I want to import csv from external storage and then update my database but when i am selecting that csv from downloaded folder FileNotFoundExpception comes. Here is the exception System.err: java.io.FileNotFoundException: /document/primary:Download/GuestCSV.csv: open failed: ENOENT (No such file or directory)
Here is my code. Kindly review my code and help me to find a solution.
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/*");
startActivityForResult(Intent.createChooser(intent, "Open CSV"), ACTIVITY_CHOOSE_FILE);
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case ACTIVITY_CHOOSE_FILE: {
if (resultCode == RESULT_OK) {
onImport(new File(data.getData().getPath()));
}
}
}
}
public void onImport(File files) {
try {
CSVReader reader = new CSVReader(new FileReader(files));
String[] nextLine;
try {
while ((nextLine = reader.readNext()) != null) {
// nextLine[] is an array of values from the line
String emailID = nextLine[0];
String guestName = nextLine[1];
String guestSource = nextLine[2];
String guestPhone = nextLine[3];
String guestCount = nextLine[4];
String guestCreatedDate = nextLine[5];
String guestModifiedDate = nextLine[6];
GuestDetails guestDetails = new GuestDetails();
guestDetails.setEmail(emailID);
guestDetails.setUsername(guestName);
guestDetails.setPhone(guestPhone);
guestDetails.setSource(guestSource);
guestDetails.setCount(Integer.valueOf(guestCount));
guestDetails.setCreatedDate(guestCreatedDate);
guestDetails.setModifiedDate(guestModifiedDate);
try {
helper.insertGuest(guestDetails);
} catch (SQLiteConstraintException e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), "Data inserted into table...", Toast.LENGTH_SHORT).show();
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
i hope this code help you!!
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+ "/YourFolder/");
intent.setDataAndType(uri, "text/csv");
startActivity(Intent.createChooser(i, "Open folder"));
Related
I'm trying to copy a file from download folder to another directory.
i used this code to get the file path
int PICKFILE_RESULT_CODE=1;
Intent chooseFile = new Intent(Intent.ACTION_GET_CONTENT);
chooseFile.setType("*/*");
chooseFile = Intent.createChooser(chooseFile, "Choose a file");
startActivityForResult( chooseFile,PICKFILE_RESULT_CODE);
I also used
#Override
public void onActivityResult(int requestCode, int resultCode,
Intent returnIntent) {
// If the selection didn't work
if (resultCode != RESULT_OK) {
// Exit without doing anything else
return;
} else {
returnUri = returnIntent.getData();
String src = returnUri.getPath();
Toast.makeText(this, src, Toast.LENGTH_SHORT).show();
}
}
The code works fine if the file is outside the download directory, when in it the path which i get is in the form of number not the actual name of the file like:
/document/2399
this gives an error of file not found
while the path from the root is:
/storage/emulated/0/myDB.db3
this works fine
pls help me to fix this
The code works fine if the file is outside the download directory
No, it does not. It works fine if the scheme of the Uri happens to be file. Most of the time, it will be content.
I'm trying to copy a file from download folder to another directory.
Use openInputStream() on a ContentResolver to get an InputStream on the content identified by the Uri. This works for both file and content schemes. Then, use standard Java I/O to copy the content from the InputStream to your desired location.
Here is the new code:
int PICKFILE_RESULT_CODE=1;
Intent chooseFile = new Intent(Intent.ACTION_GET_CONTENT);
chooseFile.setType("*/*");
chooseFile = Intent.createChooser(chooseFile, "Choose a file");
startActivityForResult( chooseFile,PICKFILE_RESULT_CODE);
And used:
#Override
public void onActivityResult(int requestCode, int resultCode,
Intent returnIntent) {
InputStream is = null;
// If the selection didn't work
if (resultCode != RESULT_OK) {
// Exit without doing anything else
return;
} else {
// Get the file's content URI from the incoming Intent
Uri returnUri = returnIntent.getData();
try {
is = getContentResolver().openInputStream(returnUri);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
BackUpHelper.importDB(is);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void importDB(InputStream is) throws IOException {
OutputStream os = null;
try {
String currentDBPath = DataBaseHelper2.DB_PATH+DataBaseHelper2.DB_NAME;
File outPut = new File(currentDBPath);
os = new FileOutputStream(outPut);
byte[] buffer = new byte[1024];
while (is.read(buffer) > 0) {
os.write(buffer);
}
Toast.makeText(context, R.string.export_successful,
Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(context, R.string.export_failed, Toast.LENGTH_SHORT)
.show();
}finally {
os.flush();
os.close();
is.close();
}
}
In my application user is able to select the downloads directory. If he selects external removable SD card (not an emulated sd card!, but a memory, which is a real physicel microSD card for example), starting from Android 4.4 I am only able to write to it using SAF (Storage Access Framework).
