如何在android studio的前台添加motionSensor

问题描述

这是前台服务的类 包 com.example.mrgenz2;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.notificationmanager;
import android.app.PendingIntent;
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.intentfilter.androidpermissions.PermissionManager;

public class foreground_emergency extends Service {

    @Override
    public int onStartCommand(Intent intent,int flags,int startId) {
        final PermissionManager permissionManager = PermissionManager.getInstance(this);

        create_notification_channel();
        Intent intent1 = new Intent(this,MainActivity.class);
        PendingIntent pi = PendingIntent.getActivity(this,intent1,0);
        Notification noti = new NotificationCompat.Builder(this,"channel_id")
                .setContentTitle("foreground tutorial")
                .setContentText("the application is running")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentIntent(pi)
                .build();

        startForeground(1,noti);
        return START_STICKY;
    }

    private void create_notification_channel()
    {
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
        {
            NotificationChannel nc = new NotificationChannel(
                    "channel_id","foreground notification",notificationmanager.IMPORTANCE_DEFAULT
            );
            notificationmanager manager = getSystemService(notificationmanager.class);
            manager.createNotificationChannel(nc);


        }
    }


    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onDestroy() {
        stopForeground(true);
        stopSelf();
        super.onDestroy();
    }
}

这是来自另一个类的motionSensor类

    public class vibrator extends broadcastReceiver implements SensorEventListener {
        @Override
        public void onSensorChanged(SensorEvent sensorEvent) {
    enter code here
            final TextView accel_1 =  stand_by_floating_view.findViewById(R.id.acceralate_1);
            final TextView accel_2 =  stand_by_floating_view.findViewById(R.id.acceralate_2);
            final TextView accel_3 =  stand_by_floating_view.findViewById(R.id.acceralate_3);
            accel_1.setText(sensorEvent.values[0]+"m/s2");
            accel_2.setText(sensorEvent.values[1]+"m/s2");
            accel_3.setText(sensorEvent.values[2]+"m/s2");

            vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
            current_accel_1 = sensorEvent.values[0];
            current_accel_2 = sensorEvent.values[1];
            current_accel_3 = sensorEvent.values[2];

            if(itIsNotFirstTime)
            {
                accel_1_diff = Math.abs(last_accel_1 - current_accel_1);
                accel_2_diff = Math.abs(last_accel_2 - current_accel_2);
                accel_3_diff = Math.abs(last_accel_3 - current_accel_3);

                if((accel_1_diff > shakethreshold && accel_2_diff > shakethreshold) || (accel_1_diff > shakethreshold && accel_3_diff > shakethreshold) || (accel_2_diff > shakethreshold && accel_3_diff > shakethreshold))
                {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                        vibrator.vibrate(VibrationEffect.createOneshot(500,VibrationEffect.DEFAULT_AMPLITUDE));
                    }
                    else
                    {
                        vibrator.vibrate(500);
                    }
                }

            }
            last_accel_1 = current_accel_1;
            last_accel_2 = current_accel_2;
            last_accel_3 = current_accel_3;
            itIsNotFirstTime = true;

        }

        @Override
        public void onAccuracyChanged(Sensor sensor,int accuracy) {

        }


        @Override
        protected void onResume() {
            super.onResume();

            if(isAccelerometerSensorAvailable)
                sensorManager.registerListener(this,accelerometerSensor,SensorManager.SENSOR_DELAY_norMAL);
        }

        @Override
        protected void onPause() {
            super.onPause();

            if(isAccelerometerSensorAvailable)
                sensorManager.unregisterListener(this);
        }
    }

我想知道有没有办法将振动器类归类到 foreground_emergency 类，我尝试粘贴它，但是振动器类中的 onResume 和 onPause 函数在扩展服务的 foreground_emergency 中无效

解决方法

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