如何在android（GCM）中发送/接收远程通知
我已成功注册gcm。但未能接收任何通知。 请帮忙。 提前感谢……：） } 主要活动 公共类MainActivity扩展了ActionBarActivity{如何在android（GCM）中发送/接收远程通知,android,push-notification,google-cloud-messaging,Android,Push Notification,Google Cloud Messaging,我已成功注册gcm。但未能接收任何通知。 请帮忙。 提前感谢……：） } 主要活动 公共类MainActivity扩展了ActionBarActivity{ TextView lblMessage; Controller aController; // Asyntask AsyncTask<Void, Void, Void> mRegisterTask; public static String name; public static String email; @Overri
TextView lblMessage;
Controller aController;
// Asyntask
AsyncTask<Void, Void, Void> mRegisterTask;
public static String name;
public static String email;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Get Global Controller Class object (see application tag in AndroidManifest.xml)
aController = (Controller) getApplicationContext();
// Check if Internet present
if (!aController.isConnectingToInternet()) {
// Internet Connection is not present
aController.showAlertDialog(MainActivity.this,
"Internet Connection Error",
"Please connect to Internet connection", false);
// stop executing code by return
return;
}
// Getting name, email from intent
Intent i = getIntent();
name = i.getStringExtra("name");
email = i.getStringExtra("email");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest permissions was properly set
GCMRegistrar.checkManifest(this);
lblMessage = (TextView) findViewById(R.id.lblMessage);
// Register custom Broadcast receiver to show messages on activity
registerReceiver(mHandleMessageReceiver, new IntentFilter(
Config.DISPLAY_MESSAGE_ACTION));
// Get GCM registration id
final String regId = GCMRegistrar.getRegistrationId(this);
// Check if regid already presents
if (regId.equals("")) {
// Register with GCM
GCMRegistrar.register(this, Config.GOOGLE_SENDER_ID);
} else {
// Device is already registered on GCM Server
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
Toast.makeText(getApplicationContext(),
"Already registered with GCM Server",
Toast.LENGTH_LONG).
show();
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
// Register on our server
// On server creates a new user
aController.register(context, name, email, regId);
return null;
}
@Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
// execute AsyncTask
mRegisterTask.execute(null, null, null);
}
}
}
TextView-lblMessage；
控制器；控制器；
//阿森塔克
异步任务mRegisterTask；
公共静态字符串名；
公共静态字符串电子邮件；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
//获取全局控制器类对象（请参阅AndroidManifest.xml中的应用程序标记）
a控制器=（控制器）getApplicationContext（）；
//检查互联网是否存在
如果（！aController.isConnectingToInternet（））{
//Internet连接不存在
aController.showAlertDialog（MainActivity.this，
“Internet连接错误”，
“请连接到Internet连接”，错误）；
//通过返回停止执行代码
返回；
}
//从intent获取姓名、电子邮件
Intent i=getIntent（）；
名称=i.getStringExtra（“名称”）；
email=i.getStringExtra（“电子邮件”）；
//确保设备具有正确的依赖项。
GCMRegistar.检查装置（本）；
//确保清单权限设置正确
GCMRegistar.检查清单（本）；
lblMessage=（TextView）findViewById（R.id.lblMessage）；
//注册自定义广播接收器以显示活动中的消息
registerReceiver（mHandleMessageReceiver，新意向过滤器(
配置显示（信息（动作））；
//获取GCM注册id
最终字符串regId=gcmregistar.getRegistrationId（this）；
//检查regid是否已出现
if（regId.equals（“”）{
//向GCM注册
gcmregistar.register（这个，Config.GOOGLE\u SENDER\u ID）；
}否则{
//设备已在GCM服务器上注册
if（GCMRegistrar.isRegisteredOnServer（本））{
//跳过注册。
Toast.makeText（getApplicationContext（），
“已向GCM服务器注册”，
吐司。长度（长）。
show（）；
}否则{
//尝试再次注册，但不要在UI线程中注册。
//还需要取消onDestroy（）线程，
//因此，使用AsyncTask而不是原始线程。
最终上下文=此；
mRegisterTask=newasynctask（）{
@凌驾
受保护的Void doInBackground（Void…参数）{
//在我们的服务器上注册
//在服务器上创建新用户
a控制器。注册（上下文、名称、电子邮件、注册号）；
返回null；
}
@凌驾
受保护的void onPostExecute（void结果）{
mRegisterTask=null；
}
};
//执行异步任务
mRegisterTask.execute（null，null，null）；
}
}
}
@覆盖
公共void onReceive（上下文、意图）{
String newMessage=intent.getExtras（）.getString（Config.EXTRA_MESSAGE）；
//在手机处于睡眠状态时唤醒手机
aController.acquireWakeLock（getApplicationContext（））；
