Train selection now stays highlighted while action bar is showing (unusually difficult to pull off... wtf, Android SDK?)

res/layout/departure_listing.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:bart="http://schemas.android.com/apk/res/com.dougkeen.bart"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent" >
@@ -60,4 +60,4 @@
         android:layout_alignParentRight="true"
         android:layout_below="@id/topRow" />
 
-</RelativeLayout>
+</merge>

res/values/colors.xml

@@ -2,5 +2,6 @@
 <resources>
 
     <color name="black">#FF000000</color>
+    <color name="blue_selection">#FF2A7998</color>
 
 </resources>

src/com/dougkeen/bart/activities/ViewDeparturesActivity.java

@@ -29,7 +29,7 @@ import android.view.View;
 import android.view.WindowManager;
 import android.widget.AdapterView;
 import android.widget.ImageView;
-import android.widget.ListAdapter;
+import android.widget.ListView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
@@ -172,20 +172,19 @@ public class ViewDeparturesActivity extends SherlockFragmentActivity implements
 			}
 		}
 		setListAdapter(mDeparturesAdapter);
-		getListView().setEmptyView(findViewById(android.R.id.empty));
-		getListView().setOnItemClickListener(
-				new AdapterView.OnItemClickListener() {
-					@Override
-					public void onItemClick(AdapterView<?> adapterView,
-							View view, int position, long id) {
-						mSelectedDeparture = (Departure) getListAdapter()
-								.getItem(position);
-						if (mActionMode != null) {
-							mActionMode.finish();
-						}
-						startDepartureActionMode();
-					}
-				});
+		final ListView listView = getListView();
+		listView.setEmptyView(findViewById(android.R.id.empty));
+		listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
+		listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+			@Override
+			public void onItemClick(AdapterView<?> adapterView, View view,
+					int position, long id) {
+				mSelectedDeparture = (Departure) getListAdapter().getItem(
+						position);
+				view.setSelected(true);
+				startDepartureActionMode();
+			}
+		});
 
 		findViewById(R.id.missingDepartureText).setVisibility(View.VISIBLE);
 
@@ -275,9 +274,8 @@ public class ViewDeparturesActivity extends SherlockFragmentActivity implements
 				+ mDestination.name);
 	}
 
-	@SuppressWarnings("unchecked")
-	private AdapterView<ListAdapter> getListView() {
-		return (AdapterView<ListAdapter>) findViewById(android.R.id.list);
+	private ListView getListView() {
+		return (ListView) findViewById(android.R.id.list);
 	}
 
 	private final ServiceConnection mConnection = new ServiceConnection() {
@@ -487,7 +485,8 @@ public class ViewDeparturesActivity extends SherlockFragmentActivity implements
 	}
 
 	private void startDepartureActionMode() {
-		mActionMode = startActionMode(new DepartureActionMode());
+		if (mActionMode == null)
+			mActionMode = startActionMode(new DepartureActionMode());
 		mActionMode.setTitle(mSelectedDeparture.getTrainDestinationName());
 		mActionMode.setSubtitle(mSelectedDeparture.getTrainLengthText());
 	}
@@ -531,6 +530,8 @@ public class ViewDeparturesActivity extends SherlockFragmentActivity implements
 
 		@Override
 		public void onDestroyActionMode(ActionMode mode) {
+			getListView().clearChoices();
+			getListView().requestLayout();
 			mActionMode = null;
 		}
 

src/com/dougkeen/bart/controls/DepartureListItemLayout.java

@@ -0,0 +1,42 @@
+package com.dougkeen.bart.controls;
+
+import com.dougkeen.bart.R;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.widget.Checkable;
+import android.widget.RelativeLayout;
+
+public class DepartureListItemLayout extends RelativeLayout implements
+		Checkable {
+
+	public DepartureListItemLayout(Context context) {
+		super(context);
+		LayoutInflater.from(context).inflate(R.layout.departure_listing, this,
+				true);
+	}
+
+	private boolean mChecked;
+
+	@Override
+	public boolean isChecked() {
+		return mChecked;
+	}
+
+	@Override
+	public void setChecked(boolean checked) {
+		mChecked = checked;
+		if (isChecked()) {
+			setBackgroundDrawable(getContext().getResources().getDrawable(
+					R.color.blue_selection));
+		} else {
+			setBackgroundDrawable(getContext().getResources().getDrawable(
+					android.R.color.transparent));
+		}
+	}
+
+	@Override
+	public void toggle() {
+		setChecked(!isChecked());
+	}
+}

src/com/dougkeen/bart/data/DepartureArrayAdapter.java

@@ -13,6 +13,7 @@ import android.view.ViewGroup;
 import android.view.animation.AnimationUtils;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
+import android.widget.ListView;
 import android.widget.RelativeLayout;
 import android.widget.TextSwitcher;
 import android.widget.TextView;
@@ -20,6 +21,7 @@ import android.widget.ViewSwitcher.ViewFactory;
 
 import com.dougkeen.bart.R;
 import com.dougkeen.bart.controls.CountdownTextView;
+import com.dougkeen.bart.controls.DepartureListItemLayout;
 import com.dougkeen.bart.controls.TimedTextSwitcher;
 import com.dougkeen.bart.model.Departure;
 import com.dougkeen.bart.model.TextProvider;
@@ -58,11 +60,11 @@ public class DepartureArrayAdapter extends ArrayAdapter<Departure> {
 	@Override
 	public View getView(int position, View convertView, ViewGroup parent) {
 		View view;
-		if (convertView != null && convertView instanceof RelativeLayout) {
+		if (convertView != null
+				&& convertView instanceof DepartureListItemLayout) {
 			view = convertView;
 		} else {
-			LayoutInflater inflater = LayoutInflater.from(getContext());
-			view = inflater.inflate(R.layout.departure_listing, parent, false);
+			view = new DepartureListItemLayout(getContext());
 		}
 
 		final Departure departure = getItem(position);