自定义通知声音在 Android Oreo 中不起作用
Custom Notification Sound not working in Android Oreo
Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);
mBuilder.setSound(sound);
我已经将 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，它会产生给定的 mp3 声音，最高可达 Android Nougat，但默认声音为 Android Oreo。
我参考了很多网站，但在 Android Oreo 上没有任何效果。我没有在 Android 文档中发现关于 Android O 及以上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也适用于 Android O？
创建频道（我在Application.clss中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
的实例时使用此频道 default
.... notificationBuilder = new NotificationCompat.Builder(this,"default") ....
Android O 自带 NotificationChannel 改用它
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);
试试这个：
/**
* 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());
}
要在 Oreo 中为通知设置声音，您必须在 NotificationChannel 而不是 Notification Builder 本身上设置声音。您可以按如下方式进行
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。但如果应用正在更新，并且之前使用过通知通道，则不会更新。也就是说，您需要创建一个不同的频道并为其设置声音以使其正常工作。但这会在您应用的应用信息的通知部分显示多个渠道。如果您将声音设置为一个全新的频道，那很好，但如果您想要以前使用过的频道，则必须删除现有频道并重新创建频道。为此，您可以在创建频道之前做类似的事情
if (mNotificationManager != null) {
List<NotificationChannel> channelList = mNotificationManager.getNotificationChannels();
for (int i = 0; channelList != null && i < channelList.size(); i++) {
mNotificationManager.deleteNotificationChannel(channelList.get(i).getId());
}
}
这可能对新手有帮助。
这是所有 android 版本的工作通知示例代码，具有各种可能的设置。
1 -> sound and vibration
2 -> sound but no vibration
3 -> no sound but vibration
4 -> no sound no vibration
输出
Github 回购 -> 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;
}
}
activity_main (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>
mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH)
这行代码适合我。但是你必须删除旧频道并创建新频道。
您好，Mates首先要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，这听起来可能很愚蠢。但您还需要确保设备的默认通知和声音设置不是none。我相信这是很容易被忽视的。
干杯！
注释可能有助于模拟器测试。
不要忘记启用下面突出显示的警报声音：-
Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);
mBuilder.setSound(sound);
我已经将 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，它会产生给定的 mp3 声音，最高可达 Android Nougat，但默认声音为 Android Oreo。 我参考了很多网站，但在 Android Oreo 上没有任何效果。我没有在 Android 文档中发现关于 Android O 及以上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也适用于 Android O？
创建频道（我在Application.clss中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
default
.... notificationBuilder = new NotificationCompat.Builder(this,"default") ....
Android O 自带 NotificationChannel 改用它
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);
试试这个：
/**
* 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());
}
要在 Oreo 中为通知设置声音，您必须在 NotificationChannel 而不是 Notification Builder 本身上设置声音。您可以按如下方式进行
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。但如果应用正在更新，并且之前使用过通知通道，则不会更新。也就是说，您需要创建一个不同的频道并为其设置声音以使其正常工作。但这会在您应用的应用信息的通知部分显示多个渠道。如果您将声音设置为一个全新的频道，那很好，但如果您想要以前使用过的频道，则必须删除现有频道并重新创建频道。为此，您可以在创建频道之前做类似的事情
if (mNotificationManager != null) {
List<NotificationChannel> channelList = mNotificationManager.getNotificationChannels();
for (int i = 0; channelList != null && i < channelList.size(); i++) {
mNotificationManager.deleteNotificationChannel(channelList.get(i).getId());
}
}
这可能对新手有帮助。
这是所有 android 版本的工作通知示例代码，具有各种可能的设置。
1 -> sound and vibration
2 -> sound but no vibration
3 -> no sound but vibration
4 -> no sound no vibration
输出
Github 回购 -> 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;
}
}
activity_main (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>
mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH)
这行代码适合我。但是你必须删除旧频道并创建新频道。
您好，Mates首先要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，这听起来可能很愚蠢。但您还需要确保设备的默认通知和声音设置不是none。我相信这是很容易被忽视的。
干杯！
注释可能有助于模拟器测试。
不要忘记启用下面突出显示的警报声音：-