Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8239b139 authored by cketti's avatar cketti
Browse files

Add `CameraPreviewView`

parent 78c9b13f

feature/migration/qrcode/build.gradle.kts

+4 −0
Original line number Diff line number Diff line
@@ -14,6 +14,10 @@ dependencies { 
    implementation(projects.core.ui.compose.designsystem)

    debugImplementation(projects.core.ui.compose.theme2.k9mail)



    implementation(libs.androidx.camera.core)

    implementation(libs.androidx.camera.camera2)

    implementation(libs.androidx.camera.lifecycle)

    implementation(libs.androidx.camera.view)

    implementation(libs.moshi)

    implementation(libs.timber)

feature/migration/qrcode/src/main/kotlin/app/k9mail/feature/migration/qrcode/ui/CameraPreviewView.kt

0 → 100644
+81 −0
Original line number Diff line number Diff line 
package app.k9mail.feature.migration.qrcode.ui



import android.content.Context

import androidx.camera.core.CameraSelector

import androidx.camera.core.Preview

import androidx.camera.lifecycle.ProcessCameraProvider

import androidx.camera.view.PreviewView

import androidx.compose.foundation.background

import androidx.compose.runtime.Composable

import androidx.compose.runtime.LaunchedEffect

import androidx.compose.runtime.remember

import androidx.compose.ui.Modifier

import androidx.compose.ui.graphics.Color

import androidx.compose.ui.platform.LocalContext

import androidx.compose.ui.platform.LocalInspectionMode

import androidx.compose.ui.text.style.TextAlign

import androidx.compose.ui.viewinterop.AndroidView

import androidx.core.content.ContextCompat

import androidx.lifecycle.compose.LocalLifecycleOwner

import app.k9mail.core.ui.compose.designsystem.atom.text.TextTitleLarge

import kotlin.coroutines.resume

import kotlin.coroutines.suspendCoroutine



@Composable

internal fun CameraPreviewView(

    modifier: Modifier = Modifier,

) {

    if (LocalInspectionMode.current) {

        TextTitleLarge(

            text = "Camera preview",

            textAlign = TextAlign.Center,

            modifier = modifier.background(Color.Cyan),

        )

        return

    }



    val lensFacing = CameraSelector.LENS_FACING_BACK



    val lifecycleOwner = LocalLifecycleOwner.current

    val context = LocalContext.current



    val previewView = remember {

        PreviewView(context).apply {

            scaleType = PreviewView.ScaleType.FIT_CENTER

        }

    }



    LaunchedEffect(lensFacing) {

        val cameraProvider = getProcessCameraProvider(context)



        val cameraxSelector = CameraSelector.Builder().requireLensFacing(lensFacing).build()

        val preview = Preview.Builder().build()



        cameraProvider.unbindAll()

        cameraProvider.bindToLifecycle(lifecycleOwner, cameraxSelector, preview)



        preview.setSurfaceProvider(previewView.surfaceProvider)

    }



    AndroidView(

        factory = { previewView },

        modifier = modifier,

    )

}



/**

 * Suspending function to retrieve a [ProcessCameraProvider].

 */

private suspend fun getProcessCameraProvider(context: Context): ProcessCameraProvider {

    return suspendCoroutine { continuation ->

        val mainExecutor = ContextCompat.getMainExecutor(context)



        ProcessCameraProvider.getInstance(context).also { processCameraProvider ->

            val listener = Runnable {

                continuation.resume(processCameraProvider.get())

            }



            processCameraProvider.addListener(listener, mainExecutor)

        }

    }

}

feature/migration/qrcode/src/main/kotlin/app/k9mail/feature/migration/qrcode/ui/QrCodeScannerView.kt

+7 −5
Original line number Diff line number Diff line 
package app.k9mail.feature.migration.qrcode.ui



import androidx.compose.foundation.layout.Column

import androidx.compose.foundation.layout.fillMaxSize

import androidx.compose.runtime.Composable

import androidx.compose.ui.Modifier

import androidx.compose.ui.platform.testTag

import app.k9mail.core.ui.compose.designsystem.atom.text.TextBodyLarge



@Composable

internal fun QrCodeScannerView() {

    TextBodyLarge(

        text = "TODO: implement",

        modifier = Modifier.testTag("QrCodeScannerView"),

    Column(modifier = Modifier.testTag("QrCodeScannerView")) {

        CameraPreviewView(

            modifier = Modifier.fillMaxSize(),

        )

    }

}

gradle/libs.versions.toml

+5 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ androidxActivity = "1.9.2" 
androidxAnnotation = "1.8.2"

androidxAppCompat = "1.7.0"

androidxBiometric = "1.1.0"

androidxCamera = "1.3.1"

# https://developer.android.com/jetpack/compose/bom/bom-mapping

androidxComposeBom = "2024.09.00"

androidxConstraintLayout = "2.1.4"
@@ -122,6 +123,10 @@ androidx-activity-compose = { module = "androidx.activity:activity-compose", ver 
androidx-annotation = { module = "androidx.annotation:annotation", version.ref = "androidxAnnotation" }

androidx-appcompat = { module = "androidx.appcompat:appcompat", version.ref = "androidxAppCompat" }

androidx-biometric = { module = "androidx.biometric:biometric", version.ref = "androidxBiometric" }

androidx-camera-core = { module = "androidx.camera:camera-core", version.ref = "androidxCamera" }

androidx-camera-camera2 = { module = "androidx.camera:camera-camera2", version.ref = "androidxCamera" }

androidx-camera-view = { module = "androidx.camera:camera-view", version.ref = "androidxCamera" }

androidx-camera-lifecycle = { module = "androidx.camera:camera-lifecycle", version.ref = "androidxCamera" }

androidx-compose-bom = { module = "androidx.compose:compose-bom", version.ref = "androidxComposeBom" }

androidx-compose-foundation = { module = "androidx.compose.foundation:foundation" }

androidx-compose-material-icons-extended = { module = "androidx.compose.material:material-icons-extended" }