feat: added card view with full brightness, and center no cards text

mobile/build.gradle.kts

@@ -45,4 +45,6 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.espresso.core)
     androidTestImplementation(libs.androidx.junit)
+    implementation(libs.zxing.core)
+    implementation(libs.zxing.android)
 }

mobile/src/main/AndroidManifest.xml

@@ -11,6 +11,9 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Base.Theme.OmniCards">
+        <activity
+            android:name=".ShowCardActivity"
+            android:exported="false" />
         <activity
             android:name=".AddCardActivity"
             android:exported="false" />

mobile/src/main/java/ru/omni_devel/cards/AddCardActivity.kt

@@ -9,6 +9,7 @@ import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import com.google.zxing.BarcodeFormat
 
 class AddCardActivity : AppCompatActivity() {
     private lateinit var db: DbHelper
@@ -30,7 +31,7 @@ class AddCardActivity : AppCompatActivity() {
         val cardCodeTypeSelector: Spinner = findViewById(R.id.cardCodeTypeSelector)
         val saveCardButton: Button = findViewById(R.id.saveCardButton)
 
-        val options = CodeType.entries.map { it.name }
+        val options = BarcodeFormat.entries.map { it.name }
         val adapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, options)
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
         cardCodeTypeSelector.adapter = adapter
@@ -38,7 +39,7 @@ class AddCardActivity : AppCompatActivity() {
         saveCardButton.setOnClickListener {
             val cardName = cardNameInput.text.toString()
             val cardValue = cardValueInput.text.toString()
-            val cardCodeType = CodeType.valueOf(cardCodeTypeSelector.selectedItem.toString())
+            val cardCodeType = BarcodeFormat.valueOf(cardCodeTypeSelector.selectedItem.toString())
 
             db.addCard(cardName, cardValue, cardCodeType)
 

mobile/src/main/java/ru/omni_devel/cards/CardInfo.kt

@@ -1,13 +1,10 @@
 package ru.omni_devel.cards
 
-enum class CodeType {
-    QR,
-    BAR,
-}
+import com.google.zxing.BarcodeFormat
 
 class CardInfo (
     val id: Int,
     val name: String,
+    val codeType: BarcodeFormat,
     val codeValue: String,
-    val codeType: CodeType,
 )

mobile/src/main/java/ru/omni_devel/cards/DbHelper.kt

@@ -4,10 +4,11 @@ import android.content.ContentValues
 import android.content.Context
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
+import com.google.zxing.BarcodeFormat
 
 class DbHelper(val context: Context, val factory: SQLiteDatabase.CursorFactory?) : SQLiteOpenHelper(context, "omni_cards", factory, 1) {
     override fun onCreate(db: SQLiteDatabase?) {
-        db!!.execSQL("CREATE TABLE IF NOT EXISTS cards (id SERIAL PRIMARY KEY, name TEXT, codeType TEXT, codeValue TEXT)")
+        db!!.execSQL("CREATE TABLE IF NOT EXISTS cards (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, codeType TEXT, codeValue TEXT)")
     }
 
     override fun onUpgrade(
@@ -18,7 +19,7 @@ class DbHelper(val context: Context, val factory: SQLiteDatabase.CursorFactory?)
         db!!.execSQL("DROP TABLE IF EXISTS cards")
     }
 
-    fun addCard(name: String, codeValue: String, codeType: CodeType) {
+    fun addCard(name: String, codeValue: String, codeType: BarcodeFormat) {
         val values = ContentValues()
 
         values.put("name", name)
@@ -42,7 +43,7 @@ class DbHelper(val context: Context, val factory: SQLiteDatabase.CursorFactory?)
             cards.add(CardInfo(
                 id = cursor.getInt(cursor.getColumnIndexOrThrow("id")),
                 name = cursor.getString(cursor.getColumnIndexOrThrow("name")),
-                codeType = CodeType.valueOf(cursor.getString(cursor.getColumnIndexOrThrow("codeType"))),
+                codeType = BarcodeFormat.valueOf(cursor.getString(cursor.getColumnIndexOrThrow("codeType"))),
                 codeValue = cursor.getString(cursor.getColumnIndexOrThrow("codeValue"))
             ))
         }
@@ -52,4 +53,29 @@ class DbHelper(val context: Context, val factory: SQLiteDatabase.CursorFactory?)
 
