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Start your free trialEdwin Rozario
2,922 Points<Button android:textColor="#ffffff" /> not working for challenge
I am at the challenge https://teamtreehouse.com/library/build-an-interactive-story-app/finishing-the-user-interface/customizing-a-button
and
android:textColor="#ffffff" dosent seem to be working.
Error! Make sure you are using the right color code for white.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/thrustButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="@string/thrust_label"
android:background="#ffaa0000"
android:textColor="#ffffff"/>
</RelativeLayout>
3 Answers
Jon Kussmann
Courses Plus Student 7,254 PointsHi Edwin,
It looks like you forgot the "alpha" value when setting your text color. You should have 8 "f's"
Edwin Rozario
2,922 PointsThanks John
But even 3 f's seems to work in my local.
Jon Kussmann
Courses Plus Student 7,254 PointsYes, 3/6 values for a hex color will work in practice.
The 6 "digit" hex color does not specify an alpha value so will (I believe) default to completely opaque, or ff.
The 3 "digit" hex color is a shorthand way of specifying a 6 "digit" hex color if each pair of values is the same. For example: #AABBCC can be put as #ABC.
However, if you want the specific color #A1B23C, you have to use all 6 "digits" and cannot shorten it.
The exercise wanted you to explicitly set an alpha value (said so in the question), which is why it was needed for a correct answer.
Edwin Rozario
2,922 PointsThanks John