<uses-permission android:name="android.permission.FOREGROUND_SERVICE" /> <service android:name=".ScreenService" android:enabled="true" android:exported="true" android:foregroundServiceType="mediaProjection"></service> 

import android.app.* import android.content.Context import android.content.Intent import android.graphics.BitmapFactory import android.hardware.display.DisplayManager import android.hardware.display.VirtualDisplay import android.media.CamcorderProfile import android.media.MediaRecorder import android.media.projection.MediaProjection import android.media.projection.MediaProjectionManager import android.os.Build import android.os.IBinder import android.util.DisplayMetrics import android.util.Log import android.view.WindowManager import androidx.core.app.NotificationCompat import java.io.IOException class ScreenService : Service() { 
      private var mContext:Context?=null private var projectionManager:MediaProjectionManager?=null private var mMediaProjection:MediaProjection?=null override fun onBind(intent: Intent): IBinder { 
      TODO("Return the communication channel to the service.") } override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int { 
      mContext = this var resultCode = intent?.getIntExtra("resultCode", -1) var path = intent?.getStringExtra("path") var resultData: Intent? = intent?.getParcelableExtra("data") startNotification(); projectionManager = getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager mMediaProjection = resultCode?.let { 
      resultData?.let { 
      it1 -> projectionManager?.getMediaProjection(it, it1) } } path?.let { 
      startRecording(it) } return super.onStartCommand(intent, flags, startId) } private var NOTIFICATION_CHANNEL_ID="id"; private var NOTIFICATION_CHANNEL_NAME="channel"; private var NOTIFICATION_CHANNEL_DESC="desc"; private fun startNotification() { 
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { 
      var notificationIntent = Intent(mContext, ScreenService::class.java) var pendingIntent: PendingIntent?=null pendingIntent = if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) { 
      PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE); } else { 
      PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT); } var notificationBuilder = mContext?.let { 
      NotificationCompat.Builder(it, NOTIFICATION_CHANNEL_ID) .setLargeIcon(BitmapFactory.decodeResource(mContext!!.resources, R.drawable.ic_launcher_foreground)) .setSmallIcon(R.drawable.ic_launcher_foreground) .setContentTitle("start record") .setContentText("=== start record ===") .setContentIntent(pendingIntent) }; var notification = notificationBuilder?.build(); var channel = NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT); channel.description = NOTIFICATION_CHANNEL_DESC; var notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager notificationManager.createNotificationChannel(channel) startForeground(1, notification); } } private var isScreenRecoding = false private var mMediaRecorder: MediaRecorder?=null private var mVirtualDisplay: VirtualDisplay? = null private fun startRecording(filePath:String) { 
      if (!isScreenRecoding){ 
      try { 
      // 创建 MediaRecorder 并设置参数 val metrics = DisplayMetrics() val windowManager: WindowManager = mContext?.getSystemService(WINDOW_SERVICE) as WindowManager windowManager.defaultDisplay.getMetrics(metrics) mMediaRecorder = MediaRecorder() mMediaRecorder?.setVideoSource(MediaRecorder.VideoSource.SURFACE) mMediaRecorder?.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4) mMediaRecorder?.setOutputFile(filePath) mMediaRecorder?.setVideoSize(metrics.widthPixels, metrics.heightPixels) mMediaRecorder?.setVideoEncoder(MediaRecorder.VideoEncoder.H264) mMediaRecorder?.setVideoEncodingBitRate(1920*1080 * 3) mMediaRecorder?.setVideoFrameRate(30) // 准备 MediaRecorder mMediaRecorder?.prepare() // 创建 VirtualDisplay 以获取屏幕内容 mVirtualDisplay = mMediaProjection?.createVirtualDisplay( "ScreenRecord", metrics.widthPixels, metrics.heightPixels, metrics.densityDpi, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mMediaRecorder?.surface, null, null ) // 开始录制 mMediaRecorder?.start() isScreenRecoding = true Log.i(ScreenUtil.TAG,"开始录屏 $filePath") } catch (e: IOException) { 
      Log.e(ScreenUtil.TAG, "录屏失败: " + e.message) e.printStackTrace() } } } public fun stopRecording() { 
      if (isScreenRecoding) { 
      try { 
      // 停止录制 mMediaRecorder?.stop() mMediaRecorder?.reset() mMediaRecorder?.release() mMediaRecorder = null // 停止 VirtualDisplay mVirtualDisplay?.release() // 停止 MediaProjection mMediaProjection?.stop() Log.i(ScreenUtil.TAG,"结束录屏") } catch (e: Exception) { 
      Log.e(ScreenUtil.TAG, "停止录屏失败: " + e.message) e.printStackTrace() } isScreenRecoding = false } } override fun onDestroy() { 
      stopRecording() super.onDestroy() } } 

private var mProjectionManager: MediaProjectionManager? = null var screenService:Intent?=null fun start(){ 
      mProjectionManager = getSystemService(Context.MEDIA_PROJECTION_SERVICE) as MediaProjectionManager // 请求录屏权限 startActivityForResult(mProjectionManager?.createScreenCaptureIntent(), 500); } fun stop(){ 
      stopService(screenService) } override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { 
      super.onActivityResult(requestCode, resultCode, data) if (requestCode == 500){ 
      screenService = Intent(mConext, ScreenService::class.java) screenService?.let { 
      it.putExtra("resultCode", resultCode); it.putExtra("data", data); it.putExtra("path", "screen.mp4"); startForegroundService(it) } } }