added checkboxes in the Phrasebook UI

src/ui/android/res/layout/checkbox_input_list_item.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <CheckBox
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="15sp"
+        android:id="@+id/choice_checkbox" />
+
+</LinearLayout>

src/ui/android/src/se/chalmers/phrasebook/backend/Model.java

@@ -108,6 +108,9 @@ public class Model {
 		} else if (node.getNodeName().equals("option")) {
 			SyntaxNode[] options = constructSyntaxNodeList(node, ids, calls);
 			return new SyntaxNodeOption(desc, options);
+		} else if (node.getNodeName().equals("boolean")) {
+			SyntaxNode[] options = constructSyntaxNodeList(node, ids, calls);
+			return new SyntaxNodeBoolean(desc, options);
 		} else if (node.getNodeName().equals("call")) {
 			if (attributes.getNamedItem("ref") == null)
 				return null;

src/ui/android/src/se/chalmers/phrasebook/backend/syntax/SyntaxNodeBoolean.java

@@ -0,0 +1,7 @@
+package se.chalmers.phrasebook.backend.syntax;
+
+public class SyntaxNodeBoolean extends SyntaxNodeOption {
+	public SyntaxNodeBoolean(String desc, SyntaxNode[] options) {
+		super(desc,options);
+	}
+}

src/ui/android/src/se/chalmers/phrasebook/gui/fragments/TranslatorFragment.java

@@ -62,7 +62,9 @@ public class TranslatorFragment extends Fragment {
 				public View getView (int position, View convertView, ViewGroup parent) {
 					SyntacticChoice choice = mContext.getChoices().get(position);
 					View view = null;
-					if (choice.getNode() instanceof SyntaxNodeOption) {
+					if (choice.getNode() instanceof SyntaxNodeBoolean) {
+						view = createCheckBoxInputView(inflater, choice, (SyntaxNodeBoolean) choice.getNode(), parent);
+					} else if (choice.getNode() instanceof SyntaxNodeOption) {
 						view = createSpinnerInputView(inflater, choice, (SyntaxNodeOption) choice.getNode(), parent);
 					} else if (choice.getNode() instanceof SyntaxNodeNumeral) {
 						view = createNumeralInputView(inflater, choice, (SyntaxNodeNumeral) choice.getNode(), parent);
@@ -215,6 +217,31 @@ public class TranslatorFragment extends Fragment {
         return view;
 	}
 
+    private View createCheckBoxInputView(LayoutInflater inflater, final SyntacticChoice choice, final SyntaxNodeBoolean options, ViewGroup parent) {
+        View view = inflater.inflate(R.layout.checkbox_input_list_item, parent, false);
+        final CheckBox checkBox = (CheckBox) view.findViewById(R.id.choice_checkbox);
+
+		String label = options.getDesc();
+        if (label != null && !label.isEmpty()) {
+            checkBox.setText(label);
+        }
+
+        checkBox.setChecked(choice.getChoice() == 1);
+        checkBox.setOnClickListener(new View.OnClickListener() {
+
+            @Override
+            public void onClick(View view) {
+				int position = checkBox.isChecked() ? 1 : 0;
+				if (position != choice.getChoice()) {
+					choice.setChoice(position);
+					updateSyntax();
+				}
+            }
+        });
+
+        return view;
+	}
+
     public void updateSyntax() {
 		mContext.reset();