protected override void OnResume()
{
NowOriantation = DetectScreenOrientation();
m_Camera = AndroidCamera.Open();
m_Camera.SetAutoFocusMoveCallback(this);
// 写真のサイズを画面サイズの4倍(縦横2倍)に設定
var param = m_Camera.GetParameters();
param.SetPictureSize(DisplayHeight * 2, DisplayWidth * 2);
m_Camera.SetParameters(param);
m_LocationManager.RequestLocationUpdates(LocationManager.GpsProvider,
1,
0,
this);
base.OnResume();
}