I have developed my application server that sends the gcm message to the gcm server using http post. When i run my server it gives a response code of 200 that means that the message has been sent successfully by gcm server, but the notification is not displayed on the android device.
I get the registration id of the device successfully and also it is stored in mysql database using httppost correctly.
Here is my C2DMMessageReceiver:
它具有onReceive方法，可识别收到的消息。
package com.example.cloud2devicemessaging;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
public class C2DMMessageReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
String action = intent.getAction();
Log.w("C2DM", "Message Receiver called");
if ("com.google.android.c2dm.intent.RECEIVE".equals(action)) {
Log.w("C2DM", "Received message");
ComponentName comp = new ComponentName(context.getPackageName(),
GCMIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
}
}
}
GCMIntentService.java that handles the message received:
package com.example.cloud2devicemessaging;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.google.android.gcm.GCMBaseIntentService;
public class GCMIntentService extends GCMBaseIntentService {
protected GCMIntentService(String senderId) {
super("1087507874278");
// TODO Auto-generated constructor stub
}
@Override
protected void onError(Context arg0, String arg1) {
// TODO Auto-generated method stub
Log.d("Error", arg1);
}
@Override
protected void onMessage(Context context, Intent intent) {
// TODO Auto-generated method stub
int icon = R.drawable.eplogo;
long when = System.currentTimeMillis();
String message=intent.getExtras().toString();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = "E-PASS APPLICATION";
Intent notificationIntent = new Intent(context, resetpass.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent in =
PendingIntent.getActivity(context,(int) (Math.random() * 100), notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, in);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
}
@Override
protected void onRegistered(Context arg0, String arg1) {
// TODO Auto-generated method stub
Log.i("Mobile device registered","Registration successful");
}
@Override
protected void onUnregistered(Context arg0, String arg1) {
// TODO Auto-generated method stub
Log.i("Unregister","Mobile device unregistered");
}
}
This is the code of my application server that sends message using httppost:
package com.example.gcmserver;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.AuthState;
import org.apache.http.auth.Credentials;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HttpContext;
public class Server {
public static void main(String[] args) throws IOException {
String url = "https://android.googleapis.com/gcm/send";
DefaultHttpClient client = new DefaultHttpClient();
client.getCredentialsProvider().setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("username", "password"));
client.addRequestInterceptor(new HttpRequestInterceptor() {
@Override
public void process(HttpRequest arg0, HttpContext context)
throws HttpException, IOException {
// TODO Auto-generated method stub
AuthState state = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE);
if (state.getAuthScheme() == null) {
BasicScheme scheme = new BasicScheme();
CredentialsProvider credentialsProvider = (CredentialsProvider) context.getAttribute(ClientContext.CREDS_PROVIDER);
Credentials credentials = credentialsProvider.getCredentials(AuthScope.ANY);
if (credentials == null) {
throw new HttpException();
}
state.setAuthScope(AuthScope.ANY);
state.setAuthScheme(scheme);
state.setCredentials(credentials);
}}
}, 0);
HttpPost httppost = new HttpPost("https://android.googleapis.com/gcm/send");
List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
urlParameters.add(new BasicNameValuePair("data.registration id","APA91bGChJVdx2L1AUIJEVIBBVEkxEAk6zixj5V-L--fDGXudvrtl5gSQDgAP4iUJoMRq57sLSpGtsSQ5gnprX4McOPq7WxglKeQyTmaysVb0r-adOZ4tTjWG2MYwVEayFKy9Rwf1mloVt2jb-_izUdN-SfKvlpUpEYXNNT1987tYASKCcam16g"));
urlParameters.add(new BasicNameValuePair("data.title", "e-pass application"));
urlParameters.add(new BasicNameValuePair("data.message", "Your code is 13133"));
httppost.setHeader("Authorization",
"key=AIzaSyDANlJHGPmzo1so_yyqkYZO7LSrQpnR7mk");
httppost.setHeader("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
httppost.setEntity(new UrlEncodedFormEntity(urlParameters, "UTF-8"));
HttpResponse response = client.execute(httppost);
System.out.println("Response Code : "
+ response.getStatusLine().getStatusCode());
BufferedReader rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
result.append(line);
}
}
}
And finally this is my manifest file in which i have added all the necessary permissions:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.cloud2devicemessaging"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<permission
android:name="com.example.cloud2devicemessaging.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.SEND" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="com.example.cloud2devicemessaging.permission.C2D_MESSAGE"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".C2DMRegistrationReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.cloud2devicemessaging" />
</intent-filter>
</receiver>
<activity android:name="resetpass"></activity>
<activity android:name="SendingMessage"></activity>
<receiver
android:name="com.google.android.gcm.GCMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter >
<action android:name="com.google.android.c2dm.intent.RECEIVE" >
</action>
<category android:name="om.example.cloud2devicemessaging" />
</intent-filter>
</receiver>
<service android:name=".GCMIntentService" />
</application>
</manifest>
Thanks in advance for the help
我一直试图解决错误，因为一周但无法解决。在google开发者控制台中，来自应用程序的请求数仍为0。
答案 0 :(得分：0)
代码看起来不对，您应该遵循本指南：
https://developer.android.com/google/gcm/client.html
我认为你的GcmIntentReceiver错了，例如：
public class GcmIntentService extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
public GcmIntentService() {
super("GcmIntentService");
}
@Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
// The getMessageType() intent parameter must be the intent you received
// in your BroadcastReceiver.
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) { // has effect of unparcelling Bundle
/*
* Filter messages based on message type. Since it is likely that GCM
* will be extended in the future with new message types, just ignore
* any message types you're not interested in, or that you don't
* recognize.
*/
if (GoogleCloudMessaging.
MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_DELETED.equals(messageType)) {
sendNotification("Deleted messages on server: " +
extras.toString());
// If it's a regular GCM message, do some work.
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_MESSAGE.equals(messageType)) {
// This loop represents the service doing some work.
for (int i=0; i<5; i++) {
Log.i(TAG, "Working... " + (i+1)
+ "/5 @ " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
// Post notification of received message.
sendNotification("Received: " + extras.toString());
Log.i(TAG, "Received: " + extras.toString());
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, DemoActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_gcm)
.setContentTitle("GCM Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
如果收到GCMmessage，您应该在logcat中看到trace。如果这不起作用，也许是它的APiKey问题，我在谷歌控制台Api中创建密钥时遇到了很多问题。在控制台中，保留ip为空的字段。