/// <summary>
/// 지정된 주기로 포커싱합니다.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnTick(object sender, ElapsedEventArgs e)
{
if (_timer.Enabled)
{
_camera.AutoFocus(this);
}
}
public void OnAutoFocus(bool autoFocused, Camera camera)
{
if (isTakePhoto && autoFocused)
{
camera.TakePicture(new ShutterCallback(), null, new JpegCallback(this.cameraPreview));
}
else
{
camera.AutoFocus(new AutofocusCallBack(cameraPreview)); // TODO: Verify No Memory Leak On Failure
}
}
/**
* In addition to calling {@link Camera#startPreview()}, it also
* updates the preview display that could be changed in some situations
* @param holder the current {@link SurfaceHolder}
*/
private async void StartCameraPreview(ISurfaceHolder holder)
{
try
{
_camera.SetPreviewDisplay(holder);
_camera.StartPreview();
_camera.AutoFocus(null);
}
catch (Exception e)
{
Console.WriteLine($"startCameraPreview(): error starting camera preview, {e}");
}
}
private async void AutoFocus()
{
if (!(Element as VideoCameraPage).IsRecording)
{
if (!isFocus)
{
isFocus = true;
await Task.Run(() =>
{
camera.AutoFocus(this);
});
}
}
}
private async void AutoFocus()
{
if (!isFocus)
{
isFocus = true;
progressBar.Visibility = Android.Views.ViewStates.Visible;
capturePhotoButton.Visibility = Android.Views.ViewStates.Invisible;
await Task.Run(() =>
{
camera.AutoFocus(this);
});
}
else
{
}
}
/// <summary>
/// 지정된 주기로 자동 포커스를 설정합니다.
/// </summary>
/// <param name="camera">대상 카메라</param>
/// <param name="interval">자동 포커스 시간 간격(ms)</param>
public AutoFocusCallback(AndroidCamera camera, int interval)
{
_camera = camera;
_timer = new Timer()
{
Interval = interval,
Enabled = false,
AutoReset = true
};
_timer.Elapsed += OnTick;
_timer.Start();
this.Write($"AutoFocusCallback is created");
try
{
_camera.AutoFocus(this);
}
catch (Exception ex)
{
this.Write($"Camera AutoFocus setting exception : {ex.Message}");
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Window.AddFlags(WindowManagerFlags.Fullscreen); // 全画面表示に
RequestWindowFeature(WindowFeatures.NoTitle); // タイトルバーをなくす
disp = WindowManager.DefaultDisplay;
GetDisplaySize();
FrameLayout rootView = new FrameLayout(ApplicationContext);
SetContentView(rootView);
m_TextureView = new TextureView(ApplicationContext);
m_TextureView.SurfaceTextureListener = this;
m_TextureView.Touch += (sender, e) => {
if (e.Event.Action == MotionEventActions.Down)
{
StartX = e.Event.GetX();
StartY = e.Event.GetY();
}
if (e.Event.Action == MotionEventActions.Move)
{
var param = m_Camera.GetParameters();
var Zoom = param.Zoom;
if (e.Event.GetY() > (StartY + 50))
{
Zoom--;
StartY = e.Event.GetY();
}
else if (e.Event.GetY() < (StartY - 50))
{
Zoom++;
StartY = e.Event.GetY();
}
if (Zoom > param.MaxZoom)
{
Zoom = param.MaxZoom;
}
if (Zoom < 1)
{
Zoom = 1;
}
param.Zoom = Zoom;
m_Camera.SetParameters(param);
Console.WriteLine("StartY:" + StartY +
"\nNowY:" + e.Event.GetY() +
"\nZoom" + Zoom);
}
};
rootView.AddView(m_TextureView);
Button button = new Button(ApplicationContext);
button.Text = "撮影";
button.LayoutParameters = new ViewGroup.LayoutParams(200, 150);
button.Clickable = true;
button.SetWidth(200);
button.SetHeight(150);
if (!isLandScapeMode())
{
button.SetX((DisplayWidth / 2) - 100);
button.SetY(DisplayHeight - 300);
}
else
{
button.SetX((DisplayHeight / 2) - 100);
button.SetY(DisplayWidth - 150);
}
button.Touch += (sender, e) => {
if (e.Event.Action == MotionEventActions.Down)
{
isTakeEnabled = false;
