How to show size of file from file path in flutter-CodePudding

I was trying to get all pdf files from device storage and it's done now I want to show the size of that file in listview. builder trailing.

path of my file

files[index].path

print of files[index].path is /storage/emulated/0/android/data/......../name.pdf

this is what im trying

            title:  Text(files[index].path.split('/').last),
                  trailing: Text(files[index].path.length()),

CodePudding user response：

If your list type is File you can get that with length():

var size = await files[index].length();
print(size);

If not try this:

var size = await File(files[index].path).length();
print(size);

also you can't call it direct in Text widget, first you need call it in FutureBuilder , second you need to parse its value to string like this:

trailing: FutureBuilder<int>(
  builder: (context, snapshot) {
    return Text(snapshot.data.toString());
  },
  future: files[index].length(),
),

CodePudding user response：

Try this

int sizeInBytes = File(files[index].path).lengthSync();