public static MyAndroidScreenRecord GetInstance(Android.App.Activity activity = null)
{
lock (objLock)
{
if (s_Instance == null)
{
if (activity == null)
{
throw new Exception("MyScreenCapture.GetInstance 单例首次创建, 请传入 activity 参数");
}
s_Instance = new MyAndroidScreenRecord(activity);
}
return(s_Instance);
}
}
/// <summary>
/// 开始屏幕录制
/// </summary>
/// <param name="imageFileDateTime">时间参数 - 屏幕截图文件名命名规则所需</param>
/// <param name="dirName">屏幕截图保存文件夹名称</param>
public FileInfo StartRecord(DateTime?imageFileDateTime = null, string dirName = "")
{
if (s_IsRunning.Get() == true)
{
string msg = "正在进行录屏, 无法再多开一个";
System.Diagnostics.Debug.WriteLine(msg);
showToast(msg);
return(null);
}
s_IsRunning.Set(true);
mImageFileDateTime = imageFileDateTime;
mDirName = dirName;
Android.Content.Intent intent = mProjectionManager.CreateScreenCaptureIntent();
mAppActivity.StartActivityForResult(intent, s_ScreenRecord_Request_Code);
return(MyAndroidScreenRecord.GetScreenVideoFileInfo(mImageFileDateTime, dirName));
}
public FileInfo Get_ScreenVideoFileInfo(DateTime?imageFileDateTime = null, string dirName = "")
{
return(MyAndroidScreenRecord.GetScreenVideoFileInfo(imageFileDateTime, dirName));
}
private void initRecorder(int width, int height)
{
mMediaRecorder = new Android.Media.MediaRecorder();
// 遇到的坑 -- 用户权限没有赋予 Mic 会报错 "setAudioSource failed.", 故此处进行判断是否含有麦克风权限
if (Xamarin.Essentials.DeviceInfo.Version.Major >= 6)
{
Android.Content.PM.Permission permission = mAppActivity.CheckSelfPermission(Android.Manifest.Permission.RecordAudio);
if (permission == Android.Content.PM.Permission.Granted)
{
// mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mMediaRecorder.SetAudioSource(Android.Media.AudioSource.Mic);
}
}
// mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mMediaRecorder.SetVideoSource(Android.Media.VideoSource.Surface);
// mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mMediaRecorder.SetOutputFormat(Android.Media.OutputFormat.ThreeGpp);
// mediaRecorder.setOutputFile(getsaveDirectory() + System.currentTimeMillis() + ".mp4");
// 遇到的坑 -- 目录没有创建会报出 Java.IO.FileNotFoundException, 要先判断 Dir 是否存在, 不存在则进行创建
var mp4FileInfo = MyAndroidScreenRecord.GetScreenVideoFileInfo(mImageFileDateTime, mDirName);
if (mp4FileInfo.Directory.Exists == false)
{
mp4FileInfo.Directory.Create();
}
mMediaRecorder.SetOutputFile(mp4FileInfo.FullName);
// mediaRecorder.setVideoSize(width, height);
mMediaRecorder.SetVideoSize(width, height);
// mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
mMediaRecorder.SetVideoEncoder(Android.Media.VideoEncoder.H264);
// 遇到的坑 -- 用户权限没有赋予 Mic 会报错 "setAudioSource failed.", 故此处进行判断是否含有麦克风权限
if (Xamarin.Essentials.DeviceInfo.Version.Major >= 6)
{
Android.Content.PM.Permission permission = mAppActivity.CheckSelfPermission(Android.Manifest.Permission.RecordAudio);
if (permission == Android.Content.PM.Permission.Granted)
{
// mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mMediaRecorder.SetAudioEncoder(Android.Media.AudioEncoder.AmrNb);
}
}
// mediaRecorder.setVideoEncodingBitRate(5 * 1024 * 1024);
mMediaRecorder.SetVideoEncodingBitRate(5 * 1024 * 1024);
// mediaRecorder.setVideoFrameRate(30);
mMediaRecorder.SetVideoFrameRate(mDpi);
try
{
mMediaRecorder.Prepare();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("MyAndroidScreenRecord - initRecorder 捕获到错误");
System.Diagnostics.Debug.WriteLine(ex.GetFullInfo());
System.Diagnostics.Debugger.Break();
throw ex;
}
}