Android通知声音

Question

我使用了较新的NotificationCompat builder，无法获得发出声音的通知。它将振动并闪烁灯光。android文档中说要设置一种我已经使用过的样式：

builder.setStyle(new NotificationCompat.InboxStyle());

但是没有声音？

完整的代码：

NotificationCompat.Builder builder =  
        new NotificationCompat.Builder(this)  
        .setSmallIcon(R.drawable.ic_launcher)  
        .setContentTitle("Notifications Example")  
        .setContentText("This is a test notification");  


Intent notificationIntent = new Intent(this, MenuScreen.class);  

PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,   
        PendingIntent.FLAG_UPDATE_CURRENT);  

builder.setContentIntent(contentIntent);  
builder.setAutoCancel(true);
builder.setLights(Color.BLUE, 500, 500);
long[] pattern = {500,500,500,500,500,500,500,500,500};
builder.setVibrate(pattern);
builder.setStyle(new NotificationCompat.InboxStyle());
// Add as notification  
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
manager.notify(1, builder.build());  

Answer 1

默认声音的另一种方式

builder.setDefaults(Notification.DEFAULT_SOUND);

Answer 2

只需将您的声音文件放入Res\raw\siren.mp3文件夹，然后使用以下代码：

对于自定义声音：

Notification notification = builder.build();
notification.sound = Uri.parse("android.resource://"
            + context.getPackageName() + "/" + R.raw.siren);

对于默认声音：

notification.defaults |= Notification.DEFAULT_SOUND;

对于自定义振动：

long[] vibrate = { 0, 100, 200, 300 };
notification.vibrate = vibrate;

对于默认振动：

notification.defaults |= Notification.DEFAULT_VIBRATE;

Answer 3

我以前的代码缺少什么：

Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
builder.setSound(alarmSound);