android.os

Class Handler

java.lang.Object

android.os.Handler

Direct Known Subclasses:

AsyncQueryHandler, AsyncQueryHandler.WorkerHandler, HttpAuthHandler, SslErrorHandler

public class Handler
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Handler.Callback

Constructor Summary

Constructors

Constructor and Description
Handler()
Handler(Handler.Callback callback)
Handler(Looper looper)
Handler(Looper looper, Handler.Callback callback)

Method Summary

Methods

Modifier and Type	Method and Description
void	dispatchMessage(Message msg)
void	dump(Printer pw, String prefix)
Looper	getLooper()
String	getMessageName(Message message)
void	handleMessage(Message msg)
boolean	hasMessages(int what)
boolean	hasMessages(int what, Object object)
Message	obtainMessage()
Message	obtainMessage(int what)
Message	obtainMessage(int what, int arg1, int arg2)
Message	obtainMessage(int what, int arg1, int arg2, Object obj)
Message	obtainMessage(int what, Object obj)
boolean	post(Runnable r)
boolean	postAtFrontOfQueue(Runnable r)
boolean	postAtTime(Runnable r, long uptimeMillis)
boolean	postAtTime(Runnable r, Object token, long uptimeMillis)
boolean	postDelayed(Runnable r, long delayMillis)
void	removeCallbacks(Runnable r)
void	removeCallbacks(Runnable r, Object token)
void	removeCallbacksAndMessages(Object token)
void	removeMessages(int what)
void	removeMessages(int what, Object object)
boolean	sendEmptyMessage(int what)
boolean	sendEmptyMessageAtTime(int what, long uptimeMillis)
boolean	sendEmptyMessageDelayed(int what, long delayMillis)
boolean	sendMessage(Message msg)
boolean	sendMessageAtFrontOfQueue(Message msg)
boolean	sendMessageAtTime(Message msg, long uptimeMillis)
boolean	sendMessageDelayed(Message msg, long delayMillis)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Handler

public Handler()

Handler

public Handler(Handler.Callback callback)

Handler

public Handler(Looper looper)

Handler

public Handler(Looper looper,
       Handler.Callback callback)

Method Detail

handleMessage

public void handleMessage(Message msg)

dispatchMessage

public void dispatchMessage(Message msg)

getMessageName

public String getMessageName(Message message)

obtainMessage

public final Message obtainMessage()

obtainMessage

public final Message obtainMessage(int what)

obtainMessage

public final Message obtainMessage(int what,
                    Object obj)

obtainMessage

public final Message obtainMessage(int what,
                    int arg1,
                    int arg2)

obtainMessage

public final Message obtainMessage(int what,
                    int arg1,
                    int arg2,
                    Object obj)

post

public final boolean post(Runnable r)

postAtTime

public final boolean postAtTime(Runnable r,
                 long uptimeMillis)

postAtTime

public final boolean postAtTime(Runnable r,
                 Object token,
                 long uptimeMillis)

postDelayed

public final boolean postDelayed(Runnable r,
                  long delayMillis)

postAtFrontOfQueue

public final boolean postAtFrontOfQueue(Runnable r)

removeCallbacks

public final void removeCallbacks(Runnable r)

removeCallbacks

public final void removeCallbacks(Runnable r,
                   Object token)

sendMessage

public final boolean sendMessage(Message msg)

sendEmptyMessage

public final boolean sendEmptyMessage(int what)

sendEmptyMessageDelayed

public final boolean sendEmptyMessageDelayed(int what,
                              long delayMillis)

sendEmptyMessageAtTime

public final boolean sendEmptyMessageAtTime(int what,
                             long uptimeMillis)

sendMessageDelayed

public final boolean sendMessageDelayed(Message msg,
                         long delayMillis)

sendMessageAtTime

public boolean sendMessageAtTime(Message msg,
                        long uptimeMillis)

sendMessageAtFrontOfQueue

public final boolean sendMessageAtFrontOfQueue(Message msg)

removeMessages

public final void removeMessages(int what)

removeMessages

public final void removeMessages(int what,
                  Object object)

removeCallbacksAndMessages

public final void removeCallbacksAndMessages(Object token)

hasMessages

public final boolean hasMessages(int what)

hasMessages

public final boolean hasMessages(int what,
                  Object object)

getLooper

public final Looper getLooper()

dump

public final void dump(Printer pw,
        String prefix)

toString

public String toString()

Overrides:

toString in class Object