执行展开和折叠通知android

Question

我需要在状态栏中为Android 4.0及以上版本实现展开和折叠通知。我已经在谷歌搜索这一点，但并没有得到执行任何代码解决方案没有任何人有我的想法如何实现这一

预先感谢您

Answer 1

的可扩张的Notification是NotificationBig View的一个特例。如果Big View不在通知抽屉的顶部，则它显示为“关闭”并可通过滑动进行扩展。来自Android开发人员的报价：

通知的大视图仅在通知展开时才会出现，当通知位于通知抽屉顶部时，或用户通过手势展开通知时发生。扩展通知从Android 4.1开始。

Notification notification = new Notification.BigTextStyle(builder) 
.bigText(myText).build(); 

或

Notification notification = new Notification.BigPictureStyle(builder) 
.bigPicture(
    BitmapFactory.decodeResource(getResources(), 
    R.drawable.my_picture)).build(); 

Here是一个教程：

的Big ViewNotification可以如下创建。

Answer 2

我们无法在Android 4.1以下版本中创建可扩展通知。 但是，我们可以做，而不是我们可以堆叠的通知，然后我们可以设置一个挂起的意向我们漂亮的自定义活动，它显示列表中的所有通知。 用户会乐意看到这个:)

Answer 3

Notification noti = new Notification.Builder() 
... // The same notification properties as the others 
.setStyle(new Notification.BigPictureStyle().bigPicture(mBitmap)) 
.build(); 

您更改

.setStyle(new NotificationCompat.BigTextStyle().bigText(th_alert)) 

与公告OK一起！

notification = new NotificationCompat.Builder(context) 

下面是一个例子：

您可以设置代码

Intent intent = new Intent(context, ReserveStatusActivity.class); 
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); 
NotificationManager notificationManager = 
      (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); 
intent = new Intent(String.valueOf(PushActivity.class)); 
intent.putExtra("message", MESSAGE); 
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); 
stackBuilder.addParentStack(PushActivity.class); 
stackBuilder.addNextIntent(intent); 
// PendingIntent pendingIntent = 
stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); 

// android.support.v4.app.NotificationCompat.BigTextStyle bigStyle = new  NotificationCompat.BigTextStyle(); 
// bigStyle.bigText((CharSequence) context); 

notification = new NotificationCompat.Builder(context) 
    .setSmallIcon(R.mipmap.ic_launcher) 
    .setContentTitle(th_title) 
    .setContentText(th_alert) 
    .setAutoCancel(true) 
// .setStyle(new Notification.BigTextStyle().bigText(th_alert) ตัวเก่า 
// .setStyle(new NotificationCompat.BigTextStyle().bigText(th_title)) 
    .setStyle(new NotificationCompat.BigTextStyle().bigText(th_alert)) 
    .setContentIntent(pendingIntent) 
    .setNumber(++numMessages) 
    .build(); 

notification.sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); 
notificationManager.notify(1000, notification); 

或

private void sendNotification(RemoteMessage.Notification notification, Map<String, String> data) { 
     Bitmap icon = BitmapFactory.decodeResource(getResources(), R.drawable.logo); 

     Intent intent = new Intent(this, MainActivity.class); 
     intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
     PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT); 

     NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) 
       // .setContentTitle(notification.getTitle()) 
       .setContentTitle(getResources().getText(R.string.app_name)) 
       .setContentText(notification.getBody()) 
       .setAutoCancel(true) 
       .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)) 
       .setContentIntent(pendingIntent) 
       .setStyle(new NotificationCompat.BigTextStyle().bigText(notification.getBody())) 
       .setContentInfo(notification.getTitle()) 
       .setLargeIcon(icon) 
       .setColor(Color.RED) 
       .setSmallIcon(R.drawable.logo); 

     try { 
      String picture_url = data.get("picture_url"); 
      if (picture_url != null && !"".equals(picture_url)) { 
       URL url = new URL(picture_url); 
       Bitmap bigPicture = BitmapFactory.decodeStream(url.openConnection().getInputStream()); 
       notificationBuilder.setStyle(
         new NotificationCompat.BigPictureStyle().bigPicture(bigPicture).setSummaryText(notification.getBody()) 
       ); 
      } 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

     notificationBuilder.setDefaults(Notification.DEFAULT_VIBRATE); 
     notificationBuilder.setLights(Color.YELLOW, 1000, 300); 

     NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 
     notificationManager.notify(0, notificationBuilder.build()); 
    }