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Android Build an Interactive Story App Finishing the User Interface Customizing a Button

Posted by Jorge Ponce
Jorge Ponce
2,252 Points

Now add the attribute to change the color of the button text to white. Use the system value or the appropriate hex color

Now add the attribute to change the color of the button text to white. Use the system value or the appropriate hex color code. (Don't forget the "ff" alpha code at the beginning!)

activity_main.xml 
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:id="@+id/thrustButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/thrust_label"
            android:background="#ffaa0000"
            android:textColor="ffffff"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

2 Answers

Marco Fregoso
Marco Fregoso
379 Points
Marco Fregoso
Marco Fregoso
379 Points

This is the code that passes the challenge

<Button
        android:id="@+id/thrustButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/thrust_label"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:background="#ffaa0000"
        android:textColor="#ffffffff"/>

It looks like you're missing the 2 f's at the beginning of the hex value for the alpha value. Hope that helps.

Jorge Ponce
Jorge Ponce
2,252 Points
Jorge Ponce
Jorge Ponce
2,252 Points

why i put the color white and this said no no no error why?