Implement 2_PROJECT_ANDROID: Gradle configuration, layout setup, and CameraX initial logic

2026-07-05 12:29:00 +07:00
parent a3b9c24936
commit df837a4c56
6 changed files with 358 additions and 76 deletions
@@ -1,44 +1,72 @@
 package com.photobooth.app

+import android.Manifest
+import android.content.pm.PackageManager
 import android.os.Bundle
-import androidx.activity.ComponentActivity
-import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.camera.core.CameraSelector
+import androidx.camera.core.Preview
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import com.photobooth.app.databinding.ActivityMainBinding
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+    private lateinit var cameraExecutor: ExecutorService

-class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState: Bundle?)
-        setContent {
-            MaterialTheme {
-                Surface(
-                    modifier = Modifier.fillMaxSize(),
-                    color = MaterialTheme.colorScheme.background
-                ) {
-                    Greeting("Retro Photobooth")
-                }
-            }
+        super.onCreate(savedInstanceState)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        // Xin quyền Camera
+        if (allPermissionsGranted()) {
+            startCamera()
+        } else {
+            ActivityCompat.requestPermissions(this, REQUIRED_PERMISSIONS, REQUEST_CODE_PERMISSIONS)
        }
-    }
-}
-
-@Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Text(
-        text = "Welcome to $name!",
-        modifier = modifier
-    )
-}
-
-@Preview(showBackground = true)
-@Composable
-fun GreetingPreview() {
-    MaterialTheme {
-        Greeting("Retro Photobooth")
+
+        cameraExecutor = Executors.newSingleThreadExecutor()
+    }
+
+    private fun startCamera() {
+        val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
+
+        cameraProviderFuture.addListener({
+            val cameraProvider: ProcessCameraProvider = cameraProviderFuture.get()
+
+            // Cấu hình Kính ngắm (Preview)
+            val preview = Preview.Builder().build().also {
+                it.setSurfaceProvider(binding.viewFinder.surfaceProvider)
+            }
+
+            // Chọn Camera Trước (Mặc định cho Photobooth)
+            val cameraSelector = CameraSelector.DEFAULT_FRONT_CAMERA
+
+            try {
+                cameraProvider.unbindAll()
+                cameraProvider.bindToLifecycle(this, cameraSelector, preview)
+            } catch (xc: Exception) {
+                Toast.makeText(this, "Không thể khởi động Camera", Toast.LENGTH_SHORT).show()
+            }
+        }, ContextCompat.getMainExecutor(this))
+    }
+
+    private fun allPermissionsGranted() = REQUIRED_PERMISSIONS.all {
+        ContextCompat.checkSelfPermission(baseContext, it) == PackageManager.PERMISSION_GRANTED
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        cameraExecutor.shutdown()
+    }
+
+    companion object {
+        private const val REQUEST_CODE_PERMISSIONS = 10
+        private val REQUIRED_PERMISSIONS = arrayOf(Manifest.permission.CAMERA)
    }
 }
@@ -0,0 +1,36 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#121212">
+
+    <!-- Màn hình xem trước Camera -->
+    <androidx.camera.view.PreviewView
+        android:id="@+id/viewFinder"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        app:layout_constraintDimensionRatio="3:4"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toTopOf="@id/controlPanel" />
+
+    <!-- Bảng điều khiển phía dưới -->
+    <RelativeLayout
+        android:id="@+id/controlPanel"
+        android:layout_width="match_parent"
+        android:layout_height="120dp"
+        android:background="#000000"
+        app:layout_constraintBottom_toBottomOf="parent">
+
+        <!-- Nút chụp hình -->
+        <ImageButton
+            android:id="@+id/btnCapture"
+            android:layout_width="70dp"
+            android:layout_height="70dp"
+            android:layout_centerInParent="true"
+            android:background="@android:color/transparent"
+            android:src="@android:drawable/ic_menu_camera"
+            android:contentDescription="Capture Button" />
+    </RelativeLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>