일반 알림 작성기는 Android O에 알림을 표시하지 않습니다.
Android 8 Oreo에 알림을 표시하려면 어떻게해야합니까?
Android O에 알림을 표시하기 위해 추가 할 새로운 코드가 있습니까?
답변
Android O에서는 Notification Builder와 함께 채널을 사용해야합니다.
아래는 샘플 코드입니다.
// Sets an ID for the notification, so it can be updated.
int notifyID = 1;
String CHANNEL_ID = "my_channel_01";// The id of the channel.
CharSequence name = getString(R.string.channel_name);// The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
// Create a notification and set the notification channel.
Notification notification = new Notification.Builder(MainActivity.this)
.setContentTitle("New Message")
.setContentText("You've received new messages.")
.setSmallIcon(R.drawable.ic_notify_status)
.setChannelId(CHANNEL_ID)
.build();
또는 다음과 같은 방법으로 취급 호환성이 있습니다.
NotificationCompat notification =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!")
.setChannelId(CHANNEL_ID).build();
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.createNotificationChannel(mChannel);
// Issue the notification.
mNotificationManager.notify(notifyID , notification);
또는 간단한 수정이 필요한 경우 다음 코드를 사용하십시오.
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
mNotificationManager.createNotificationChannel(mChannel);
}
업데이트 :
NotificationCompat.Builder 참조
NotificationCompat.Builder(Context context)
이 생성자는 API 레벨 26.0.0에서 더 이상 사용되지 않으므로 사용해야합니다.
Builder(Context context, String channelId)
따라서 setChannelId
새로운 생성자와 관련이 없습니다 .
그리고 현재 26.0.2의 최신 AppCompat 라이브러리를 사용해야합니다
compile "com.android.support:appcompat-v7:26.0.+"
또한 공식 Android 문서를 확인할 수 있습니다
답변
여기에 의도 처리가있는 빠른 솔루션 기능을 게시합니다.
public void showNotification(Context context, String title, String body, Intent intent) {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
int notificationId = 1;
String channelId = "channel-01";
String channelName = "Channel Name";
int importance = NotificationManager.IMPORTANCE_HIGH;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
NotificationChannel mChannel = new NotificationChannel(
channelId, channelName, importance);
notificationManager.createNotificationChannel(mChannel);
}
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context, channelId)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(title)
.setContentText(body);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addNextIntent(intent);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
notificationManager.notify(notificationId, mBuilder.build());
}
답변
이 답변 외에도 알림 채널을 사용하려면 알림 채널을 만들어야합니다.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
/* Create or update. */
NotificationChannel channel = new NotificationChannel("my_channel_01",
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
mNotificationManager.createNotificationChannel(channel);
}
또한 targetSdkVersion이 26 이상인 경우에만 채널을 사용해야합니다.
NotificationCompat.Builder를 사용하는 경우 지원 라이브러리의 베타 버전으로 업데이트해야합니다. https://developer.android.com/topic/libraries/support-library/revisions.html#26-0-0- 베타 2 ( setChannelId
Compat Builder 를 호출 할 수 있도록 )
이 라이브러리 업데이트는 minSdkLevel을 14로 올리므로주의하십시오.
