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Saving file in internal storage using Uri (obtained from Storage Access network)
How do I obtain crash-data from my Android application?Convert file: Uri to File in AndroidGet filename and path from URI from mediastoreIs there a way to get the source code from an APK file?Getting data from the server and loading new screen using AndroidTaking Picture via intent to internal (app) storage returns null for bitmapandroid.os.FileUriExposedException: file:///storage/emulated/0/test.txt exposed beyond app through Intent.getData()Saving an image after getting folder from Storage Access Framework UIError json parsingApp crash when use mobie data (3g/4g)
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I'm using Storage Access Network to pick file and save in internal storage so that app can use if in future.
I'm getting URI without any issues. It's something like content://com.android.providers.media.documents/document/image%3A141274
Problem comes when I'm trying to save image into internal directory. Code passes without crashes, image with same size is saved into internal directory (I can see it in device Explorer: https://take.ms/3TwBS).
But image itself is broken and can't be opened.
Here's code I'm using (after getting URI)
val destinationFile = File("$context.filesDir.absolutePath/$fileName")
try
val writer = FileWriter(destinationFile)
writer.append(readTextFromUri(it))
writer.flush()
writer.close()
catch (e: Exception)
e.printStackTrace()
@Throws(IOException::class)
private fun readTextFromUri(uri: Uri): String
val inputStream = activity!!.contentResolver.openInputStream(uri)
val reader = BufferedReader(InputStreamReader(inputStream))
val stringBuilder = StringBuilder()
var line: String? = null
while ( line = reader.readLine(); line () != null)
stringBuilder.append(line)
inputStream?.close()
reader.close()
return stringBuilder.toString()
android kotlin storage-access-framework asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
add a comment |
I'm using Storage Access Network to pick file and save in internal storage so that app can use if in future.
I'm getting URI without any issues. It's something like content://com.android.providers.media.documents/document/image%3A141274
Problem comes when I'm trying to save image into internal directory. Code passes without crashes, image with same size is saved into internal directory (I can see it in device Explorer: https://take.ms/3TwBS).
But image itself is broken and can't be opened.
Here's code I'm using (after getting URI)
val destinationFile = File("$context.filesDir.absolutePath/$fileName")
try
val writer = FileWriter(destinationFile)
writer.append(readTextFromUri(it))
writer.flush()
writer.close()
catch (e: Exception)
e.printStackTrace()
@Throws(IOException::class)
private fun readTextFromUri(uri: Uri): String
val inputStream = activity!!.contentResolver.openInputStream(uri)
val reader = BufferedReader(InputStreamReader(inputStream))
val stringBuilder = StringBuilder()
var line: String? = null
while ( line = reader.readLine(); line () != null)
stringBuilder.append(line)
inputStream?.close()
reader.close()
return stringBuilder.toString()
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
1
Use thecopyTo()extension function to copy the contents of anInputStreamto anOutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…
– CommonsWare
Mar 23 at 12:30
add a comment |
I'm using Storage Access Network to pick file and save in internal storage so that app can use if in future.
I'm getting URI without any issues. It's something like content://com.android.providers.media.documents/document/image%3A141274
Problem comes when I'm trying to save image into internal directory. Code passes without crashes, image with same size is saved into internal directory (I can see it in device Explorer: https://take.ms/3TwBS).
But image itself is broken and can't be opened.
Here's code I'm using (after getting URI)
val destinationFile = File("$context.filesDir.absolutePath/$fileName")
try
val writer = FileWriter(destinationFile)
writer.append(readTextFromUri(it))
writer.flush()
writer.close()
catch (e: Exception)
e.printStackTrace()
@Throws(IOException::class)
private fun readTextFromUri(uri: Uri): String
val inputStream = activity!!.contentResolver.openInputStream(uri)
val reader = BufferedReader(InputStreamReader(inputStream))
val stringBuilder = StringBuilder()
var line: String? = null
while ( line = reader.readLine(); line () != null)
stringBuilder.append(line)
inputStream?.close()
reader.close()
return stringBuilder.toString()
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
I'm using Storage Access Network to pick file and save in internal storage so that app can use if in future.
I'm getting URI without any issues. It's something like content://com.android.providers.media.documents/document/image%3A141274
Problem comes when I'm trying to save image into internal directory. Code passes without crashes, image with same size is saved into internal directory (I can see it in device Explorer: https://take.ms/3TwBS).
But image itself is broken and can't be opened.
