Class MessageQueue.OnFileDescriptorEventListener

Namespace

Android.Os

Assembly

MASES.Netdroid.dll

https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html

public class MessageQueue.OnFileDescriptorEventListener : JVMBridgeListener, IDynamicMetaObjectProvider, IJVMBridgeCore, IEquatable<IJVMBridgeBaseInstance>, IDisposable, IJVMBridgeBaseStatic, IJVMBridgeBase, IJVMBridgeBaseInstance, IJVMBridgeDefinition

Inheritance

object

DynamicObject

JVMBridgeBase

JVMBridgeBase<JVMBridgeListener>

JVMBridgeListener

MessageQueue.OnFileDescriptorEventListener

Implements

IDynamicMetaObjectProvider

IJVMBridgeCore

IEquatable<IJVMBridgeBaseInstance>

IDisposable

IJVMBridgeBaseStatic

IJVMBridgeBase

IJVMBridgeBaseInstance

IJVMBridgeDefinition

Derived

MessageQueue.OnFileDescriptorEventListenerDirect

Extension Methods

JNetCoreExtensions.Class<TClass>(TClass)

JNetCoreExtensions.DisposeIfDisposable(object)

Constructors

OnFileDescriptorEventListener(IJVMBridgeBaseInitializer)

Initializer used internally by JCOBridge. Do not use directly.

[Obsolete("This public initializer is needed for JCOBridge internal use, other uses can produce unidentifiable behaviors.")]
public OnFileDescriptorEventListener(IJVMBridgeBaseInitializer initializer)

Parameters

initializer IJVMBridgeBaseInitializer

OnFileDescriptorEventListener(params object[])

Generic constructor used by JCOBridge when a derived class needs to forward arguments to the base JVMBridgeBase class.

public OnFileDescriptorEventListener(params object[] args)

Parameters

args object[]

Properties

BridgeClassName

Java class name to be instantiated

public override string BridgeClassName { get; }

Property Value

string

EVENT_ERROR

https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html#EVENT_ERROR

public static int EVENT_ERROR { get; set; }

Property Value

int

EVENT_INPUT

https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html#EVENT_INPUT

public static int EVENT_INPUT { get; set; }

Property Value

int

EVENT_OUTPUT

https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html#EVENT_OUTPUT

public static int EVENT_OUTPUT { get; set; }

Property Value

int

OnOnFileDescriptorEvents

Handler for https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html#onFileDescriptorEvents(java.io.FileDescriptor,int)

public Func<FileDescriptor, int, int> OnOnFileDescriptorEvents { get; set; }

Property Value

Func<FileDescriptor, int, int>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnFileDescriptorEventsDispose

Optional handler invoked after the event handler returns, to dispose the JVM object returned by this event.

public Action<int> OnOnFileDescriptorEventsDispose { get; set; }

Property Value

Action<int>

Remarks

Set OnOnFileDescriptorEventsDispose when the event handler returns a JVM-backed object that is no longer needed after the call. The handler receives the return value and is responsible for calling Dispose() on it, releasing the underlying JVM global reference immediately instead of waiting for the .NET garbage collector to finalize it. If not set, the return value is not disposed automatically.

Methods

InitializeHandlers(Type)

Handlers initializer for MessageQueue.OnFileDescriptorEventListener

protected virtual void InitializeHandlers(Type listenerRuntimeType)

Parameters

listenerRuntimeType Type

ListenerShallManageEvent(int)

Invoked from the JVMBridgeListener on each received event to notify the user which can decide to abort the execution for the specific event returning false

protected override bool ListenerShallManageEvent(int eventIndex)

Parameters

eventIndex int

The index of the event triggered as returned from AddEventHandler(string, EventHandler) or AddEventHandler<TDataClass>(string, EventHandler<CLRListenerEventArgs<TDataClass>>)

Returns

bool

Returns true to continue event evaluation, false to return the control to the JVM

Remarks

By default every event continues the execution and reads the data from JVM; this implies an extra cost which can be limited using ListenerShallManageEvent(int) or the ListenerShallManageEventIndex/ListenerShallManageEventName handlers. Returning false the control is immediately returned to the JVM, anyway the user has received the notification. It can be useful in scenarios where the user is interested in few events and the other are simply discarded to optimize the execution speed. By default, this function invokes ListenerShallManageEventIndex, then try ListenerShallManageEventName if they are set or return true

ListenerShallManageEventHandlers(int)

protected virtual bool ListenerShallManageEventHandlers(int eventIndex)

Parameters

eventIndex int

Returns

bool

OnFileDescriptorEvents(FileDescriptor, int)

https://developer.android.com/reference/android/os/MessageQueue.OnFileDescriptorEventListener.html#onFileDescriptorEvents(java.io.FileDescriptor,int)

public virtual int OnFileDescriptorEvents(FileDescriptor arg0, int arg1)

Parameters

arg0 FileDescriptor

FileDescriptor

arg1 int

int

Returns

int

int