public void ShowCamera(View view)
{
Log.Info(TAG, "Show camera button pressed. Checking permission.");
// Check if the Camera permission is already available.
if (PermissionUtil.HasSelfPermission(this, Manifest.Permission.Camera))
{
// Camera permissions is already available, show the camera preview.
Log.Info(TAG, "CAMERA permission has already been granted. Displaying camera preview.");
ShowCameraPreview();
}
else
{
// Camera permission has not been granted.
Log.Info(TAG, "CAMERA permission has NOT been granted. Requesting permission.");
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
if (ShouldShowRequestPermissionRationale(Manifest.Permission.Camera))
{
Log.Info(TAG, "Displaying camera permission rationale to provide additional context.");
Toast.MakeText(this, Resource.String.permission_camera_rationale, ToastLength.Short).Show();
}
// Request Camera permission.
RequestPermissions(new string[] { Manifest.Permission.Camera }, REQUEST_CAMERA);
}
}
public void ShowContacts(View v)
{
Log.Info(TAG, "Show contacts button pressed. Checking permissions.");
// Verify that all required contact permissions have been granted.
if (PermissionUtil.HasSelfPermission(this, PERMISSIONS_CONTACT))
{
// Contact permissions have been granted. Show the contacts fragment.
Log.Info(TAG, "Contact permissions have already been granted. Displaying contact details.");
ShowContactDetails();
}
else
{
// Contacts permissions have not been granted.
Log.Info(TAG, "Contact permissions has NOT been granted. Requesting permission.");
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
if (ShouldShowRequestPermissionRationale(Manifest.Permission.ReadContacts) ||
ShouldShowRequestPermissionRationale(Manifest.Permission.WriteContacts))
{
Log.Info(TAG, "Displaying contacts permission rationale to provide additional context.");
Toast.MakeText(this, Resource.String.permission_contacts_rationale, ToastLength.Short).Show();
}
// Request Contact permission.
RequestPermissions(PERMISSIONS_CONTACT, REQUEST_CONTACTS);
}
}
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);
}
public void ShowCamera(View view)
{
Log.Info(TAG, "Show camera button pressed. Checking permission.");
// Check if the Camera permission is already available.
if (ActivityCompat.CheckSelfPermission(this, Manifest.Permission.Camera) != (int)Permission.Granted)
{
// Camera permission has not been granted
RequestCameraPermission();
}
else
{
// Camera permissions is already available, show the camera preview.
Log.Info(TAG, "CAMERA permission has already been granted. Displaying camera preview.");
ShowCameraPreview();
}
}
public void ShowContacts(View v)
{
Log.Info(TAG, "Show contacts button pressed. Checking permissions.");
// Verify that all required contact permissions have been granted.
if (PermissionUtil.HasSelfPermission(this, PERMISSIONS_CONTACT))
{
Log.Info(TAG, "Contact permissions have already been granted. Displaying contact details.");
// Contact permissions have been granted. Show the contacts fragment.
ShowContactDetails();
}
else
{
Log.Info(TAG, "Contact permissions has NOT been granted. Requesting permission.");
// contact permissions has not been granted (read and write contacts). Request them.
RequestPermissions(PERMISSIONS_CONTACT, REQUEST_CONTACTS);
}
}
public void ShowCamera(View view)
{
Log.Info(TAG, "Show camera button pressed. Checking permission.");
// Check if the Camera permission is already available.
if (PermissionUtil.HasSelfPermission(this, Manifest.Permission.Camera))
{
Log.Info(TAG, "CAMERA permission has already been granted. Displaying camera preview.");
// Camera permissions is already available, show the camera preview.
ShowCameraPreview();
}
else
{
Log.Info(TAG, "CAMERA permission has NOT been granted. Requesting permission.");
// Camera permission has not been granted. Request it.
RequestPermissions(new string[] { Manifest.Permission.Camera }, REQUEST_CAMERA);
}
}
public void ShowContacts(View v)
{
Log.Info(TAG, "Show contacts button pressed. Checking permissions.");
// Verify that all required contact permissions have been granted.
if (ActivityCompat.CheckSelfPermission(this, Manifest.Permission.ReadContacts) != (int)Permission.Granted ||
ActivityCompat.CheckSelfPermission(this, Manifest.Permission.WriteContacts) != (int)Permission.Granted)
{
// Contacts permissions have not been granted.
Log.Info(TAG, "Contact permissions has NOT been granted. Requesting permissions.");
RequestContactsPermissions();
}
else
{
// Contact permissions have been granted. Show the contacts fragment.