//在屏幕上显示消息
lblMessage.append（newMessage+“”）；
Toast.makeText（getApplicationContext（），
“收到消息：”+newMessage，
Toast.LENGTH_LONG）.show（）；
//释放尾流锁
a控制器。释放WakeLock（）；
}
};
单文件
send_message.php
class GCMReg extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
try {
Log.e("testing", "yes i am calling");
GCMRegistrar.checkDevice(Home.this);
GCMRegistrar.checkManifest(Home.this);
GCMRegistrar.register(Home.this, GCMIntentService.SENDER_ID);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
}
}
GCMReg类扩展了异步任务{
@凌驾
受保护的Void doInBackground（Void…参数）{
试一试{
Log.e（“测试”，“是的，我在打电话”）；
gcmregistar.checkDevice（Home.this）；
gcmregistar.checkManifest（Home.this）；
gcmregistar.register（Home.this、gcminentservice.SENDER\u ID）；
}捕获（例外e）{
e、 printStackTrace（）；
}
返回null；
}
@凌驾
受保护的void onPostExecute（void结果）{
super.onPostExecute（结果）；
}
}
public class GCMIntentService extends GCMBaseIntentService {
public static final String SENDER_ID = "GCM ID";
public static String message;
String gcmRecData, status;
ComponentName cn;
int AllTimeLength = 0;
boolean updateList = false;
public GCMIntentService() {
super(SENDER_ID);
}
@Override
protected void onRegistered(Context context, String registrationId) {
Log.e("testing", "onRegistered: registrationId=" + registrationId);
String urlToUpdateId;
urlToUpdateId = "enter your url for update token";
new updateId(context).execute(urlToUpdateId);
}
@Override
protected void onUnregistered(Context context, String registrationId) {
}
@Override
protected void onMessage(final Context context, Intent data) {
// Message from PHP server
gcmRecData = data.getStringExtra("message");
Log.e("test", "message :- " + gcmRecData);
// try {
// JSONParser jParser = new JSONParser();
// String json = jParser.getJSONFromUrl(gcmRecData);
// JSONObject jobject = new JSONObject(gcmRecData);
message = gcmRecData;
// BuildNotification(new Intent(context, Home.class), context);
// } catch (JSONException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
BuildNotification(new Intent(context, Foregound.class), context);
// try {
// XMLParser xp = new XMLParser();
// Document doc = xp.getDomElement(gcmRecData);
// NodeList nl = doc.getElementsByTagName("response");
// for (int i = 0; i < nl.getLength(); i++) {
// Element e = (Element) nl.item(i);
// message = xp.getValue(e, "message");
// BuildNotification(new Intent(context, Home.class), context);
//
// }
// } catch (Exception e) {
// e.printStackTrace();
// }
}
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
public void BuildNotification(Intent it, Context context) {
Log.i("GCM INtent ", "" + "Build");
// if (context.getPackageName()
// .equalsIgnoreCase(
// ((ActivityManager) GCMIntentService.this
// .getSystemService(Context.ACTIVITY_SERVICE))
// .getRunningTasks(1).get(0).topActivity
// .getPackageName())) {
//
// } else {
PendingIntent pIntent = PendingIntent.getActivity(context, 0, it,
PendingIntent.FLAG_UPDATE_CURRENT);
Uri soundUri = RingtoneManager
.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Notification notification = new Notification.Builder(context)
.setSound(soundUri).setSmallIcon(R.drawable.appicon)
.setWhen(System.currentTimeMillis())
.setContentTitle("Byrchall High School")
.setContentText(message).setContentIntent(pIntent)
.getNotification();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
manager.notify(R.string.app_name, notification);
{
// Wake Android Device when notification received
PowerManager pm = (PowerManager) context
.getSystemService(Context.POWER_SERVICE);
@SuppressWarnings("deprecation")
final PowerManager.WakeLock mWakelock = pm.newWakeLock(
PowerManager.FULL_WAKE_LOCK
| PowerManager.ACQUIRE_CAUSES_WAKEUP, "GCM_PUSH");
mWakelock.acquire();
// Timer before putting Android Device to sleep mode.
