fix passing bitmap thumbnail after IMAGE_CAPTURE intent

- add a new BitmapOutput, returned from the MediaOutputHelper when no output URI is specified in an IMAGE_CAPTURE intent
- in this format, take the picture without actually saving it and return the bitmap
- this behaviour is consistent with the implementation described in the official Android docs https://developer.android.com/training/camera/photobasics#TaskPhotoView

app/src/main/kotlin/com/simplemobiletools/camera/activities/MainActivity.kt

@@ -2,18 +2,14 @@ package com.simplemobiletools.camera.activities
 
 import android.app.Activity
 import android.content.Intent
+import android.graphics.Bitmap
 import android.hardware.SensorManager
 import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
 import android.provider.MediaStore
 import android.util.Log
-import android.util.Size
-import android.view.KeyEvent
-import android.view.OrientationEventListener
-import android.view.View
-import android.view.Window
-import android.view.WindowManager
+import android.view.*
 import android.widget.RelativeLayout
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.engine.DiskCacheStrategy
@@ -22,38 +18,17 @@ import com.bumptech.glide.request.RequestOptions
 import com.simplemobiletools.camera.BuildConfig
 import com.simplemobiletools.camera.R
 import com.simplemobiletools.camera.extensions.config
-import com.simplemobiletools.camera.helpers.FLASH_OFF
-import com.simplemobiletools.camera.helpers.FLASH_ON
-import com.simplemobiletools.camera.helpers.ORIENT_LANDSCAPE_LEFT
-import com.simplemobiletools.camera.helpers.ORIENT_LANDSCAPE_RIGHT
-import com.simplemobiletools.camera.helpers.ORIENT_PORTRAIT
-import com.simplemobiletools.camera.helpers.PhotoProcessor
+import com.simplemobiletools.camera.helpers.*
 import com.simplemobiletools.camera.implementations.CameraXInitializer
 import com.simplemobiletools.camera.implementations.CameraXPreviewListener
 import com.simplemobiletools.camera.implementations.MyCameraImpl
 import com.simplemobiletools.camera.interfaces.MyPreview
 import com.simplemobiletools.camera.views.FocusCircleView
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.BROADCAST_REFRESH_MEDIA
-import com.simplemobiletools.commons.helpers.PERMISSION_CAMERA
-import com.simplemobiletools.commons.helpers.PERMISSION_RECORD_AUDIO
-import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
-import com.simplemobiletools.commons.helpers.REFRESH_PATH
-import com.simplemobiletools.commons.helpers.ensureBackgroundThread
+import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.Release
 import java.util.concurrent.TimeUnit
-import kotlinx.android.synthetic.main.activity_main.btn_holder
-import kotlinx.android.synthetic.main.activity_main.capture_black_screen
-import kotlinx.android.synthetic.main.activity_main.change_resolution
-import kotlinx.android.synthetic.main.activity_main.last_photo_video_preview
-import kotlinx.android.synthetic.main.activity_main.settings
-import kotlinx.android.synthetic.main.activity_main.shutter
-import kotlinx.android.synthetic.main.activity_main.toggle_camera
-import kotlinx.android.synthetic.main.activity_main.toggle_flash
-import kotlinx.android.synthetic.main.activity_main.toggle_photo_video
-import kotlinx.android.synthetic.main.activity_main.video_rec_curr_timer
-import kotlinx.android.synthetic.main.activity_main.preview_view
-import kotlinx.android.synthetic.main.activity_main.view_holder
+import kotlinx.android.synthetic.main.activity_main.*
 
 class MainActivity : SimpleActivity(), PhotoProcessor.MediaSavedListener, CameraXPreviewListener {
     private val TAG = "MainActivity"
@@ -562,28 +537,35 @@ class MainActivity : SimpleActivity(), PhotoProcessor.MediaSavedListener, Camera
         }
     }
 
-    override fun onMediaCaptured(uri: Uri) {
+    override fun onMediaSaved(uri: Uri) {
         loadLastTakenMedia(uri)
-        ensureBackgroundThread {
-            if (isImageCaptureIntent()) {
-                val bitmap = contentResolver.loadThumbnail(uri, Size(30, 30), null)
-                Intent().apply {
-                    data = uri
-                    flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
-                    putExtra("data", bitmap)
-                    setResult(Activity.RESULT_OK, this)
-                }
-                Log.w(TAG, "onMediaCaptured: exiting uri=$uri")
-                finish()
-            } else if (isVideoCaptureIntent()) {
-                Intent().apply {
-                    data = uri
-                    flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
-                    setResult(Activity.RESULT_OK, this)
-                }
-                Log.w(TAG, "onMediaCaptured: video exiting uri=$uri")
-                finish()
+        if (isImageCaptureIntent()) {
+            Intent().apply {
+                data = uri
+                flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
+                setResult(Activity.RESULT_OK, this)
             }
+            Log.w(TAG, "onMediaCaptured: exiting uri=$uri")
+            finish()
+        } else if (isVideoCaptureIntent()) {
+            Intent().apply {
+                data = uri
+                flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
+                setResult(Activity.RESULT_OK, this)
+            }
+            Log.w(TAG, "onMediaCaptured: video exiting uri=$uri")
+            finish()
+        }
+    }
+
+    override fun onImageCaptured(bitmap: Bitmap) {
+        if (isImageCaptureIntent()) {
+            Intent().apply {
+                putExtra("data", bitmap)
+                setResult(Activity.RESULT_OK, this)
+            }
+            Log.w(TAG, "onImageCaptured: exiting bitmap size=${bitmap.byteCount}")
+            finish()
         }
     }
 

