added AppWidget with Listview and the ability to swipe between recipe…

…s ingrediants - fixed on fragment detail view onSwipe function - created a content provider (no use for it yet)

app/src/main/AndroidManifest.xml

@@ -28,17 +28,38 @@
             android:name=".Activities.RecipeDetailViewActivity"
             android:parentActivityName=".Activities.RecipeDetailActivity" />
         <activity android:name=".Activities.SettingsActivity" />
+
         <activity android:name=".Activities.AboutActivity" />
 
         <receiver android:name=".Widget.RecipesWidget">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
 
+            <intent-filter>
+                <action android:name="ACTION_UPDATE_SHOW_PREV"/>
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="ACTION_UPDATE_SHOW_NEXT"/>
+            </intent-filter>
+
             <meta-data
                 android:name="android.appwidget.provider"
                 android:resource="@xml/recipes_widget_info" />
         </receiver>
+
+        <provider
+            android:name=".Database.RecipeContentProvider"
+            android:authorities="ml.medyas.baknigApp.RecipeContentProvider.provider"
+            android:enabled="true"
+            android:exported="true" />
+
+        <service
+            android:name=".Widget.ListWidgetService"
+            android:permission="android.permission.BIND_REMOTEVIEWS" >
+
+        </service>
     </application>
 
 </manifest>

app/src/main/java/ml/medyas/bakingapp/Activities/RecipeDetailActivity.java

@@ -33,8 +33,9 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (savedInstanceState != null) {
             recipe = savedInstanceState.getParcelable(RECIPE_ITEM);
+
         } else {
-            recipe =  AppSingleton.getSelectedRecipe();
+            recipe = AppSingleton.getSelectedRecipe();
         }
 
         if (findViewById(R.id.right_container) != null) {

app/src/main/java/ml/medyas/bakingapp/Activities/RecipeDetailViewActivity.java

@@ -1,5 +1,6 @@
 package ml.medyas.bakingapp.Activities;
 
+import android.annotation.SuppressLint;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v7.app.AppCompatActivity;
@@ -23,6 +24,7 @@ public class RecipeDetailViewActivity extends AppCompatActivity implements Recip
     private RecipeClass recipe;
     private int position;
 
+    @SuppressLint("ClickableViewAccessibility")
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -50,7 +52,7 @@ protected void onCreate(Bundle savedInstanceState) {
             public void onSwipeTop() {
             }
             public void onSwipeRight() {
-                if(0<position--) {
+                if(0<position-1) {
                     position --;
                 }
                 else {
@@ -59,7 +61,7 @@ public void onSwipeRight() {
                 displayFragment(position);
             }
             public void onSwipeLeft() {
-                if(recipe.getSteps().size()<=position++) {
+                if(recipe.getSteps().size()<=position+1) {
                     position = 0;
                 }
                 else {

app/src/main/java/ml/medyas/bakingapp/Adapters/OnSwipeTouchListener.java

@@ -57,8 +57,10 @@ else if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCI
             }
             return result;
         }
+
     }
 
+
     public void onSwipeRight() {
     }
 

app/src/main/java/ml/medyas/bakingapp/Classes/RecipeClass.java

@@ -8,8 +8,11 @@
 
 import java.util.List;
 
-@Entity(tableName = "recipes")
+@Entity(tableName = RecipeClass.TABLE_NAME)
 public class RecipeClass implements Parcelable {
+    /** The name of the Cheese table. */
+    public static final String TABLE_NAME = "recipes";
+
     @PrimaryKey
     private int id;
     private int servings;

app/src/main/java/ml/medyas/bakingapp/Database/DaoClass.java

@@ -5,6 +5,7 @@
 import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
 import android.arch.persistence.room.Query;
+import android.database.Cursor;
 
 import java.util.List;
 
@@ -16,6 +17,12 @@ public interface DaoClass {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     void insert(List<RecipeClass> recipes);
 
-    @Query("select * from recipes ORDER BY id ASC")
+    @Query("select * from "+ RecipeClass.TABLE_NAME+" ORDER BY id ASC")
     LiveData<List<RecipeClass>> getRecipes();
+
+    @Query("select * from "+ RecipeClass.TABLE_NAME+" ORDER BY id ASC")
+    List<RecipeClass> getRecipesList();
+
+    @Query("select * from "+ RecipeClass.TABLE_NAME+" ORDER BY id ASC")
+    Cursor getRecipesCursor();
 }