I've figured out how to create and write a single file using SAF:
public void newFile() {
Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TITLE, "newfile.txt");
startActivityForResult(intent, CREATE_REQUEST_CODE);
}
public void saveFile() {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/plain");
startActivityForResult(intent, SAVE_REQUEST_CODE);
}
And here is my onActivityResult, where I actually write to file:
public void onActivityResult(int requestCode, int resultCode,
Intent resultData) {
Uri currentUri = null;
if (resultCode == Activity.RESULT_OK) {
if (requestCode == CREATE_REQUEST_CODE) {
if (resultData != null) {
Log.d(TAG, "CREATE_REQUEST_CODE resultData = " + resultData);
}
} else if (requestCode == SAVE_REQUEST_CODE) {
if (resultData != null) {
currentUri = resultData.getData();
getContentResolver().takePersistableUriPermission(currentUri, Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
writeFileContent(currentUri);
Log.d(TAG, "SAVE_REQUEST_CODE currentUri = " + currentUri);
}
}
}
}
And also writeFileContent:
private void writeFileContent(Uri uri) {
try {
ParcelFileDescriptor pfd =
this.getContentResolver().
openFileDescriptor(uri, "w");
FileOutputStream fileOutputStream =
new FileOutputStream(pfd.getFileDescriptor());
String textContent = "some text";
fileOutputStream.write(textContent.getBytes());
fileOutputStream.close();
pfd.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
And finally my question:
How do I create other files, and write them after I called getContentResolver().takePersistableUriPermission without a prompt to select a directory in future?
If I'm right, then getContentResolver().takePersistableUriPermission shoudl allow me to do tha
Thanks to #earthw0rmjim answer, and googling, I figgured out a complete solution:
public void saveFile() {
List<UriPermission> permissions = getContentResolver().getPersistedUriPermissions();
if (permissions != null && permissions.size() > 0) {
DocumentFile pickedDir = DocumentFile.fromTreeUri(this, permissions.get(0).getUri());
DocumentFile file = pickedDir.createFile("text/plain", "try2.txt");
writeFileContent(file.getUri());
} else {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/plain");
startActivityForResult(intent, SAVE_REQUEST_CODE);
}
}
So firstly, if we don't have PersistedUriPermissions, it will request such permissions. This way here is how onActivityResult looks like
public void onActivityResult(int requestCode, int resultCode,
Intent resultData) {
Uri currentUri = null;
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_DIR_REQUEST_CODE) {
if (resultData != null) {
Uri treeUri=resultData.getData();
Log.d(TAG, "SELECT_DIR_REQUEST_CODE resultData = " + resultData);
getContentResolver().takePersistableUriPermission(treeUri, Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
DocumentFile pickedDir = DocumentFile.fromTreeUri(this, treeUri);
DocumentFile file = pickedDir.createFile("text/plain", "try2.txt");
writeFileContent(file.getUri());
}
}
}
}
And the writeFileContent looks same as in the question
private void writeFileContent(Uri uri) {
try {
ParcelFileDescriptor pfd =
this.getContentResolver().
openFileDescriptor(uri, "w");
FileOutputStream fileOutputStream =
new FileOutputStream(pfd.getFileDescriptor());
String textContent = "some text";
fileOutputStream.write(textContent.getBytes());
fileOutputStream.close();
pfd.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
I am using this code to share an image:
File file = ImageLoader.getInstance().getDiskCache().get(imageUrl);
if (file != null && file.exists()) {
Uri uri = Uri.fromFile(file);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_TEXT, "Hello");
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.setType("image/*");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
context.startActivity(Intent.createChooser(intent, "Send"));
} else {
Toast.makeText(context, "Image cannot be shared", Toast.LENGTH_SHORT).show();
}
I used UIL to load the image previously, so mageLoader.getInstance().getDiskCache().get(imageUrl); returns the image file from disk cache.
Gmail, Hangouts, Messages, Drive etc can grab the file but on Google+, the grabbed is not gotten while Whatsapp says "This format is not supported". However if I save the file to Downloads folder and share via Gallery app, the same image is picked by both Google+ and Whatsapp.