         return cards
     }
+
+    fun getCard(id: Int): CardInfo? {
+        val db = this.readableDatabase
+
+        val cursor = db.rawQuery("SELECT * FROM cards WHERE id = ?", arrayOf(id.toString()))
+
+        if (!cursor.moveToFirst()) {
+            cursor.close()
+            db.close()
+
+            return null
+        }
+
+        val cardInfo = CardInfo(
+            id = cursor.getInt(cursor.getColumnIndexOrThrow("id")),
+            name = cursor.getString(cursor.getColumnIndexOrThrow("name")),
+            codeType = BarcodeFormat.valueOf(cursor.getString(cursor.getColumnIndexOrThrow("codeType"))),
+            codeValue = cursor.getString(cursor.getColumnIndexOrThrow("codeValue"))
+        )
+
+        cursor.close()
+        db.close()
+
+        return cardInfo
+    }
 }

mobile/src/main/java/ru/omni_devel/cards/MainActivity.kt

@@ -2,6 +2,7 @@ package ru.omni_devel.cards
 
 import android.content.Intent
 import android.os.Bundle
+import android.view.View
 import android.widget.Button
 import android.widget.LinearLayout
 import android.widget.TextView
@@ -55,6 +56,7 @@ class MainActivity : AppCompatActivity() {
 
             text.text = "Add a card to get started"
             text.layoutParams = params
+            text.textAlignment = View.TEXT_ALIGNMENT_CENTER
 
             cardsList.addView(text)
         } else {
@@ -71,6 +73,14 @@ class MainActivity : AppCompatActivity() {
                 button.layoutParams = params
                 button.cornerRadius = (12 * resources.displayMetrics.density).toInt()
 
+                button.setOnClickListener {
+                    val intent = Intent(this, ShowCardActivity::class.java)
+
+                    intent.putExtra("cardId", card.id)
+
+                    startActivity(intent)
+                }
+
                 cardsList.addView(button)
             }
         }

mobile/src/main/java/ru/omni_devel/cards/ShowCardActivity.kt

@@ -0,0 +1,66 @@
+package ru.omni_devel.cards
+
+import android.os.Bundle
+import android.view.WindowManager
+import android.widget.ImageView
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class ShowCardActivity : AppCompatActivity() {
+    private lateinit var db: DbHelper
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_show_card)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        db = DbHelper(this, null)
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        setBrightness(1.0f)
+        renderCard()
+    }
+
+    override fun onPause() {
+        super.onPause()
+
+        setBrightness(WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE)
+    }
+
+    private fun renderCard() {
+        val cardId = intent.getIntExtra("cardId", 0)
+
+        val cardInfo = db.getCard(cardId)
+
+        if (cardInfo == null) {
+            Toast.makeText(this, "cardInfo is null", Toast.LENGTH_LONG).show()
+
+            return
+        }
+
+        val cardCodeView: ImageView = findViewById(R.id.cardCodeView)
+
+        val code = generateCode(cardInfo.codeValue, cardInfo.codeType)
+
+        cardCodeView.setImageBitmap(code)
+    }
+
+    private fun setBrightness(level: Float) {
+        val params = window.attributes
+
+        params.screenBrightness = level
+
+        window.attributes = params
+    }
+}

mobile/src/main/java/ru/omni_devel/cards/Utils.kt

@@ -0,0 +1,13 @@
+package ru.omni_devel.cards
+
+import android.graphics.Bitmap
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.MultiFormatWriter
+import com.journeyapps.barcodescanner.BarcodeEncoder
+
+fun generateCode(value: String, format: BarcodeFormat): Bitmap {
+    val writer = MultiFormatWriter()
+    val matrix = writer.encode(value, format, 600, 300)
+
+    return BarcodeEncoder().createBitmap(matrix)
+}

mobile/src/main/res/layout/activity_show_card.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".AddCardActivity">
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar2"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:background="?attr/colorPrimary"
+        android:minHeight="?attr/actionBarSize"
+        android:theme="?attr/actionBarTheme"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:text="OmniCards"
+        android:textColor="@color/text_primary"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="@+id/toolbar2"
+        app:layout_constraintStart_toStartOf="@+id/toolbar2"
+        app:layout_constraintTop_toTopOf="@+id/toolbar2" />
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginEnd="8dp"
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/toolbar2"
+        app:layout_constraintVertical_bias="0.0">
+
+        <ImageView
+            android:id="@+id/cardCodeView"
+            android:layout_width="match_parent"
+            android:layout_height="300dp"
+            android:scaleType="fitCenter"/>
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>