Rename image that has been picked by imagepicker for flutter

Question

I would like to rename the file that i already pick from my gallery by image picker, i already try the below method using renameAsync

String dir = path.dirname(pickedFile.path);
String newName = path.join(dir, 'customname.jpg');
File(pickedFile.path).renameSync(newName);

however it return error [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: FileSystemException: Cannot rename file to ....

Answer 1

You have to do these steps:

1. Convert XFile you get from ImagePicker to File
2. Rename the File to what you want.

Here's the sample code:

result = await ImagePicker().pickImage(source: ImageSource.gallery, imageQuality: 50);

String newFileName = "mynewfilename.jpg"

# Convert Xfile to File
File resultFile = File(result!.path)
print(resultFile);  // Old FileName with path

# Function to rename your File
File changeFileNameOnlySync(File file, String newFileName) {
  var path = file.path;
  var lastSeperator = path.lastIndexOf(Platform.pathSeparator);
  var newPath = path.substring(0, lastSeperator + 1) + newFileName;
  return file.renameSync(newPath);
}

File newFileResult = changeFileNameOnlySync(resultFile, newFileName);

print(newFileResult); // New FileName with path

You can convert it again to XFile to get an original file like the one you get from ImagePicker.

XFile newXFileResult = XFile(newFileResult.path);
print(newXFileResult);
print(newXFileResult.name);