自定义通知声音在 Android Oreo 中不起作用

Question

Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);
            mBuilder.setSound(sound);

我已将 mp3 (notification_mp3.mp3) 文件复制到 res 文件夹中的 raw 文件夹中。 当通知被触发时，它会产生Android Nougat中的给定 mp3 声音，但Android Oreo中的默认声音。 我提到了很多网站，但在Android Oreo上没有任何效果。 我没有在 Android 文档中找到关于 Android O 及更高版本中通知声音的任何更改。 应该做哪些更改才能使此代码在 Android O 中也能正常工作？

Answer 1

要在 Oreo 中为通知设置声音，您必须在NotificationChannel而不是在Notification Builder本身上设置声音。 您可以按如下方式执行此操作

Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

        NotificationChannel mChannel = new NotificationChannel("YOUR_CHANNEL_ID",
            "YOUR CHANNEL NAME",
            NotificationManager.IMPORTANCE_DEFAULT)

        AudioAttributes attributes = new AudioAttributes.Builder()
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .build();

        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, 
                context.getString(R.string.app_name),
                NotificationManager.IMPORTANCE_HIGH);

        // Configure the notification channel.
        mChannel.setDescription(msg);
        mChannel.enableLights(true);
        mChannel.enableVibration(true);
        mChannel.setSound(sound, attributes); // This is IMPORTANT


        if (mNotificationManager != null)
            mNotificationManager.createNotificationChannel(mChannel);
    }

这将为您的通知设置自定义声音。 但是如果应用程序正在更新并且之前使用过通知通道，则不会更新。 即您需要创建一个不同的频道并为其设置声音以使其工作。 但这将在您应用的应用信息的通知部分显示多个频道。 如果您将声音设置到一个全新的频道很好，但如果您希望以前使用该频道，则必须删除现有频道并重新创建该频道。 为此，您可以在创建频道之前执行类似操作

if (mNotificationManager != null) {
            List<NotificationChannel> channelList = mNotificationManager.getNotificationChannels();

            for (int i = 0; channelList != null && i < channelList.size(); i++) {
                mNotificationManager.deleteNotificationChannel(channelList.get(i).getId());
            }
        }

Answer 2

这可能对新来者有所帮助。

这是一个适用于所有具有各种可能设置的 android 版本的工作通知示例的代码。

1 -> sound and vibration
2 -> sound but no vibration
3 -> no sound but vibration
4 -> no sound no vibration

输出

Github Repo -> https://github.com/usman14/Notification

代码

主要活动

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;
import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.Switch;

public class MainActivity extends AppCompatActivity {

    public boolean shouldSound;
    public boolean shouldVibrate;
    NotificationManager notificationManager;

    Button button;
    Switch soundSwitch;
    Switch vibrationSwitch;

    @TargetApi(Build.VERSION_CODES.O)
    public void registerNormalNotificationChannel(android.app.NotificationManager notificationManager) {

        NotificationChannel channel_all = new NotificationChannel("CHANNEL_ID_ALL", "CHANNEL_NAME_ALL", NotificationManager.IMPORTANCE_HIGH);
        channel_all.enableVibration(true);
        notificationManager.createNotificationChannel(channel_all);

        NotificationChannel channel_sound = new NotificationChannel("CHANNEL_ID_SOUND", "CHANNEL_NAME_ALL", NotificationManager.IMPORTANCE_HIGH);
        channel_sound.enableVibration(false);
        notificationManager.createNotificationChannel(channel_sound);

        NotificationChannel channel_vibrate = new NotificationChannel("CHANNEL_ID_VIBRATE", "CHANNEL_NAME_ALL", NotificationManager.IMPORTANCE_HIGH);
        channel_vibrate.setSound(null, null);
        channel_vibrate.enableVibration(true);
        notificationManager.createNotificationChannel(channel_vibrate);


        NotificationChannel channel_none = new NotificationChannel("CHANNEL_ID_NONE", "CHANNEL_NAME_ALL", NotificationManager.IMPORTANCE_HIGH);
        channel_none.setSound(null, null);
        channel_none.enableVibration(false);
        notificationManager.createNotificationChannel(channel_none);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = findViewById(R.id.btn);
        soundSwitch = findViewById(R.id.switch_sound);
        vibrationSwitch = findViewById(R.id.switch_vibration);
        notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        if (isOreoOrAbove()) {
            setupNotificationChannels();
        }

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                makeNotification();
            }
        });

        soundSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                if (b) {
                    shouldSound = true;
                } else {
                    shouldSound = false;
                }
            }
        });

        vibrationSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                if (b) {
                    shouldVibrate = true;
                } else {
                    shouldVibrate = false;
                }
            }
        });
    }

    private void setupNotificationChannels() {
        registerNormalNotificationChannel(notificationManager);
    }

    public void makeNotification() {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(MainActivity.this, getChannelId())
                .setContentTitle("Hi")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentText("Welcome to Android");

        Intent intent = new Intent(MainActivity.this, MainActivity.class);

        PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder.setContentIntent(pendingIntent);
        if (shouldSound && !shouldVibrate) {
            builder.setDefaults(Notification.DEFAULT_SOUND)
                    .setVibrate(new long[]{0L});
        }
        if (shouldVibrate && !shouldSound) {
            builder.setDefaults(Notification.DEFAULT_VIBRATE)
                    .setSound(null);
        }
        if (shouldSound && shouldVibrate) {
            builder.setDefaults(Notification.DEFAULT_ALL);
        }


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

    private String getChannelId() {
        if (shouldSound && shouldVibrate) {
            return "CHANNEL_ID_ALL";
        } else if (shouldSound && !shouldVibrate) {
            return "CHANNEL_ID_SOUND";
        } else if (!shouldSound && shouldVibrate) {
            return "CHANNEL_ID_VIBRATE";
        } else {
            return "CHANNEL_ID_NONE";
        }
    }

    private boolean isOreoOrAbove() {
        return android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O;
    }
}

活动主（xml）

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">



    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:id="@+id/sound_layout"
        android:orientation="horizontal"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="SOUND SWITCH"></TextView>


        <Switch
            android:layout_marginLeft="50dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:id="@+id/switch_sound">

        </Switch>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/vibration_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="horizontal"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/sound_layout">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="VIBRATION SWITCH"></TextView>


        <Switch
            android:layout_marginLeft="50dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:id="@+id/switch_vibration">

        </Switch>

    </LinearLayout>


    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Send Notification"
        android:id="@+id/btn"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/vibration_layout"></Button>

</androidx.constraintlayout.widget.ConstraintLayout>

Answer 3

创建频道（我在Application.clss使用此方法创建频道）

  public void initChannels(Context context) {
    if (Build.VERSION.SDK_INT < 26) {
        return;
    }
    NotificationManager notificationManager =
            (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    NotificationChannel channel = new NotificationChannel("default"/*CHANNEL ID*/,
            "CHANNEL_NAME",
            NotificationManager.IMPORTANCE_DEFAULT);
    channel.setDescription("Channel description");
    assert notificationManager != null;
    notificationManager.createNotificationChannel(channel);
}

并在创建NotificationCompat实例时使用此通道default

 .... notificationBuilder = new NotificationCompat.Builder(this,"default") ....

Answer 4

Android O 带有 NotificationChannel 使用它来代替

 int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.enableVibration(true);
            notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            assert mNotificationManager != null;
            mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
            mNotificationManager.createNotificationChannel(notificationChannel);

Answer 5

mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH)

这行代码对我有用。 但是您必须删除旧频道并创建新频道。

Answer 6

嗨，伙伴们首先使用设备的默认通知声音，添加以下内容。

Uri uri = getDefaultUri(TYPE_NOTIFICATION); // To get the URI of default notification uri
AudioAttributes audioAttributes = new AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE)
                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION).build();

然后，抱歉，这听起来很傻。 但您还需要确保设备的默认通知和声音设置为 none 以外的其他内容。 我相信这很容易被忽视。

啦啦啦！

Answer 7

注释可能有助于模拟器测试。

不要忘记启用警报声，如下所示：-

Answer 8

Android 8 (API level 26)之后需要在通知通道中设置通知声音。

如果您在创建通知频道后更改声音，那么它将不起作用，因为我们只能在频道创建后更改频道名称和描述等一些内容。

因此，如果我们需要更改声音，那么我们已经使用不同的频道 ID 重新创建了频道。 请关注此博客以获得完整的实施

Answer 9

对于那些不起作用的，请确保发送频道 ID 和声音名称

 "notification" : {
      "body" : "Pass body here",
      "title" : "Title For Notification",
      "icon" : " icon ",
      "sound" : "my_alert.mp3" //Important
    }

以及来自您服务器的有效负载中的频道 ID

"channel_id": "myapp_notification_channel", // important

确保将相同的频道 ID 传递给构建器

//pre oreo
 builder = NotificationCompat.Builder(applicationContext, channelId)

//oreo
     val notificationChannel =
                    NotificationChannel(channelId, "my_app", NotificationManager.IMPORTANCE_HIGH)

确保你的同一个文件是 res/raw/my_alert.mp3

并使用下面的方法，不要用户 R.id.my_alert 使用如下

val alertSound = Uri.parse("${ContentResolver.SCHEME_ANDROID_RESOURCE}://${this.packageName}/raw/my_alert")

// and set like this
notificationChannel.setSound(alertSound, Notification.AUDIO_ATTRIBUTES_DEFAULT)

Answer 10

尝试这个：

/**
 * show notification
 *
 * @param message
 */
private static void showNotification(RemoteMessage message, Context baseContext) {
    Context context = baseContext.getApplicationContext();
    NotificationManagerCompat managerCompat = NotificationManagerCompat.from(context.getApplicationContext());
    NotificationCompat.Builder builder = new NotificationCompat.Builder(context, null)
            .setSmallIcon(R.drawable.ic_logo_xxxdpi)
            .setContentTitle(message.getData().get(TITLE))
            .setContentText(message.getData().get(BODY))
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setAutoCancel(true)
            .setVibrate(new long[]{500, 500})
            .setLights(Color.RED, 3000, 3000)
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
            .setContentIntent(getPendingIntent(context, message));
    managerCompat.notify(getRandom(), builder.build());
}