Adds significant adapter resources.

android/KMEA/app/src/main/java/com/tavultesoft/kmea/KMKeyboardPickerAdapter.java

@@ -15,13 +15,13 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
 import android.widget.ImageButton;
 import android.widget.TextView;
 
 import com.tavultesoft.kmea.data.Keyboard;
-import com.tavultesoft.kmea.data.adapters.KeyboardsAdapter;
 
-final class KMKeyboardPickerAdapter extends KeyboardsAdapter implements OnClickListener {
+final class KMKeyboardPickerAdapter extends ArrayAdapter<Keyboard> implements OnClickListener {
   private final static int KEYBOARD_LAYOUT_RESOURCE = R.layout.list_row_layout3;
 
   private Context context;
@@ -36,9 +36,9 @@ final class KMKeyboardPickerAdapter extends KeyboardsAdapter implements OnClickL
     return kbdData;
   }
 
+  // TODO:  End goal:  take in a KeyboardAdapter instead of this list; reference that as needed.
   public KMKeyboardPickerAdapter(Context context, List<? extends Map<String, String>> data) {
     super(context, KEYBOARD_LAYOUT_RESOURCE, mapCast(data));
-    this.context = context;
   }
 
   @Override

android/KMEA/app/src/main/java/com/tavultesoft/kmea/ModelPickerActivity.java

@@ -26,6 +26,7 @@ import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
 
+import com.tavultesoft.kmea.data.adapters.LexicalModelAdapter;
 import com.tavultesoft.kmea.packages.JSONUtils;
 import com.tavultesoft.kmea.packages.LexicalModelPackageProcessor;
 import com.tavultesoft.kmea.packages.PackageProcessor;

android/KMEA/app/src/main/java/com/tavultesoft/kmea/data/Dataset.java

@@ -7,11 +7,11 @@ import androidx.annotation.NonNull;
 
 import java.util.List;
 
-public class RepositoryDataset extends ArrayAdapter<LanguageDataset> {
+public class Dataset extends ArrayAdapter<LanguageDataset> {
   // Stores internal adapters for keyboard, lexical model listings
   // 'Items' are language-specific datasets holding their own language-specific adapters.
 
-  public RepositoryDataset(@NonNull Context context, int resource, @NonNull List<LanguageDataset> objects) {
+  private Dataset(@NonNull Context context, int resource, @NonNull List<LanguageDataset> objects) {
     super(context, resource, objects);
   }
 }

android/KMEA/app/src/main/java/com/tavultesoft/kmea/data/LexicalModel.java

@@ -0,0 +1,23 @@
+package com.tavultesoft.kmea.data;
+
+import java.util.Map;
+
+public class LexicalModel {
+  public final Map<String, String> map;
+
+  /* TODO:  (v13 refactor)
+   * Drop the HashMap and instead directly represent the following as object properties:
+   *
+   *   hashMap.put(KMManager.KMKey_PackageID, packageID);
+   *   hashMap.put(KMManager.KMKey_LanguageID, languageID);
+   *   hashMap.put(KMManager.KMKey_LexicalModelID, modelID);
+   *   hashMap.put(KMManager.KMKey_LexicalModelName, modelName);
+   *   hashMap.put(KMManager.KMKey_LanguageName, langName);
+   *   hashMap.put(KMManager.KMKey_LexicalModelVersion, modelVersion);
+   *   hashMap.put(KMManager.KMKey_CustomModel, isCustom);
+   */
+
+  public LexicalModel(Map<String, String> modelData) {
+    this.map = modelData;
+  }
+}

android/KMEA/app/src/main/java/com/tavultesoft/kmea/data/adapters/KeyboardsAdapter.java

@@ -7,14 +7,25 @@ import androidx.annotation.NonNull;
 
 import com.tavultesoft.kmea.data.Keyboard;
 
+import java.util.Collections;
 import java.util.List;
 
-public class KeyboardsAdapter extends ArrayAdapter<Keyboard> {
+public class KeyboardsAdapter extends ArrayAdapter<Keyboard> implements ListBacked<Keyboard> {
+  private final List<Keyboard> data;
+
   public KeyboardsAdapter(@NonNull Context context, int resource, @NonNull List<Keyboard> data) {
     super(context, resource, data);
-    // We do NOT save a reference to the data; it should always be accessed
-    // through ArrayAdapter methods.
+
+    // We only want to allow mutations through the adapter, but it's useful to maintain
+    // a List<> version of the data to assist with other adapters.
+    this.data = Collections.unmodifiableList(data);
+  }
+
+  public List<Keyboard> asList() {
+    return this.data;
   }
 
   // getView should be overridden by child instances.
+  // - repository dataset
+  // - local dataset
 }

android/KMEA/app/src/main/java/com/tavultesoft/kmea/data/adapters/LexicalModelAdapter.java

@@ -0,0 +1,31 @@
+package com.tavultesoft.kmea.data.adapters;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+
+import androidx.annotation.NonNull;
+
+import com.tavultesoft.kmea.data.LexicalModel;
+
+import java.util.Collections;
+import java.util.List;
+
+public class LexicalModelAdapter extends ArrayAdapter<LexicalModel> implements ListBacked<LexicalModel> {
+  private final List<LexicalModel> data;
+
+  public LexicalModelAdapter(@NonNull Context context, int resource, @NonNull List<LexicalModel> data) {
+    super(context, resource, data);
+
+    // We only want to allow mutations through the adapter, but it's useful to maintain
+    // a List<> version of the data to assist with other adapters.
+    this.data = Collections.unmodifiableList(data);
+  }
+
+  public List<LexicalModel> asList() {
+    return this.data;
+  }
+
+  // getView should be overridden by child instances.
+  // - repository dataset
+  // - local dataset
+}

android/KMEA/app/src/main/java/com/tavultesoft/kmea/data/adapters/ListBacked.java

@@ -0,0 +1,7 @@
+package com.tavultesoft.kmea.data.adapters;
+
+import java.util.List;
+
+public interface ListBacked<T> {
+    List<T> asList();
+}