답변
public class MyFirebaseMessagingServices extends FirebaseMessagingService {
private NotificationChannel mChannel;
private NotificationManager notifManager;
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
if (remoteMessage.getData().size() > 0) {
try {
JSONObject jsonObject = new JSONObject(remoteMessage.getData());
displayCustomNotificationForOrders(jsonObject.getString("title"), jsonObject.getString("description"));
} catch (JSONException e) {
e.printStackTrace();
}
}
}
private void displayCustomNotificationForOrders(String title, String description) {
if (notifManager == null) {
notifManager = (NotificationManager) getSystemService
(Context.NOTIFICATION_SERVICE);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationCompat.Builder builder;
Intent intent = new Intent(this, Dashboard.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent;
int importance = NotificationManager.IMPORTANCE_HIGH;
if (mChannel == null) {
mChannel = new NotificationChannel
("0", title, importance);
mChannel.setDescription(description);
mChannel.enableVibration(true);
notifManager.createNotificationChannel(mChannel);
}
builder = new NotificationCompat.Builder(this, "0");
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
pendingIntent = PendingIntent.getActivity(this, 1251, intent, PendingIntent.FLAG_ONE_SHOT);
builder.setContentTitle(title)
.setSmallIcon(getNotificationIcon()) // required
.setContentText(description) // required
.setDefaults(Notification.DEFAULT_ALL)
.setAutoCancel(true)
.setLargeIcon(BitmapFactory.decodeResource
(getResources(), R.mipmap.logo))
.setBadgeIconType(R.mipmap.logo)
.setContentIntent(pendingIntent)
.setSound(RingtoneManager.getDefaultUri
(RingtoneManager.TYPE_NOTIFICATION));
Notification notification = builder.build();
notifManager.notify(0, notification);
} else {
Intent intent = new Intent(this, Dashboard.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = null;
pendingIntent = PendingIntent.getActivity(this, 1251, intent, PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setContentTitle(title)
.setContentText(description)
.setAutoCancel(true)
.setColor(ContextCompat.getColor(getBaseContext(), R.color.colorPrimary))
.setSound(defaultSoundUri)
.setSmallIcon(getNotificationIcon())
.setContentIntent(pendingIntent)
.setStyle(new NotificationCompat.BigTextStyle().setBigContentTitle(title).bigText(description));
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1251, notificationBuilder.build());
}
}
private int getNotificationIcon() {
boolean useWhiteIcon = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
return useWhiteIcon ? R.mipmap.logo : R.mipmap.logo;
}
}
답변
26+ SDK 버전에서 푸시 알림을받을 수 없다면?
귀하의 솔루션은 다음과 같습니다.
public static void showNotification(Context context, String title, String messageBody) {
boolean isLoggedIn = SessionManager.getInstance().isLoggedIn();
Log.e(TAG, "User logged in state: " + isLoggedIn);
Intent intent = null;
if (isLoggedIn) {
//goto notification screen
intent = new Intent(context, MainActivity.class);
intent.putExtra(Extras.EXTRA_JUMP_TO, DrawerItems.ITEM_NOTIFICATION);
} else {
//goto login screen
intent = new Intent(context, LandingActivity.class);
}
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT);
//Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
//Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_app_notification_icon);
String channel_id = createNotificationChannel(context);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context, channel_id)
.setContentTitle(title)
.setContentText(messageBody)
.setStyle(new NotificationCompat.BigTextStyle().bigText(messageBody))
/*.setLargeIcon(largeIcon)*/
.setSmallIcon(R.drawable.app_logo_color) //needs white icon with transparent BG (For all platforms)
.setColor(ContextCompat.getColor(context, R.color.colorPrimaryDark))
.setVibrate(new long[]{1000, 1000})
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(pendingIntent)
.setPriority(Notification.PRIORITY_HIGH)
.setAutoCancel(true);
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify((int) ((new Date(System.currentTimeMillis()).getTime() / 1000L) % Integer.MAX_VALUE) /* ID of notification */, notificationBuilder.build());
}
public static String createNotificationChannel(Context context) {
// NotificationChannels are required for Notifications on O (API 26) and above.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The id of the channel.
String channelId = "Channel_id";
// The user-visible name of the channel.
CharSequence channelName = "Application_name";
// The user-visible description of the channel.
String channelDescription = "Application_name Alert";
int channelImportance = NotificationManager.IMPORTANCE_DEFAULT;
boolean channelEnableVibrate = true;
// int channelLockscreenVisibility = Notification.;
// Initializes NotificationChannel.
NotificationChannel notificationChannel = new NotificationChannel(channelId, channelName, channelImportance);
notificationChannel.setDescription(channelDescription);
notificationChannel.enableVibration(channelEnableVibrate);
// notificationChannel.setLockscreenVisibility(channelLockscreenVisibility);
// Adds NotificationChannel to system. Attempting to create an existing notification
// channel with its original values performs no operation, so it's safe to perform the
// below sequence.