app/src/main/kotlin/com/simplemobiletools/camera/extensions/ImageProxy.kt

@@ -0,0 +1,11 @@
+package com.simplemobiletools.camera.extensions
+
+import androidx.camera.core.ImageProxy
+
+// Only for JPEG format
+fun ImageProxy.toJpegByteArray(): ByteArray {
+    val buffer = planes.first().buffer
+    val jpegImageData = ByteArray(buffer.remaining())
+    buffer[jpegImageData]
+    return jpegImageData
+}

app/src/main/kotlin/com/simplemobiletools/camera/helpers/BitmapUtils.kt

@@ -0,0 +1,73 @@
+package com.simplemobiletools.camera.helpers
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.util.Log
+import kotlin.math.ceil
+import kotlin.math.floor
+import kotlin.math.sqrt
+
+//inspired by https://android.googlesource.com/platform/packages/apps/Camera2/+/refs/heads/master/src/com/android/camera/util/CameraUtil.java#244
+object BitmapUtils {
+    private const val TAG = "BitmapUtils"
+    private const val INLINE_BITMAP_MAX_PIXEL_NUM = 50 * 1024
+
+    fun makeBitmap(jpegData: ByteArray, maxNumOfPixels: Int = INLINE_BITMAP_MAX_PIXEL_NUM): Bitmap? {
+        return try {
+            val options = BitmapFactory.Options()
+            options.inJustDecodeBounds = true
+
+            BitmapFactory.decodeByteArray(jpegData, 0, jpegData.size, options)
+
+            if (options.mCancel || options.outWidth == -1 || options.outHeight == -1) {
+                return null
+            }
+            options.inSampleSize = computeSampleSize(options, -1, maxNumOfPixels)
+            options.inJustDecodeBounds = false
+            options.inDither = false
+            options.inPreferredConfig = Bitmap.Config.ARGB_8888
+            BitmapFactory.decodeByteArray(
+                jpegData, 0, jpegData.size,
+                options
+            )
+        } catch (ex: OutOfMemoryError) {
+            Log.e(TAG, "Got oom exception ", ex)
+            null
+        }
+    }
+
+    private fun computeSampleSize(options: BitmapFactory.Options, minSideLength: Int, maxNumOfPixels: Int): Int {
+        val initialSize = computeInitialSampleSize(
+            options, minSideLength,
+            maxNumOfPixels
+        )
+        var roundedSize: Int
+        if (initialSize <= 8) {
+            roundedSize = 1
+            while (roundedSize < initialSize) {
+                roundedSize = roundedSize shl 1
+            }
+        } else {
+            roundedSize = (initialSize + 7) / 8 * 8
+        }
+        return roundedSize
+    }
+
+    private fun computeInitialSampleSize(options: BitmapFactory.Options, minSideLength: Int, maxNumOfPixels: Int): Int {
+        val w = options.outWidth.toDouble()
+        val h = options.outHeight.toDouble()
+        val lowerBound = if (maxNumOfPixels < 0) 1 else ceil(sqrt(w * h / maxNumOfPixels)).toInt()
+        val upperBound = if (minSideLength < 0) 128 else floor(w / minSideLength).coerceAtMost(floor(h / minSideLength)).toInt()
+        if (upperBound < lowerBound) {
+            // return the larger one when there is no overlapping zone.
+            return lowerBound
+        }
+        return if (maxNumOfPixels < 0 && minSideLength < 0) {
+            1
+        } else if (minSideLength < 0) {
+            lowerBound
+        } else {
+            upperBound
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/camera/helpers/MediaOutputHelper.kt

