程序包 ohos.eventhandler

类 EventRunner

java.lang.Object

ohos.eventhandler.EventRunner

public final class EventRunner
extends Object

Creates and manages the event queue in the current thread.

After you call the run() method, the EventRunner will continuously retrieve events from the event queue and dispatch the events to the matching EventHandler. Then the EventHandler#processEvent(InnerEvent) method will be called to process the events.

从以下版本开始:

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方法概要

限定符和类型	方法	说明
static EventRunner	create()	Creates a thread and starts an EventRunner.
static EventRunner	create(boolean inNewThread)	Creates a thread and starts an EventRunner with the inNewThread parameter passed to specify who will manage the EventRunner.
static EventRunner	create(String newThreadName)	Creates a thread with the given name and starts an EventRunner.
static EventRunner	current()	Obtains the EventRunner object bound to the current thread.
void	dump(Dumper dumper)	Prints out the internal information about an object in the specified format, helping you diagnose internal errors of the object.
static EventQueue	getCurrentEventQueue()	Obtains the event queue of the EventRunner associated with the current thread.
EventQueue	getEventQueue()	Obtains the event queue of this EventRunner.
static EventRunner	getMainEventRunner()	Obtains the EventRunner for the main thread of the application.
long	getThreadId()	Obtains the ID of the worker thread associated with this EventRunner.
boolean	isCurrentRunnerThread()	Checks whether the current thread is the worker thread of this EventRunner.
boolean	run()	Starts an EventRunner that is not automatically managed by the system.
void	setLogger(Logger logger)	Sets the Logger object for logging messages that are processed by this EventRunner.
boolean	stop()	Stops an EventRunner that is not automatically managed by the system.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

current

public static EventRunner current()

Obtains the EventRunner object bound to the current thread.

返回:

Returns the EventRunner object bound to the current thread; returns null if no object is bound.

从以下版本开始:

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create

public static EventRunner create()

Creates a thread and starts an EventRunner. The EventRunner is automatically managed by the system by default.

返回:

Returns an EventRunner in the new thread.

从以下版本开始:

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create

public static EventRunner create(boolean inNewThread)

Creates a thread and starts an EventRunner with the inNewThread parameter passed to specify who will manage the EventRunner.

参数:

inNewThread - Specifies whether the EventRunner will be automatically managed by the system. The value true indicates that it will be automatically managed by the system, and the value false indicates that it needs to be manually managed by yourself.

返回:

Returns an EventRunner in the new thread.

从以下版本开始:

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create

public static EventRunner create(String newThreadName)

Creates a thread with the given name and starts an EventRunner. The EventRunner is automatically managed by the system by default.

参数:

newThreadName - Indicates the name of the new thread. If this parameter is null or an empty string is passed, the default name is used.

返回:

Returns an EventRunner in the new thread.

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setLogger

public void setLogger(Logger logger)

Sets the Logger object for logging messages that are processed by this EventRunner.

参数:

logger - Indicates the Logger object you have implemented for logging messages.

从以下版本开始:

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dump

public void dump(Dumper dumper)

Prints out the internal information about an object in the specified format, helping you diagnose internal errors of the object.

参数:

dumper - Indicates the Dumper object you have implemented to process the output internal information.

从以下版本开始:

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getMainEventRunner

public static EventRunner getMainEventRunner()

Obtains the EventRunner for the main thread of the application.

The EventRunner for the main thread (also referred to as the UI thread) is generated by the system during application initialization.

返回:

Returns the EventRunner for the main thread of the application.

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getThreadId

public long getThreadId()

Obtains the ID of the worker thread associated with this EventRunner.

返回:

Returns the worker thread ID of this EventRunner.

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isCurrentRunnerThread

public boolean isCurrentRunnerThread()

Checks whether the current thread is the worker thread of this EventRunner.

返回:

Returns true if the current thread is the worker thread of this EventRunner; returns false otherwise.

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getEventQueue

public EventQueue getEventQueue()

Obtains the event queue of this EventRunner.

返回:

Returns the event queue of this EventRunner.

从以下版本开始:

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getCurrentEventQueue

public static EventQueue getCurrentEventQueue()

Obtains the event queue of the EventRunner associated with the current thread.

This static method can be called from anywhere.

返回:

Returns the event queue of the EventRunner associated with the current thread.

从以下版本开始:

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run

public boolean run()
            throws IllegalStateException

Starts an EventRunner that is not automatically managed by the system. System-managed EventRunner objects are automatically started by the system.

返回:

Returns true if the EventRunner is started; returns false otherwise.

抛出:

IllegalStateException - Throws this exception if the EventRunner is automatically managed by the system.

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stop

public boolean stop()
             throws IllegalStateException

Stops an EventRunner that is not automatically managed by the system. System-managed EventRunner objects are automatically stopped by the system.

返回:

Returns true if the EventRunner is stopped; returns false otherwise.

抛出:

IllegalStateException - Throws this exception if the EventRunner is automatically managed by the system.

从以下版本开始:

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