Uses recycler view to add a line at the top in the intro

Also, adjusts the divider insets as appropriate for settings and setup
wizard.

bug:27591940
Change-Id: I7aeefd6d1bfe94c97f686e81bc045d31e878655f

res/layout/fingerprint_enroll_introduction.xml

@@ -15,7 +15,7 @@
     limitations under the License
 -->
 
-<com.android.setupwizardlib.SetupWizardItemsLayout
+<com.android.setupwizardlib.SetupWizardRecyclerLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/setup_wizard_layout"
     android:layout_width="match_parent"

src/com/android/settings/fingerprint/FingerprintEnrollBase.java

@@ -95,8 +95,7 @@ public abstract class FingerprintEnrollBase extends InstrumentedActivity
     }
 
     protected void setHeaderText(int resId, boolean force) {
-        TextView layoutTitle = (TextView) getSetupWizardLayout().findViewById(
+        TextView layoutTitle = getSetupWizardLayout().getHeaderTextView();
-                R.id.suw_layout_title);
         CharSequence previousTitle = layoutTitle.getText();
         CharSequence title = getText(resId);
         if (previousTitle != title || force) {

src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java

@@ -41,15 +41,16 @@ import com.android.settings.ChooseLockGeneric;
 import com.android.settings.ChooseLockSettingsHelper;
 import com.android.settings.HelpUtils;
 import com.android.settings.R;
-import com.android.setupwizardlib.SetupWizardItemsLayout;
+import com.android.setupwizardlib.SetupWizardRecyclerLayout;
+import com.android.setupwizardlib.items.IItem;
 import com.android.setupwizardlib.items.Item;
-import com.android.setupwizardlib.items.ItemAdapter;
+import com.android.setupwizardlib.items.RecyclerItemAdapter;
 
 /**
  * Onboarding activity for fingerprint enrollment.
  */
 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
-        implements AdapterView.OnItemClickListener {
+        implements RecyclerItemAdapter.OnItemSelectedListener {
 
     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
@@ -62,14 +63,18 @@ public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
         super.onCreate(savedInstanceState);
         setContentView(R.layout.fingerprint_enroll_introduction);
         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
-        final SetupWizardItemsLayout layout =
+        final SetupWizardRecyclerLayout layout =
-                (SetupWizardItemsLayout) findViewById(R.id.setup_wizard_layout);
+                (SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
-        layout.getListView().setOnItemClickListener(this);
+        final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
-        final ItemAdapter adapter = (ItemAdapter) layout.getAdapter();
+        adapter.setOnItemSelectedListener(this);
         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
         item.setTitle(LearnMoreSpan.linkify(
                 getText(R.string.security_settings_fingerprint_enroll_introduction_message),
                 getString(R.string.help_url_fingerprint)));
+        // setupwizard library automatically sets the divider inset to
+        // R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
+        // an inset within settings.
+        layout.setDividerInset(0);
         updatePasswordQuality();
     }
 
@@ -148,9 +153,8 @@ public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
     }
 
     @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+    public void onItemSelected(IItem item) {
-        final Item item = (Item) parent.getItemAtPosition(position);
+        switch (((Item) item).getId()) {
-        switch (item.getId()) {
             case R.id.next_button:
                 onNextButtonClick();
                 break;

src/com/android/settings/fingerprint/SetupFingerprintEnrollIntroduction.java

@@ -28,6 +28,7 @@ import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
 import com.android.settings.SetupChooseLockGeneric;
 import com.android.settings.SetupWizardUtils;
+import com.android.setupwizardlib.SetupWizardRecyclerLayout;
 import com.android.setupwizardlib.view.NavigationBar;
 
 public class SetupFingerprintEnrollIntroduction extends FingerprintEnrollIntroduction
@@ -60,6 +61,9 @@ public class SetupFingerprintEnrollIntroduction extends FingerprintEnrollIntrodu
         Button nextButton = getNavigationBar().getNextButton();
         nextButton.setText(null);
         nextButton.setEnabled(false);
+        SetupWizardRecyclerLayout layout = (SetupWizardRecyclerLayout) getSetupWizardLayout();
+        layout.setDividerInset(getResources().getDimensionPixelSize(
+                R.dimen.suw_items_icon_divider_inset));
     }
 
     @Override