@@ -11,20 +11,7 @@ import com.simplemobiletools.camera.extensions.getOutputMediaFile
 import com.simplemobiletools.camera.extensions.getRandomMediaName
 import com.simplemobiletools.camera.models.MediaOutput
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
-import com.simplemobiletools.commons.extensions.createDocumentUriFromRootTree
-import com.simplemobiletools.commons.extensions.createDocumentUriUsingFirstParentTreeUri
-import com.simplemobiletools.commons.extensions.getAndroidSAFUri
-import com.simplemobiletools.commons.extensions.getDocumentFile
-import com.simplemobiletools.commons.extensions.getDoesFilePathExist
-import com.simplemobiletools.commons.extensions.getFileOutputStreamSync
-import com.simplemobiletools.commons.extensions.getFilenameFromPath
-import com.simplemobiletools.commons.extensions.getMimeType
-import com.simplemobiletools.commons.extensions.hasProperStoredAndroidTreeUri
-import com.simplemobiletools.commons.extensions.hasProperStoredFirstParentUri
-import com.simplemobiletools.commons.extensions.hasProperStoredTreeUri
-import com.simplemobiletools.commons.extensions.isAccessibleWithSAFSdk30
-import com.simplemobiletools.commons.extensions.isRestrictedSAFOnlyRoot
-import com.simplemobiletools.commons.extensions.needsStupidWritePermissions
+import com.simplemobiletools.commons.extensions.*
 import java.io.File
 import java.io.OutputStream
 
@@ -56,7 +43,7 @@ class MediaOutputHelper(
                     getMediaStoreOutput(isPhoto = true)
                 }
             } else {
-                getMediaStoreOutput(isPhoto = true)
+                MediaOutput.BitmapOutput
             }
         } else {
             getOutputStreamMediaOutput() ?: getMediaStoreOutput(isPhoto = true)

app/src/main/kotlin/com/simplemobiletools/camera/implementations/CameraXPreview.kt

@@ -5,34 +5,14 @@ import android.content.Context
 import android.hardware.SensorManager
 import android.hardware.display.DisplayManager
 import android.util.Log
-import android.view.Display
-import android.view.GestureDetector
+import android.view.*
 import android.view.GestureDetector.SimpleOnGestureListener
-import android.view.MotionEvent
-import android.view.OrientationEventListener
-import android.view.ScaleGestureDetector
-import android.view.Surface
 import androidx.appcompat.app.AppCompatActivity
-import androidx.camera.core.AspectRatio
-import androidx.camera.core.Camera
-import androidx.camera.core.CameraSelector
-import androidx.camera.core.CameraState
-import androidx.camera.core.DisplayOrientedMeteringPointFactory
-import androidx.camera.core.FocusMeteringAction
-import androidx.camera.core.ImageCapture
-import androidx.camera.core.ImageCapture.CAPTURE_MODE_MAXIMIZE_QUALITY
-import androidx.camera.core.ImageCapture.FLASH_MODE_AUTO
-import androidx.camera.core.ImageCapture.FLASH_MODE_OFF
-import androidx.camera.core.ImageCapture.FLASH_MODE_ON
-import androidx.camera.core.ImageCapture.Metadata
-import androidx.camera.core.ImageCapture.OnImageSavedCallback
-import androidx.camera.core.ImageCapture.OutputFileOptions
-import androidx.camera.core.ImageCapture.OutputFileResults
-import androidx.camera.core.ImageCaptureException
-import androidx.camera.core.Preview
-import androidx.camera.core.UseCase
+import androidx.camera.core.*
+import androidx.camera.core.ImageCapture.*
 import androidx.camera.lifecycle.ProcessCameraProvider
 import androidx.camera.video.*
+import androidx.camera.video.VideoCapture
 import androidx.camera.view.PreviewView
 import androidx.core.content.ContextCompat
 import androidx.core.view.doOnLayout
@@ -359,29 +339,53 @@ class CameraXPreview(
         }
 
