import 'package:block_input/block_input.dart';

BlockInput(
  controller: blockInputController,
  keyboardType: BlockInputKeyboardType.number, // Number or Text
  axisAlignment: MainAxisAlignment.spaceBetween, // Same as Row/Column MainAxisAlignment
  blockInputStyle: BlockInputStyle(
    backgroundColor: Colors.black12, // Color
    border: OutlineInputBorder( // Same as InputDecoration border
         borderRadius: BorderRadius.all(Radius.circular(10)),
         borderSide: BorderSide(color: Colors.deepOrange, width: 1)
    ),
    focusedBorder: OutlineInputBorder( // Same as InputDecoration border
         borderRadius: BorderRadius.all(Radius.circular(10)),
         borderSide: BorderSide(color: Colors.blueAccent, width: 2)
    )
  )
)

BlockInput(
  keyboardType: BlockInputKeyboardType.mnCyrillic
  ...
)

BlockInputStyle(
    keyboardStyle: BlockKeyboardStyle(
      keyColor: Colors.blueAccent,
      backgroundColor: Colors.white,
      width: 40,
      height: 40,
      textStyle: TextStyle(),
      keyShape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(18.0),
          side: BorderSide(color: Colors.red)
      ),
    ),
    ...
),

// Initializing controller
int inputSize = 6; // input size is required for controller
BlockInputController blockInputController = BlockInputController(inputSize);

// Attaching listener
blockInputController.addListener(() {
  print(blockInputController.text);
});

// Getting and Setting value
String getValue = blockInputController.text; // get
blockInputController.text = 'maaraa'; // set + 
// + throws exception when text length was exceeded from input size

blockInputController.clear(); // clear

// Disposing
blockInputController.dispose();