Question

仅在单行中获取推送通知的message，而我期望multiple lines中BigPictureStyle和 Base （两种通知方式）。

请参阅随附的屏幕截图，而在此图片中，我们只显示"Hello from Firebase Cloud Messaging"，因此这适用于单行本身。

但事实是，如果我正在尝试显示“来自Firebase云消息传递的Hello，再次来自Firebase云消息传递的Hello”，即使我在single line only中使用，如 ...

以下是我正在使用的代码所需的part：

NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setLargeIcon(image)/*Notification icon image*/
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(messageTitle)
                .setContentText(messageBody)
                .setStyle(new NotificationCompat.BigPictureStyle()
                        .bigPicture(image)
                        .setBigContentTitle(messageTitle)
                        .setSummaryText(Html.fromHtml(messageBody)
                        .toString()))/*Notification with Image*/
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);

注意：同样的问题，无论何时我都面临着发送没有大图像的消息（基本/简单推送通知）

请参阅此屏幕截图：

那么，唯一关注是如何在通知中显示多行消息？。

Answer 1

你几乎拥有它，你只需要设置bigText属性。

    NotificationCompat.Builder notificationBuilder =
            new NotificationCompat.Builder(this)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setAutoCancel(true);

    NotificationCompat.BigTextStyle bigTextStyle = new NotificationCompat.BigTextStyle();
    bigTextStyle.setBigContentTitle("Title");
    bigTextStyle.bigText("Lorem ipsum dolor sit amet, consectetur adipiscing elit," +
            " sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. " +
            "Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris " +
            "nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in.");

    notificationBuilder.setStyle(bigTextStyle);

    NotificationManager mNotifyMgr = (NotificationManager)
            getSystemService(NOTIFICATION_SERVICE);
    mNotifyMgr.notify(1, notificationBuilder.build());

Answer 2

您应该使用自己的布局：

Builder builder = new Builder(context);
builder.setSmallIcon(R.drawable.star_white)
builder.setAutoCancel(true)
builder.setContentIntent(pendingIntent);
builder.setPriority(NotificationCompat.PRIORITY_MAX);

RemoteViews remoteViewsBig = new RemoteViews(context.getPackageName(), R.layout.notification_big);
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.notification_small);
remoteViewsBig.setImageViewBitmap(R.id.banner, bitmap);

remoteViewsBig.setTextViewText(R.id.button, data.getButtonText());
remoteViews.setTextViewText(R.id.button, data.getButtonText());

remoteViewsBig.setTextViewText(R.id.text_title, data.getTitle());
remoteViews.setTextViewText(R.id.text_title, data.getTitle());

remoteViewsBig.setTextViewText(R.id.text_content, data.getContent());
remoteViews.setTextViewText(R.id.text_content, data.getContent());

builder.setCustomContentView(remoteViews);
builder.setCustomBigContentView(remoteViewsBig);

NotificationManager notificationManager =
            (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(notificationId, builder.build());

和xml文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:background="@color/custom_blue_gray_800"
              android:orientation="horizontal"
    >

    <ImageView
        android:layout_width="44dp"
        android:layout_height="44dp"
        android:layout_gravity="center"
        android:src="@mipmap/ic_launcher"
        />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="12dp"
        android:layout_marginRight="12dp"
        android:layout_weight="1"
        android:gravity="center_vertical"
        android:orientation="vertical"
        android:padding="8dp"
        >

        <TextView
            android:id="@+id/text_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/white"
            android:textSize="16sp"
            tools:text="Title"
            />

        <TextView
            android:id="@+id/text_content"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/darker_gray"
            android:textSize="14sp"
            tools:text="text\ntext\ntext"
            />

    </LinearLayout >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="36dp"
        android:layout_gravity="center_vertical"
        android:background="@drawable/button_main"
        android:text="Click"
        android:textColor="@android:color/white"
        android:textSize="12sp"
        />

</LinearLayout >

和

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:background="@color/custom_blue_gray_800"
              android:orientation="vertical"
              android:paddingLeft="12dp"
              android:paddingRight="12dp"
              android:paddingBottom="12dp"
    >

