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Merge pull request #289 from EveX1/feature/downsize-big-images

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Downsize big images
This commit is contained in:
Tibor Kaputa 2022-02-05 23:03:49 +01:00 • committed by GitHub
commit b2b8a38c7b
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32 changed files with 120 additions and 18 deletions
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17
app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
View file

@ -677,6 +677,9 @@ class ThreadActivity : SimpleActivity() {
if (compressedUri != null) {
attachmentSelections[originalUriString] = AttachmentSelection(compressedUri, false)
loadAttachmentPreview(attachmentView, compressedUri)
} else {
toast(R.string.compress_error)
removeAttachment(attachmentView, originalUriString)
}
checkSendMessageAvailability()
attachmentView.thread_attachment_progress.beGone()
@ -690,11 +693,7 @@ class ThreadActivity : SimpleActivity() {
val attachmentView = layoutInflater.inflate(R.layout.item_attachment, null).apply {
thread_attachments_wrapper.addView(this)
thread_remove_attachment.setOnClickListener {
thread_attachments_wrapper.removeView(this)
attachmentSelections.remove(originalUri)
if (attachmentSelections.isEmpty()) {
thread_attachments_holder.beGone()
}
removeAttachment(this, originalUri)
}
}
@ -733,6 +732,14 @@ class ThreadActivity : SimpleActivity() {
.into(attachmentView.thread_attachment_preview)
}
private fun removeAttachment(attachmentView: View, originalUri: String) {
thread_attachments_wrapper.removeView(attachmentView)
attachmentSelections.remove(originalUri)
if (attachmentSelections.isEmpty()) {
thread_attachments_holder.beGone()
}
}
private fun checkSendMessageAvailability() {
if (thread_type_message.text.isNotEmpty() || (attachmentSelections.isNotEmpty() && !attachmentSelections.values.any { it.isPending })) {
thread_send_message.isClickable = true

73
app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/ImageCompressor.kt
View file

@ -38,9 +38,19 @@ class ImageCompressor(private val context: Context) {
val byteArray = contentResolver.openInputStream(uri)?.readBytes()!!
var destinationFile = File(outputDirectory, System.currentTimeMillis().toString().plus(mimeType.getExtensionFromMimeType()))
destinationFile.writeBytes(byteArray)
val constraint = SizeConstraint(compressSize)
while (constraint.isSatisfied(destinationFile).not()) {
destinationFile = constraint.satisfy(destinationFile)
val sizeConstraint = SizeConstraint(compressSize)
val bitmap = loadBitmap(destinationFile)
// if image weight > * 2 targeted size: cut down resolution by 2
if (fileSize > 2 * compressSize) {
val resConstraint = ResolutionConstraint(bitmap.width / 2, bitmap.height / 2)
while (resConstraint.isSatisfied(destinationFile).not()) {
destinationFile = resConstraint.satisfy(destinationFile)
}
}
// do compression
while (sizeConstraint.isSatisfied(destinationFile).not()) {
destinationFile = sizeConstraint.satisfy(destinationFile)
}
callback.invoke(context.getMyFileUri(destinationFile))
} else {
@ -106,7 +116,11 @@ class ImageCompressor(private val context: Context) {
private var iteration: Int = 0
fun isSatisfied(imageFile: File): Boolean {
return imageFile.length() <= maxFileSize || iteration >= maxIteration
// If size requirement is not met and maxIteration is reached
if(iteration >= maxIteration && imageFile.length() >= maxFileSize) {
throw Exception("Unable to compress image to targeted size")
}
return imageFile.length() <= maxFileSize
}
fun satisfy(imageFile: File): File {
@ -116,4 +130,55 @@ class ImageCompressor(private val context: Context) {
}
}
private inner class ResolutionConstraint(private val width: Int, private val height: Int) {
private fun decodeSampledBitmapFromFile(imageFile: File, reqWidth: Int, reqHeight: Int): Bitmap {
return BitmapFactory.Options().run {
inJustDecodeBounds = true
BitmapFactory.decodeFile(imageFile.absolutePath, this)
inSampleSize = calculateInSampleSize(this, reqWidth, reqHeight)
inJustDecodeBounds = false
BitmapFactory.decodeFile(imageFile.absolutePath, this)
}
}
private fun calculateInSampleSize(options: BitmapFactory.Options, reqWidth: Int, reqHeight: Int): Int {
// Raw height and width of image
val (height: Int, width: Int) = options.run { outHeight to outWidth }
var inSampleSize = 1
if (height > reqHeight || width > reqWidth) {
val halfHeight: Int = height / 2
val halfWidth: Int = width / 2
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while (halfHeight / inSampleSize >= reqHeight && halfWidth / inSampleSize >= reqWidth) {
inSampleSize *= 2
}
}
return inSampleSize
}
fun isSatisfied(imageFile: File): Boolean {
return BitmapFactory.Options().run {
inJustDecodeBounds = true
BitmapFactory.decodeFile(imageFile.absolutePath, this)
calculateInSampleSize(this, width, height) <= 1
}
}
fun satisfy(imageFile: File): File {
return decodeSampledBitmapFromFile(imageFile, width, height).run {
determineImageRotation(imageFile, this).run {
overWrite(imageFile, this)
}
}
}
}
}