Android 通知不执行任何操作

Question

我想要在按下按钮时收到通知，按钮按下效果很好，因为吐司“没问题！”正在显示，但未显示通知。当按下按钮时，我刚刚在 logcat 中发现了一个警告：

W/libEGL: EGLNativeWindowType 0x75cc082010 disconnect failed

我知道我必须使用 CHANNEL_ID，但它并没有更好。

public void sendNotification() {
    Toast.makeText(this, "ITS OKAY!", Toast.LENGTH_SHORT).show();
    NotificationCompat.Builder mBuilder =
        new NotificationCompat.Builder(this, "CHANNEL_ID")
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentTitle("It is my notification's Title!")
            .setContentText("Notification Body!");
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(1, mBuilder.build());
}

我想要通知，但我的代码只显示 toast

Answer 1

据说你必须为比 Android O 更新的版本创建一个通知渠道。正如文档中所说，你可以这样做：

 createNotificationChannel();
 Notification notification = new NotificationCompat.Builder(this, "channelID")
              .setSmallIcon(R.drawable.notification_icon)
              .setContentTitle("My notification")
              .setContentText("Much longer text that cannot fit one line...")
              .build();


 private void createNotificationChannel() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        int importance = NotificationManager.IMPORTANCE_DEFAULT;
        NotificationChannel serviceChannel = new NotificationChannel(
                "channelID",
                "Channel Name",
                importance
        );

        NotificationManager manager = getSystemService(NotificationManager.class);
        manager.createNotificationChannel(serviceChannel);
    }
}

Android 通知不执行任何操作

Android Notification does not do anything

java

android

android-notifications