Convert File: Uri to File in Android

Convert file: Uri to File in Android

What you want is...

new File(uri.getPath());

... and not...

new File(uri.toString());

Notes

1. For an android.net.Uri object which is named uri and created exactly as in the question, uri.toString() returns a String in the format "file:///mnt/sdcard/myPicture.jpg", whereas uri.getPath() returns a String in the format "/mnt/sdcard/myPicture.jpg".
2. I understand that there are nuances to file storage in Android. My intention in this answer is to answer exactly what the questioner asked and not to get into the nuances.

how to convert URI to File Android 10

You cannot convert the direct file to URI in android 10 instead of this you can make a copy of the file into your file directory which will help you to get a file object.

File f = getFile(getApplicationContext(), uri);

The below method provide you file object of URI and also you have a copy of the file in your file directory.

    public static File getFile(Context context, Uri uri) throws IOException {
    File destinationFilename = new File(context.getFilesDir().getPath() + File.separatorChar + queryName(context, uri));
    try (InputStream ins = context.getContentResolver().openInputStream(uri)) {
        createFileFromStream(ins, destinationFilename);
    } catch (Exception ex) {
        Log.e("Save File", ex.getMessage());
        ex.printStackTrace();
    }
    return destinationFilename;
}

public static void createFileFromStream(InputStream ins, File destination) {
    try (OutputStream os = new FileOutputStream(destination)) {
        byte[] buffer = new byte[4096];
        int length;
        while ((length = ins.read(buffer)) > 0) {
            os.write(buffer, 0, length);
        }
        os.flush();
    } catch (Exception ex) {
        Log.e("Save File", ex.getMessage());
        ex.printStackTrace();
    }
}

private static String queryName(Context context, Uri uri) {
    Cursor returnCursor =
            context.getContentResolver().query(uri, null, null, null, null);
    assert returnCursor != null;
    int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
    returnCursor.moveToFirst();
    String name = returnCursor.getString(nameIndex);
    returnCursor.close();
    return name;
}

for more detail refer here

Creating file from Uri

You can try this;

try {
                Uri uri = data.getData();
                String selectedFilePath = FilePath.getPath(getActivity(), uri);
                final File file = new File(selectedFilePath);

                new UploadFileToServer().execute(file);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

and define FilePath class like this;

import android.content.ContentUris;
import android.content.Context;
 import android.database.Cursor;
  import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
 import android.provider.MediaStore;

 public class FilePath {

/**
 * Method for return file path of Gallery image/ Document / Video / Audio
 *
 * @param context
 * @param uri
 * @return path of the selected image file from gallery
 */
public static String getPath(final Context context, final Uri uri) {

    // check here to KITKAT or new version
    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

    // DocumentProvider
    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {

        // ExternalStorageProvider
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            if ("primary".equalsIgnoreCase(type)) {
                return Environment.getExternalStorageDirectory() + "/"
                        + split[1];
            }
        }
        // DownloadsProvider
        else if (isDownloadsDocument(uri)) {

            final String id = DocumentsContract.getDocumentId(uri);
            final Uri contentUri = ContentUris.withAppendedId(
                    Uri.parse("content://downloads/public_downloads"),
                    Long.valueOf(id));

            return getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            Uri contentUri = null;
            if ("image".equals(type)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }

            final String selection = "_id=?";
            final String[] selectionArgs = new String[] { split[1] };

            return getDataColumn(context, contentUri, selection,
                    selectionArgs);
        }
    }
    // MediaStore (and general)
    else if ("content".equalsIgnoreCase(uri.getScheme())) {

        // Return the remote address
        if (isGooglePhotosUri(uri))
            return uri.getLastPathSegment();

        return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}

/**
 * Get the value of the data column for this Uri. This is useful for
 * MediaStore Uris, and other file-based ContentProviders.
 *
 * @param context
 *            The context.
 * @param uri
 *            The Uri to query.
 * @param selection
 *            (Optional) Filter used in the query.
 * @param selectionArgs
 *            (Optional) Selection arguments used in the query.
 * @return The value of the _data column, which is typically a file path.
 */
public static String getDataColumn(Context context, Uri uri,
                                   String selection, String[] selectionArgs) {

    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = { column };

    try {
        cursor = context.getContentResolver().query(uri, projection,
                selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

/**
 * @param uri
 *            The Uri to check.
 * @return Whether the Uri authority is ExternalStorageProvider.
 */
public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri
            .getAuthority());
}

/**
 * @param uri
 *            The Uri to check.
 * @return Whether the Uri authority is DownloadsProvider.
 */
public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri
            .getAuthority());
}

/**
 * @param uri
 *            The Uri to check.
 * @return Whether the Uri authority is MediaProvider.
 */
public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri
            .getAuthority());
}

/**
 * @param uri
 *            The Uri to check.
 * @return Whether the Uri authority is Google Photos.
 */
public static boolean isGooglePhotosUri(Uri uri) {
    return "com.google.android.apps.photos.content".equals(uri
            .getAuthority());
}
}

Android: How to convert File Uri to Content Uri

Use FileProvider to serve your file.

It gives nice uries.

FileProvider.getUriForFile().

You can serve all files except those from removable micro sd card.

How to convert content uri to file?

I used this dependency

 implementation "commons-io:commons-io:2.7"

And this method

private fun createFileFromUri(name: String, uri: Uri): File? {
        return try {
            val stream = context.contentResolver.openInputStream(uri)
            val file =
                File.createTempFile(
                    "${name}_${System.currentTimeMillis()}",
                    ".png",
                    context.cacheDir
                )
            FileUtils.copyInputStreamToFile(stream, file)  // Use this one import org.apache.commons.io.FileUtils
            file
        } catch (e: Exception) {
            e.printStackTrace()
            null
        }
    }

How to get the Full file path from URI

Use:

String path = yourAndroidURI.uri.getPath() // "/mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));

or

String path = yourAndroidURI.uri.toString() // "file:///mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));

Convert a file path to Uri in Android

Please try the following code

Uri.fromFile(new File("/sdcard/sample.jpg"))

Convert android Uri to java File Android Studio

Solved it!

Here's how I did it:

        // my uri
        Uri fileUri = Uri.parse(postFileHolder.getFileUri());
        
        // create a null InputSream
        InputStream iStream = null;
        try {
            // create a temporary file
            File fileToUpload = File.createTempFile("fileToUpload", null, this.getCacheDir());
          
            iStream = getContentResolver().openInputStream(fileUri);
            
           // use function to get the bytes from the created InputStream
            byte[] byteData = getBytes(iStream);

            convert byteArray to File
            FileOutputStream fos = new FileOutputStream(fileToUpload);
            fos.write(byteData);
            fos.flush();
            fos.close();

            if(fileToUpload == null){
                Log.i("create file", "null");
            }
            else{
                Log.i("create file", "not null:  "+ fileToUpload.getTotalSpace());
                getEGDrive(fileToUpload);
            }
}
 catch (FileNotFoundException e) {
                Log.i("error create file uri", e.getLocalizedMessage());

                e.printStackTrace();
            } catch (IOException e) {
                Log.i("error create file uri", e.getLocalizedMessage());

                e.printStackTrace();
            }

And here's the function to transform the InputStream into byteArray:

 public byte[] getBytes(InputStream inputStream) throws IOException {
        ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
        int bufferSize = 1024;
        byte[] buffer = new byte[bufferSize];

        int len = 0;
        while ((len = inputStream.read(buffer)) != -1) {
            byteBuffer.write(buffer, 0, len);
        }
        return byteBuffer.toByteArray();
    }

Got big part of the answer from: https://stackoverflow.com/a/10297073/14990708

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