You can try to save the file to the external cache, it's working for me. Example with Glide:
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.setType("image/*");
Glide.with(getContext())
.load("http://...url.here...")
.asBitmap()
.into(new SimpleTarget<Bitmap>(500, 500) {
#Override
public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {
try {
File file = new File(getContext().getExternalCacheDir(), "file_to_share.png");
file.getParentFile().mkdirs();
FileOutputStream out = new FileOutputStream(file);
resource.compress(Bitmap.CompressFormat.PNG, 90, out);
out.close();
sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
sendIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
getContext().startActivity(Intent.createChooser(sendIntent, ""));
} catch (IOException e) {
Log.e("Share", e.getMessage(), e);
} finally {
}
}
});
In case you're using Universal Image Loader, I applied the accepted answer to save the image and delete it as soon as the user returns from sharing:
private File saveImage(String imageUri, String fileName) {
File file = new File(this.getExternalCacheDir(), fileName);
InputStream sourceStream = null;
File cachedImage = ImageLoader.getInstance().getDiskCache().get(imageUri);
if (cachedImage != null && cachedImage.exists()) {
Log.d(TAG, "Cache exists");
try {
sourceStream = new FileInputStream(cachedImage);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
} else {
Log.d(TAG, "Cache doesn't exist");
}
if (sourceStream != null) {
Log.d(TAG, "SourceStream is not null");
try {
OutputStream targetStram = new FileOutputStream(file);
try {
try {
IoUtils.copyStream(sourceStream, targetStram, null);
} catch (IOException e) {
e.printStackTrace();
}
} finally {
try {
targetStram.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
try {
sourceStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} else {
Log.d(TAG, "SourceStream is null");
Toast.makeText(this, "Image cannot be shared", Toast.LENGTH_SHORT).show();
}
return file;
}
private void shareImage(String imageUrl, String fileName) {
if (isSDReadableWritable()) {
file = saveImage(imageUrl, fileName);
Uri uri = Uri.fromFile(file);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_TEXT, "Hello");
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.setType("image/*");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivityForResult(Intent.createChooser(intent, "Send"), 20);
} else {
Toast.makeText(this, "Storage cannot be accessed", Toast.LENGTH_SHORT).show();
}
}
To delete the file just override onActivityResult and it'll be deleted immediately after sharing
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 20 && file != null) {
boolean isDelete = file.delete();
Log.d(TAG, "isDelete is " + isDelete);
}
}
I want to import csv from external storage and then update my database but when I am selecting that csv from downloaded folder FileNotFoundExpception comes. Here is the exception System.err:
java.io.FileNotFoundException: /document/primary:Download/GuestCSV.csv: open failed: ENOENT (No such file or directory)
Here is my code. Kindly review my code and help me to find a solution.
importDatabase.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/*");
startActivityForResult(Intent.createChooser(intent, "Open CSV"), ACTIVITY_CHOOSE_FILE);
}
});
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case ACTIVITY_CHOOSE_FILE: {
if (resultCode == RESULT_OK) {
onImport(new File(data.getData().getPath()));
Log.d(TAG, data.getData().getPath());
}
}
}
}
public void onImport(File files) {
try {
String[] nextLine;
try {
CSVReader reader = new CSVReader(new FileReader(files.getAbsolutePath()));
while ((nextLine = reader.readNext()) != null) {
// nextLine[] is an array of values from the line
String emailID = nextLine[0];
String guestName = nextLine[1];
String guestSource = nextLine[2];
String guestPhone = nextLine[3];
String guestCount = nextLine[4];
String guestCreatedDate = nextLine[5];
String guestModifiedDate = nextLine[6];
GuestDetails guestDetails = new GuestDetails();
guestDetails.setEmail(emailID);
guestDetails.setUsername(guestName);
guestDetails.setPhone(guestPhone);
guestDetails.setSource(guestSource);
guestDetails.setCount(Integer.valueOf(guestCount));
guestDetails.setCreatedDate(guestCreatedDate);
guestDetails.setModifiedDate(guestModifiedDate);
try {
helper.insertGuest(guestDetails);
} catch (SQLiteConstraintException e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), "Data inserted into table...", Toast.LENGTH_SHORT).show();
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
There is no guaranty that the URI you are receiving as result is a file (and thus that the path part is an actual filesystem path).
It may be a content: URI, in with case the path only makes sense for the corresponding ContentProvider.
