draft db

app/src/main/java/com/example/elbuenopeso/MainActivity.kt

@@ -9,6 +9,7 @@ import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.setupActionBarWithNavController
 import androidx.navigation.ui.setupWithNavController
+import com.example.elbuenopeso.database.DBManager
 import com.example.elbuenopeso.databinding.ActivityMainBinding
 import com.google.android.material.bottomnavigation.BottomNavigationView
 

app/src/main/java/com/example/elbuenopeso/adapters/DbAdapter.kt

+package com.example.elbuenopeso.adapters
+
+import android.content.Context
+import android.database.Cursor
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.CursorAdapter
+import android.widget.ImageView
+import android.widget.TextView
+import com.example.elbuenopeso.R
+import com.example.elbuenopeso.database.DBHelper
+import
+
+class DbAdapter(context: Context, c: Cursor, layout: Int): CursorAdapter(context, c) {
+    val item_layout = layout
+    override fun newView(context: Context, cursor: Cursor, viewGroup: ViewGroup): View {
+        return LayoutInflater.from(context).inflate(item_layout, viewGroup, false);
+    }
+
+    override fun bindView(view: View, context: Context, cursor: Cursor) {
+        val titleTextView: TextView = view.findViewById(R.id.itemListViewTitleView)
+        val addressTextView: TextView = view.findViewById(R.id.itemListViewTextView)
+        val imageView: ImageView = view.findViewById(R.id.itemListViewImageView)
+        val prixView: TextView = view.findViewById(R.id.itemListViewPrixView)
+
+        val id: String = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper._ID))
+        val title: String = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.TITLE))
+        val address: String = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.ADDRESS))
+        val prix: Double = cursor.getDouble(cursor.getColumnIndexOrThrow(DBHelper.PRIX.toString()))
+        val image: String = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.IMAGE))
+
+        titleTextView.setText(title)
+        addressTextView.setText(address)
+        prixView.setText(prix.toString())
+
+        //with(Glide)
+        //TODO: trouver une alternative !!!
+    }
+
+}
\ No newline at end of file

app/src/main/java/com/example/elbuenopeso/database/DBHelper.kt

+package com.example.elbuenopeso.database
+
+import android.content.Context
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import com.example.elbuenopeso.models.AdModel
+
+class DBHelper(context: Context) : SQLiteOpenHelper(context, DB_NAME, null, DB_VERSION) {
+    companion object {
+        const val TABLE_NAME = "publication_table"
+        const val _ID = "unID"
+        const val TITLE = "Mur en briques"
+        const val ADDRESS = "5 Rue de Monsieur Spi"
+        const val IMAGE = "theURLblablabla"
+        const val PRIX = 25.00
+
+        private const val DB_NAME = "LEBONCOIN.DB"
+        private const val DB_VERSION = 1
+        private val CREATE_TABLE = "create table $TABLE_NAME ($_ID INTEGER PRIMARY KEY AUTOINCREMENT, $TITLE TEXT NOT NULL, $ADDRESS TEXT, $IMAGE TEXT);"
+    }
+
+    override fun onCreate(db: SQLiteDatabase) {
+        db.execSQL(CREATE_TABLE)
+    }
+
+    override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
+        db.execSQL("DROP TABLE IF EXISTS $TABLE_NAME")
+        onCreate(db)
+    }
+
+    fun getById(id: Int): AdModel? {
+        val db = this.writableDatabase
+        val query = "SELECT * FROM $TABLE_NAME where $_ID=?"
+        val data = db.rawQuery(query, arrayOf(id.toString()))
+        if (data.moveToFirst()) {
+            val title = data.getString(data.getColumnIndexOrThrow(TITLE))
+            val address = data.getString(data.getColumnIndexOrThrow(ADDRESS))
+            val image = data.getString(data.getColumnIndexOrThrow(IMAGE))
+            val prix = data.getDouble(data.getColumnIndexOrThrow(PRIX.toString()))
+            data.close()
+            return AdModel(title, address, image, prix)
+        } else {
+            data.close()
+            return null
+        }
+    }
+}
+

