Service and Binder(1)

Aidl定义:

IRemoteService.aidl

package com.bst.test;

import com.bst.test.IRemoteServiceCallback;
/**
 * Example of defining an interface for calling on to a remote service
 * (running in another process).
 */
interface IRemoteService {
    /**
     * Often you want to allow a service to call back to its clients.
     * This shows how to do so, by registering a callback interface with
     * the service.
     */
    void registerCallback(IRemoteServiceCallback cb);
    
    /**
     * Remove a previously registered callback interface.
     */
    void unregisterCallback(IRemoteServiceCallback cb);
    
    void updateValue();
}

IRemoteServiceCallback.aidl

package com.bst.test;

/**
 * Example of a callback interface used by IRemoteService to send
 * synchronous notifications back to its clients.  Note that this is a
 * one-way interface so the server does not block waiting for the client.
 */
oneway interface IRemoteServiceCallback {
    /**
     * Called when the service has a new value for you.
     */
    void valueChanged(int value);
}