Google Sheets API: How to find a row by value and update it's content

Question

I am working on an Android application that uses a Google Spreadsheet as a database. The application should GET, APPEND and UPDATE values in a spreadsheet, using the Sheets

Answer 1

I had the same requirement.

First: Create a function that gets the index of targeted object from the sheet, like:

private int getRowIndex(TheObject obj, ValueRange response) {
    List> values = response.getValues();
    int rowIndex = -1;

    int i = 0;
    if (values != null) {
        for (List row : values) {
            i += 1;
            if (row.get(1).equals(obj.getBatchId())) {
                System.out.println("There is a match! i= " + i);
                rowIndex = i;
            }
        }
    }

    return rowIndex;
}

Second: Create the update method by passing the targeted object having your desired value "batch id" and others new values for the rest of fields.

public void updateObject(Object obj) throws IOException, GeneralSecurityException {    
    sheetsService = getSheetsService();
    ValueRange response = sheetsService.spreadsheets().
            values().get(SPREADSHEET_ID, "Sheet1").execute();
    
    int rowIndex = this.getRowIndex(obj, response);
    
    if (rowIndex != -1) {
        List oList = new ArrayList<>();
        oList.add(new ValueRange().setRange("B" + rowIndex).setValues(Arrays.asList(
                Arrays.