Workaround for Android emulator camera on some hardware (#2955)

experimental/examples/imageviewer/shared/build.gradle.kts

@@ -43,12 +43,12 @@ kotlin {
         }
         val androidMain by getting {
             dependencies {
-                api("androidx.activity:activity-compose:1.6.1")
+                api("androidx.activity:activity-compose:1.7.0")
                 api("androidx.appcompat:appcompat:1.6.1")
                 api("androidx.core:core-ktx:1.9.0")
-                implementation("androidx.camera:camera-camera2:1.2.1")
+                implementation("androidx.camera:camera-camera2:1.2.2")
-                implementation("androidx.camera:camera-lifecycle:1.2.1")
+                implementation("androidx.camera:camera-lifecycle:1.2.2")
-                implementation("androidx.camera:camera-view:1.2.1")
+                implementation("androidx.camera:camera-view:1.2.2")
                 implementation("com.google.accompanist:accompanist-permissions:0.29.2-rc")
                 implementation("com.google.android.gms:play-services-maps:18.1.0")
                 implementation("com.google.android.gms:play-services-location:21.0.1")
@@ -57,7 +57,7 @@ kotlin {
         }
         val iosMain by getting {
             dependencies {
-                // TODO: update coroutines (or remove, if 1.8.0 will be presented in Compose)
+                // Kotlin Coroutines 1.7.0 contains Dispatchers.IO
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.0-Beta")
             }
         }

experimental/examples/imageviewer/shared/src/androidMain/kotlin/example/imageviewer/view/CameraView.android.kt

@@ -19,6 +19,7 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.unit.dp
@@ -32,6 +33,10 @@ import example.imageviewer.*
 import example.imageviewer.model.GpsPosition
 import example.imageviewer.model.PictureData
 import example.imageviewer.model.createCameraPictureData
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import org.jetbrains.compose.resources.ExperimentalResourceApi
+import org.jetbrains.compose.resources.resource
 import java.nio.ByteBuffer
 import java.util.*
 import java.util.concurrent.Executors
@@ -62,6 +67,7 @@ internal actual fun CameraView(
     }
 }
 
+@OptIn(ExperimentalResourceApi::class)
 @SuppressLint("MissingPermission")
 @Composable
 private fun CameraWithGrantedPermission(
@@ -77,6 +83,7 @@ private fun CameraWithGrantedPermission(
     val cameraSelector = CameraSelector.Builder()
         .requireLensFacing(CameraSelector.LENS_FACING_BACK)
         .build()
+    val viewScope = rememberCoroutineScope()
 
     LaunchedEffect(Unit) {
         val cameraProvider = suspendCoroutine<ProcessCameraProvider> { continuation ->
@@ -102,12 +109,7 @@ private fun CameraWithGrantedPermission(
         Button(
             enabled = !capturePhotoStarted,
             onClick = {
-                capturePhotoStarted = true
+                fun addLocationInfoAndReturnResult(imageBitmap: ImageBitmap) {
-                imageCapture.takePicture(executor, object : OnImageCapturedCallback() {
-                    override fun onCaptureSuccess(image: ImageProxy) {
-                        val byteArray: ByteArray = image.planes[0].buffer.toByteArray()
-                        val imageBitmap = byteArray.toImageBitmap()
-                        image.close()
                     fun sendToStorage(gpsPosition: GpsPosition) {
                         onCapture(
                             createCameraPictureData(
@@ -119,21 +121,38 @@ private fun CameraWithGrantedPermission(
                         )
                         capturePhotoStarted = false
                     }
-
-                        val lastLocation: Task<Location> =
                     LocationServices.getFusedLocationProviderClient(context)
-                                .getCurrentLocation(
+                        .getCurrentLocation(CurrentLocationRequest.Builder().build(), null)
-                                    CurrentLocationRequest.Builder().build(),
+                        .apply {
-                                    null
+                            addOnSuccessListener {
-                                )
-                        lastLocation.addOnSuccessListener {
                                 sendToStorage(GpsPosition(it.latitude, it.longitude))
                             }
-                        lastLocation.addOnFailureListener {
+                            addOnFailureListener {
                                 sendToStorage(GpsPosition(0.0, 0.0))
                             }
                         }
+                }
+
+                capturePhotoStarted = true
+                imageCapture.takePicture(executor, object : OnImageCapturedCallback() {
+                    override fun onCaptureSuccess(image: ImageProxy) {
+                        val byteArray: ByteArray = image.planes[0].buffer.toByteArray()
+                        val imageBitmap = byteArray.toImageBitmap()
+                        image.close()
+                        addLocationInfoAndReturnResult(imageBitmap)
+                    }
                 })
+                viewScope.launch {
+                    // TODO: There is a known issue with Android emulator
+                    //  https://partnerissuetracker.corp.google.com/issues/161034252
+                    //  After 5 seconds delay, let's assume that the bug appears and publish a prepared photo
+                    delay(5000)
+                    if (capturePhotoStarted) {
+                        addLocationInfoAndReturnResult(
+                            resource("android-emulator-photo.jpg").readBytes().toImageBitmap()
+                        )
+                    }
+                }
             }) {
             Text(LocalLocalization.current.takePhoto, color = Color.White)
         }