Timer timer = new Timer();
TimerTask task = new TimerTask() {
public void run() {
mWakelock.release();
}
};
timer.schedule(task, 5000);
// }
}
}
@Override
protected void onError(Context arg0, String errorId) {
Log.e("testing", "onError: errorId=" + errorId);
}
}
class updateId extends AsyncTask<String, Void, Void> {
Context context;
public updateId(Context c) {
context = c;
}
@Override
protected Void doInBackground(String... params) {
try {
JSONParser p = new JSONParser();
String response = p.getJSONFromUrl(params[0]);
Log.e("test", "response :- " + response);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
import com.google.android.gcm.GCMBaseIntentService;
public class GCMIntentService extends GCMBaseIntentService{
private static final String TAG = "GCMIntentService";
private Controller aController = null;
public GCMIntentService() {
// Call extended class Constructor GCMBaseIntentService
super(Config.GOOGLE_SENDER_ID);
}
@Override
protected void onError(Context arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
protected void onMessage(Context context, Intent intent) {
// TODO Auto-generated method stub
if(aController == null)
aController = (Controller) getApplicationContext();
String message = intent.getExtras().getString("message");
Log.i(TAG, "Received message");
aController.displayMessageOnScreen(context, message);
// notifies user
generateNotification(context, message);
}
@Override
protected void onRegistered(Context context, String registrationId) {
// TODO Auto-generated method stub
//Get Global Controller Class object (see application tag in AndroidManifest.xml)
if(aController == null)
aController = (Controller) getApplicationContext();
Log.i(TAG, "Device registered: regId = " + registrationId);
System.out.println(registrationId);
aController.displayMessageOnScreen(context,
"Your device registred with GCM");
Log.d("NAME", MainActivity.name);
aController.register(context, MainActivity.name,
MainActivity.email, registrationId);
}
@Override
protected void onUnregistered(Context arg0, String arg1) {
// TODO Auto-generated method stub
if(aController == null)
aController = (Controller) getApplicationContext();
Log.i(TAG, "Device unregistered");
aController.displayMessageOnScreen(arg0,
getString(R.string.gcm_unregistered));
aController.unregister(arg0, arg1);
}
/**
* Create a notification to inform the user that server has sent a message.
