Android Color Notification Icon

问题:

I'm working on an app where I create a notification for the user. I want the icon to appear as white when it's in the status bar, but colored blue when it's being displayed in the drop down notification menu. Here's an example of the same thing being done by the Google Store app.

White notification in status bar:

Colored notification in drop down menu:

How can I replicate this? What properties do I have to set?

Edit: Here's my current code - I made the image all white with a transparent background, so it looks fine in the status bar, but in the notification drop, the image is still the same white color:

private NotificationCompat.Builder getNotificationBuilder() {
        return new NotificationCompat.Builder(mainActivity)
                .setDeleteIntent(deletedPendingIntent)
                .setContentIntent(startChatPendingIntent)
                .setAutoCancel(true)
                .setSmallIcon(R.drawable.skylight_notification)
                .setColor(ContextCompat.getColor(mainActivity, R.color.colorPrimary))
                .setContentTitle(mainActivity.getString(R.string.notification_title))
                .setContentText(mainActivity.getString(R.string.notification_prompt));
    }

回答1:

I found the answer to my question here: https://stackoverflow.com/a/44950197/4394594

I don't know entirely what the problem was, but by putting the huge png that I was using for the icon into the this tool https://romannurik.github.io/AndroidAssetStudio/icons-notification.html#source.type=image&source.space.trim=1&source.space.pad=0&name=ic_skylight_notification and by placing the generated icons it gave into my mipmap folder, I was able to get the setColor(...) property to work correctly.

回答2:

For firebase nofitications sent from console you just need to add this in your manifest:

    <meta-data
        android:name="com.google.firebase.messaging.default_notification_icon"
        android:resource="@drawable/white_logo" />

    <meta-data
        android:name="com.google.firebase.messaging.default_notification_color"
        android:resource="@color/custom_color" />

Where white_logo is your app white logo, and custom_color is the color you want to have the icon and text colored.

More details here: https://firebase.google.com/docs/cloud-messaging/android/client

回答3:

Here is what I did for my app ...

private void showNotification(Context context) {
    Log.d(MainActivity.APP_TAG, "Displaying Notification");
    Intent activityIntent = new Intent(context, MainActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);
    mBuilder.setSmallIcon(R.drawable.ic_notification);
    mBuilder.setColor(Color.GREEN);
    mBuilder.setContentIntent(pendingIntent);
    mBuilder.setContentTitle("EarthQuakeAlert");
    mBuilder.setContentText("It's been a while you have checked out earthquake data!");
    mBuilder.setDefaults(Notification.DEFAULT_SOUND);
    mBuilder.setAutoCancel(true);
    NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(1, mBuilder.build());
}

Sample With Color:

Sample without Color:

回答4:

When building the notification, you can set the color and the icon. If your icon is a pure white image, it'll apply the color for you in the correct spots.

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    val manager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
    val notificationId = 10 // Some unique id.

    // Creating a channel - required for O's notifications.
    val channel = NotificationChannel("my_channel_01",
            "Channel human readable title",
            NotificationManager.IMPORTANCE_DEFAULT)

    manager.createNotificationChannel(channel)

    // Building the notification.
    val builder = Notification.Builder(context, channel.id)
    builder.setContentTitle("Warning!")
    builder.setContentText("This is a bad notification!")
    builder.setSmallIcon(R.drawable.skull)
    builder.setColor(ContextCompat.getColor(context, R.color.colorPrimary))
    builder.setChannelId(channel.id)

    // Posting the notification.
    manager.notify(notificationId, builder.build())
}

回答5:

You can use the DrawableCompat.setTint(int drawable); of the drawable before setting the drawable. And do mutate() the drawable otherwise the color tint will be applied to every instance of that drawable