将手机升级到8.1 Developer Preview之后，我的后台服务不再正常启动。我仍然看到一个区别，在android oreo中我没有看到我的自定义前台通知（我只看到“应用程序在后台运行”通知）。它适用于android <26和android 26（Oreo）。我也必须在那里调整任何内容吗？ Tks Bro！
我的服务：
public class ForegroundService extends Service {
private static final String LOG_TAG = "ForegroundService";
public static boolean IS_SERVICE_RUNNING = false;
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null && intent.getAction().equals(Constants.ACTION.STARTFOREGROUND_ACTION)) {
showNotification();
} else if (intent != null && intent.getAction().equals(Constants.ACTION.STOPFOREGROUND_ACTION)) {
MainActivity.exoPlayer.setPlayWhenReady(false);
stopForeground(true);
stopSelf();
}
return START_STICKY;
}
private void showNotification() {
Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setAction(Constants.ACTION.MAIN_ACTION);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
notificationIntent, 0);
Intent playIntent = new Intent(this, ForegroundService.class);
playIntent.setAction(Constants.ACTION.STOPFOREGROUND_ACTION);
PendingIntent pplayIntent = PendingIntent.getService(this, 0,
playIntent, 0);
Bitmap icon = BitmapFactory.decodeResource(getResources(),
R.drawable.radio);
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle("Background")
.setContentText("is Playing...")
.setSmallIcon(R.drawable.background)
.setLargeIcon(Bitmap.createScaledBitmap(icon, 128, 128, false))
.setContentIntent(pendingIntent)
.setOngoing(true)
.addAction(android.R.drawable.ic_delete, "Turn Off",
pplayIntent).build();
startForeground(Constants.NOTIFICATION_ID.FOREGROUND_SERVICE,
notification);
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
// Used only in case if services are bound (Bound Services).
return null;
}
}
我的常数：
public class Constants {
public interface ACTION {
public static String MAIN_ACTION = "com.marothiatechs.foregroundservice.action.main";
public static String PLAY_ACTION = "com.marothiatechs.foregroundservice.action.play";
public static String STARTFOREGROUND_ACTION = "com.marothiatechs.foregroundservice.action.startforeground";
public static String STOPFOREGROUND_ACTION = "com.marothiatechs.foregroundservice.action.stopforeground";
}
public interface NOTIFICATION_ID {
public static int FOREGROUND_SERVICE = 101;
}
}
答案 0 :(得分：1)
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFMService";
String CHANNEL_ID = "com.app.app";
NotificationChannel mChannel;
private NotificationManager mManager;
private String title, msg, actionCode;
private int badge = 0;
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
// Handle data payload of FCM messages.
Log.d(TAG, "FCM Message Id: " + remoteMessage.getMessageId());
Log.d(TAG, "FCM Notification Message: " + remoteMessage.getData() + "...." +
remoteMessage.getFrom());
if (remoteMessage.getData() != null) {
Map<String, String> params = remoteMessage.getData();
JSONObject object = new JSONObject(params);
//Log.e("JSON_OBJECT", object.toString());
title = object.optString("title","");
actionCode = object.optString("action_code", "");
msg = object.optString("body", "");
if (remoteMessage.getData().containsKey("badge")) {
badge = Integer.parseInt(remoteMessage.getData().get("badge"));
//Log.d("notificationNUmber", ":" + badge);
setBadge(getApplicationContext(), badge);
Prefs.putBoolean(Constant.HAS_BADGE,true);
}
if (!(title.equals("") && msg.equals("") && actionCode.equals(""))) {
createNotification(actionCode, msg, title);
}
else {
//Log.e("Notification", "Invalid Data");
}
}
}
public void createNotification(String action_code, String msg, String title) {
Intent intent = null;
intent = new Intent(this, HomeActivity.class);
intent.putExtra(Constant.ACTION_CODE, action_code);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel androidChannel = new NotificationChannel(CHANNEL_ID,
title, NotificationManager.IMPORTANCE_DEFAULT);
// Sets whether notifications posted to this channel should display notification lights
androidChannel.enableLights(true);
// Sets whether notification posted to this channel should vibrate.
androidChannel.enableVibration(true);
// Sets the notification light color for notifications posted to this channel
androidChannel.setLightColor(Color.GREEN);
// Sets whether notifications posted to this channel appear on the lockscreen or not
androidChannel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
getManager().createNotificationChannel(androidChannel);
Notification.Builder nb = new Notification.Builder(getApplicationContext(), CHANNEL_ID)
.setContentTitle(title)
.setContentText(msg)
.setTicker(title)
.setShowWhen(true)
.setSmallIcon(R.mipmap.ic_small_notification)
.setLargeIcon(BitmapFactory.decodeResource(this.getResources(),
R.mipmap.ic_launcher_round))
.setAutoCancel(true)
.setContentIntent(contentIntent);
getManager().notify(101, nb.build());
} else {
try {
@SuppressLint({"NewApi", "LocalSuppress"}) android.support.v4.app.NotificationCompat.Builder notificationBuilder = new android.support.v4.app.NotificationCompat.Builder(this).setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
.setSmallIcon(R.mipmap.ic_small_notification)
.setLargeIcon(BitmapFactory.decodeResource(this.getResources(),
R.mipmap.ic_launcher_round))
.setContentTitle(title)
.setTicker(title)
.setContentText(msg)
.setShowWhen(true)
.setContentIntent(contentIntent)
.setLights(0xFF760193, 300, 1000)
.setAutoCancel(true).setVibrate(new long[]{200, 400});
/*.setSound(Uri.parse("android.resource://"
+ getApplicationContext().getPackageName() + "/" + R.raw.tone));*/
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify((int) System.currentTimeMillis() /* ID of notification */, notificationBuilder.build());
} catch (SecurityException se) {
se.printStackTrace();
}
}
}
private NotificationManager getManager() {
if (mManager == null) {
mManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
}
return mManager;
}
}