m_Camera.AutoFocus(this);
}
if ((!isTakeEnabled) && (e.Event.Action == MotionEventActions.Up))
{
// 撮影中ではない & ボタンから指が離れた
if ((e.Event.RawX > button.GetX()) &&
(e.Event.RawX < (button.GetX() + ButtonWidth)) &&
(e.Event.RawY > button.GetY()) &&
(e.Event.RawY < (button.GetY() + ButtonHeight)))
{
// 指が離れた時にボタン上に指があった
isTakeEnabled = true;
m_Camera.AutoFocus(this);
}
Toast.MakeText(ApplicationContext,
"ButtonX:" + button.GetX() +
"\nButtonY:" + button.GetY() +
"\nGetX:" + e.Event.RawX +
"\nGetY:" + e.Event.RawY,
ToastLength.Short).Show();
}
};
rootView.AddView(button);
m_LocationManager = (LocationManager)GetSystemService(Context.LocationService);
}
void video_Touch(object sender, View.TouchEventArgs e)
{
if (e.Event.Action == MotionEventActions.Up && camera.GetParameters().SupportedFocusModes.Contains(Android.Hardware.Camera.Parameters.FocusModeAuto) && !focussing)
{
focussing = true;
try
{
camera.CancelAutoFocus();
}
catch
{
}
float x = e.Event.GetX();
float y = e.Event.GetY();
Rect touchRect = new Rect(
(int)(x - 70),
(int)(y - 70),
(int)(x + 70),
(int)(y + 70));
Rect targetFocusRect = new Rect(
touchRect.Left * 2000 / View.Width - 1000,
touchRect.Top * 2000 / View.Height - 1000,
touchRect.Right * 2000 / View.Width - 1000,
touchRect.Bottom * 2000 / View.Height - 1000);
List <Android.Hardware.Camera.Area> focusList = new List <Android.Hardware.Camera.Area>();
Android.Hardware.Camera.Area focusArea = new Android.Hardware.Camera.Area(targetFocusRect, 1000);
focusList.Add(focusArea);
Android.Hardware.Camera.Parameters param = camera.GetParameters();
param.FocusAreas = focusList;
param.MeteringAreas = focusList;
if (ViewCompat.GetLayoutDirection(focusring) == ViewCompat.LayoutDirectionRtl)
{
focusring.LayoutParameters = new FrameLayout.LayoutParams(focusring.LayoutParameters)
{
MarginStart = Resources.DisplayMetrics.WidthPixels - ((int)x + (int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 40, Resources.DisplayMetrics)), TopMargin = (int)y - (int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 40, Resources.DisplayMetrics)
};
}
else
{
focusring.LayoutParameters = new FrameLayout.LayoutParams(focusring.LayoutParameters)
{
MarginStart = (int)x - (int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 40, Resources.DisplayMetrics), TopMargin = (int)y - (int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 40, Resources.DisplayMetrics)
};
}
focusring.Visibility = ViewStates.Visible;
Animation scaleup = AnimationUtils.LoadAnimation(Context, Resource.Animation.scaleup);
scaleup.Interpolator = new DecelerateInterpolator();
scaleup.Duration = 300;
inner_ring.StartAnimation(scaleup);
Animation scaledown = AnimationUtils.LoadAnimation(Context, Resource.Animation.scaledown);
scaledown.Duration = 300;
scaledown.Interpolator = new DecelerateInterpolator();
outer_ring.StartAnimation(scaledown);
//View.SetHaveTouch(true, touchRect);
//drawingView.Invalidate();
// // Remove the square indicator after 1000 msec
try
{
camera.SetParameters(param);
camera.AutoFocus(this);
//drawingView.setHaveTouch(true, touchRect);
//drawingView.Invalidate();
// Remove the square indicator after 1000 msec
}
catch (Exception ef)
{
Console.WriteLine(ef);
focussing = false;
}
Handler handler = new Handler();
handler.PostDelayed(() => {
focusring.Visibility = ViewStates.Invisible;
}, 800);
}
}
private void AutofocusCalled(object sender, EventArgs e)
{
camera.AutoFocus(this);
}