java - 奥利奥后通知背景颜色

Question

我正在尝试在 android Pie 中为我的通知设置颜色，但遵循 Android Developers 上的信息，我似乎无法让它工作，即通知保持白色。这是我的代码:

public class MainActivity extends AppCompatActivity {

int mColor = Color.CYAN;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

public void sendNotification(View view) {
    NotificationChannel notificationChannel = new NotificationChannel("1", "1", NotificationManager.IMPORTANCE_DEFAULT);
    notificationChannel.setDescription("Test Notifications");

    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    notificationManager.createNotificationChannel(notificationChannel);

    Notification.Builder builder = new Notification.Builder(this, "1");
    builder.setSmallIcon(R.mipmap.ic_launcher_round)
            .setContentText("Test Notification")
            .setColorized(true)
            .setColor(mColor);

    NotificationManagerCompat notificationManagerCompat = NotificationManagerCompat.from(this);
    notificationManagerCompat.notify(1, builder.build());

}

我将不胜感激对此的一些指示，谢谢!

Answer 1

您链接到的方法是这样的:

For most styles, the coloring will only be applied if the notification is for a foreground service notification. However, for Notification.MediaStyle and Notification.DecoratedMediaCustomViewStyle notifications that have a media session attached there is no such requirement.

除非您为通知使用 MediaStyle 或 DecoratedMediaCustomViewStyle，否则无法通过正常调用 notify() 设置颜色。

如果您无法使用这两种样式中的任何一种，则此通知需要成为服务的一部分，您可以在 startForeground() 中传递它。