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
assert notificationManager != null;
notificationManager.createNotificationChannel(notificationChannel);
return channelId;
} else {
// Returns null for pre-O (26) devices.
return null;
}
}
NotificationCompat.Builder notificationBuilder = 새로운 NotificationCompat.Builder (context, channel_id)
-> 여기 channel_id
에서 26+ SDK 버전으로 구성된 장치에서 푸시 알림을받습니다 .
-> NotificationCompat.Builder(context)
더 이상 사용되지 않는 메소드 이기 때문에 하나는 컨텍스트이고 다른 하나는 channel_id 인 두 개의 매개 변수가있는 업데이트 된 버전을 사용합니다.
-> NotificationCompat.Builder(context, channel_id)
업데이트 된 방법. 시도 해봐.
-> 26+ SDK 버전의 기기에서는 매번 channel_id를 생성합니다.
답변
이 클래스를 사용하여 Android 8 알림
public class NotificationHelper {
private Context mContext;
private NotificationManager mNotificationManager;
private NotificationCompat.Builder mBuilder;
public static final String NOTIFICATION_CHANNEL_ID = "10001";
public NotificationHelper(Context context) {
mContext = context;
}
/**
* Create and push the notification
*/
public void createNotification(String title, String message)
{
/**Creates an explicit intent for an Activity in your app**/
Intent resultIntent = new Intent(mContext , SomeOtherActivity.class);
resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext,
0 /* Request code */, resultIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder = new NotificationCompat.Builder(mContext);
mBuilder.setSmallIcon(R.mipmap.ic_launcher);
mBuilder.setContentTitle(title)
.setContentText(message)
.setAutoCancel(false)
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(resultPendingIntent);
mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
{
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);
}
assert mNotificationManager != null;
mNotificationManager.notify(0 /* Request Code */, mBuilder.build());
}
}
답변
이 코드를 사용해보십시오 :
public class FirebaseMessagingServices extends com.google.firebase.messaging.FirebaseMessagingService {
private static final String TAG = "MY Channel";
Bitmap bitmap;
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
Utility.printMessage(remoteMessage.getNotification().getBody());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
String title = remoteMessage.getData().get("title");
String body = remoteMessage.getData().get("body");
String message = remoteMessage.getData().get("message");
String imageUri = remoteMessage.getData().get("image");
String msg_id = remoteMessage.getData().get("msg-id");
Log.d(TAG, "1: " + title);
Log.d(TAG, "2: " + body);
Log.d(TAG, "3: " + message);
Log.d(TAG, "4: " + imageUri);
if (imageUri != null)
bitmap = getBitmapfromUrl(imageUri);
}
sendNotification(message, bitmap, title, msg_id);
}
}
private void sendNotification(String message, Bitmap image, String title,String msg_id) {
int notifyID = 0;
try {
notifyID = Integer.parseInt(msg_id);
} catch (NumberFormatException e) {
e.printStackTrace();
}
String CHANNEL_ID = "my_channel_01"; // The id of the channel.
Intent intent = new Intent(this, HomeActivity.class);
intent.putExtra("title", title);
intent.putExtra("message", message);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "01")
.setContentTitle(title)
.setSmallIcon(R.mipmap.ic_notification)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(message))
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setChannelId(CHANNEL_ID)
.setContentIntent(pendingIntent);
if (image != null) {
notificationBuilder.setStyle(new NotificationCompat.BigPictureStyle() //Set the Image in Big picture Style with text.
.bigPicture(image)
.setSummaryText(message)
.bigLargeIcon(null));
}
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { // For Oreo and greater than it, we required Notification Channel.
CharSequence name = "My New Channel"; // The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel channel = new NotificationChannel(CHANNEL_ID,name, importance); //Create Notification Channel
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(notifyID /* ID of notification */, notificationBuilder.build());
}
public Bitmap getBitmapfromUrl(String imageUrl) { //This method returns the Bitmap from Url;
try {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(input);
return bitmap;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
}