Read work challenge background color from device policy

Call into DevicePolicyManager to retrieve the background color that
should be used for the work challenge on the user whose credential
screen we're about to show.

Change-Id: I612dd96020ce8932b49b21e6ff6faaddd39f957d

src/com/android/settings/ConfirmDeviceCredentialBaseFragment.java

@@ -21,11 +21,13 @@ import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
 import android.app.ActivityOptions;
 import android.app.IActivityManager;
+import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentSender;
 import android.graphics.Point;
 import android.graphics.PorterDuff;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.os.RemoteException;
@@ -92,7 +94,7 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
                         getActivity(),
                         getActivity().getIntent().getExtras()));
         if (Utils.isManagedProfile(UserManager.get(getActivity()), credentialOwnerUserId)) {
-            setWorkChallengeBackground(view);
+            setWorkChallengeBackground(view, credentialOwnerUserId);
         }
     }
 
@@ -170,7 +172,10 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
         }
     }
 
-    private void setWorkChallengeBackground(View baseView) {
+    private void setWorkChallengeBackground(View baseView, int userId) {
+        DevicePolicyManager dpm = (DevicePolicyManager) getActivity().getSystemService(
+                Context.DEVICE_POLICY_SERVICE);
+        baseView.setBackground(new ColorDrawable(dpm.getOrganizationColorForUser(userId)));
         ImageView imageView = (ImageView) baseView.findViewById(R.id.background_image);
         if (imageView != null) {
             Drawable image = getResources().getDrawable(R.drawable.work_challenge_background);