Here's code I'm using (after getting URI)
val destinationFile = File("$context.filesDir.absolutePath/$fileName")
try
val writer = FileWriter(destinationFile)
writer.append(readTextFromUri(it))
writer.flush()
writer.close()
catch (e: Exception)
e.printStackTrace()
@Throws(IOException::class)
private fun readTextFromUri(uri: Uri): String
val inputStream = activity!!.contentResolver.openInputStream(uri)
val reader = BufferedReader(InputStreamReader(inputStream))
val stringBuilder = StringBuilder()
var line: String? = null
while ( line = reader.readLine(); line () != null)
stringBuilder.append(line)
inputStream?.close()
reader.close()
return stringBuilder.toString()
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
asked Mar 23 at 10:54
Александр БабичАлександр Бабич
145111
145111
Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
1
Use thecopyTo()extension function to copy the contents of anInputStreamto anOutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…
– CommonsWare
Mar 23 at 12:30
add a comment |
Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
1
Use thecopyTo()extension function to copy the contents of anInputStreamto anOutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…
– CommonsWare
Mar 23 at 12:30
Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
1
1
Use the
copyTo() extension function to copy the contents of an InputStream to an OutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…– CommonsWare
Mar 23 at 12:30
Use the
copyTo() extension function to copy the contents of an InputStream to an OutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…– CommonsWare
Mar 23 at 12:30
add a comment |
1 Answer
1
active
oldest
votes
As @CommonsWare described I should have used proper dealing with files, not texts.
Proper way to do:
private fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
val output = FileOutputStream(File("$filesDir.absoluteFile/magic.png"))
inputStream?.copyTo(output, 4 * 1024)
Or longer way (without extension functions)
fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
inputStream.use
val directory = getDir("test", Context.MODE_PRIVATE)
val file = File(directory, "correct.txt")
val output = FileOutputStream(file)
output.use
val buffer = ByteArray(4 * 1024) // or other buffer size
var read: Int = inputStream?.read(buffer) ?: -1
while (read != -1)
output.write(buffer, 0, read)
read = inputStream?.read(buffer) ?: -1
output.flush()
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
add a comment |
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1 Answer
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oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
As @CommonsWare described I should have used proper dealing with files, not texts.
Proper way to do:
private fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
val output = FileOutputStream(File("$filesDir.absoluteFile/magic.png"))
inputStream?.copyTo(output, 4 * 1024)
Or longer way (without extension functions)
fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
inputStream.use
val directory = getDir("test", Context.MODE_PRIVATE)
val file = File(directory, "correct.txt")
val output = FileOutputStream(file)
output.use
val buffer = ByteArray(4 * 1024) // or other buffer size
var read: Int = inputStream?.read(buffer) ?: -1
while (read != -1)
output.write(buffer, 0, read)
read = inputStream?.read(buffer) ?: -1
output.flush()
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
add a comment |
As @CommonsWare described I should have used proper dealing with files, not texts.
Proper way to do:
private fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
val output = FileOutputStream(File("$filesDir.absoluteFile/magic.png"))
inputStream?.copyTo(output, 4 * 1024)
Or longer way (without extension functions)
fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
inputStream.use
val directory = getDir("test", Context.MODE_PRIVATE)
val file = File(directory, "correct.txt")
val output = FileOutputStream(file)
output.use
val buffer = ByteArray(4 * 1024) // or other buffer size
var read: Int = inputStream?.read(buffer) ?: -1
while (read != -1)
output.write(buffer, 0, read)
read = inputStream?.read(buffer) ?: -1
output.flush()
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
add a comment |
As @CommonsWare described I should have used proper dealing with files, not texts.
Proper way to do:
private fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
val output = FileOutputStream(File("$filesDir.absoluteFile/magic.png"))
inputStream?.copyTo(output, 4 * 1024)
Or longer way (without extension functions)
fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
inputStream.use
val directory = getDir("test", Context.MODE_PRIVATE)
val file = File(directory, "correct.txt")
val output = FileOutputStream(file)
output.use
val buffer = ByteArray(4 * 1024) // or other buffer size
var read: Int = inputStream?.read(buffer) ?: -1
while (read != -1)
output.write(buffer, 0, read)
read = inputStream?.read(buffer) ?: -1
output.flush()
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
As @CommonsWare described I should have used proper dealing with files, not texts.
Proper way to do:
private fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
val output = FileOutputStream(File("$filesDir.absoluteFile/magic.png"))
inputStream?.copyTo(output, 4 * 1024)
Or longer way (without extension functions)
fun inputStreamToFile(uri: Uri)
val inputStream = contentResolver.openInputStream(uri)
inputStream.use
val directory = getDir("test", Context.MODE_PRIVATE)
val file = File(directory, "correct.txt")
val output = FileOutputStream(file)
output.use
val buffer = ByteArray(4 * 1024) // or other buffer size
var read: Int = inputStream?.read(buffer) ?: -1
while (read != -1)
output.write(buffer, 0, read)
read = inputStream?.read(buffer) ?: -1
output.flush()
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
answered Mar 23 at 12:38
Александр БабичАлександр Бабич
145111
145111
add a comment |
add a comment |
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Your code is for reading and writing text. Your question implies that you are reading and writing images. Images are not text.
– CommonsWare
Mar 23 at 11:26
Correct, I already got to the point that content is broken during copying. So the right question is how to properly copy to File using InputStream.
– Александр Бабич
Mar 23 at 12:24
1
Use the
copyTo()extension function to copy the contents of anInputStreamto anOutputStream: kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/…– CommonsWare
Mar 23 at 12:30