我试图显示来自firebase消息的通知，它在oreo及以上版本上工作，但只在kitkat设备上播放声音（我没有其他设备或模拟器进行测试），我得到一些奇怪的错误日志，例如
Could not find class 'android.app.Notification$Action$Builder', referenced
from method android.support.v4.app.NotificationCompatBuilder.addAction
我真的很难确定这一点，所以这里是代码的主要内容
private void sendNotification(Map<String, String> data) {
String author = data.get("USER_NAME");
String title = data.get("TITLE");
String body = data.get("BODY");
String id = data.get("USER_NUMBER");
String message = data.get("MESSAGE");
String type = data.get("TYPE");
String image = data.get("IMAGE");
String profileImage = data.get("USER_IMAGE");
String shortMessage = "";
Intent intent;
Bitmap bitmap;
Bitmap bitmap2;
intent = new Intent(this, MessageListActivity.class);
if (MessageListActivity.isAppRunning)
intent = new Intent(this, MainActivity.class);
intent.putExtra(Constants.USER_NAME, author);
intent.putExtra(Constants.USER_NUMBER, id);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
/*
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(intent);
*/
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
/*
String replyLabel = getString(R.string.notif_action_reply);
RemoteInput remoteInput = new RemoteInput.Builder(KEY_REPLY)
.setLabel(replyLabel)
.build();
*/
// If the message is longer than the max number of characters we want in our
// notification, truncate it and add the unicode character for ellipsis
if (message.length() > NOTIFICATION_MAX_CHARACTERS) {
shortMessage = message.substring(0, NOTIFICATION_MAX_CHARACTERS) + "\u2026";
}
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this);
if (type.equals("IMAGE")) {
bitmap = getBitmapfromUrl(image);
bitmap2 = getBitmapfromUrl(profileImage);
notificationBuilder
.setLargeIcon(bitmap2)
.setSmallIcon(R.drawable.message_me)
.setContentTitle(String.format(getString(R.string.notification_message), author))
.setStyle(new NotificationCompat.BigPictureStyle()
.setSummaryText(shortMessage)
.bigPicture(bitmap))
.setContentText(message)
.setColor(getResources().getColor(R.color.colorPrimary))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
} else if (type.equals("TEXT")) {
bitmap2 = getBitmapfromUrl(profileImage);
notificationBuilder
.setSmallIcon(R.drawable.message_me)
.setLargeIcon(bitmap2)
.setContentTitle(String.format(getString(R.string.notification_message), author))
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(message))
.setContentText(shortMessage)
.setColor(getResources().getColor(R.color.colorPrimary))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN
&& Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
notificationBuilder.setPriority(NotificationCompat.PRIORITY_HIGH);
getManager().notify(0 /* ID of notification */, notificationBuilder.build());
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
notificationBuilder = getChannelNotification(title, body, shortMessage, SINGLE_CHANNEL_ID, pendingIntent, type, image, profileImage);
getManager().notify(0, notificationBuilder.build());
}
}
private NotificationManager getManager() {
if (mManager == null) {
mManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
}
return mManager;
}
所有数据都存在并纠正我从中获得的第一个错误
Could not find class 'android.app.NotificationChannel', referenced from
method com.sealstudios.aimessage.MyFirebaseMessagingService.createChannels
我的createChannels方法就是这个
@RequiresApi(api = Build.VERSION_CODES.O)
public void createChannels() {
// create single channel
NotificationChannel singleChannel = new NotificationChannel(SINGLE_CHANNEL_ID,
SINGLE_CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT);
singleChannel.enableLights(true);
singleChannel.enableVibration(true);
singleChannel.setLightColor(R.color.colorPrimary);
singleChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
getManager().createNotificationChannel(singleChannel);
// create group channel
NotificationChannel groupChannel = new NotificationChannel(GROUP_CHANNEL_ID,
GROUP_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
groupChannel.enableLights(true);
groupChannel.enableVibration(true);
groupChannel.setLightColor(R.color.colorPrimary);
groupChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
getManager().createNotificationChannel(groupChannel);
}
但这只是在像这样的if括号中的onMessageReceived中调用的
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
// Check if message contains a data payload.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
createChannels();
}
if (remoteMessage.getData().size() > 0) {
Map<String, String> data = remoteMessage.getData();
if (data.size() > 0) {
if (!(chatActive && remoteMessage.getData().get("USER_NAME").equals(senderID))) {
//TODO add a mute notifications
sendNotification(data);
}
}
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
}
}
如上所述，我得到了完整的通知，没有任何担心android oreo的单独方法，这是
@RequiresApi(api = Build.VERSION_CODES.O)
public NotificationCompat.Builder getChannelNotification(String title,
String body, String smallMessage, String channelId,
PendingIntent pendingIntent, String type, String largeImage,
String smallImage) {
if (type.equals("TEXT")) {
Bitmap smallBitmap = getBitmapfromUrl(smallImage);
return new NotificationCompat.Builder(getApplicationContext())
.setChannelId(channelId)
.setContentTitle(title)
.setStyle(new NotificationCompat.BigTextStyle().bigText(body))
.setContentText(body)
.setColor(getResources().getColor(R.color.colorPrimary))
.setSmallIcon(R.drawable.message_me)
.setLargeIcon(smallBitmap)
.setContentIntent(pendingIntent)
.setAutoCancel(true);
} else if (type.equals("IMAGE")) {
Bitmap smallBitmap = getBitmapfromUrl(smallImage);
Bitmap largeBitmap = getBitmapfromUrl(largeImage);
return new NotificationCompat.Builder(getApplicationContext())
.setChannelId(channelId)
.setContentTitle(title)
.setStyle(new NotificationCompat.BigPictureStyle().setSummaryText(smallMessage).bigPicture(largeBitmap))
.setContentText(body)
.setColor(getResources().getColor(R.color.colorPrimary))
.setSmallIcon(R.drawable.message_me)
.setLargeIcon(smallBitmap)
.setContentIntent(pendingIntent)
.setAutoCancel(true);
}
return new NotificationCompat.Builder(getApplicationContext())
.setChannelId(channelId)
.setContentTitle(title)
.setContentText(body)
.setColor(getResources().getColor(R.color.colorPrimary))
.setSmallIcon(R.drawable.message_me)
.setContentIntent(pendingIntent)
.setAutoCancel(true);
}
但是除此之外我只是收到通知声音，我确信它在我将目标sdk提高到27之前曾经工作但是任何帮助都会受到赞赏
答案 0 :(得分：0)
这看起来像是通过更新gradle插件修复了