我尝试从服务器向手机上的应用发送通知，结果“成功”，但我的手机没有收到任何消息，我正在使用 Google 云消息
public class GCMIntentService extends GcmListenerService{
private static final String TAG = "GCMIntentService";
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
Log.d(TAG, "from:" + from);
Log.d(TAG, "message:" + message);
sendNotification(message);
}
private void sendNotification(String message){
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Uri defaultSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
if(Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP){
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle("New Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSound)
.setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, notificationBuilder.build());
}
}
}
AndroidManifest
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<permission android:name="com.example.abdul_majeed.alruthea.permission.C2D_MESSAGE"
android:protectionLevel="签名"/>
<uses-permission android:name="com.example.abdul_majeed.alruthea.permission.C2D_MESSAGE" />
....
<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" />
<category android:name="com.example.abdul_majeed.alruthea" />
</intent-filter>
</receiver>
<service
android:name=".GCMIntentService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
====================================================
最佳答案
问题“...没有收到任何东西...”可能是由代码引起的 如下:
if(Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP){... ...
这意味着如果你的设备低于LOLLIPOP，那么你可以接收任何东西， 如果您的设备高于LOLLIPOP，那么您将无法接收任何内容。请检查您所使用手机的Android版本。
关于java - 获取 "success"而没有收到任何 GCM 消息，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35000568/