*/
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notifi = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, MainActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notifi.setLatestEventInfo(context, title, message, intent);
notifi.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notifi.defaults |= Notification.DEFAULT_SOUND;
// Vibrate if vibrate is enabled
notifi.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notifi);
}
}
公共类gcminentservice扩展了GCMBaseIntentService{
公共静态最终字符串发送者\u ID=“GCM ID”；
公共静态字符串消息；
字符串gcmRecData，状态；
组件名称cn；
int-AllTimeLength=0；
布尔更新列表=false；
公共GCMinentService（）{
超级（发送者身份证）；
}
@凌驾
受保护的void onRegistered（上下文、字符串注册ID）{
Log.e（“测试”，“onRegistered:registrationId=“+registrationId”）；
字符串urlToUpdateId；
urlToUpdateId=“输入更新令牌的url”；
新建updateId（context）.execute（urlToUpdateId）；
}
@凌驾
未注册受保护的void（上下文、字符串注册ID）{
}
@凌驾
受保护的void onMessage（最终上下文、意图数据）{
//来自PHP服务器的消息
gcmRecData=data.getStringExtra（“消息”）；
Log.e（“测试”，“消息：-”+gcmRecData）；
//试一试{
//JSONParser jParser=新的JSONParser（）；
//字符串json=jParser.getJSONFromUrl（gcmRecData）；
//JSONObject jobject=新的JSONObject（gcmRecData）；
消息=gcmRecData；
//BuildNotification（新意图（context，Home.class），context）；
//}catch（JSONException e）{
////TODO自动生成的捕捉块
//e.printStackTrace（）；
// }
BuildNotification（新意图（context，Foregound.class），context）；
//试一试
public class GCMIntentService extends GCMBaseIntentService {
public static final String SENDER_ID = "GCM ID";
public static String message;
String gcmRecData, status;
ComponentName cn;
int AllTimeLength = 0;
boolean updateList = false;
public GCMIntentService() {
super(SENDER_ID);
}
@Override
protected void onRegistered(Context context, String registrationId) {
Log.e("testing", "onRegistered: registrationId=" + registrationId);
String urlToUpdateId;
urlToUpdateId = "enter your url for update token";
new updateId(context).execute(urlToUpdateId);
}
@Override
protected void onUnregistered(Context context, String registrationId) {
}
@Override
protected void onMessage(final Context context, Intent data) {
// Message from PHP server
gcmRecData = data.getStringExtra("message");
Log.e("test", "message :- " + gcmRecData);
// try {
// JSONParser jParser = new JSONParser();
// String json = jParser.getJSONFromUrl(gcmRecData);
// JSONObject jobject = new JSONObject(gcmRecData);
message = gcmRecData;
// BuildNotification(new Intent(context, Home.class), context);
// } catch (JSONException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
BuildNotification(new Intent(context, Foregound.class), context);
// try {
// XMLParser xp = new XMLParser();
// Document doc = xp.getDomElement(gcmRecData);
// NodeList nl = doc.getElementsByTagName("response");
// for (int i = 0; i < nl.getLength(); i++) {
// Element e = (Element) nl.item(i);
// message = xp.getValue(e, "message");
// BuildNotification(new Intent(context, Home.class), context);
//
// }
// } catch (Exception e) {
// e.printStackTrace();
// }
}
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
public void BuildNotification(Intent it, Context context) {
Log.i("GCM INtent ", "" + "Build");
// if (context.getPackageName()
// .equalsIgnoreCase(
// ((ActivityManager) GCMIntentService.this
// .getSystemService(Context.ACTIVITY_SERVICE))
// .getRunningTasks(1).get(0).topActivity
// .getPackageName())) {
//
// } else {
PendingIntent pIntent = PendingIntent.getActivity(context, 0, it,
PendingIntent.FLAG_UPDATE_CURRENT);
Uri soundUri = RingtoneManager
.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Notification notification = new Notification.Builder(context)
.setSound(soundUri).setSmallIcon(R.drawable.appicon)
.setWhen(System.currentTimeMillis())
.setContentTitle("Byrchall High School")
.setContentText(message).setContentIntent(pIntent)
.getNotification();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
manager.notify(R.string.app_name, notification);
{
// Wake Android Device when notification received
PowerManager pm = (PowerManager) context
.getSystemService(Context.POWER_SERVICE);
@SuppressWarnings("deprecation")
final PowerManager.WakeLock mWakelock = pm.newWakeLock(
PowerManager.FULL_WAKE_LOCK
| PowerManager.ACQUIRE_CAUSES_WAKEUP, "GCM_PUSH");
mWakelock.acquire();
// Timer before putting Android Device to sleep mode.
