Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Inherited Constants](https://developer.android.com/reference/android/net/Network#inhconstants) \| [Fields](https://developer.android.com/reference/android/net/Network#lfields) \| [Methods](https://developer.android.com/reference/android/net/Network#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/net/Network#inhmethods)

# Network

*** ** * ** ***


`
public


class
Network
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


implements

https://developer.android.com/reference/android/os/Parcelable


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.net.Network |

<br />

*** ** * ** ***

Identifies a `Network`. This is supplied to applications via
`https://developer.android.com/reference/android/net/ConnectivityManager.NetworkCallback` in response to the active
`https://developer.android.com/reference/android/net/ConnectivityManager#requestNetwork(android.net.NetworkRequest,%20android.app.PendingIntent)` or passive
`https://developer.android.com/reference/android/net/ConnectivityManager#registerNetworkCallback(android.net.NetworkRequest,%20android.app.PendingIntent)` calls.
It is used to direct traffic to the given `Network`, either on a `https://developer.android.com/reference/java/net/Socket` basis
through a targeted `https://developer.android.com/reference/javax/net/SocketFactory` or process-wide via
`https://developer.android.com/reference/android/net/ConnectivityManager#bindProcessToNetwork(android.net.Network)`.

## Summary

| ### Inherited constants |
|---|
| From interface `https://developer.android.com/reference/android/os/Parcelable` |---|---| | `int` | `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor. | | `int` | `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`". | |

| ### Fields ||
|---|---|
| ` public static final https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/net/Network>` | `https://developer.android.com/reference/android/net/Network#CREATOR` |

| ### Public methods ||
|---|---|
| ` void` | ` https://developer.android.com/reference/android/net/Network#bindSocket(java.net.DatagramSocket)(https://developer.android.com/reference/java/net/DatagramSocket socket) ` Binds the specified `https://developer.android.com/reference/java/net/DatagramSocket` to this `Network`. |
| ` void` | ` https://developer.android.com/reference/android/net/Network#bindSocket(java.net.Socket)(https://developer.android.com/reference/java/net/Socket socket) ` Binds the specified `https://developer.android.com/reference/java/net/Socket` to this `Network`. |
| ` void` | ` https://developer.android.com/reference/android/net/Network#bindSocket(java.io.FileDescriptor)(https://developer.android.com/reference/java/io/FileDescriptor fd) ` Binds the specified `https://developer.android.com/reference/java/io/FileDescriptor` to this `Network`. |
| ` int` | ` https://developer.android.com/reference/android/net/Network#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` boolean` | ` https://developer.android.com/reference/android/net/Network#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. |
| ` static https://developer.android.com/reference/android/net/Network` | ` https://developer.android.com/reference/android/net/Network#fromNetworkHandle(long)(long networkHandle) ` Returns a `https://developer.android.com/reference/android/net/Network` object given a handle returned from `https://developer.android.com/reference/android/net/Network#getNetworkHandle()`. |
| ` https://developer.android.com/reference/java/net/InetAddress` | ` https://developer.android.com/reference/android/net/Network#getAllByName(java.lang.String)(https://developer.android.com/reference/java/lang/String host) ` Operates the same as `InetAddress.getAllByName` except that host resolution is done on this network. |
| ` https://developer.android.com/reference/java/net/InetAddress` | ` https://developer.android.com/reference/android/net/Network#getByName(java.lang.String)(https://developer.android.com/reference/java/lang/String host) ` Operates the same as `InetAddress.getByName` except that host resolution is done on this network. |
| ` long` | ` https://developer.android.com/reference/android/net/Network#getNetworkHandle()() ` Returns a handle representing this `Network`, for use with the NDK API. |
| ` https://developer.android.com/reference/javax/net/SocketFactory` | ` https://developer.android.com/reference/android/net/Network#getSocketFactory()() ` Returns a `https://developer.android.com/reference/javax/net/SocketFactory` bound to this network. |
| ` int` | ` https://developer.android.com/reference/android/net/Network#hashCode()() ` Returns a hash code value for the object. |
| ` https://developer.android.com/reference/java/net/URLConnection` | ` https://developer.android.com/reference/android/net/Network#openConnection(java.net.URL)(https://developer.android.com/reference/java/net/URL url) ` Opens the specified `https://developer.android.com/reference/java/net/URL` on this `Network`, such that all traffic will be sent on this Network. |
| ` https://developer.android.com/reference/java/net/URLConnection` | ` https://developer.android.com/reference/android/net/Network#openConnection(java.net.URL,%20java.net.Proxy)(https://developer.android.com/reference/java/net/URL url, https://developer.android.com/reference/java/net/Proxy proxy) ` Opens the specified `https://developer.android.com/reference/java/net/URL` on this `Network`, such that all traffic will be sent on this Network. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/net/Network#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/net/Network#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Flatten this object in to a Parcel. |

