[안드로이드] 웹뷰 카메라, 앨범 사용

//input file 관련
private var filePathCallback: ValueCallback<Array<Uri>>? = null
private var cameraImageUri: Uri? = null
private val FILE_CHOOSER_REQUEST_CODE = 1001
private val PERMISSION_REQUEST_CODE = 1002 //카메라 접근 권한

private val permissionLauncher =
    registerForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted ->
        if (isGranted) {
            Toast.makeText(this, "사진 접근 권한이 허용되었습니다.", Toast.LENGTH_SHORT).show()
        } else {
            Toast.makeText(this, "사진 접근 권한이 거부되었습니다.", Toast.LENGTH_SHORT).show()
        }
    }

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    //카메라 접근 권한 요청
    checkPermissions();
    
    ...
    
    //input file 관련
    override fun onShowFileChooser(
        webView: WebView?,
        filePathCallback: ValueCallback<Array<Uri>>?,
        fileChooserParams: FileChooserParams?
    ): Boolean {
        this@MainActivity.filePathCallback?.onReceiveValue(null)
        this@MainActivity.filePathCallback = filePathCallback

        // 📸 카메라 Intent
        val cameraIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
        if (cameraIntent.resolveActivity(packageManager) != null) {
            // 파일 경로 만들기
            val photoFile = File.createTempFile(
                "IMG_${System.currentTimeMillis()}_", ".jpg", cacheDir
            )
            cameraImageUri = FileProvider.getUriForFile(
                this@MainActivity,
                "${applicationContext.packageName}.fileprovider",
                photoFile
            )
            cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, cameraImageUri)
        }

        // 🖼️ 갤러리 Intent
        val galleryIntent = Intent(Intent.ACTION_PICK).apply {
            type = "image/*"
        }

        // ✨ 카메라 + 갤러리 선택창 띄우기
        val chooserIntent = Intent(Intent.ACTION_CHOOSER).apply {
            putExtra(Intent.EXTRA_INTENT, galleryIntent)
            putExtra(Intent.EXTRA_INITIAL_INTENTS, arrayOf(cameraIntent))
        }

        startActivityForResult(chooserIntent, FILE_CHOOSER_REQUEST_CODE)
        return true
    }

// 퍼미션 체크 함수
private fun checkPermissions() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) { // Android 14 (API 34)
        // Android 14부터는 ActivityResult 방식으로 요청
        permissionLauncher.launch(android.Manifest.permission.READ_MEDIA_IMAGES)
    } else {
        // Android 13 이하
        if (checkSelfPermission(android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED ||
            checkSelfPermission(android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {

            requestPermissions(
                arrayOf(
                    android.Manifest.permission.READ_EXTERNAL_STORAGE,
                    android.Manifest.permission.CAMERA
                ),
                PERMISSION_REQUEST_CODE
            )
        }
    }
}

//input file 관련
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    if (requestCode == FILE_CHOOSER_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            val results: Array<Uri>? = when {
                data?.data != null -> { // 앨범 선택
                    arrayOf(data.data!!)
                }
                cameraImageUri != null -> { // 카메라 촬영
                    arrayOf(cameraImageUri!!)
                }
                else -> null
            }
            filePathCallback?.onReceiveValue(results)
        } else {
            filePathCallback?.onReceiveValue(null)
        }
        filePathCallback = null
    }
}

 

AndroidManifest.xml

<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>

<!-- ✅ 카메라가 필수라고 명시 -->
<uses-feature android:name="android.hardware.camera" android:required="true" />

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="${applicationId}.fileprovider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths" />
</provider>

 

res > xml > file_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <cache-path name="images" path="." />
</paths>