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A simple way to retrieve CSV and read its contents on Flutter Web
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| // Note: This is a simple way to read CSV file with Flutter Web | |
| // You must add those packages to make the code work: | |
| // - csv | |
| // - file_picker_web | |
| Future<void> importCSV() async { | |
| // Using the file_picker_package to get the file | |
| final csvFile = await FilePicker.platform.pickFiles( | |
| allowMultiple: false, | |
| withData: true, | |
| type: FileType.custom, | |
| allowedExtensions: ['csv'], | |
| ); | |
| if (csvFile != null) { | |
| //decode bytes back to utf8 | |
| final bytes = utf8.decode(csvFile.files.first.bytes!); | |
| //from the csv plugin | |
| List<List<dynamic>> rowsAsListOfValues = | |
| const CsvToListConverter().convert(bytes); | |
| // Let us display the CSV file content | |
| for (int i = 0; i < rowsAsListOfValues.length; i++) { | |
| for (int j = 0; j < rowsAsListOfValues.elementAt(i).length; j++) { | |
| log("${rowsAsListOfValues.elementAt(i).elementAt(0)}"); | |
| log(rowsAsListOfValues.elementAt(i).elementAt(1).toString()); | |
| log(rowsAsListOfValues.elementAt(i).elementAt(2).toString()); | |
| } | |
| } | |
| } | |
| } |
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