public bool Stop()
{
StopScript();
if (!ServiceStarted)
{
return(false);
}
_virtualDisplay?.Release();
_virtualDisplay = null;
_imgListener?.Dispose();
_imgListener = null;
_imageReader?.Close();
_imageReader = null;
_mediaProjection?.Stop();
_mediaProjection = null;
ScreenshotManager.ReleaseMemory();
ImageLocator.ClearCache();
_windowManager.RemoveView(_layout);
ServiceStarted = false;
HideForegroundNotification();
return(true);
}
public void StartRecording()
{
var mManager = MainActivity.CurrentActivity.GetSystemService(Context.MediaProjectionService) as MediaProjectionManager;
mediaProjection = mManager.GetMediaProjection((int)MainActivity.ReturnResultFromPermission, MainActivity.ReturnDataFromPermission);
DisplayManager dManager = GetSystemService(Context.DisplayService) as DisplayManager;
var displayMetrics = new DisplayMetrics();
dManager.GetDisplay(0).GetMetrics(displayMetrics);
mediaRecorder = new MediaRecorder();
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetVideoSource(VideoSource.Surface);
var profile = CamcorderProfile.Get(CamcorderQuality.High);
profile.FileFormat = OutputFormat.Mpeg4;
profile.VideoFrameHeight = displayMetrics.HeightPixels;
profile.VideoFrameWidth = displayMetrics.WidthPixels;
mediaRecorder.SetProfile(profile);
mediaRecorder.SetOutputFile($"{Android.OS.Environment.ExternalStorageDirectory}/demovideo.mp4");
mediaRecorder.Prepare();
recordingDisplay = mediaProjection.CreateVirtualDisplay("Rec display", displayMetrics.WidthPixels, displayMetrics.HeightPixels,
(int)displayMetrics.Density, Android.Views.DisplayFlags.Round,
mediaRecorder.Surface, null, null);
mediaRecorder.Start();
}
/// <summary>
/// 初始化截屏
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="dpi"></param>
private static void InitVirtualDisplay(int width, int height, int dpi)
{
var rgbx = (ImageFormatType)Format.Rgbx8888;
_imageReader = ImageReader.NewInstance(width, height, rgbx, ImageCacheNum);
_virtualDisplay = _mediaProjection.CreateVirtualDisplay(Tag, width, height, dpi, DisplayFlags.Round, _imageReader.Surface, null, null);
}
private void SetUpVirtualDisplay()
{
Log.Info(TAG, "Setting up a VirtualDisplay: " + surfaceView.Width + "x" + surfaceView.Height + " (" + screenDensity + ")");
virtualDisplay = mediaProjection.CreateVirtualDisplay("ScreenCapture",
surfaceView.Width, surfaceView.Height, screenDensity,
(DisplayFlags)VirtualDisplayFlags.AutoMirror, surface, null, null);
buttonToggle.SetText(Resource.String.stop);
}
/// <summary>
/// 释放截图。
/// </summary>
public void TearDownMediaProjection()
{
_mediaProjection?.Stop();
_mediaProjection = null;
_virtualDisplay?.Release();
_virtualDisplay = null;
_imageReader?.Close();
_imageReader = null;
}
/// <summary>
/// 初始化截屏
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="dpi"></param>
private void InitVirtualDisplay(int width, int height, int dpi)
{
var rgbx = (ImageFormatType)Format.Rgba8888;
_imageReader = NewInstance(width, height, rgbx, ImageCacheNum);
_virtualDisplay = _mediaProjection.CreateVirtualDisplay(Tag, width, height, dpi, DisplayFlags.Round, _imageReader.Surface, null, null);
_imageReader.SetOnImageAvailableListener(this, _handler);
}
private void SetUpVirtualDisplay()
{
StartRecording();
virtualDisplay = mediaProjection.CreateVirtualDisplay("ScreenCapture",
surfaceView.Width, surfaceView.Height, screenDensity,
(DisplayFlags)VirtualDisplayFlags.AutoMirror, mMediaRecorder.Surface, null, null);
//buttonToggle.SetText(Resource.String.stop);
mMediaRecorder.Start();
}
private void StopScreenCapture()
{
if (virtualDisplay == null)
{
return;
}
virtualDisplay.Release();
virtualDisplay = null;
buttonToggle.SetText(Resource.String.start);
}
protected override void OnDestroy()
{
base.OnDestroy();
mMediaRecorder.Release();
mMediaRecorder.Dispose();
mMediaRecorder = null;
mediaProjection.Stop();
mediaProjection = null;
virtualDisplay.Release();
virtualDisplay = null;
}
private void SetUpVirtualDisplay()
{
try
{
StartRecordingObject();
virtualDisplay = mediaProjection.CreateVirtualDisplay("ScreenCapture",
WidthPixels, HeightPixels, DensityDpi,
(DisplayFlags)VirtualDisplayFlags.AutoMirror, mMediaRecorder.Surface, null, null);
mMediaRecorder.Start();
}
catch (Exception ex)
{
}
}
public MediaProjectionScreenshotService(MediaProjection MediaProjection, DisplayMetrics Metrics)
{
_mediaProjection = MediaProjection;
var screenDensity = (int)Metrics.DensityDpi;
var screenWidth = Metrics.WidthPixels;
var screenHeight = Metrics.HeightPixels;
_convertedMat = new Mat();
_colorCorrectedMat = new Mat();
_imageReader = ImageReader.NewInstance(screenWidth, screenHeight, (ImageFormatType)1, 2);
_virtualDisplay = _mediaProjection.CreateVirtualDisplay("ScreenCapture",
screenWidth, screenHeight, screenDensity,
DisplayFlags.None, _imageReader.Surface, null, null);
}
private void StopScreenCapture()
{
try
{
if (virtualDisplay == null)
{
return;
}
//buttonToggle.SetText(Resource.String.start);
mMediaRecorder.Stop();
mMediaRecorder.Release();
virtualDisplay.Release();
virtualDisplay = null;
}
catch (Exception e)
{
mMediaRecorder.Release();
virtualDisplay.Release();
virtualDisplay = null;
}
}
public static void ActivityResult(int requestCode, Result resultCode, Intent data)
{
if (requestCode == REQUEST_RECORD)
{
if (resultCode == Result.Ok)
{
mediaProjection = mediaProjectionManager.GetMediaProjection((int)resultCode, data);
mediaProjection.RegisterCallback(new MediaProjectionCallback(), null);
// DisplayManager.VirtualDisplayFlagAutoMirror,
virtualDisplay = mediaProjection.CreateVirtualDisplay("MainActivity", DISPLAY_WIDTH, DISPLAY_HEIGHT, (int)screenDensity,
DisplayFlags.Presentation, mediaRecorder.Surface, null, null);
mediaRecorder.Start();
}
else
{
System.Diagnostics.Debug.WriteLine("!!Result Code Is" + resultCode + "!!");
}
}
}
public void Dispose()
{
_convertedMat.Release();
_colorCorrectedMat.Release();
_convertedMat = _colorCorrectedMat = null;
_lastestPattern?.Dispose();
_lastestPattern = null;
_readBitmap?.Recycle();
_readBitmap = null;
_virtualDisplay?.Release();
_virtualDisplay = null;
_imageReader?.Close();
_imageReader = null;
_mediaProjection?.Stop();
_mediaProjection = null;
}