| ### 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*. | ||
| From interface ` https://developer.android.com/reference/android/os/Parcelable ` |---|---| | ` abstract int` | ` https://developer.android.com/reference/android/os/Parcelable#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. | | ` abstract void` | ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Flatten this object in to a Parcel. | ||

## Fields

### CREATOR

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final Creator<Network> CREATOR
```

<br />

<br />

## Public methods

### bindSocket

Added in [API level 22](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void bindSocket (DatagramSocket socket)
```

Binds the specified `https://developer.android.com/reference/java/net/DatagramSocket` to this `Network`. All data traffic on the
socket will be sent on this `Network`, irrespective of any process-wide network binding
set by `https://developer.android.com/reference/android/net/ConnectivityManager#bindProcessToNetwork(android.net.Network)`. The socket must not be
connected.

<br />

| Parameters ||
|---|---|
| `socket` | `DatagramSocket` <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/io/IOException` |   |

### bindSocket

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void bindSocket (Socket socket)
```

Binds the specified `https://developer.android.com/reference/java/net/Socket` to this `Network`. All data traffic on the socket
will be sent on this `Network`, irrespective of any process-wide network binding set by
`https://developer.android.com/reference/android/net/ConnectivityManager#bindProcessToNetwork(android.net.Network)`. The socket must not be connected.

<br />

| Parameters ||
|---|---|
| `socket` | `Socket` <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/io/IOException` |   |

### bindSocket

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void bindSocket (FileDescriptor fd)
```

Binds the specified `https://developer.android.com/reference/java/io/FileDescriptor` to this `Network`. All data traffic on the
socket represented by this file descriptor will be sent on this `Network`,
irrespective of any process-wide network binding set by
`https://developer.android.com/reference/android/net/ConnectivityManager#bindProcessToNetwork(android.net.Network)`. The socket must not be connected.

<br />

| Parameters ||
|---|---|
| `fd` | `FileDescriptor` <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/io/IOException` |   |

### describeContents

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int describeContents ()
```

Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation. For example, if the object will
include a file descriptor in the output of `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`,
the return value of this method must include the
`https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` bit.

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### equals

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean equals (Object obj)
```

Indicates whether some other object is "equal to" this one.


The `equals` method implements an equivalence relation
on non-null object references:

- It is *reflexive*: for any non-null reference value `x`, `x.equals(x)` should return `true`.
- It is *symmetric*: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
- It is *transitive*: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
- It is *consistent*: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified.
- For any non-null reference value `x`, `x.equals(null)` should return `false`.


An equivalence relation partitions the elements it operates on
into *equivalence classes*; all the members of an
equivalence class are equal to each other. Members of an
equivalence class are substitutable for each other, at least
for some purposes.

<br />

| Parameters ||
|---|---|
| `obj` | `Object`: This value may be `null`. <br /> |

| Returns ||
|---|---|
| `boolean` | `true` if this object is the same as the obj argument; `false` otherwise. <br /> |

### fromNetworkHandle

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static Network fromNetworkHandle (long networkHandle)
```

Returns a `https://developer.android.com/reference/android/net/Network` object given a handle returned from `https://developer.android.com/reference/android/net/Network#getNetworkHandle()`.

<br />

| Parameters ||
|---|---|
| `networkHandle` | `long`: a handle returned from `https://developer.android.com/reference/android/net/Network#getNetworkHandle()`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/net/Network` | A `https://developer.android.com/reference/android/net/Network` object derived from `networkHandle`. <br /> |

### getAllByName

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public InetAddress[] getAllByName (String host)
```

Operates the same as `InetAddress.getAllByName` except that host
resolution is done on this network.

