY);
}
}
thanh van giang
376 Pointsoh I got it! Typo "Coloe", should be Color!
Gwynneth Gwara
3,515 PointsGwynneth Gwara
3,515 PointsThank you Karen :)