棒棒堂通知setVisibility（）不起作用？

我試圖編寫一個使用setVisibility()的演示來控制在Android 5.0鎖屏上顯示Notification的內容。然而，似乎沒有任何影響：棒棒堂通知setVisibility（）不起作用？

默認VISIBILITY_PRIVATE仍顯示私人Notification，而不是它的公共對口
VISIBILITY_SECRET通知仍然顯示在鎖定屏幕上

督察，所有的行爲都像VISIBILITY_PUBLIC有效，至少當我測試運行Android 5.0圖像的Nexus 7時，我們在Android 5.0發佈後立即給出（構建LPX 13D）。所以我不知道問題是否與我的代碼，這個設備或Android中的錯誤有關。

我具有相同的樣本應用程序的兩個版本：

One使用NotificationCompat和NotificationManagerCompat
The other使用Notification和NotificationManager與21 minSdkVersion和21

一個 targetSdkVersion

（請注意，這些項目主要用於Android Studio; Eclipse用戶可以導入項目，但他們可能需要輕微的修正，特別是第一個樣品）到support-v13庫引用

樣品使用AlarmManager觸發Notification工作，主要是讓你有機會得到回鎖屏以查看結果。這裏是受AlarmManager觸發（表示NotificationCompat版本）的BroadcastReceiver：

/*** 
Copyright (c) 2014 CommonsWare, LLC 
Licensed under the Apache License, Version 2.0 (the "License"); you may not 
use this file except in compliance with the License. You may obtain a copy 
of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required 
by applicable law or agreed to in writing, software distributed under the 
License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS 
OF ANY KIND, either express or implied. See the License for the specific 
language governing permissions and limitations under the License. 

From _The Busy Coder's Guide to Android Development_ 
http://commonsware.com/Android 
*/ 

package com.commonsware.android.lollipopnotify; 

import android.app.Notification; 
import android.app.PendingIntent; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.provider.Settings; 
import android.support.v4.app.NotificationCompat; 
import android.support.v4.app.NotificationManagerCompat; 

public class AlarmReceiver extends BroadcastReceiver { 
    private static final int NOTIFY_ID=1337; 
    static final String EXTRA_TYPE="type"; 

    @Override 
    public void onReceive(Context ctxt, Intent i) { 
    NotificationManagerCompat mgr=NotificationManagerCompat.from(ctxt); 

    switch (i.getIntExtra(EXTRA_TYPE, -1)) { 
     case 0: 
     notifyPrivate(ctxt, mgr); 
     break; 

     case 1: 
     notifyPublic(ctxt, mgr); 
     break; 

     case 2: 
     notifySecret(ctxt, mgr); 
     break; 

     case 3: 
     notifyHeadsUp(ctxt, mgr); 
     break; 
    } 
    } 

    private void notifyPrivate(Context ctxt, NotificationManagerCompat mgr) { 
    Notification pub=buildPublic(ctxt).build(); 

    mgr.notify(NOTIFY_ID, buildNormal(ctxt).setPublicVersion(pub).build()); 
    } 

    private void notifyPublic(Context ctxt, NotificationManagerCompat mgr) { 
    mgr.notify(NOTIFY_ID, 
     buildNormal(ctxt) 
      .setVisibility(NotificationCompat.VISIBILITY_PUBLIC) 
      .build()); 
    } 

    private void notifySecret(Context ctxt, NotificationManagerCompat mgr) { 
    mgr.notify(NOTIFY_ID, 
     buildNormal(ctxt) 
      .setVisibility(NotificationCompat.VISIBILITY_SECRET) 
      .build()); 
    } 

    private void notifyHeadsUp(Context ctxt, NotificationManagerCompat mgr) { 
    mgr.notify(NOTIFY_ID, 
     buildNormal(ctxt) 
      .setPriority(NotificationCompat.PRIORITY_HIGH) 
      .build()); 
    } 

    private NotificationCompat.Builder buildNormal(Context ctxt) { 
    NotificationCompat.Builder b=new NotificationCompat.Builder(ctxt); 

    b.setAutoCancel(true) 
     .setDefaults(Notification.DEFAULT_ALL) 
     .setContentTitle(ctxt.getString(R.string.download_complete)) 
     .setContentText(ctxt.getString(R.string.fun)) 
     .setContentIntent(buildPendingIntent(ctxt, Settings.ACTION_SECURITY_SETTINGS)) 
     .setSmallIcon(android.R.drawable.stat_sys_download_done) 
     .setTicker(ctxt.getString(R.string.download_complete)) 
     .addAction(android.R.drawable.ic_media_play, 
      ctxt.getString(R.string.play), 
      buildPendingIntent(ctxt, Settings.ACTION_SETTINGS)); 

    return(b); 
    } 

    private NotificationCompat.Builder buildPublic(Context ctxt) { 
    NotificationCompat.Builder b=new NotificationCompat.Builder(ctxt); 

    b.setAutoCancel(true) 
     .setDefaults(Notification.DEFAULT_ALL) 
     .setContentTitle(ctxt.getString(R.string.public_title)) 
     .setContentText(ctxt.getString(R.string.public_text)) 
     .setContentIntent(buildPendingIntent(ctxt, Settings.ACTION_SECURITY_SETTINGS)) 
     .setSmallIcon(android.R.drawable.stat_sys_download_done) 
     .addAction(android.R.drawable.ic_media_play, 
      ctxt.getString(R.string.play), 
      buildPendingIntent(ctxt, Settings.ACTION_SETTINGS)); 

    return(b); 
    } 

    private PendingIntent buildPendingIntent(Context ctxt, String action) { 
    Intent i=new Intent(action); 

    return(PendingIntent.getActivity(ctxt, 0, i, 0)); 
    } 
}

的EXTRA_TYPE正在從在活性的Spinner設置。這種邏輯似乎是好的，因爲單挑Notification方案工作得很好。如果我單步執行代碼（例如，onReceive()中的斷點），我會看到它正在通過正確的路徑（例如，當我選擇提出祕密Notification時，在notifySecret()中調用setVisibility(NotificationCompat.VISIBILITY_SECRET)）。

因此，我有點不知所措，爲什麼我沒有獲得Android 5.0鎖屏上的可見性效果。

有什麼建議嗎？

來源

2014-11-14 CommonsWare