Ionic 2 BLE断开回叫/订阅

Question

尝试订阅断开连接回调时出现此错误。

this.ble.disconnect(this.device_id).subscribe((data) => {
  console.log("disconnected good");
}, error => {
  console.log("disconnected bad");
});

我得到的错误就是这个

 Supplied parameters do not match any signature of call target.
 L116:  if (this.device_id) {
 L117:      this.ble.disconnect(this.device_id).subscribe((data) => {
 L118:              console.log("disconnected good");

Answer 1

disconnect - 函数返回Promise而不是Observable（docs）。

请改为尝试：

this.ble.disconnect(this.device_id)
.then(data => {
    console.log("disconnected good");
}
.catch(error => {
    console.log("disconnected bad");
});

Answer 2

修正：

this.ble.disconnect(this.device_id).then(() => {
  console.log('Disconnected');
});