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read.txt
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read.txt
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pickImageUsingSaf()
val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
//intent.type = "image/*"
intent.type = "*/*"
//If you not specify all mimetype will be taken
//val mimeTypes = arrayOf(
// "image/png",
// "image/jpg",
// "image/jpeg"
// )
//intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes)
intent.addCategory(Intent.CATEGORY_OPENABLE)
safLauncher.launch(intent)
private val safLauncher =
registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
val uri = it?.data?.data
if (uri != null) {
/**
* Take a persistable URI permission grant that has been offered. Once
* taken, the permission grant will be remembered across device reboots.
*/
/*contentResolver.takePersistableUriPermission(
uri,
Intent.FLAG_GRANT_READ_URI_PERMISSION
)*/
selectedImage.value = uri.toString()
} else {
/*setError(R.string.error_failed_pick_gallery_image)*/
}
}
=============================================
pickImageFromCamera()
val dir =
getExternalFilesDir(Environment.DIRECTORY_MOVIES)!! // Android>Data>(packagename)>files>(Your file saved here)*/
/* val dir =
getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS) // Android>Data>(packagename)>files>DCIM>(Your file saved here)*/
//val dir = externalCacheDir!! // Android>Data>(packagename)>cache>(Your file saved here)*/
//val dir = externalCacheDir
val folder = File(dir.absolutePath)
folder.mkdirs()
val file = File(folder, "${System.currentTimeMillis()}.jpg")
if (file.exists())
file.delete()
file.createNewFile()
imageUri = FileProvider.getUriForFile(
this,
"$packageName.provider",
file
)
/*imgPath = file.absolutePath*/
val takePhotoIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
takePhotoIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri)
cameraLauncher.launch(takePhotoIntent)
private val cameraLauncher =
registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
selectedImage.value = imageUri.toString()
}
============================================================
saveImageToMediaStore()
if (File(directory).exists().not()) {
File(directory).mkdir()
}
val imageOutStream: OutputStream
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
val values = ContentValues().apply {
put(MediaStore.Images.Media.DISPLAY_NAME, filename)
put(MediaStore.Images.Media.MIME_TYPE, mimeType)
put(MediaStore.Images.Media.RELATIVE_PATH, directory)
}
contentResolver.run {
val uri =
contentResolver.insert(mediaContentUri, values)
?: return
imageOutStream = openOutputStream(uri) ?: return
}
} else {
val imagePath = Environment.getExternalStoragePublicDirectory(directory).absolutePath
val image = File(imagePath, filename)
imageOutStream = FileOutputStream(image)
}
/*imageOutStream.use { bitmap.compress(Bitmap.CompressFormat.JPEG, 100, it) }*/
val inputStream = contentResolver.openInputStream(currentUri)
copy(inputStream, imageOutStream)
=================================
pickImageFromMediaStore()
//It will display images which created by own app
/*mediaStoreLauncher.launch(
Intent(
this@ScopedStorageActivity,
MediaSelectionActivity::class.java
)
)*/
//If you want to display all shared images then it requires permission
mediaStorePermission.launch(Manifest.permission.READ_EXTERNAL_STORAGE)
private val mediaStoreLauncher =
registerForActivityResult(ActivityResultContracts.StartActivityForResult())
{
imageUri = Uri.parse(it.data?.getStringExtra("media") ?: "")
selectedImage.value = imageUri.toString()
}
private val mediaStorePermission =
registerForActivityResult(ActivityResultContracts.RequestPermission()) {
if (it) {
mediaStoreLauncher.launch(
Intent(
this@ScopedStorageActivity,
MediaSelectionActivity::class.java
)
)
}
}
=============================================
saveFileUsingSaf()
val intent = Intent(Intent.ACTION_CREATE_DOCUMENT).apply {
addCategory(Intent.CATEGORY_OPENABLE)
//type = "text/plain"
type = "application/pdf"
putExtra(Intent.EXTRA_TITLE, "Obs.pdf")
putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.DIRECTORY_DOCUMENTS)
}
saveFileUsingSAFLauncher.launch(intent)
private val saveFileUsingSAFLauncher =
registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
contentResolver.openOutputStream(it.data?.data!!).use { it ->
//it?.write("teststring here".toByteArray(Charsets.UTF_8))
copyLarge(assets.open("Obs.pdf"), it!!)
}
}
============================
cropImage()
val dir = File(filesDir, "Cropped")
if (dir.exists().not())
dir.mkdir()
val file = File(dir, "cropped.jpg")
cropLauncher.launch(
UCrop.of(Uri.parse(selectedImage.value), Uri.fromFile(file))
.getIntent(this)
)
private val cropLauncher =
registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
if (it.resultCode == Activity.RESULT_OK) {
val croppedUri = UCrop.getOutput(it.data!!)
imageUri = croppedUri!!
selectedImage.value = croppedUri.toString()
}
}
=======================================
share()
//The exception will thrown FileUriExposedException
//So instead of file:// we need to provide content:// uri's
//this is only after Android N before it works with file://
val uri = when (imageUri.scheme) {
ContentResolver.SCHEME_FILE -> FileProvider.getUriForFile(
this,
"$packageName.provider",
File(imageUri.path!!)
)
else -> imageUri
}
val intent = Intent(Intent.ACTION_SEND)
intent.type = "image/jpeg"
intent.putExtra(Intent.EXTRA_STREAM, uri)
startActivity(Intent.createChooser(intent, "Share Image"))
=============
fun openSettingManageExternalStorage() {
val intent = Intent(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION)
startActivity(intent)
}