Log.Info(TAG, "Contact permissions have already been granted. Displaying contact details.");
ShowContactDetails();
}
}
/**
* Callback received when a permissions request has been completed.
*/
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Permission[] grantResults)
{
if (requestCode == REQUEST_CAMERA)
{
// Received permission result for camera permission.
Log.Info(TAG, "Received response for Camera permission request.");
// Check if the only required permission has been granted
if (grantResults.Length == 1 && grantResults[0] == Permission.Granted)
{
// Camera permission has been granted, preview can be displayed
Log.Info(TAG, "CAMERA permission has now been granted. Showing preview.");
Snackbar.Make(layout, Resource.String.permission_available_camera, Snackbar.LengthShort).Show();
}
else
{
Log.Info(TAG, "CAMERA permission was NOT granted.");
Snackbar.Make(layout, Resource.String.permissions_not_granted, Snackbar.LengthShort).Show();
}
}
else if (requestCode == REQUEST_CONTACTS)
{
Log.Info(TAG, "Received response for contact permissions request.");
// We have requested multiple permissions for contacts, so all of them need to be
// checked.
if (PermissionUtil.VerifyPermissions(grantResults))
{
// All required permissions have been granted, display contacts fragment.
Snackbar.Make(layout, Resource.String.permission_available_contacts, Snackbar.LengthShort).Show();
}
else
{
Log.Info(TAG, "Contacts permissions were NOT granted.");
Snackbar.Make(layout, Resource.String.permissions_not_granted, Snackbar.LengthShort).Show();
}
}
else
{
base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
/**
* Requests the Contacts permissions.
* If the permission has been denied previously, a SnackBar will prompt the user to grant the
* permission, otherwise it is requested directly.
*/
void RequestContactsPermissions()
{
if (ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.ReadContacts) ||
ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.WriteContacts))
{
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
// For example, if the request has been denied previously.
Log.Info(TAG, "Displaying contacts permission rationale to provide additional context.");
// Display a SnackBar with an explanation and a button to trigger the request.
Snackbar.Make(layout, Resource.String.permission_contacts_rationale,
Snackbar.LengthIndefinite).SetAction(Resource.String.ok, new Action <View> (delegate(View obj) {
ActivityCompat.RequestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS);
})).Show();
}
else
{
// Contact permissions have not been granted yet. Request them directly.
ActivityCompat.RequestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS);
}
}
/**
* Requests the Camera permission.
* If the permission has been denied previously, a SnackBar will prompt the user to grant the
* permission, otherwise it is requested directly.
*/
void RequestCameraPermission()
{
Log.Info(TAG, "CAMERA permission has NOT been granted. Requesting permission.");
if (ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.Camera))
{
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
// For example if the user has previously denied the permission.
Log.Info(TAG, "Displaying camera permission rationale to provide additional context.");
Snackbar.Make(layout, Resource.String.permission_camera_rationale,
Snackbar.LengthIndefinite).SetAction(Resource.String.ok, new Action <View> (delegate(View obj) {
ActivityCompat.RequestPermissions(this, new String[] { Manifest.Permission.Camera }, REQUEST_CAMERA);
})).Show();
}
else
{
// Camera permission has not been granted yet. Request it directly.
ActivityCompat.RequestPermissions(this, new String[] { Manifest.Permission.Camera }, REQUEST_CAMERA);
}
}
public override void OnActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == REQUEST_MEDIA_PROJECTION)
{
if (resultCode != (int)Result.Ok)
{
Log.Info(TAG, "User cancelled");
Toast.MakeText(Activity, Resource.String.user_cancelled, ToastLength.Short).Show();
return;
}
if (Activity == null)
{
return;
}
Log.Info(TAG, "Starting screem capture");
this.resultCode = resultCode;
this.resultData = data;
SetUpMediaProjection();
SetUpVirtualDisplay();
}
}
private void StartScreenCapture()
{
if (surface == null || Activity == null)
{
return;
}
if (mediaProjection != null)
{
SetUpVirtualDisplay();
}
else if (resultCode != 0 && resultData != null)
{
SetUpMediaProjection();
SetUpVirtualDisplay();
}
else
{
Log.Info(TAG, "Requesting confirmation");
// This initiates a prompt for the user to confirm screen projection.
StartActivityForResult(mediaProjectionManager.CreateScreenCaptureIntent(), REQUEST_MEDIA_PROJECTION);
}
}
