The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...
/*
* Copyright (C) 2012 The Android开源工程
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.apis.app;
import android.app.Activity;
import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.IBinder;
import android.os.RemoteCallbackList;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.TextView;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;
/**
* This is an example if implementing a Service that uses android:isolatedProcess.
*/
public class IsolatedService extends Service {
/**
* This is a list of callbacks that have been registered with the
* service. Note that this is package scoped (instead of private) so
* that it can be accessed more efficiently from inner classes.
*/
final RemoteCallbackList<IRemoteServiceCallback> mCallbacks
= new RemoteCallbackList<IRemoteServiceCallback>();
int mValue = 0;
@Override
public void onCreate() {
Log.i("IsolatedService", "Creating IsolatedService: " + this);
}
@Override
public void onDestroy() {
Log.i("IsolatedService", "Destroying IsolatedService: " + this);
// Unregister all callbacks.
mCallbacks.kill();
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
/**
* The IRemoteInterface is defined through IDL
*/
private final IRemoteService.Stub mBinder = new IRemoteService.Stub() {
public void registerCallback(IRemoteServiceCallback cb) {
if (cb != null) mCallbacks.register(cb);
}
public void unregisterCallback(IRemoteServiceCallback cb) {
if (cb != null) mCallbacks.unregister(cb);
}
};
@Override
public void onTaskRemoved(Intent rootIntent) {
Log.i("IsolatedService", "Task removed in " + this + ": " + rootIntent);
stopSelf();
}
private void broadcastValue(int value) {
// Broadcast to all clients the new value.
final int N = mCallbacks.beginBroadcast();
for (int i=0; i<N; i++) {
try {
mCallbacks.getBroadcastItem(i).valueChanged(value);
} catch (RemoteException e) {
// The RemoteCallbackList will take care of removing
// the dead object for us.
}
}
mCallbacks.finishBroadcast();
}
// ----------------------------------------------------------------------
public static class Controller extends Activity {
static class ServiceInfo {
final Activity mActivity;
final Class<?> mClz;
final TextView mStatus;
boolean mServiceBound;
IRemoteService mService;
ServiceInfo(Activity activity, Class<?> clz,
int start, int stop, int bind, int status) {
mActivity = activity;
mClz = clz;
Button button = (Button)mActivity.findViewById(start);
button.setOnClickListener(mStartListener);
button = (Button)mActivity.findViewById(stop);
button.setOnClickListener(mStopListener);
CheckBox cb = (CheckBox)mActivity.findViewById(bind);
cb.setOnClickListener(mBindListener);
mStatus = (TextView)mActivity.findViewById(status);
}
void destroy() {
if (mServiceBound) {
mActivity.unbindService(mConnection);
}
}
private OnClickListener mStartListener = new OnClickListener() {
public void onClick(View v) {
mActivity.startService(new Intent(mActivity, mClz));
}
};
private OnClickListener mStopListener = new OnClickListener() {
public void onClick(View v) {
mActivity.stopService(new Intent(mActivity, mClz));
}
};
private OnClickListener mBindListener = new OnClickListener() {
public void onClick(View v) {
if (((CheckBox)v).isChecked()) {
if (!mServiceBound) {
if (mActivity.bindService(new Intent(mActivity, mClz),
mConnection, Context.BIND_AUTO_CREATE)) {
mServiceBound = true;
mStatus.setText("BOUND");
}
}
} else {
if (mServiceBound) {
mActivity.unbindService(mConnection);
mServiceBound = false;
mStatus.setText("");
}
}
}
};
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
mService = IRemoteService.Stub.asInterface(service);
if (mServiceBound) {
mStatus.setText("CONNECTED");
}
}
public void onServiceDisconnected(ComponentName className) {
// This is called when the connection with the service has been
// unexpectedly disconnected -- that is, its process crashed.
mService = null;
if (mServiceBound) {
mStatus.setText("DISCONNECTED");
}
}
};
}
ServiceInfo mService1;
ServiceInfo mService2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.isolated_service_controller);
mService1 = new ServiceInfo(this, IsolatedService.class, R.id.start1, R.id.stop1,
R.id.bind1, R.id.status1);
mService2 = new ServiceInfo(this, IsolatedService2.class, R.id.start2, R.id.stop2,
R.id.bind2, R.id.status2);
}
@Override
protected void onDestroy() {
super.onDestroy();
mService1.destroy();
mService2.destroy();
}
}
}