    <include layout="@layout/notification_small" />

    <ImageView
        android:id="@+id/banner"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"
        android:scaleType="centerCrop"
        />


</LinearLayout >

Answer 3

试试这个： -

NotificationCompat.Builder builder = new NotificationCompat.Builder(
        context);
Notification notification = builder.setContentIntent(contentIntent)
        .setSmallIcon(icon).setTicker(appname).setWhen(0)
        .setAutoCancel(true).setContentTitle(appname)
        .setStyle(new NotificationCompat.BigTextStyle().bigText(message))
        .setContentText(message).build();

notificationManager.notify(0, notification);

Answer 4

您可以使用@Dus回答显示多行...但是使用bigPictureSyle它将在setSummaryText方法中始终具有单行，其他选项是创建RemoteView并根据您的要求实现UI设计

RemoteView参考this

Answer 5

我希望这适合你。检查一下：

   NotificationCompat.Builder builder = new NotificationCompat.Builder(
            context);
    Notification notification = builder.setContentIntent(contentIntent)
            .setSmallIcon(icon).setTicker(appname).setWhen(0)
            .setAutoCancel(true).setContentTitle(appname)
            .setStyle(new NotificationCompat.BigTextStyle().bigText(message))
            .setContentText(message).build();

    notificationManager.notify(0, notification);

请参阅此链接：Display Notification in multiline

谢谢...

Answer 6

这就是我设法在通知中显示大图像和一些多行文本的方法。这是我项目中的工作代码。

fcm中有两种fcm消息。 Display Messages和Data Messages。我使用Data Messages来处理前台和后台的fcm通知。

  /**
 * Created by Mohammed Farhan on 01-08-2017.
 */

public class MyFirebaseMessagingService extends FirebaseMessagingService
{

    private static final String TAG = "MyFirebaseMsgService";
    private AppAuth auth;

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage)
    {
    }




        /*To check if remoteMessage is empty, if not empty then read the id from "title" field*/
        if (remoteMessage.getData().size() > 0)
        {
            Map<String, String> data = remoteMessage.getData();
            String title = data.get("title");
            sendNotification(title);
            Log.d(TAG, title.toString());
        }

    }


    private void sendNotification(String title)
    {


        final String id = title;

        /* Here DataFromServer is custom method, used to sync data from my server. It has interface method to listen it when data sync and adding it to local sql completes*/
        DataFromServer dataFromServer = new DataFromServer(this);
        dataFromServer.setDataLoadCompleteListener(new DataLoadCompleteListener()
        {
            @Override
            public void dataLoadComplete()
            {

            /*AppNotificationDAO is a class which  has many DAO(Data Access Object) method. I have used DAO to make ease in saving,querying data from local sql*/
                AppNotificationDAO appNotificationDAO = new AppNotificationDAO(MyFirebaseMessagingService.this);

                /*getAppNotificationByID is DAO method which does server communication and fetch data from it based on Id(Here its notificationId)*/
                AppNotification appNotification = appNotificationDAO.getAppNotificationByID(Long.valueOf(id));
                if (appNotification != null)
                {
                    if (appNotification.getPhoto().equalsIgnoreCase("NA"))
                    {
                    /* photo is a field in my AppNotification class and getPhoto() is getter  and appNotification.getPhoto() returns the value stored in it. Here am using it to save url of image related to notification in my web app*/

                        /*if url is not present then below method displays just a text as notification*/
                        showBigTextStyleNotification(appNotification);
                    }
                    else
                    {


                    /*if there is url then am running asyncTask to get bitmap of that image and show it in notification tray along with text. Below method does that*/
                        new showBigPictureStyleNotification(MyFirebaseMessagingService.this,
                                appNotification.getMessage(),
                                Links.NOTIFICATION_IMAGE + "/" + appNotification.getPhoto(), appNotification)
                                .execute();

                                /* am passing some variables inside above methods, and Links is a class where have defined some strings (links) to my webapp*/
                    }
                }
            }
        });
        dataFromServer.getAppNotificationFromServer(Long.valueOf(id));




    }

    private void displayNotification(AppNotification appNotification)
    {
        Intent intent = new Intent(MyFirebaseMessagingService.this, NotificationListActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(MyFirebaseMessagingService.this,
                0, intent, PendingIntent.FLAG_ONE_SHOT);

