Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Android Build a Simple Android App with Java Creating the Screen Layout Setting Colors

rasum rajan
rasum rajan
160 Points
Posted by rasum rajan
rasum rajan
160 Points

how to solve error android resource linking failed

when i run the program than "Android resource linking failed" error comes.

activity_main.xml 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@android:color/#fff092b0" 
               >

  <TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:text="Treehouse loves me!"
    android:textSize="72sp"
             android:textColor="@android:color/white"
  />
</RelativeLayout>

1 Answer

Lauren Moineau
Lauren Moineau
9,483 Points
Lauren Moineau
Lauren Moineau
9,483 Points

Hi Rasum. There are a few ways to use colours in XML:

  • using one of the pre-defined colours from the Android system. For example: android:textColor="@android:color/white"
  • using the hex colour codes. For example android:textColor="#fff092b0"(although hardcoding values is not best practice, better use the next option)
  • using the colors.xml resource file, just as we use the strings.xml resource file instead of hardcoding strings. For example: android:textColor="@color/primaryColor"

I hope that helps you complete the challenge :)