app/src/main/java/ml/medyas/bakingapp/Database/RecipeContentProvider.java

@@ -0,0 +1,78 @@
+package ml.medyas.bakingapp.Database;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+
+import ml.medyas.bakingapp.Classes.RecipeClass;
+
+public class RecipeContentProvider extends ContentProvider {
+
+    public static final String AUTHORITY = "ml.medyas.baknigApp.RecipeContentProvider.provider";
+    public static final Uri URI_RECIPE = Uri.parse(
+            "content://" + AUTHORITY + "/" + RecipeClass.TABLE_NAME);
+
+    private static final UriMatcher MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
+
+    private DaoClass mDao;
+    private Context context;
+    /** The match code for some items in the Cheese table. */
+    private static final int CODE_RECIPE_DIR = 1;
+
+    static {
+        MATCHER.addURI(AUTHORITY, RecipeClass.TABLE_NAME, CODE_RECIPE_DIR);
+    }
+
+    public RecipeContentProvider() {
+    }
+
+    @Override
+    public int delete(Uri uri, String selection, String[] selectionArgs) {
+        // Implement this to handle requests to delete one or more rows.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+    @Override
+    public String getType(Uri uri) {
+        // TODO: Implement this to handle requests for the MIME type of the data
+        // at the given URI.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+    @Override
+    public Uri insert(Uri uri, ContentValues values) {
+        // TODO: Implement this to handle requests to insert a new row.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+    @Override
+    public boolean onCreate() {
+        context = getContext();
+        mDao = RecipesRoomDB.getDatabase(context).recipeDao();
+        return true;
+    }
+
+    @Override
+    public Cursor query(Uri uri, String[] projection, String selection,
+                        String[] selectionArgs, String sortOrder) {
+        final int code = MATCHER.match(uri);
+        if (code == CODE_RECIPE_DIR) {
+            final Cursor cursor;
+            cursor = mDao.getRecipesCursor();
+            cursor.setNotificationUri(context.getContentResolver(), uri);
+            return cursor;
+        } else {
+            throw new IllegalArgumentException("Unknown URI: " + uri);
+        }
+    }
+
+    @Override
+    public int update(Uri uri, ContentValues values, String selection,
+                      String[] selectionArgs) {
+        // TODO: Implement this to handle requests to update one or more rows.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+}

app/src/main/java/ml/medyas/bakingapp/Database/RecipesRoomDB.java

@@ -14,7 +14,7 @@ public abstract class RecipesRoomDB extends RoomDatabase {
 
     private static volatile RecipesRoomDB INSTANCE;
 
-    static RecipesRoomDB getDatabase(final Context context) {
+    public static RecipesRoomDB getDatabase(final Context context) {
         if (INSTANCE == null) {
             synchronized (RecipesRoomDB.class) {
                 if (INSTANCE == null) {

app/src/main/java/ml/medyas/bakingapp/Widget/ListWidgetService.java

@@ -0,0 +1,85 @@
+package ml.medyas.bakingapp.Widget;
+
+import android.content.Context;
+import android.content.Intent;
+import android.widget.RemoteViews;
+import android.widget.RemoteViewsService;
+
+import ml.medyas.bakingapp.R;
+
+import static ml.medyas.bakingapp.Widget.RecipesWidget.INGRED_LIST;
+import static ml.medyas.bakingapp.Widget.RecipesWidget.ingred;
+
+public class ListWidgetService extends RemoteViewsService {
+
+
+    private String[] mIngred = null;
+
+    @Override
+    public RemoteViewsFactory onGetViewFactory(final Intent intent) {
+        return new ListWidgetRemoteViewsFactory(this.getApplicationContext(), intent);
+    }
+
+
+    class  ListWidgetRemoteViewsFactory implements RemoteViewsService.RemoteViewsFactory {
+
+        private Context mContext;
+
+        public ListWidgetRemoteViewsFactory(Context applicationContext, Intent intent) {
+             mContext = applicationContext;
+             mIngred = intent.getStringArrayExtra(INGRED_LIST);
+        }
+
+        @Override
+        public void onCreate() {
+        }
+
+        @Override
+        public void onDataSetChanged() {
+            mIngred = ingred;
+        }
+
+        @Override
+        public void onDestroy() {
+
+        }
+
+        @Override
+        public int getCount() {
+            return mIngred.length;
+        }
+
+        @Override
+        public RemoteViews getViewAt(int i) {
+            RemoteViews rv = new RemoteViews(mContext.getPackageName(), R.layout.widget_list_item_layout);
+            rv.setTextViewText(R.id.widget_ingred_text, mIngred[i]);
+
+            // Return the remote views object.
+            return rv;
+
+        }
+
+        @Override
+        public RemoteViews getLoadingView() {
+            return new RemoteViews(mContext.getPackageName(), R.layout.widget_list_item_loading_layout);
+        }
+
+        @Override
+        public int getViewTypeCount() {
+            return 1;
+        }
+
+        @Override
+        public long getItemId(int i) {
+            return 0;
+        }
+
+        @Override
+        public boolean hasStableIds() {
+            return false;
+        }
+
+    }
+}
+
+