Ionic 2 BLE断开回拨/订阅

Question

尝试订阅断开连接回叫时出现此错误。

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

错误我得到的是这种

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

的disconnect - 函数返回一个Promise不是Observable（docs）。

试试这个：

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'); 
});