棒棒堂通知setVisibility（）不起作用？

我试图编写一个使用setVisibility()的演示来控制在Android 5.0锁屏上显示Notification的内容。然而，似乎没有任何影响：棒棒堂通知setVisibility（）不起作用？

默认VISIBILITY_PRIVATE仍显示私人Notification，而不是它的公共对口
VISIBILITY_SECRET通知仍然显示在锁定屏幕上

督察，所有的行为都像VISIBILITY_PUBLIC有效，至少当我测试运行Android 5.0图像的Nexus 7时，我们在Android 5.0发布后立即给出（构建LPX 13D）。所以我不知道问题是否与我的代码，这个设备或Android中的错误有关。

我具有相同的样本应用程序的两个版本：

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

一个 targetSdkVersion

（请注意，这些项目主要用于Android Studio; Eclipse用户可以导入项目，但他们可能需要轻微的修正，特别是第一个样品）到support-v13库引用

样品使用AlarmManager触发Notification工作，主要是让你有机会得到回锁屏以查看结果。这里是受AlarmManager触发（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正在从在活性的Spinner设置。这种逻辑似乎是好的，因为单挑Notification方案工作得很好。如果我单步执行代码（例如，onReceive()中的断点），我会看到它正在通过正确的路径（例如，当我选择提出秘密Notification时，在notifySecret()中调用setVisibility(NotificationCompat.VISIBILITY_SECRET)）。

因此，我有点不知所措，为什么我没有获得Android 5.0锁屏上的可见性效果。

有什么建议吗？

来源

2014-11-14 CommonsWare