README-CN.md

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notepad_core

连接并操作智能手写本的Flutter插件

• 36记智能手写本
• 磐度智能书写本 TODO
• 和冠智能笔记本 TODO

功能

• 扫描设备
• 连接设备
• 接收实时笔迹

扫描设备

Web

let device = notepadConnector.requestDevice();
console.log(`requestDevice ${device}`);

Mini-program on Wechat

let scanResultReceiver = function (scanResult) {
  console.log(`onScanResult ${scanResult}`);
};
notepadConnector.onScanResult(scanResultReceiver);

notepadConnector.startScan();
// ...
notepadConnector.stopScan();

notepadConnector.offScanResult(scanResultReceiver);

连接设备

连接从notepadConnector.requestDevice()中获取的device

或从notepadConnector.scanResultStream中扫描到的result

let connectionChangeHandler = function (notepadClient, connectionState) {
  console.log(`onConnectionChange ${notepadClient}, ${connectionState}`);
};
notepadConnector.onConnectionChange(connectionChangeHandler);

notepadConnector.connect(obj); // obj = device/scanResult
// ...
notepadConnector.disconnect();

notepadConnector.offConnectionChange(connectionChangeHandler);

接收实时笔迹

NotepadClient#setMode

• NotepadMode.Common

  设备仅保存压力>0的NotePenPointer（含时间戳）到离线字迹中

• NotepadMode.Sync

  设备发送所有NotePenPointer（无时间戳）到连接的手机/Pad上

设备默认为NotepadMode.Common（连接/未连接），只有连接后setMode才会更改

await _notepadClient.setMode(NotepadMode.Sync);
console.log("setMode complete");

NotepadClient#onSyncPointerReceive

当NotepadMode.Sync时，接收NotePenPointer

let syncPointerReceiver = function (pointers) {
  console.log(`onSyncPointerReceive ${pointers.length}`);
};

_notepadClient.onSyncPointerReceive(syncPointerReceiver);
// ...
_notepadClient.offSyncPointerReceive(syncPointerReceiver);