Will Lai - Cursor Adapter Lab

starter-code/ShoppingListVer2/app/src/main/java/ly/generalassemb/drewmahrt/shoppinglistver2/MainActivity.java

@@ -11,6 +11,7 @@
 import android.widget.SimpleCursorAdapter;
 
 import ly.generalassemb.drewmahrt.shoppinglistver2.setup.DBAssetHelper;
+import ly.generalassemb.drewmahrt.shoppinglistver2.setup.ShoppingSQLiteHelper;
 
 public class MainActivity extends AppCompatActivity {
     @Override
@@ -22,5 +23,26 @@ protected void onCreate(Bundle savedInstanceState) {
         DBAssetHelper dbSetup = new DBAssetHelper(MainActivity.this);
         dbSetup.getReadableDatabase();
 
+        //Link SQL Helper
+        //Creating the helper
+
+        //Instantiate ShoppingSQLiteHelper object
+        ShoppingSQLiteHelper shoppingHelper = new ShoppingSQLiteHelper(MainActivity.this);
+
+        //get access to that method in the Class
+        //*must have matching datatypes "Cursor"
+        Cursor cursor = shoppingHelper.cursorOfShoppingList();
+
+        //Create Array "ITEM_NAME" column for Cursor Adapter below
+        String[] columnName = new String[]{"ITEM_NAME"};
+        //create Integer layoutIds to store View ID of simple_list_item_1 below
+        int[] layoutIds = new int[]{android.R.id.text1};
+
+        //BUILD CURSOR ADAPTER
+        SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(MainActivity.this, android.R.layout.simple_list_item_1, cursor, columnName, layoutIds, 0);
+
+        ListView listview = (ListView) findViewById(R.id.shopping_list_view);
+        listview.setAdapter(cursorAdapter);
+
     }
 }

starter-code/ShoppingListVer2/app/src/main/java/ly/generalassemb/drewmahrt/shoppinglistver2/setup/ShoppingSQLiteHelper.java

@@ -0,0 +1,77 @@
+package ly.generalassemb.drewmahrt.shoppinglistver2.setup;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+/**
+ * Created by Envy on 2/2/2016.
+ */
+public class ShoppingSQLiteHelper extends SQLiteOpenHelper {
+
+    //VERSION is private
+    //Specify title names of Table
+    private static final int DATABASE_VERSION = 7;
+    public static final String DATABASE_NAME = "SHOPPING_DB";
+    public static final String TABLE_NAME = "SHOPPING_LIST";
+
+    public static final String ID = "_id";
+    public static final String ITEM_NAME = "ITEM_NAME";
+    public static final String DESCRIPTION = "DESCRIPTION";
+    public static final String PRICE = "PRICE";
+    public static final String TYPE = "TYPE";
+
+    public static final String[] COLUMN_NAMES = new String[]{ ID, ITEM_NAME, DESCRIPTION, PRICE, TYPE };
+
+    //Code Generator > CONSTRUCTOR:
+    //Delete String Name = Variable declared already
+    public ShoppingSQLiteHelper(Context context) {
+        //create null, and link DATABASE_NAME, DATABASE_VERSION
+        //removed parameter items that wont be used
+        //super is a constructor for parent class
+        super(context, DATABASE_NAME, null, DATABASE_VERSION);
+    }
+
+    //CREATING DATABASE: CODE GENERATOR > ONCREATE > ONUPGRADE
+    //ONCREATE, TO CREATE DATABASE
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        //DATABASE CREATION
+        //execSQL = Takes a string as a parameter
+        //db.exeSQL( "CREATE TABLE table_name ( column names DATATYPES)")
+        db.execSQL("CREATE TABLE SHOPPING_LIST ( _id INTEGER PRIMARY KEY AUTO ICREMENT, ITEM_NAME TEXT, DESCRIPTION TEXT, PRICE TEXT, TYPE TEXT )");
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        //onUpgrade = Database Manipulation to recreate a new database
+
+        //Erase, "drop" old SHOPPING_LIST if exists
+        //drop "SHOPPING_LIST"
+        db.execSQL("DROP TABLE IF EXISTS SHOPPING_LIST");
+
+        //Then create new 'db' below
+        this.onCreate(db);
+    }
+
+    //Refer to table where content is located
+    //Create method to RETURN a Cursor
+
+    public Cursor cursorOfShoppingList(){
+
+        //Specify which database Cursor will be used
+        //.getReadableDatabase will automatically grab database
+        SQLiteDatabase databaze = this.getReadableDatabase();
+
+        //Refer the Cursor to new databaze
+        //SELECT * FROM SHOPPING_LIST WHERE ITEM_NAME = "Milk";
+        Cursor cursor = databaze.query(TABLE_NAME, COLUMN_NAMES,null,null,null,null,null,null);
+
+        return cursor;
+    }
+
+
+
+
+}