         val mediaOutput = mediaOutputHelper.getImageMediaOutput()
-        val outputOptionsBuilder = when (mediaOutput) {
-            is MediaOutput.MediaStoreOutput -> OutputFileOptions.Builder(contentResolver, mediaOutput.contentUri, mediaOutput.contentValues)
-            is MediaOutput.OutputStreamMediaOutput -> OutputFileOptions.Builder(mediaOutput.outputStream)
-            else -> throw IllegalArgumentException("Unexpected option for image")
+
+        if (mediaOutput is MediaOutput.BitmapOutput) {
+            imageCapture.takePicture(mainExecutor, object : ImageCapture.OnImageCapturedCallback() {
+                override fun onCaptureSuccess(image: ImageProxy) {
+                    listener.toggleBottomButtons(false)
+                    val bitmap = BitmapUtils.makeBitmap(image.toJpegByteArray())
+                    if (bitmap != null) {
+                        listener.onImageCaptured(bitmap)
+                    } else {
+                        cameraErrorHandler.handleImageCaptureError(ImageCapture.ERROR_CAPTURE_FAILED)
+                    }
+                }
+
+                override fun onError(exception: ImageCaptureException) {
+                    handleImageCaptureError(exception)
+                }
+            })
+        } else {
+            val outputOptionsBuilder = when (mediaOutput) {
+                is MediaOutput.MediaStoreOutput -> OutputFileOptions.Builder(contentResolver, mediaOutput.contentUri, mediaOutput.contentValues)
+                is MediaOutput.OutputStreamMediaOutput -> OutputFileOptions.Builder(mediaOutput.outputStream)
+                is MediaOutput.BitmapOutput -> throw IllegalStateException("Cannot produce an OutputFileOptions for a bitmap output")
+                else -> throw IllegalArgumentException("Unexpected option for image ")
+            }
+
+            val outputOptions = outputOptionsBuilder.setMetadata(metadata).build()
+
+            imageCapture.takePicture(outputOptions, mainExecutor, object : OnImageSavedCallback {
+                override fun onImageSaved(outputFileResults: OutputFileResults) {
+                    listener.toggleBottomButtons(false)
+                    listener.onMediaSaved(mediaOutput.uri ?: outputFileResults.savedUri!!)
+                }
+
+                override fun onError(exception: ImageCaptureException) {
+                    handleImageCaptureError(exception)
+                }
+            })
         }
-
-        val outputOptions = outputOptionsBuilder.setMetadata(metadata).build()
-
-        imageCapture.takePicture(outputOptions, mainExecutor, object : OnImageSavedCallback {
-            override fun onImageSaved(outputFileResults: OutputFileResults) {
-                listener.toggleBottomButtons(false)
-                listener.onMediaCaptured(mediaOutput.uri ?: outputFileResults.savedUri!!)
-            }
-
-            override fun onError(exception: ImageCaptureException) {
-                Log.e(TAG, "Error", exception)
-                listener.toggleBottomButtons(false)
-                cameraErrorHandler.handleImageCaptureError(exception.imageCaptureError)
-            }
-        })
         playShutterSoundIfEnabled()
     }
 
+    private fun handleImageCaptureError(exception: ImageCaptureException) {
+        Log.e(TAG, "Error", exception)
+        listener.toggleBottomButtons(false)
+        cameraErrorHandler.handleImageCaptureError(exception.imageCaptureError)
+    }
+
     override fun initPhotoMode() {
         isPhotoCapture = true
         startCamera()
@@ -441,7 +445,7 @@ class CameraXPreview(
                             Log.e(TAG, "recording failed:", recordEvent.cause)
                             cameraErrorHandler.handleVideoRecordingError(recordEvent.error)
                         } else {
-                            listener.onMediaCaptured(mediaOutput.uri ?: recordEvent.outputResults.outputUri)
+                            listener.onMediaSaved(mediaOutput.uri ?: recordEvent.outputResults.outputUri)
                         }
                     }
                 }

app/src/main/kotlin/com/simplemobiletools/camera/implementations/CameraXPreviewListener.kt

@@ -1,5 +1,6 @@
 package com.simplemobiletools.camera.implementations
 
+import android.graphics.Bitmap
 import android.net.Uri
 
 interface CameraXPreviewListener {
@@ -8,7 +9,8 @@ interface CameraXPreviewListener {
     fun setFlashAvailable(available: Boolean)
     fun onChangeCamera(frontCamera: Boolean)
     fun toggleBottomButtons(hide:Boolean)
-    fun onMediaCaptured(uri: Uri)
+    fun onMediaSaved(uri: Uri)
+    fun onImageCaptured(bitmap: Bitmap)
     fun onChangeFlashMode(flashMode: Int)
     fun onVideoRecordingStarted()
     fun onVideoRecordingStopped()

app/src/main/kotlin/com/simplemobiletools/camera/models/MediaOutput.kt

@@ -22,4 +22,6 @@ sealed class MediaOutput(
         val fileDescriptor: ParcelFileDescriptor,
         override val uri: Uri,
     ) : MediaOutput(uri)
+
+    object BitmapOutput : MediaOutput(null)
 }

app/src/main/kotlin/com/simplemobiletools/camera/models/VideoQuality.kt

@@ -9,10 +9,9 @@ enum class VideoQuality(val width: Int, val height: Int) {
     HD(1280, 720),
     SD(720, 480);
 
-
     val pixels: Int = width * height
 
-    val megaPixels: String =  String.format("%.1f", (width * height.toFloat()) / VideoQuality.ONE_MEGA_PIXELS)
+    val megaPixels: String =  String.format("%.1f", (width * height.toFloat()) / VideoQuality.ONE_MEGA_PIXEL)
 
     val ratio = width / height.toFloat()
 
@@ -54,6 +53,6 @@ enum class VideoQuality(val width: Int, val height: Int) {
     }
 
     companion object {
-        private const val ONE_MEGA_PIXELS = 1000000
+        private const val ONE_MEGA_PIXEL = 1000000
     }
 }