app/src/main/java/com/example/elbuenopeso/database/DBManager.kt

+package com.example.elbuenopeso.database
+
+import android.content.ContentValues
+import android.content.Context
+import android.database.Cursor
+import android.database.SQLException
+import android.database.sqlite.SQLiteDatabase
+import com.example.elbuenopeso.models.AdModel
+
+
+class DBManager //init(); // Useful for adding ads for the first time.
+private constructor(private val context: Context) {
+    private var dbHelper: DBHelper? = null
+    private var database: SQLiteDatabase? = null
+    @Throws(SQLException::class)
+    fun open(): DBManager {
+        dbHelper = DBHelper(context)
+        database = dbHelper!!.writableDatabase
+        return this
+    }
+
+    fun close() {
+        dbHelper?.close()
+    }
+
+    // Add ads manually.
+    fun init() {
+        open()
+        insert(
+            AdModel(
+                "Wood",
+                "Douai",
+                "https://media.istockphoto.com/id/134253640/photo/construction-of-a-wooden-roof-frame-underway.jpg?s=612x612&w=0&k=20&c=e5gUkic9LGQWahIdHozOsEzHKy_HtsmvmtOHmYsejSU=",
+                25.0
+            )
+        )
+        insert(
+            AdModel(
+                "Steel",
+                "Lille",
+                "https://as2.ftcdn.net/v2/jpg/03/91/83/87/1000_F_391838708_4HFADW5beay2VVlnoual6Qi5fWeIaD9V.jpg",25.0
+            )
+        )
+        insert(
+            AdModel(
+                "Clay",
+                "Douai",
+                "https://constrofacilitator.com/wp-content/uploads/2020/02/clay-in-construction.jpg",25.0
+            )
+        )
+        insert(
+            AdModel(
+                "Metal",
+                "Lyon",
+                "https://www.meto-constructions.fr/wp-content/uploads/2018/12/IMG_6067.jpg",25.0
+            )
+        )
+        insert(
+            AdModel(
+                "Glass",
+                "Valenciennes",
+                "https://i0.wp.com/www.tipsnepal.com/wp-content/uploads/2020/09/simple-float-glass-1505049573-3306125.jpeg?resize=500%2C317&quality=100&strip=all&ssl=1",25.0
+            )
+        )
+        insert(
+            AdModel(
+                "Wood",
+                "Orchies",
+                "https://yieldpro.com/wp-content/uploads/2020/08/lumber1.jpg",25.0
+            )
+        )
+    }
+
+    fun insert(ad: AdModel) {
+        val contentValue = ContentValues()
+        contentValue.put(DBHelper.TITLE, ad.title)
+        contentValue.put(DBHelper.ADDRESS, ad.address)
+        contentValue.put(DBHelper.IMAGE, ad.image)
+        database!!.insert(DBHelper.TABLE_NAME, null, contentValue)
+    }
+
+    fun fetch(): Cursor? {
+        val columns =
+            arrayOf<String>(DBHelper._ID, DBHelper.TITLE, DBHelper.ADDRESS, DBHelper.IMAGE, DBHelper.PRIX.toString())
+        val cursor = database!!.query(DBHelper.TABLE_NAME, columns, null, null, null, null, null)
+        cursor?.moveToFirst()
+        return cursor
+    }
+
+    fun update(_id: Long, ad: AdModel): Int {
+        val contentValues = ContentValues()
+        contentValues.put(DBHelper.TITLE, ad.title)
+        contentValues.put(DBHelper.ADDRESS, ad.address)
+        contentValues.put(DBHelper.IMAGE, ad.image)
+        return database!!.update(
+            DBHelper.TABLE_NAME,
+            contentValues,
+            DBHelper._ID + " = " + _id,
+            null
+        )
+    }
+
+    fun delete(_id: Long) {
+        database!!.delete(DBHelper.TABLE_NAME, DBHelper._ID + "=" + _id, null)
+    }
+
+    fun getById(id: Int): AdModel? {
+        return dbHelper?.getById(id)
+    }
+
+    companion object {
+        var DBManager: DBManager? = null
+        // normalement pas de fuite, puisque 1 seule activité
+        fun getDBManager(context: Context): DBManager? {
+            return if (DBManager == null) {
+                DBManager(context)
+            } else DBManager
+        }
+    }
+}
+