<br />

| Parameters ||
|---|---|
| `host` | `String`: the hostname or literal IP string to be resolved. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/net/InetAddress` | the array of addresses associated with the specified host. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/net/UnknownHostException` | if the address lookup fails. |

### getByName

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public InetAddress getByName (String host)
```

Operates the same as `InetAddress.getByName` except that host
resolution is done on this network.

<br />

| Parameters ||
|---|---|
| `host` | `String`: the hostname to be resolved to an address or `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/net/InetAddress` | the `InetAddress` instance representing the host. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/net/UnknownHostException` | if the address lookup fails. |

### getNetworkHandle

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public long getNetworkHandle ()
```

Returns a handle representing this `Network`, for use with the NDK API.

<br />

| Returns ||
|---|---|
| `long` | <br /> |

### getSocketFactory

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public SocketFactory getSocketFactory ()
```

Returns a `https://developer.android.com/reference/javax/net/SocketFactory` bound to this network. Any `https://developer.android.com/reference/java/net/Socket` created by
this factory will have its traffic sent over this `Network`. Note that if this
`Network` ever disconnects, this factory and any `https://developer.android.com/reference/java/net/Socket` it produced in the
past or future will cease to work.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/javax/net/SocketFactory` | a `https://developer.android.com/reference/javax/net/SocketFactory` which produces `https://developer.android.com/reference/java/net/Socket` instances bound to this `Network`. <br /> |

### hashCode

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int hashCode ()
```

Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
`https://developer.android.com/reference/java/util/HashMap`.


The general contract of `hashCode` is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
- It is *not* required that if two objects are unequal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

<br />

<br />

| Returns ||
|---|---|
| `int` | a hash code value for this object. <br /> |

### openConnection

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public URLConnection openConnection (URL url)
```

Opens the specified `https://developer.android.com/reference/java/net/URL` on this `Network`, such that all traffic will be sent
on this Network. The URL protocol must be `HTTP` or `HTTPS`.

<br />

| Parameters ||
|---|---|
| `url` | `URL` <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/net/URLConnection` | a `URLConnection` to the resource referred to by this URL. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/io/IOException` | if an error occurs while opening the connection. |
| `https://developer.android.com/reference/java/net/MalformedURLException` | if the URL protocol is not HTTP or HTTPS. |

**See also:**

- `https://developer.android.com/reference/java/net/URL#openConnection()`

### openConnection

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public URLConnection openConnection (URL url, 
                Proxy proxy)
```

Opens the specified `https://developer.android.com/reference/java/net/URL` on this `Network`, such that all traffic will be sent
on this Network. The URL protocol must be `HTTP` or `HTTPS`.

<br />

| Parameters ||
|---|---|
| `url` | `URL` <br /> |
| `proxy` | `Proxy`: the proxy through which the connection will be established. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/net/URLConnection` | a `URLConnection` to the resource referred to by this URL. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/io/IOException` | if an error occurs while opening the connection. |
| `https://developer.android.com/reference/java/lang/IllegalArgumentException` | if the argument proxy is null. |
| `https://developer.android.com/reference/java/net/MalformedURLException` | if the URL protocol is not HTTP or HTTPS. |

**See also:**

- `https://developer.android.com/reference/java/net/URL#openConnection()`

### toString

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String toString ()
```

Returns a string representation of the object.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | a string representation of the object. <br /> |

### writeToParcel

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void writeToParcel (Parcel dest, 
                int flags)
```

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `dest` | `Parcel`: The Parcel in which the object should be written. This value cannot be `null`. <br /> |
| `flags` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |