In Android 9, even if you specify MIME_TYPE of MediaStore as "video/mp4" and DISPLAY_NAME as "fileName.mp4", it will be saved as a 3gp file.
In Android 10, it works without problems.
How to solve this problem
val contentValues = ContentValues().apply {
put(MediaStore.Video.Media.TITLE, fileName)
put(MediaStore.Video.Media.DISPLAY_NAME, fileName)
put(MediaStore.Video.Media.DATE_ADDED, dateSeconds)
put(MediaStore.Video.Media.DATE_MODIFIED, dateSeconds)
put(MediaStore.Video.Media.MIME_TYPE, "video/mp4")
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
put(MediaStore.Video.Media.IS_PENDING, 1)
}
}
val itemUri = contentResolver.insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, contentValues)
contentResolver.openOutputStream(itemUri, "w")?.use { os ->
tempFile.inputStream().copyTo(os)
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
contentValues.clear()
contentValues.apply {
put(MediaStore.Video.Media.IS_PENDING, 0)
}
contentResolver.update(itemUri, contentValues, null, null)
}
Related
How do I get original size image after capture in Kotlin so that I can send the original size photo to a server? Here is my code:
DeliveryPresenter:
import com.stevenmorris.delivery.util.ImageStorageUtils
override fun capturePhoto() {
val takePictureIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
activity.startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE)
}
override fun onCapturePhotoResults(requestCode: Int, resultCode: Int, data: Intent?) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
val imageBitmap = data?.extras?.get("data") as Bitmap
view.onPhotoCaptured(imageBitmap);
}
}
DeliveryActivity:
private lateinit var imgPhoto: AppCompatImageView
private var photo: Bitmap? = null;
override fun onPhotoCaptured(photo: Bitmap) {
this.photo = photo
imgPhoto.setImageBitmap(photo)
}
ImageStorageUtils.kt
object ImageStorageUtils {
val TAG = javaClass.simpleName
fun savePhoto(activity: Activity,photo: Bitmap, fileName: String): Boolean {
val root = activity.filesDir.absolutePath;
val myDir = File("$root/photos")
myDir.mkdirs()
val file = File(myDir, fileName)
if (file.exists()) file.delete()
try {
val out = FileOutputStream(file)
photo.compress(Bitmap.CompressFormat.JPEG, 100, out)
out.flush()
out.close()
return true
} catch (e: Exception) {
AppLogger.e(TAG, e.message, e)
return false
}
}
}
Initial thoughts were can I save the photo without compressing it? or is there a way to save the photo in its original size directly?
I have a function that can write a file in Android file system, but I want to append data.
My function create a new file every time I call it.
How can I modify to have the data appended to the file?
Thank you
fun saveDocument(context : Context, fileName: String, text : String): Boolean {
try {
val collection = MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
val dirDest = File(Environment.DIRECTORY_DOCUMENTS, context.getString(R.string.app_name)) // subfolder with name of the App
//val date = System.currentTimeMillis() // current datetime
val contentValues = ContentValues().apply {
put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
//put(MediaStore.MediaColumns.MIME_TYPE, "application/txt")
//put(MediaStore.MediaColumns.DATE_ADDED, date)
//put(MediaStore.MediaColumns.DATE_MODIFIED, date)
put(MediaStore.MediaColumns.RELATIVE_PATH, "$dirDest${File.separator}")
put(MediaStore.Files.FileColumns.IS_PENDING, 1)
}
val imageUri = context.contentResolver.insert(collection, contentValues)
imageUri?.let { uri ->
//context.contentResolver.openOutputStream(uri, "w").use { out -> out?.write(text.toByteArray()) } // write
context.contentResolver.openOutputStream(uri, "wa").use { out -> out?.write(text.toByteArray()) } // append
contentValues.clear()
contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0)
context.contentResolver.update(uri, contentValues, null, null)
}
return(true)
}
catch (e: FileNotFoundException) {
return(false)
}
}
I wrote an App, in Kotlin with Android Studio that write some strings to a file.
All work, I can write and read inside the App, but I can't see the file looking in Documents folder.
How can I use the folder Documents as a storage space?
Thank you
These are the function I use:
fun saveTextFile(view: View, nomeFile: String, testo: String, contesto: Context){
var fileStream: FileOutputStream
try {
fileStream = contesto.openFileOutput(nomeFile, MODE_APPEND) // OK esegue append
fileStream.write(testo.toByteArray())
fileStream.close()
}catch (e: Exception){
e.printStackTrace()
}
}
fun readTextFile(view: View, nomeFile: String, contesto: Context): String{
var fileInputStream: FileInputStream? = null
fileInputStream = contesto.openFileInput(nomeFile)
var inputStreamReader: InputStreamReader = InputStreamReader(fileInputStream)
val bufferedReader: BufferedReader = BufferedReader(inputStreamReader)
val stringBuilder: StringBuilder = StringBuilder()
var text: String? = null
while ({ text = bufferedReader.readLine(); text }() != null) {
stringBuilder.append(text)
}
inputStreamReader.close();
return(stringBuilder.toString())
}
Thank you, Livio
For writing in Documents folder of your device , you just need to make use of MediaStore for the same. You can take input for this function anything that you want like String , bitmap , PdfDocument and other's too .
For Your UseCase you can do the following ,
Global Variable :
private var imageUri: Uri? = null
override suspend fun saveDocument(context : Context, text : String) {
withContext(Dispatchers.IO) {
try {
val collection =
MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
val dirDest = File(
Environment.DIRECTORY_DOCUMENTS,
context.getString(R.string.app_name)
)
val date = System.currentTimeMillis()
val fileName = "$date.txt"
val contentValues = ContentValues().apply {
put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
put(MediaStore.MediaColumns.RELATIVE_PATH,
"$dirDest${File.separator}")
put(MediaStore.Files.FileColumns.IS_PENDING, 1)
}
}
val imageUri = context.contentResolver.insert(collection, contentValues)
withContext(Dispatchers.IO) {
imageUri?.let { uri ->
context.contentResolver.openOutputStream(uri, "w").use { out -> out?.write(text.toByteArray())
}
contentValues.clear()
contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0)
context.contentResolver.update(uri, contentValues, null, null)
}
}
} catch (e: FileNotFoundException) {
null
}
}
}
For Updating the already existing file , do the following . After creating file for the first time I have saved the imageUri in a global variable (If you want to store it permanently / or for a while you can use Jetpack Datastore / Shared Preference to save the same ):
suspend fun updateData(context: Context,text : String){
withContext(Dispatchers.IO) {
try {
val collection =
MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
val dirDest = File(
Environment.DIRECTORY_DOCUMENTS,
context.getString(R.string.app_name)
)
val fileName = "test.txt"
val contentValues = ContentValues().apply {
put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
put(
MediaStore.MediaColumns.RELATIVE_PATH,
"$dirDest${File.separator}"
)
put(MediaStore.Files.FileColumns.IS_PENDING, 1)
}
withContext(Dispatchers.IO) {
imageUri?.let { uri ->
context.contentResolver.openOutputStream(uri, "wa").use { out ->
out?.write(text.toByteArray())
}
contentValues.clear()
contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0)
context.contentResolver.update(uri, contentValues, null, null)
}
}
} catch (e: FileNotFoundException) {
null
}
}
}
For Reading the File , Do the following :
suspend fun read(context: Context, source: Uri): String = withContext(Dispatchers.IO) {
val resolver: ContentResolver = context.contentResolver
resolver.openInputStream(source)?.use { stream -> stream.readText() }
?: throw IllegalStateException("could not open $source")
}
private fun InputStream.readText(charset: Charset = Charsets.UTF_8): String =
readBytes().toString(charset)
This is how the final code looks like :
class MainActivity : AppCompatActivity() {
private lateinit var btn: Button
private var imageUri: Uri? = null
private lateinit var btn2: Button
private lateinit var btn3 : Button
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
btn = findViewById(R.id.btnAdd)
btn2 = findViewById(R.id.getText)
btn3 = findViewById(R.id.updateText)
btn.setOnClickListener {
lifecycleScope.launch {
saveDocument(applicationContext, "Original ")
}
}
btn3.setOnClickListener {
lifecycleScope.launch {
updateData(applicationContext,"Appended")
}
}
btn2.setOnClickListener {
lifecycleScope.launch {
imageUri?.let { it1 ->
val data = read(applicationContext, it1)
Toast.makeText(applicationContext, "The data is $data ", Toast.LENGTH_LONG)
.show()
}
}
}
}
suspend fun saveDocument(context: Context, text: String) {
withContext(Dispatchers.IO) {
try {
val collection =
MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
val dirDest = File(
Environment.DIRECTORY_DOCUMENTS,
context.getString(R.string.app_name)
)
val date = System.currentTimeMillis()
val fileName = "test.txt"
val contentValues = ContentValues().apply {
put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
put(
MediaStore.MediaColumns.RELATIVE_PATH,
"$dirDest${File.separator}"
)
put(MediaStore.Files.FileColumns.IS_PENDING, 1)
}
imageUri = context.contentResolver.insert(collection, contentValues)
withContext(Dispatchers.IO) {
imageUri?.let { uri ->
context.contentResolver.openOutputStream(uri, "w").use { out ->
out?.write(text.toByteArray())
}
contentValues.clear()
contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0)
context.contentResolver.update(uri, contentValues, null, null)
}
}
} catch (e: FileNotFoundException) {
null
}
}
}
suspend fun updateData(context: Context, text: String) {
withContext(Dispatchers.IO) {
try {
val collection =
MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
val dirDest = File(
Environment.DIRECTORY_DOCUMENTS,
context.getString(R.string.app_name)
)
val fileName = "test.txt"
val contentValues = ContentValues().apply {
put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
put(
MediaStore.MediaColumns.RELATIVE_PATH,
"$dirDest${File.separator}"
)
put(MediaStore.Files.FileColumns.IS_PENDING, 1)
}
withContext(Dispatchers.IO) {
imageUri?.let { uri ->
context.contentResolver.openOutputStream(uri, "wa").use { out ->
out?.write(text.toByteArray())
}
contentValues.clear()
contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0)
context.contentResolver.update(uri, contentValues, null, null)
}
}
} catch (e: FileNotFoundException) {
null
}
}
}
suspend fun read(context: Context, source: Uri): String = withContext(Dispatchers.IO) {
val resolver: ContentResolver = context.contentResolver
resolver.openInputStream(source)?.use { stream -> stream.readText() }
?: throw IllegalStateException("could not open $source")
}
private fun InputStream.readText(charset: Charset = Charsets.UTF_8): String =
readBytes().toString(charset)
I have three buttons . With the first I create a file , then the uri gets stored in the global variable . Then onClick of second button I add to the already existing file and then read the file using the third button using the same imageUri stored in the global variable
This is the demo for the same . Check when the buttons are being pressed and the output in the form of Toast at the bottom .
I am a student, new to kotlin, so I am converting java codes to kotlin to learn and see how it works, but I didnt understand what the error says.
private val _songs = ArrayList<SongInfo>()
internal lateinit var recyclerView: RecyclerView
internal lateinit var seekBar: SeekBar
internal lateinit var songAdapter: SongAdapter
internal var mediaPlayer: MediaPlayer? = null
private val myHandler = Handler()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
recyclerView = findViewById(R.id.recyclerView) as RecyclerView
seekBar = findViewById(R.id.seekBar) as SeekBar
songAdapter = SongAdapter(this, _songs)
recyclerView.adapter = songAdapter
val linearLayoutManager = LinearLayoutManager(this)
val dividerItemDecoration = DividerItemDecoration(recyclerView.context,
linearLayoutManager.orientation)
recyclerView.layoutManager = linearLayoutManager
recyclerView.addItemDecoration(dividerItemDecoration)
songAdapter.setOnItemClickListener { b, view, obj, position ->
if (b.text == "Stop") {
mediaPlayer!!.stop()
mediaPlayer!!.reset()
mediaPlayer!!.release()
mediaPlayer = null
b.text = "Play"
} else {
val runnable = Runnable {
try {
mediaPlayer = MediaPlayer()
mediaPlayer!!.setDataSource(obj.songUrl)
mediaPlayer!!.prepareAsync()
mediaPlayer!!.setOnPreparedListener { mp ->
mp.start()
seekBar.progress = 0
seekBar.max = mediaPlayer!!.duration
Log.d("Prog", "run: " + mediaPlayer!!.duration)
}
b.text = "Stop"
} catch (e: Exception) {
}
}
myHandler.postDelayed(runnable, 100)
}
}
checkUserPermission()
val t = runThread()
t.start()
}
inner class runThread : Thread() {
override fun run() {
while (true) {
try {
Thread.sleep(1000)
} catch (e: InterruptedException) {
e.printStackTrace()
}
Log.d("Runwa", "run: " + 1)
if (mediaPlayer != null) {
seekBar.post { seekBar.progress = mediaPlayer!!.currentPosition }
Log.d("Runwa", "run: " + mediaPlayer!!.currentPosition)
}
}
}
}
private fun checkUserPermission() {
if (Build.VERSION.SDK_INT >= 23) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), 123)
return
}
}
loadSongs()
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
when (requestCode) {
123 -> if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
loadSongs()
} else {
Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show()
checkUserPermission()
}
else -> super.onRequestPermissionsResult(requestCode, permissions, grantResults)
}
}
private fun loadSongs() {
val uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
val selection = MediaStore.Audio.Media.IS_MUSIC + "!=0"
val cursor = contentResolver.query(uri, null, selection, null, null)
if (cursor != null) {
if (cursor.moveToFirst()) {
do {
val name = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME))
val artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST))
val url = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA))
val s = SongInfo(name, artist, url)
_songs.add(s)
} while (cursor.moveToNext())
}
cursor.close()
songAdapter = SongAdapter(this#MainActivity, _songs)
}
}
}
This is the error:
"Error:(46, 44) Type mismatch: inferred type is (???, ???, ???, ???)
-> Any but SongAdapter.OnItemClickListener was expected Error:(46, 46) Cannot infer a type for this parameter. Please specify it explicitly."
Batch conversion to Kotlin is not the best way to learn the language. I suggest you to re-implement your Android component in Kotlin manually, to get the feeling of language.
The error you see says: "I can not understand how this lambda with 4 parameters can be an instance of SongAdapter.OnItemClickListener, please help". You can try anonymous class in this place.
The following code is working with API 21 and above. However, when I run it on below 21, no data shows up on TextureView.
My configuration for MediaCodec:
MediaFormat format = MediaFormat.createVideoFormat(MediaFormat.MIMETYPE_VIDEO_AVC, 1920, 1080);
format.setByteBuffer("csd-0", ByteBuffer.allocate(100));
format.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 100000);
try {
m_codec = MediaCodec.createDecoderByType(MediaFormat.MIMETYPE_VIDEO_AVC);
m_codec.configure(format, new Surface(m_surface.getSurfaceTexture()), null, 0);
m_codec.start();
} catch (Exception e) {
e.printStackTrace();
}
The decoding part:
int inputIndex = m_codec.dequeueInputBuffer(-1);
if (inputIndex >= 0) {
ByteBuffer buffer;
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
buffer = m_codec.getInputBuffer(inputIndex);
buffer.clear();
}
else {
buffer=m_codec.getInputBuffers()[inputIndex];
buffer.put(videoBuffer,0,info.size);
}
if (buffer != null) {
buffer.put(videoBuffer, info.offset,videoBuffer.length);
m_codec.queueInputBuffer(inputIndex, 0, videoBuffer.length, 0, 0);
}
}
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int outputIndex = m_codec.dequeueOutputBuffer(info, 0);
if (outputIndex >= 0) {
m_codec.releaseOutputBuffer(outputIndex, true);
}
EDIT:
I got the solution,when i removed below line, now it's working
format.setByteBuffer("csd-0", ByteBuffer.allocate(100));