app/src/main/java/com/example/elbuenopeso/models/AdModel.kt

 package com.example.elbuenopeso.models
 
-public class AdModel(var title: String, var address: String, var image: Int, var prix: Double) {
+public class AdModel(var title: String, var address: String, var image: String, var prix: Double) {
 }
\ No newline at end of file

app/src/main/java/com/example/elbuenopeso/models/DbAdModel.kt

+package com.example.elbuenopeso.models
+
+class DbAdModel(var id: Int, var title: String, var address: String, var image: String, var prix: Double) {
+}
\ No newline at end of file

app/src/main/java/com/example/elbuenopeso/ui/market/MarketFragment.kt

 package com.example.elbuenopeso.ui.market
 
 import AdAdapter
+import android.database.Cursor
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.CursorAdapter
 import android.widget.ListView
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import com.example.elbuenopeso.databinding.FragmentMarketBinding
 import com.example.elbuenopeso.models.AdModel
 import com.example.elbuenopeso.R
+import com.example.elbuenopeso.database.DBManager
 
 class MarketFragment : Fragment() {
 
@@ -25,6 +28,7 @@ class MarketFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View {
+
         val marketViewModel =
             ViewModelProvider(this)[MarketViewModel::class.java]
 
@@ -34,15 +38,15 @@ class MarketFragment : Fragment() {
         val listView: ListView = binding.listView
         // seed market items
         var annonces: List<AdModel> = listOf<AdModel>(
-            AdModel("Poutre", "1 rue Jean-Pierre", R.drawable.pichu, 25.0),
-            AdModel("Briques", "2 rue Jean-Michel", R.drawable.pichu, 16.0),
-            AdModel("Mur en bois", "4 rue Alain-Juju", R.drawable.pichu, 7.2),
-            AdModel("Maison de pierre", "7 rue Joris Belhomme", R.drawable.pichu, 3.99),
-            AdModel("Téléphone de Timothé", "8 rue de Timothé", R.drawable.pichu, 0.85),
-            AdModel("Oridnateur", "10 rue Jean-Charles", R.drawable.pichu, 104.98),
-            AdModel("Charnières", "22 rue Jeanne-Marie", R.drawable.pichu, 2648.97),
-            AdModel("Porte en marbre", "1 rue Jean-Pierre", R.drawable.pichu, 480.0),
-            AdModel("Cheminée", "33 rue du Gouvernement", R.drawable.pichu, 800.0),
+            AdModel("Poutre", "1 rue Jean-Pierre", "drawable/pichu.png", 25.0),
+            AdModel("Briques", "2 rue Jean-Michel", "drawable/pichu.png", 16.0),
+            AdModel("Mur en bois", "4 rue Alain-Juju", "drawable/pichu.png", 7.2),
+            AdModel("Maison de pierre", "7 rue Joris Belhomme", "drawable/pichu.png", 3.99),
+            AdModel("Téléphone de Timothé", "8 rue de Timothé", "drawable/pichu.png", 0.85),
+            AdModel("Oridnateur", "10 rue Jean-Charles", "drawable/pichu.png", 104.98),
+            AdModel("Charnières", "22 rue Jeanne-Marie", "drawable/pichu.png", 2648.97),
+            AdModel("Porte en marbre", "1 rue Jean-Pierre", "drawable/pichu.png", 480.0),
+            AdModel("Cheminée", "33 rue du Gouvernement", "drawable/pichu.png", 800.0),
         )
 
         var adAdapter: AdAdapter = AdAdapter(requireContext(), annonces)
@@ -51,6 +55,12 @@ class MarketFragment : Fragment() {
             textView.text = it
         }*/
 
+        val dbManager: DBManager? = DBManager.getDBManager(requireContext())
+        dbManager?.open()
+        val cursor: Cursor? = dbManager?.fetch()
+
+        val cursorAdapter: CursorAdapter = AdAdapter(requireContext(), cursor, R.layout.fragment_market)
+
         return root
     }
 

app/src/main/res/layout/fragment_market.xml

@@ -8,8 +8,9 @@
 
     <ListView
         android:id="@+id/listView"
-        android:layout_width="409dp"
-        android:layout_height="681dp"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />