小程序代码: “ openAndListenBluetoothAdapter() { // 未初始化蓝牙适配器，打开蓝牙适配器 if (!this.isInitializedAdapter) { // // 监听蓝牙适配器状态 _.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange') .then(__ => __) .catch(__ => __); _.on('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange', res => { this.bm.log('onBluetoothAdapterStateChange', res); if (res.available && !this.isAvailableAdapter) { this.isAvailableAdapter = true; this.callBackConnectStatus(SuccessCallbackEvent.Success_ConnectStatus_CB_PowerOn); } else if (!res.available) { this.isAvailableAdapter = false; // 支付宝小程序当蓝牙适配器关闭，再次进行蓝牙操作需要重新打开，微信只需要打开一次就行 _.getAppPlatform() === 'ant' && (this.isInitializedAdapter = false); this.bm.connectStatus = ConnectStatus.disconnected; this.callBackConnectStatus(ErrorCallbackEvent.Error_ConnectStatus_CB_PowerOff); } }); // 先关闭再打开蓝牙适配器，避免出现某些机型打开无效的情况 return _.api('closeBluetoothAdapter') .then(__ => { // 打开蓝牙适配器 return _.api('openBluetoothAdapter') }).then(res => { this.bm.log('openBluetoothAdapter success', res); this.isInitializedAdapter = true; this.isAvailableAdapter = true; return Promise.resolve(); }).catch(e => { this.bm.log('openBluetoothAdapter fail', e); this.isInitializedAdapter = false; this.isAvailableAdapter = false; this.bm.connectStatus = ConnectStatus.disconnected; return Promise.reject(e); }) } else { return Promise.resolve(); } } ” 。提示错误“onOnBluetoothAdapterStateChange should accept a function instead of object” ，请修改

把代码中的：

_.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange')
  .then(__ => __)
  .catch(__ => __);

修改为：

_.api('onBluetoothAdapterStateChange', res => {
  this.bm.log('onBluetoothAdapterStateChange', res);
  if (res.available && !this.isAvailableAdapter) {
    this.isAvailableAdapter = true;
    this.callBackConnectStatus(SuccessCallbackEvent.Success_ConnectStatus_CB_PowerOn);
  } else if (!res.available) {
    this.isAvailableAdapter = false;
    _.getAppPlatform() === 'ant' && (this.isInitializedAdapter = false);
    this.bm.connectStatus = ConnectStatus.disconnected;
    this.callBackConnectStatus(ErrorCallbackEvent.Error_ConnectStatus_CB_PowerOff);
  }
});

这是因为在调用 `_.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange')` 方法时，第二个参数应该是一个函数而不是一个字符串。修改后，将在函数内部处理蓝牙适配器状态的变化。