我已使用Firebase消息传递服务，并且已生成通知。当我收到多个通知时，当我点击一个通知时，所有其他通知都将被删除。我不想删除其他未使用的通知。在这里，我如何生成通知，
public class MyNotificationManager {
private Context mCtx;
private static int notification_count=0;
private static MyNotificationManager mInstance;
public static final String NOTIFICATION_CHANNEL_ID = "10001";
private NotificationManager mNotificationManager;
private NotificationCompat.Builder mBuilder;
private MyNotificationManager(Context context) {
mCtx = context;
}
public static synchronized MyNotificationManager getInstance(Context context) {
if (mInstance == null) {
mInstance = new MyNotificationManager(context);
}
return mInstance;
}
public void createNotification(String title, String message, int contentId)
{
/**Creates an explicit intent for an Activity in your app**/
Intent resultIntent = new Intent(mCtx,HomeActivity.class);
resultIntent.putExtra("contentId", "" + contentId);
resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
TaskStackBuilder mStackBuilder = TaskStackBuilder.create(mCtx);
mStackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
mStackBuilder.getPendingIntent(contentId, PendingIntent.FLAG_ONE_SHOT);
mBuilder = new NotificationCompat.Builder(mCtx);
mBuilder.setSmallIcon(R.mipmap.ic_launcher);
mBuilder.setContentTitle(title)
.setContentText(message)
.setAutoCancel(true)
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(resultPendingIntent);
mNotificationManager = (NotificationManager) mCtx.getSystemService(Context.NOTIFICATION_SERVICE);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
{
int importance = NotificationManager.IMPORTANCE_DEFAULT;
NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID,
"DEFAULT_CHANNEL", importance);
notificationChannel.enableLights(true);
notificationChannel.setLightColor(Color.RED);
notificationChannel.enableVibration(true);
notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
assert mNotificationManager != null;
mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
mNotificationManager.createNotificationChannel(notificationChannel);
}
assert mNotificationManager != null;
mNotificationManager.notify(notification_count++ /* Request Code */, mBuilder.build());
}
}
答案 0 :(得分：0)
尝试此操作将为您提供帮助：-
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = MyFirebaseMessagingService.class.getSimpleName();
NotificationCompat.Builder builder;
String CHANNEL_ID = "my_channel_01";
PendingIntent pendingIntent;
private NotificationUtils notificationUtils;
private NotificationManager mNotificationManager;
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.e(TAG, "From: " + remoteMessage.getFrom());
Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
if (remoteMessage.getNotification() == null)
return;
// Check if message contains a notification payload.
if(remoteMessage.getNotification() != null) {
handleNotification(remoteMessage, remoteMessage.getNotification().getBody(), remoteMessage.getNotification().getTitle());
}
}
private void handleNotification(RemoteMessage remoteMessage, String body, String title) {
if (mNotificationManager == null) {
mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
}
boolean isNotificationSound = true;
//TODO: update count if app is open.
if (!NotificationUtils.isAppIsInBackground(this)) {
if (isNotificationSound) {
try {
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
r.play();
} catch (Exception e) {
}
}
covertRemoteToJson(remoteMessage, body, title);
}else {
covertRemoteToJson(remoteMessage, body, title);
}
}
private void covertRemoteToJson(RemoteMessage remoteMessage, String body, String title) {
if (remoteMessage.getData().size() > 0) {
Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
try {
//Map<String, String> params = remoteMessage.getData();
if (!StringUtils.isNullOrEmpty(remoteMessage.getData().toString())) {
JSONObject json = new JSONObject(remoteMessage.getData().toString());
handleDataMessage(json, body, title);
}
} catch (Exception e) {
e.printStackTrace();
e.getMessage();
Log.e(TAG, "Exception: " + e.getMessage());
}
}
}
private void handleDataMessage(JSONObject json, String body, String title) {
int requestID = (int) System.currentTimeMillis();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
int importance = NotificationManager.IMPORTANCE_HIGH;
assert mNotificationManager != null;
NotificationChannel mChannel = mNotificationManager.getNotificationChannel(CHANNEL_ID);
if (mChannel == null) {
mChannel = new NotificationChannel(CHANNEL_ID, title, importance);
mChannel.enableVibration(true);
mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
mNotificationManager.createNotificationChannel(mChannel);
}
builder = new NotificationCompat.Builder(this);
Intent intent = new Intent(this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra(AppConstants.EXTRAS.IS_FROM_NOTIFICATION, true);
intent.putExtra(AppConstants.EXTRAS.NOTIFICATION_LANDING_DATA, json.toString());
pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
builder.setContentTitle(title) // required
.setSmallIcon(getNotificationIcon()) // required
.setContentText(body).setWhen(System.currentTimeMillis()) // required
.setDefaults(Notification.DEFAULT_ALL)
.setAutoCancel(true)
.setContentIntent(pendingIntent)
.setChannelId(CHANNEL_ID)
.setVibrate(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
} else {
builder = new NotificationCompat.Builder(this);
Intent intent = new Intent(this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra(AppConstants.EXTRAS.IS_FROM_NOTIFICATION, true);
intent.putExtra(AppConstants.EXTRAS.NOTIFICATION_LANDING_DATA, json.toString());
pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
builder.setContentTitle(title) // required
.setSmallIcon(getNotificationIcon()) // required
.setContentText(body).setWhen(System.currentTimeMillis()) // required
.setDefaults(Notification.DEFAULT_ALL)
.setAutoCancel(true)
.setChannelId(CHANNEL_ID)
.setContentIntent(pendingIntent)
.setVibrate(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400})
.setPriority(Notification.PRIORITY_HIGH);
}
Notification notification = builder.build();
mNotificationManager.notify(requestID, notification);
}
private static int getNotificationIcon() {
return R.mipmap.ic_launcher;
}
}