        Uri notificationSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        builder.setContentTitle("KSP_PQRS");
        builder.setContentText(appNotification.getSubject());
        builder.setContentIntent(pendingIntent);
        builder.setSmallIcon(R.drawable.notification);
        builder.setSound(notificationSoundUri);
        builder.build();

        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(100, builder.build());
    }

    private void showBigTextStyleNotification(AppNotification appNotification)
    {
        Bitmap icon1 = BitmapFactory.decodeResource(getResources(),
                R.drawable.police_logo);

        android.support.v4.app.NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                this).setAutoCancel(true)
                .setContentTitle(appNotification.getSubject())
                .setSmallIcon(R.drawable.police_logo)
                .setLargeIcon(icon1)
                .setContentText(appNotification.getMessage());

        NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
        bigText.bigText(appNotification.getMessage());
        bigText.setBigContentTitle(appNotification.getSubject());
        bigText.setSummaryText(getResources().getString(R.string.app_name));
        mBuilder.setStyle(bigText);
        mBuilder.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
        mBuilder.setPriority(NotificationCompat.PRIORITY_MAX);

        // Creates an explicit intent for an Activity in your app
        Intent resultIntent;
        if (appNotification.getType().equalsIgnoreCase("GEN"))
        {
            resultIntent = new Intent(this, NotificationListActivity.class);
        }
        else
        {
            resultIntent = new Intent(this, MainActivity.class);
        }

        TaskStackBuilder stackBuilder = TaskStackBuilder
                .create(this);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent = stackBuilder
                .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(resultPendingIntent);

        NotificationManager mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(((int) appNotification.getId()) + 1000, mBuilder.build());
    }

    private class showBigPictureStyleNotification extends AsyncTask<String, Void, Bitmap>
    {
        private Context mContext;
        private String title, message, imageUrl;
        AppNotification appNotification;

        showBigPictureStyleNotification(Context context, String message, String imageUrl, AppNotification appNotification)
        {
            super();
            this.mContext = context;
            this.title = getResources().getString(R.string.app_name);
            this.message = message;
            this.imageUrl = imageUrl;
            this.appNotification = appNotification;
        }

        @Override
        protected Bitmap doInBackground(String... params)
        {
            InputStream in;
            try
            {
                auth = new AppAuthDAO(mContext).getAppAuth();
                byte[] toEncrypt = (auth.getUsername() + ":" + auth.getPassword() + ":" + auth.getDeviceId()).getBytes();
                String encryptedCredentials = Base64.encodeToString(toEncrypt, Base64.NO_WRAP);

                URL url = new URL(this.imageUrl);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setDoInput(true);
                connection.setRequestProperty("Authorization", "Basic " + encryptedCredentials);
                connection.connect();
                in = connection.getInputStream();
                Bitmap myBitmap = BitmapFactory.decodeStream(in);
                return myBitmap;
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            return null;
        }

        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        @Override
        protected void onPostExecute(Bitmap result)
        {
            super.onPostExecute(result);

            Intent intent;
            if (appNotification.getType().equalsIgnoreCase("GEN"))
            {
                intent = new Intent(mContext, NotificationListActivity.class);
            }

            else
            {
                intent = new Intent(mContext, MainActivity.class);
            }

            PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 100, intent, PendingIntent.FLAG_ONE_SHOT);

            NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
            Notification notif = new Notification.Builder(mContext)
                    .setContentIntent(pendingIntent)
                    .setContentTitle(title)
                    .setContentText(appNotification.getSubject())
                    .setTicker(message)
                    .setSubText(message)
                    .setSmallIcon(R.drawable.police_logo)
                    .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.police_logo))

                    /*using setStyle am setting big image along with some lines of text in notifications*/
                    .setStyle(new Notification.BigPictureStyle().bigPicture(result))
                    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                    .build();
            notif.flags |= Notification.FLAG_AUTO_CANCEL;
            notificationManager.notify(((int) appNotification.getId()) + 1000, notif);
        }
    }
}

Firebase推送通知 - 如何在通知中显示多行消息

6 个答案: