package com.example.myapplication.Service; import android.app.Notification; import android.app.NotificationChannel; import android.app.NotificationManager; import android.app.Service; import android.content.Intent; import android.os.Build; import android.os.IBinder; import androidx.annotation.Nullable; import androidx.core.app.NotificationCompat; import com.example.myapplication.R; public class ForegroundService extends Service { @Override public void onCreate() { super.onCreate(); startForeground(1, createNotification()); } @Nullable @Override public IBinder onBind(Intent intent) { return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { return START_STICKY; } private Notification createNotification() { NotificationChannel channel = null; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { channel = new NotificationChannel( "channel_id", "Foreground Service", NotificationManager.IMPORTANCE_LOW ); NotificationManager manager = getSystemService(NotificationManager.class); manager.createNotificationChannel(channel); } return new NotificationCompat.Builder(this, "channel_id") .setContentTitle("录音服务运行中") .setContentText("悬浮球正在运行") .setSmallIcon(R.drawable.ic_mic_off) .build(); } }