This kind of URI should be read using ContentResolver.openInputStream() or queried via ContentResolver.query().
See A Uri Is Not (Necessarily) a File for more details.
How do i pass an uri from the onActivity result to another method in the same jave file.
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) return;
if (requestCode == PICK_FROM_GALLERY) {
Uri mVideoURI = data.getData();
videoView.setVideoURI(mVideoURI);
videoView.start();
}
}
method savevideo:
public void savevideo() {
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/SavedVideo/";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();;
// create unique identifier
Random generator = new Random();
int n = 100;
n = generator.nextInt(n);
// create file name
String videoName = "Video_" + n + ".mp4";
File fileVideo = new File(dir.getAbsolutePath(), videoName);
try {
fileVideo.createNewFile();
success = true;
} catch (IOException e) {
e.printStackTrace();
}
if (success) {
Toast.makeText(getApplicationContext(), "Video saved!",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Error during video saving", Toast.LENGTH_LONG).show();
}
return true;
}
}
I would like like pass the mVideoURI to savevideo method and then save the video uri into gallery. Can someone help me with this. Any guidance/suggestion would be really helpful. Thank you.
EDITED: FULL CODING:
public class AndroidVideoPlayer extends Activity {
Button button;
VideoView videoView;
private static final int PICK_FROM_GALLERY = 1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_android_video_player);
button = (Button) findViewById(R.id.button);
videoView = (VideoView) findViewById(R.id.videoview);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_GALLERY);
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) return;
if (requestCode == PICK_FROM_GALLERY) {
Uri mVideoURI = data.getData();
savevideo(mVideoURI);
videoView.setVideoURI(mVideoURI);
videoView.start();
}
}
public void savevideo(Uri mVideoURI) {
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/SavedVideo/";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();;
// create unique identifier
Random generator = new Random();
int n = 100;
n = generator.nextInt(n);
// create file name
String videoName = "Video_" + n + ".mp4";
File fileVideo = new File(dir.getAbsolutePath(), videoName);
boolean success=false;
try {
fileVideo.createNewFile();
success = true;
} catch (IOException e) {
e.printStackTrace();
}
if (success) {
Toast.makeText(getApplicationContext(), "Video saved!",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Error during video saving", Toast.LENGTH_LONG).show();
}
}
}
As per my understanding from your question, you have to call a method after getting a result from another activity. so you might be called startActivitForResult(activityB) for getting the video Uri. so you will get a callback from the activityB, thus you can directly pass the video to the method saveVideo() since it is in the same Activity.
Example
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK)
return;
if (requestCode == PICK_FROM_GALLERY) {
Uri mVideoURI = data.getData();
saveVideo(videoUri);
}
}
public void saveVideo(Uri videoUri){
// do operations with uri
}
or if you can't accept any arguments in saveVideo() method you can make uri as a member variable and use inside() method
use this code-
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) return;
if (requestCode == PICK_FROM_GALLERY) {
Uri mVideoURI = data.getData();
saveVideo(mVideoURI); // methode to save uri gets called here
videoView.setVideoURI(mVideoURI);
videoView.start();
}
}
method savevideo:
public void savevideo(Uri mVideoURI) {
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/SavedVideo/";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();;
// create unique identifier
Random generator = new Random();
int n = 100;
n = generator.nextInt(n);
// create file name
String videoName = "Video_" + n + ".mp4";
File fileVideo = new File(dir.getAbsolutePath(), videoName);
try {
fileVideo.createNewFile();
success = true;
} catch (IOException e) {
e.printStackTrace();
}
if (success) {
Toast.makeText(getApplicationContext(), "Video saved!",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Error during video saving", Toast.LENGTH_LONG).show();
}
return true;
}
}
In your code, you are only creating new file on your destination path but not write the data of source file to destination file.
So you are getting 0KB file. Use the below code code for writing a file.
void savefile(URI sourceuri)
{
String sourceFilename= sourceuri.getPath();
String destinationFilename = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"abc.mp3";
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(new FileInputStream(sourceFilename));
bos = new BufferedOutputStream(new FileOutputStream(destinationFilename, false));
byte[] buf = new byte[1024];
bis.read(buf);
do {
bos.write(buf);
} while(bis.read(buf) != -1);
} catch (IOException e) {
} finally {
try {
if (bis != null) bis.close();
if (bos != null) bos.close();
} catch (IOException e) {
}
}
}