Timer timer = new Timer();
TimerTask task = new TimerTask() {
public void run() {
mWakelock.release();
}
};
timer.schedule(task, 5000);
// }
}
}
@Override
protected void onError(Context arg0, String errorId) {
Log.e("testing", "onError: errorId=" + errorId);
}
}
class updateId extends AsyncTask<String, Void, Void> {
Context context;
public updateId(Context c) {
context = c;
}
@Override
protected Void doInBackground(String... params) {
try {
JSONParser p = new JSONParser();
String response = p.getJSONFromUrl(params[0]);
Log.e("test", "response :- " + response);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public class Controller extends Application{
private final int MAX_ATTEMPTS = 5;
private final int BACKOFF_MILLI_SECONDS = 2000;
private final Random random = new Random();
// Register this account with the server.
void register(final Context context, String name, String email, final String regId) {
Log.i(Config.TAG, "registering device (regId = " + regId + ")");
String serverUrl = Config.YOUR_SERVER_URL;
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
params.put("name", name);
params.put("email", email);
long backoff = BACKOFF_MILLI_SECONDS + random.nextInt(1000);
// Once GCM returns a registration id, we need to register on our server
// As the server might be down, we will retry it a couple
// times.
for (int i = 1; i <= MAX_ATTEMPTS; i++) {
Log.d(Config.TAG, "Attempt #" + i + " to register");
try {
//Send Broadcast to Show message on screen
displayMessageOnScreen(context, context.getString(
R.string.server_registered, i, MAX_ATTEMPTS));
// Post registration values to web server
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, true);
//Send Broadcast to Show message on screen
String message = context.getString(R.string.server_registered);
displayMessageOnScreen(context, message);
return;
} catch (IOException e) {
// Here we are simplifying and retrying on any error; in a real
// application, it should retry only on unrecoverable errors
// (like HTTP error code 503).
Log.e(Config.TAG, "Failed to register on attempt " + i + ":" + e);
if (i == MAX_ATTEMPTS) {
break;
}
try {
Log.d(Config.TAG, "Sleeping for " + backoff + " ms before retry");
Thread.sleep(backoff);
} catch (InterruptedException e1) {
// Activity finished before we complete - exit.
Log.d(Config.TAG, "Thread interrupted: abort remaining retries!");
Thread.currentThread().interrupt();
return;
}
// increase backoff exponentially
backoff *= 2;
}
}
String message = context.getString(R.string.server_register_error,
MAX_ATTEMPTS);
//Send Broadcast to Show message on screen
displayMessageOnScreen(context, message);
}
// Unregister this account/device pair within the server.
void unregister(final Context context, final String regId) {
Log.i(Config.TAG, "unregistering device (regId = " + regId + ")");
String serverUrl = Config.YOUR_SERVER_URL + "/unregister";
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
try {
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, false);
String message = context.getString(R.string.server_unregistered);
displayMessageOnScreen(context, message);
} catch (IOException e) {
// At this point the device is unregistered from GCM, but still
// registered in the our server.
// We could try to unregister again, but it is not necessary:
// if the server tries to send a message to the device, it will get
// a "NotRegistered" error message and should unregister the device.
String message = context.getString(R.string.server_unregister_error,
e.getMessage());
displayMessageOnScreen(context, message);
}
}
// Issue a POST request to the server.
private static void post(String endpoint, Map<String, String> params)
throws IOException {
URL url;
try {
url = new URL(endpoint);
} catch (MalformedURLException e) {
throw new IllegalArgumentException("invalid url: " + endpoint);
}
StringBuilder bodyBuilder = new StringBuilder();
Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
// constructs the POST body using the parameters
while (iterator.hasNext()) {
Entry<String, String> param = iterator.next();
bodyBuilder.append(param.getKey()).append('=')
.append(param.getValue());
if (iterator.hasNext()) {
bodyBuilder.append('&');
}
}
String body = bodyBuilder.toString();
Log.v(Config.TAG, "Posting '" + body + "' to " + url);
byte[] bytes = body.getBytes();
HttpURLConnection conn = null;
try {
Log.e("URL", "> " + url);
conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setFixedLengthStreamingMode(bytes.length);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
// post the request
OutputStream out = conn.getOutputStream();
out.write(bytes);
out.close();
// handle the response
int status = conn.getResponseCode();
// If response is not success
if (status != 200) {
throw new IOException("Post failed with error code " + status);
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
// Checking for all possible internet providers
public boolean isConnectingToInternet(){
ConnectivityManager connectivity =
(ConnectivityManager) getSystemService(
Context.CONNECTIVITY_SERVICE);
if (connectivity != null)
{
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
return true;
}
}
return false;
}
// Notifies UI to display a message.
