[英]Android 8.1 notifications showing but not making any sounds
我有一項服務,其中包括秒表,在前台運行。 服務啟動時,會顯示通知,結束時,我會用聲音和一些表明其已完成的文本進行更新。 問題在於,此方法在api 25之前效果良好,但是對於26和27,它可以正常更新通知,但不會發出聲音。 以下是相關代碼:
在服務內部創建通知:
mBuilder = new NotificationCompat.Builder(context, "Main")
.setSmallIcon(R.drawable.ic_notification_temp)
.setContentTitle(step.getDescription())
.setContentText(getString(R.string.notification_text))
.setVisibility(VISIBILITY_PUBLIC)
.setOngoing(true);
.setDeleteIntent(deletePendingIntent);
.setContentIntent(contentPendingIntent);
.addAction(R.drawable.ic_stop_red_24dp, getString(R.string.cancel),finnishPendingIntent);
mNotificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(mId, mBuilder.build());
“工作”完成時對通知構建器的更新:
mBuilder.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
mBuilder.setVibrate(new long[]{0, 300, 0, 400, 0, 500});
mBuilder.setOngoing(false);
mBuilder.setAutoCancel(true);
mBuilder.setContentText(getString(R.string.notification_finished_text));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
mBuilder.setChannelId("Sound");
mBuilder.setCategory(NotificationCompat.CATEGORY_ALARM);
}
mNotificationManager.notify(mId, mBuilder.build());
僅在應用啟動時為api 26或更高版本創建的2個通道:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// Create the normal NotificationChannel
CharSequence name = getString(R.string.app_name);
int importance = NotificationManager.IMPORTANCE_LOW;
NotificationChannel channel = new NotificationChannel("Main", name, importance);
// Register the channel with the system; you can't change the importance
// or other notification behaviors after this
NotificationManager notificationManager = (NotificationManager) getSystemService(
NOTIFICATION_SERVICE);
notificationManager.createNotificationChannel(channel);
// Create theNotificationChannel with sound
importance = NotificationManager.IMPORTANCE_HIGH;
name = getString(R.string.notification_channel_sound);
NotificationChannel sound = new NotificationChannel("Sound", name, importance);
sound.enableVibration(true);
sound.setVibrationPattern(new long[]{0, 300, 0, 400, 0, 500});
AudioAttributes aa = new AudioAttributes.Builder()
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.setLegacyStreamType(AudioManager.STREAM_NOTIFICATION)
.setUsage(AudioAttributes.USAGE_NOTIFICATION_EVENT)
.build();
sound.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION), aa);
notificationManager.createNotificationChannel(sound);
}
那就是我現在的位置。 我試過不使用setsound(),因為我讀到通知應該只播放具有適當重要性的默認聲音(當然,我什至在嘗試正確更新頻道設置之間甚至卸載了該應用程序),但是沒有似乎適用於api 26,但我只是不知道自己在做什么錯。
試圖重現您的問題並完成創建的MVP,也許這將有助於您發現問題:
活動:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View btn = findViewById(R.id.clickMe);
btn.setTag(NotifService.CHANNEL_ID_MAIN);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String channelId = (String) v.getTag();
Intent intent = new Intent(v.getContext(), NotifService.class);
intent.putExtra(NotifService.TAG, channelId);
if (channelId.equals(NotifService.CHANNEL_ID_MAIN)) {
v.setTag(NotifService.CHANNEL_ID_SOUND);
} else {
v.setTag(NotifService.CHANNEL_ID_MAIN);
}
v.getContext().startService(intent);
}
});
}
}
服務:
public class NotifService extends IntentService {
public static final String TAG = "NotificationService";
public static final String CHANNEL_ID_MAIN = "Main";
public static final String CHANNEL_ID_SOUND = "Sound";
public static final int NOTIFICATION_ID = 123;
/**
* Creates an IntentService. Invoked by your subclass's constructor.
*/
public NotifService() {
super(TAG);//Used to name the worker thread, important only for debugging.
}
@Override
public void onCreate() {
super.onCreate();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(CHANNEL_ID_MAIN, "Channel Main", NotificationManager.IMPORTANCE_LOW);
NotificationChannel sound = new NotificationChannel(CHANNEL_ID_SOUND, "Channel Sound", NotificationManager.IMPORTANCE_HIGH);
sound.enableVibration(true);
sound.setVibrationPattern(new long[]{0, 300, 0, 400, 0, 500});
AudioAttributes aa = new AudioAttributes.Builder()
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.setLegacyStreamType(AudioManager.STREAM_NOTIFICATION)
.setUsage(AudioAttributes.USAGE_NOTIFICATION_EVENT)
.build();
sound.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION), aa);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
if (notificationManager != null) {
notificationManager.createNotificationChannel(channel);
notificationManager.createNotificationChannel(sound);
}
}
}
@Override
protected void onHandleIntent(@Nullable Intent intent) {
String channelId = intent.getStringExtra(TAG);
showNotification(channelId);
}
private void showNotification(String channelId) {
boolean inProgress = channelId.equals(CHANNEL_ID_MAIN);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.ic_launcher_foreground)
.setContentTitle("Work")
.setContentText(inProgress ? "InProgress" : "Finished")
.setOngoing(inProgress)
.setVisibility(VISIBILITY_PUBLIC)
.setAutoCancel(!inProgress);
if (!inProgress) {
builder.setCategory(NotificationCompat.CATEGORY_ALARM);
}
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (notificationManager != null) {
notificationManager.notify(NOTIFICATION_ID, builder.build());
}
}
}
這在我的設備8.1和Emulator 8.1上效果很好(第一次單擊時無聲音,第一次通知時發出振動+聲音,但未通知工作完成通知)。
我的大多數模擬器AVD都存在完全相同的問題。 以下為我修復了它:
之后,它應該再次工作。
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