我正在使用GCM实现推送通知。我成功获得令牌和实例ID，服务器也在发送通知时返回成功，但我无法在手机上显示通知。请帮忙!!!
以下是我的代码
Android Manifest：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.appname"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<!-- [START gcm_permission] -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- [END gcm_permission] -->
<permission android:name="com.example.appname.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.appname.permission.C2D_MESSAGE" />
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true" />
<application
android:allowBackup="true"
android:icon="@drawable/appicon"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat.NoActionBar">
<activity
android:name=".Outlet.Activities.SplashActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="gcm_test_app_notification_click_action"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity
android:name=".Outlet.Activities.LoginActivity"
android:screenOrientation="portrait" />
<service
android:name="com.paypal.android.sdk.payments.PayPalService"
android:exported="false" />
<activity android:name="com.paypal.android.sdk.payments.PaymentActivity" />
<activity android:name="com.paypal.android.sdk.payments.LoginActivity" />
<activity android:name="com.paypal.android.sdk.payments.PaymentMethodActivity" />
<activity android:name="com.paypal.android.sdk.payments.PaymentConfirmActivity" />
<activity
android:name="io.card.payment.CardIOActivity"
android:configChanges="keyboardHidden|orientation" />
<activity android:name="io.card.payment.DataEntryActivity" />
<!-- [START gcm_receiver] -->
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.appname" />
<!--<category android:name="gcm.play.android.samples.com.gcmquickstart" />-->
</intent-filter>
</receiver>
<!-- [END gcm_receiver] -->
<!-- [START gcm_listener] -->
<service
android:name="com.example.appname.CommonFiles.Push.MyGcmListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<!-- [END gcm_listener] -->
<!-- [START instanceId_listener] -->
<service
android:name="com.example.appname.CommonFiles.Push.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID"/>
</intent-filter>
</service>
<!-- [END instanceId_listener] -->
<service
android:name="com.example.appname.CommonFiles.Push.RegistrationIntentService"
android:exported="false">
</service>
</application>
</manifest>
GCMIntentservice类： -
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
public static final int MESSAGE_NOTIFICATION_ID = 435345;
/**
* Called when message is received.
*
* @param from SenderID of the sender.
* @param data Data bundle containing message data as key/value pairs.
* For Set of keys use data.keySet().
*/
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
Log.d(TAG, "From: " + from);
Log.d(TAG, "Message: " + message);
if (from.startsWith("/topics/")) {
// message received from some topic.
} else {
// normal downstream message.
}
// [START_EXCLUDE]
/**
* Production applications would usually process the message here.
* Eg: - Syncing with server.
* - Store message in local database.
* - Update UI.
*/
/**
* In some cases it may be useful to show a notification indicating to the user
* that a message was received.
*/
sendNotification(message);
// [END_EXCLUDE]
}
// [END receive_message]
/**
* Create and show a simple notification containing the received GCM message.
*
* @param message GCM message received.
*/
private void sendNotification(String message) {
Intent intent = new Intent(this, LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("GCM Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(MESSAGE_NOTIFICATION_ID /* ID of notification */, notificationBuilder.build());
}
}
RegisterIntentService： -
public class RegistrationIntentService extends IntentService {
private static final String TAG = "RegIntentService";
private static final String[] TOPICS = {"global"};
UserSession userSession;
public RegistrationIntentService() {
super(TAG);
}
@Override
protected void onHandleIntent(Intent intent) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
userSession=new UserSession(this);
try {
// [START register_for_gcm]
// Initially this call goes out to the network to retrieve the token, subsequent calls
// are local.
// [START get_token]
InstanceID instanceID = InstanceID.getInstance(this);
// R.string.gcm_defaultSenderId (the Sender ID) is typically derived from google-services.json.
// See https://developers.google.com/cloud-messaging/android/start for details on this file.
String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId),
GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
userSession.saveGCMToken(token);
// [END get_token]
Log.i(TAG, "GCM Registration Token: " + token);
// TODO: Implement this method to send any registration to your app's servers.
sendRegistrationToServer(token);
// Subscribe to topic channels
subscribeTopics(token);
// You should store a boolean that indicates whether the generated token has been
// sent to your server. If the boolean is false, send the token to your server,
// otherwise your server should have already received the token.
sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, true).apply();
// [END register_for_gcm]
} catch (Exception e) {
Log.d(TAG, "Failed to complete token refresh", e);
// If an exception happens while fetching the new token or updating our registration data
// on a third-party server, this ensures that we'll attempt the update at a later time.
sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false).apply();
}
// Notify UI that registration has completed, so the progress indicator can be hidden.
Intent registrationComplete = new Intent(QuickstartPreferences.REGISTRATION_COMPLETE);
LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete);
}
/**
* Persist registration to third-party servers.
*
* Modify this method to associate the user's GCM registration token with any server-side account
* maintained by your application.
*
* @param token The new token.
*/
private void sendRegistrationToServer(String token) {
// Add custom implementation, as needed.
GCMHelper gcmHelper = new GCMHelper(this);
gcmHelper.checkRegisterDevice();
}
/**
* Subscribe to any GCM topics of interest, as defined by the TOPICS constant.
*
* @param token GCM token
* @throws IOException if unable to reach the GCM PubSub service
*/
// [START subscribe_topics]
private void subscribeTopics(String token) throws IOException {
GcmPubSub pubSub = GcmPubSub.getInstance(this);
for (String topic : TOPICS) {
pubSub.subscribe(token, "/topics/" + topic, null);
}
}
// [END subscribe_topics]
}
答案 0 :(得分：1)
你已经在清单中写了
<permission android:name="com.example.gcm.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.gcm.permission.C2D_MESSAGE" />
其中com.example是您的包名。
但您的应用程序包名称是com.example.appname
所以，你必须写
<permission android:name="com.example.appname.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.appname.permission.C2D_MESSAGE" />
答案 1 :(得分：1)
如下所示更改权限并检查
<!-- Creates a custom permission so only this app can receive its messages. -->
<permission android:name="YOUR_PACKAGE_NAME.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="YOUR_PACKAGE_NAME.permission.C2D_MESSAGE" />
<!-- This app has permission to register and receive data message. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
答案 2 :(得分：1)
我有解决问题的方法。
首先，在我的应用中更正了这些权限，尽管这些权限不会对新版本产生问题
<permission
android:name="com.example.appname.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.appname.permission.C2D_MESSAGE" />
其次，问题是wifi隐私。当我使用我的公司wifi时，我不能在移动设备上接收消息，因为它们被阻止了GCM服务器端口。
您可以使用以下链接有效实施GCM：
https://developers.google.com/cloud-messaging/ https://github.com/codepath/android_guides/wiki/Google-Cloud-Messaging
快乐编码：）