void displayMessageOnScreen(Context context, String message) {
Intent intent = new Intent(Config.DISPLAY_MESSAGE_ACTION);
intent.putExtra(Config.EXTRA_MESSAGE, message);
// Send Broadcast to Broadcast receiver with message
context.sendBroadcast(intent);
}
//Function to display simple Alert Dialog
public void showAlertDialog(Context context, String title, String message,
Boolean status) {
AlertDialog alertDialog = new AlertDialog.Builder(context).create();
// Set Dialog Title
alertDialog.setTitle(title);
// Set Dialog Message
alertDialog.setMessage(message);
if(status != null)
// Set alert dialog icon
alertDialog.setIcon((status) ? R.drawable.ic_launcher : R.id.search_mag_icon);
// Set OK Button
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
// Show Alert Message
alertDialog.show();
}
private PowerManager.WakeLock wakeLock;
public void acquireWakeLock(Context context) {
if (wakeLock != null) wakeLock.release();
PowerManager pm = (PowerManager)
context.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK |
PowerManager.ACQUIRE_CAUSES_WAKEUP |
PowerManager.ON_AFTER_RELEASE, "WakeLock");
wakeLock.acquire();
}
public void releaseWakeLock() {
if (wakeLock != null) wakeLock.release(); wakeLock = null;
}
}
import com.google.android.gcm.GCMBaseIntentService;
public class GCMIntentService extends GCMBaseIntentService{
private static final String TAG = "GCMIntentService";
private Controller aController = null;
public GCMIntentService() {
// Call extended class Constructor GCMBaseIntentService
super(Config.GOOGLE_SENDER_ID);
}
@Override
protected void onError(Context arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
protected void onMessage(Context context, Intent intent) {
// TODO Auto-generated method stub
if(aController == null)
aController = (Controller) getApplicationContext();
String message = intent.getExtras().getString("message");
Log.i(TAG, "Received message");
aController.displayMessageOnScreen(context, message);
// notifies user
generateNotification(context, message);
}
@Override
protected void onRegistered(Context context, String registrationId) {
// TODO Auto-generated method stub
//Get Global Controller Class object (see application tag in AndroidManifest.xml)
if(aController == null)
aController = (Controller) getApplicationContext();
Log.i(TAG, "Device registered: regId = " + registrationId);
System.out.println(registrationId);
aController.displayMessageOnScreen(context,
"Your device registred with GCM");
Log.d("NAME", MainActivity.name);
aController.register(context, MainActivity.name,
MainActivity.email, registrationId);
}
@Override
protected void onUnregistered(Context arg0, String arg1) {
// TODO Auto-generated method stub
if(aController == null)
aController = (Controller) getApplicationContext();
Log.i(TAG, "Device unregistered");
aController.displayMessageOnScreen(arg0,
getString(R.string.gcm_unregistered));
aController.unregister(arg0, arg1);
}
/**
* Create a notification to inform the user that server has sent a message.
*/
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notifi = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, MainActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notifi.setLatestEventInfo(context, title, message, intent);
notifi.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notifi.defaults |= Notification.DEFAULT_SOUND;
// Vibrate if vibrate is enabled
notifi.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notifi);
}
}
public interface Config {
// CONSTANTS
static final String YOUR_SERVER_URL =
"https://yourserveraddress/gcm/register.php";
// Google project id
static final String GOOGLE_SENDER_ID = "123456789101"; //Your Project Number
/**
* Tag used on log messages.
