public int GetNavBarHeight(Context c)
{
int result = 0;
if (Build.VERSION.SdkInt >= BuildVersionCodes.IceCreamSandwich)
{
bool hasMenuKey = ViewConfiguration.Get(c).HasPermanentMenuKey;
bool hasBackKey = KeyCharacterMap.DeviceHasKey(Keycode.Back);
if (!hasMenuKey && !hasBackKey)
{
//The device has a navigation bar
Resources resources = c.Resources;
var orientation = Resources.Configuration.Orientation;
int resourceId;
if (IsTablet(c))
{
resourceId = resources.GetIdentifier(orientation == AContRes_O.Portrait ? "navigation_bar_height" : "navigation_bar_height_landscape", "dimen", "android");
}
else
{
resourceId = resources.GetIdentifier(orientation == AContRes_O.Portrait ? "navigation_bar_height" : "navigation_bar_width", "dimen", "android");
}
if (resourceId > 0)
{
return(Resources.GetDimensionPixelSize(resourceId));
}
}
}
return(result);
}
public bool HasSoftKeys()
{
bool hasSoftwareKeys;
var c = Android.App.Application.Context;
if (Build.VERSION.SdkInt >= Build.VERSION_CODES.JellyBeanMr1)
{
Display d = c.GetSystemService(Context.WindowService).JavaCast <IWindowManager>().DefaultDisplay;
DisplayMetrics realDisplayMetrics = new DisplayMetrics();
d.GetRealMetrics(realDisplayMetrics);
int realHeight = realDisplayMetrics.HeightPixels;
int realWidth = realDisplayMetrics.WidthPixels;
DisplayMetrics displayMetrics = new DisplayMetrics();
d.GetMetrics(displayMetrics);
int displayHeight = displayMetrics.HeightPixels;
int displayWidth = displayMetrics.WidthPixels;
BottomBarHeight = (realHeight - displayHeight);
hasSoftwareKeys = (realWidth - displayWidth) > 0 ||
(realHeight - displayHeight) > 0;
}
else
{
bool hasMenuKey = ViewConfiguration.Get(c).HasPermanentMenuKey;
bool hasBackKey = KeyCharacterMap.DeviceHasKey(Keycode.Back);
hasSoftwareKeys = !hasMenuKey && !hasBackKey;
}
return(hasSoftwareKeys);
}
public bool IsNavigationBarAvailable()
{
bool hasBackKey = KeyCharacterMap.DeviceHasKey(KeyEvent.KeyCodeFromString("KEYCODE_BACK"));
bool hasHomeKey = KeyCharacterMap.DeviceHasKey(KeyEvent.KeyCodeFromString("KEYCODE_HOME"));
if (hasBackKey && hasHomeKey)
{
// no navigation bar, unless it is enabled in the settings
return(false);
}
else
{
// 99% sure there's a navigation bar
return(true);
}
}