android.os
public class
public class
android.os.Looper
| java.lang.Object | ||
| android.os.Looper | ||
Class used to run a message loop for a thread. Threads by default do not have a message loop associated with them; to create one, call prepare() in the thread that is to run the loop, and then loop() to have it process messages until the loop is stopped.
Most interaction with a message loop is through the Handler class.
This is a typical example of the implementation of a Looper thread, using the separation of prepare() and loop() to create an initial Handler to communicate with the Looper.
class LooperThread extends Thread {
public Handler mHandler;
public void run() {
Looper.prepare();
mHandler = new Handler() {
public void handleMessage(Message msg) {
// process incoming messages here
}
};
Looper.loop();
}
}
Summary
Public Methods
| final | static | void | loop() | ||
| Run the message queue in this thread. | |||||
| final | static | Looper | myLooper() | ||
| Return the Looper object associated with the current thread. | |||||
| final | static | MessageQueue | myQueue() | ||
| Return the MessageQueue object associated with the current thread. | |||||
| final | static | void | prepare() | ||
| Initialize the current thread as a looper. | |||||
| void | quit() | ||||
Methods inherited
from class
java.lang.Object
Details
Public Methods
public static final void loop()
Run the message queue in this thread. Be sure to call
quit() to end the loop.
public static final Looper myLooper()
Return the Looper object associated with the current thread.
public static final MessageQueue myQueue()
Return the MessageQueue object associated with the current
thread.