*/
static final String TAG = "GCM Android Example";
static final String DISPLAY_MESSAGE_ACTION =
"com.yourpackagename.DISPLAY_MESSAGE";
static final String EXTRA_MESSAGE = "message";
}
These are two activity
RegisterActivity.java
public class RegisterActivty extends Activity {
EditText txtName;
EditText txtEmail;
// Register button
Button btnRegister;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
//Get Global Controller Class object (see application tag in AndroidManifest.xml)
final Controller aController = (Controller) getApplicationContext();
// Check if Internet Connection present
if (!aController.isConnectingToInternet()) {
// Internet Connection is not present
aController.showAlertDialog(RegisterActivty.this,
"Internet Connection Error",
"Please connect to working Internet connection", false);
// stop executing code by return
return;
}
// Check if GCM configuration is set
if (Config.YOUR_SERVER_URL == null
|| Config.GOOGLE_SENDER_ID == null
|| Config.YOUR_SERVER_URL.length() == 0
|| Config.GOOGLE_SENDER_ID.length() == 0) {
// GCM sernder id / server url is missing
aController.showAlertDialog(RegisterActivty.this, "Configuration Error!",
"Please set your Server URL and GCM Sender ID", false);
// stop executing code by return
return;
}
txtName = (EditText) findViewById(R.id.txtName);
txtEmail = (EditText) findViewById(R.id.txtEmail);
btnRegister = (Button) findViewById(R.id.btnRegister);
// Click event on Register button
btnRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Get data from EditText
String name = txtName.getText().toString();
String email = txtEmail.getText().toString();
// Check if user filled the form
if(name.trim().length() > 0 && email.trim().length() > 0){
// Launch Main Activity
Intent i = new Intent(getApplicationContext(), MainActivity.class);
// Registering user on our server
// Sending registraiton details to MainActivity
i.putExtra("name", name);
i.putExtra("email", email);
startActivity(i);
finish();
}
}
});
}
}
MainActivity.java
import com.google.android.gcm.GCMRegistrar;
public class MainActivity extends ActionBarActivity {
TextView lblMessage;
Controller aController;
// Asyntask
AsyncTask<Void, Void, Void> mRegisterTask;
public static String name;
public static String email;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Get Global Controller Class object (see application tag in AndroidManifest.xml)
aController = (Controller) getApplicationContext();
// Check if Internet present
if (!aController.isConnectingToInternet()) {
// Internet Connection is not present
aController.showAlertDialog(MainActivity.this,
"Internet Connection Error",
"Please connect to Internet connection", false);
// stop executing code by return
return;
}
// Getting name, email from intent
Intent i = getIntent();
name = i.getStringExtra("name");
email = i.getStringExtra("email");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest permissions was properly set
GCMRegistrar.checkManifest(this);
lblMessage = (TextView) findViewById(R.id.lblMessage);
// Register custom Broadcast receiver to show messages on activity
registerReceiver(mHandleMessageReceiver, new IntentFilter(
Config.DISPLAY_MESSAGE_ACTION));
// Get GCM registration id
final String regId = GCMRegistrar.getRegistrationId(this);
// Check if regid already presents
if (regId.equals("")) {
// Register with GCM
GCMRegistrar.register(this, Config.GOOGLE_SENDER_ID);
} else {
// Device is already registered on GCM Server
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
Toast.makeText(getApplicationContext(),
"Already registered with GCM Server",
Toast.LENGTH_LONG).
show();
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
// Register on our server
// On server creates a new user
aController.register(context, name, email, regId);
return null;
}
@Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
// execute AsyncTask
mRegisterTask.execute(null, null, null);
}
}
}
// Create a broadcast receiver to get message and show on screen
private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String newMessage = intent.getExtras().getString(Config.EXTRA_MESSAGE);
// Waking up mobile if it is sleeping
aController.acquireWakeLock(getApplicationContext());
// Display message on the screen
lblMessage.append(newMessage + "");
Toast.makeText(getApplicationContext(),
"Got Message: " + newMessage,
Toast.LENGTH_LONG).show();
// Releasing wake lock
aController.releaseWakeLock();
}
};
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.yourpackagename"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<permission
android:name="com.example.yourpackagename.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.yourpackagename.permission.C2D_MESSAGE" />
<!-- This app has permission to register and receive data message. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:name="com.example.yourpackagename.Controller"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
</activity>
<activity android:name="RegisterActivty">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name="com.google.android.gcm.GCMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<!-- Receives the actual messages. -->
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<!-- Receives the registration id. -->
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.yourpackagename" />
</intent-filter>
</receiver>
<service android:name="com.yourpackagename.GCMIntentService" />
</application>
</manifest>