Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Methods](https://developer.android.com/reference/android/hardware/serial/SerialManager#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/hardware/serial/SerialManager#inhmethods)

# SerialManager

*** ** * ** ***

` public final class SerialManager `   
` extends https://developer.android.com/reference/java/lang/Object ` ` `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.hardware.serial.SerialManager |

<br />

*** ** * ** ***

This class allows you to communicate with Serial ports.

## Summary

| ### Public methods ||
|---|---|
| ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/hardware/serial/SerialPort>` | ` https://developer.android.com/reference/android/hardware/serial/SerialManager#getPorts()() ` Enumerates serial ports. |
| ` void` | ` https://developer.android.com/reference/android/hardware/serial/SerialManager#registerSerialPortListener(java.util.concurrent.Executor,%20android.hardware.serial.SerialPortListener)(https://developer.android.com/reference/java/util/concurrent/Executor executor, https://developer.android.com/reference/android/hardware/serial/SerialPortListener listener) ` Register a listener to monitor serial port connections and disconnections. |
| ` void` | ` https://developer.android.com/reference/android/hardware/serial/SerialManager#unregisterSerialPortListener(android.hardware.serial.SerialPortListener)(https://developer.android.com/reference/android/hardware/serial/SerialPortListener listener) ` Unregister a listener that monitored serial port connections and disconnections. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` https://developer.android.com/reference/java/lang/Object#finalize()() `

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
` final https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait()() `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.

## Public methods

### getPorts

Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public List<SerialPort> getPorts ()
```

Enumerates serial ports.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/hardware/serial/SerialPort>` | This value cannot be `null`. <br /> |

### registerSerialPortListener

Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void registerSerialPortListener (Executor executor, 
                SerialPortListener listener)
```

Register a listener to monitor serial port connections and disconnections.

<br />

| Parameters ||
|---|---|
| `executor` | `Executor`: This value cannot be `null`. Callback and listener events are dispatched through this `https://developer.android.com/reference/java/util/concurrent/Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `https://developer.android.com/reference/android/content/Context#getMainExecutor()`. Otherwise, provide an `https://developer.android.com/reference/java/util/concurrent/Executor` that dispatches to an appropriate thread. <br /> |
| `listener` | `SerialPortListener`: This value cannot be `null`. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/lang/IllegalStateException` | if this listener has already been registered. |

### unregisterSerialPortListener

Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void unregisterSerialPortListener (SerialPortListener listener)
```

Unregister a listener that monitored serial port connections and disconnections.

<br />

| Parameters ||
|---|---|
| `listener` | `SerialPortListener`: This value cannot be `null`. <br /> |