Android Studio通知不执行任何操作

Question

对不起，我的英语不好。我想要按钮按下时的通知，按钮按下效果很好，因为祝酒词“ ITS OKAY！”正在显示，但不执行任何操作。我刚刚在按下按钮时在logcat中发现了警告：

W/libEGL: EGLNativeWindowType 0x75cc082010 disconnect failed

我知道我必须使用CHANNEL_ID，但这并不更好。吐司正在显示...

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());
}

我想要一个通知，但是我的代码什么也没做，只是吐司！ ：（

Answer 1

据说您必须为比Android O更高的版本创建一个通知通道。正如文档中所说，您可以这样操作：

 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);
    }
}