我正在使用Android Studio中的通知制作地理围栏应用程序。但是我遇到的问题是通知没有显示出来。它说它没有小图标,但我确实在我的代码中包含了它。
错误:02-19 15:06:42.276 1260-1260 /? E / NotificationService:没有 发布没有小图标的通知:通知(channel = null pri = 2 contentView = null vibrate = [0] sound = null defaults = 0x0 flags = 0x91 color = 0x00000000 vis = PRIVATE)02-19 15:06:42.276 1260-1260 /? E / NotificationService:警告:在将来的版本中,这将崩溃 应用程序:com.koo.lightmanager 02-19 15:06:42.277 1260-1260 /? E / NotificationService:使用模式创建振动波形时出错: [0]
代码:
private void sendNotification(String title, String content) {
Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher_round)
.setContentTitle(title)
.setContentText(content);
NotificationManager manager = (NotificationManager)this.getSystemService(Context.NOTIFICATION_SERVICE);
Intent intent = new Intent(this,MapsActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this,0,intent,PendingIntent.FLAG_IMMUTABLE);
builder.setContentIntent(contentIntent);
Notification notification = builder.build();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.defaults |= Notification.DEFAULT_SOUND;
manager.notify(new Random().nextInt(),notification);
}
答案 0 :(得分:0)
将图标放在Drawable文件夹中,它将起作用
Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.drawable.ic_launcher_round)