async Task PushModalInternal(Page modal, bool animated)
{
TaskCompletionSource <bool> tcs = null;
if (CurrentModalNavigationTask != null && !CurrentModalNavigationTask.IsCompleted)
{
var previousTask = CurrentModalNavigationTask;
tcs = new TaskCompletionSource <bool>();
CurrentModalNavigationTask = tcs.Task;
await previousTask;
}
var after = _internalNaviframe.NavigationStack.LastOrDefault();
NaviItem pushed = null;
if (animated || after == null)
{
pushed = _internalNaviframe.Push(Platform.GetOrCreateRenderer(modal).NativeView, modal.Title);
}
else
{
pushed = _internalNaviframe.InsertAfter(after, Platform.GetOrCreateRenderer(modal).NativeView, modal.Title);
}
pushed.TitleBarVisible = false;
bool shouldWait = animated && after != null;
await WaitForCompletion(shouldWait, tcs);
}
void OnPushRequested(object sender, NavigationRequestedEventArgs nre)
{
if (nre.Animated || _naviFrame.NavigationStack.Count == 0)
{
_naviItemMap[nre.Page] = _naviFrame.Push(Platform.GetOrCreateRenderer(nre.Page).NativeView, SpanTitle(nre.Page.Title));
_currentTaskSource = new TaskCompletionSource <bool>();
nre.Task = _currentTaskSource.Task;
// There is no TransitionFinished (AnimationFinished) event after the first Push
if (_naviFrame.NavigationStack.Count == 1)
{
CompleteCurrentNavigationTask();
}
}
else
{
_naviItemMap[nre.Page] = _naviFrame.InsertAfter(_naviFrame.NavigationStack.Last(), Platform.GetOrCreateRenderer(nre.Page).NativeView, SpanTitle(nre.Page.Title));
}
UpdateHasNavigationBar(nre.Page);
}
EvasObject CreatePage(Window parent)
{
Table table = new Table(parent);
table.Geometry = square;
table.Show();
Label label = new Label(parent)
{
Text = string.Format("<span color=#000000 font_size=15>{0} Page</span>", _sequence++),
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X, square.Y, square.Width, square.Height / 9)
};
Button push = new Button(parent)
{
Text = "<span color=#000000 font_size=15>Push</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X, square.Y + square.Height / 9, square.Width / 2, square.Height / 9)
};
Button pop = new Button(parent)
{
Text = "<span color=#000000 font_size=15>pop</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X + square.Width / 2, square.Y + square.Height / 9, square.Width / 2, square.Height / 9)
};
Button insertBeforeTop = new Button(parent)
{
Text = "<span color=#000000 font_size=15>insertBeforeTop</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X, square.Y + square.Height / 9 * 2, square.Width / 2, square.Height / 9)
};
Button insertAfterTop = new Button(parent)
{
Text = "<span color=#000000 font_size=15>insertAfterTop</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X + square.Width / 2, square.Y + square.Height / 9 * 2, square.Width / 2, square.Height / 9)
};
Button removeTop = new Button(parent)
{
Text = "<span color=#000000 font_size=15>removeTop</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X, square.Y + square.Height / 9 * 3, square.Width, square.Height / 9)
};
Button barChange = new Button(parent)
{
Text = "<span color=#000000 font_size=15>TitleBarColor Change</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X, square.Y + square.Height / 9 * 4, square.Width / 2, square.Height / 9)
};
Button barColorDefault = new Button(parent)
{
Text = "<span color=#000000 font_size=15>TitleBarColor - Default</span>",
WeightX = 1,
AlignmentX = -1,
BackgroundColor = Color.Black,
Geometry = new Rect(square.X + square.Width / 2, square.Y + square.Height / 9 * 4, square.Width / 2, square.Height / 9)
};
label.Show();
push.Show();
pop.Show();
insertBeforeTop.Show();
insertAfterTop.Show();
removeTop.Show();
barChange.Show();
barColorDefault.Show();
push.Clicked += (s, e) =>
{
_navi.Push(CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
pop.Clicked += (s, e) =>
{
var item = _navi.NavigationStack.LastOrDefault();
int nativePointer = (int)(IntPtr)(item.Content);
Console.WriteLine("----- Before Call _navi.Pop() {0:x} ", nativePointer);
_navi.Pop();
Console.WriteLine("----- After Call _navi.Pop() {0:x} ", nativePointer);
};
insertBeforeTop.Clicked += (s, e) =>
{
_navi.InsertBefore(_navi.NavigationStack.LastOrDefault(), CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
insertAfterTop.Clicked += (s, e) =>
{
_navi.InsertAfter(_navi.NavigationStack.LastOrDefault(), CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
removeTop.Clicked += (s, e) =>
{
var item = _navi.NavigationStack.LastOrDefault();
int nativePointer = (int)(IntPtr)(item.Content);
Console.WriteLine("----- Before Call NaviItem.Delete() {0:x} ", nativePointer);
item.Delete();
Console.WriteLine("----- After Call NaviItem.Delete() {0:x} ", nativePointer);
};
Random rand = new Random(DateTime.Now.Millisecond);
barChange.Clicked += (s, e) =>
{
int currentIndex = _navi.NavigationStack.Count - 1;
if (currentIndex >= 0)
{
_navi.NavigationStack[currentIndex].TitleBarBackgroundColor = Color.FromHex(string.Format("#{0:X8}", rand.Next()));
}
};
barColorDefault.Clicked += (s, e) =>
{
int currentIndex = _navi.NavigationStack.Count - 1;
if (currentIndex >= 0)
{
_navi.NavigationStack[currentIndex].TitleBarBackgroundColor = Color.Default;
}
};
table.Pack(label, 0, 0, 1, 1);
table.Pack(push, 0, 1, 1, 1);
table.Pack(pop, 1, 1, 1, 1);
table.Pack(insertBeforeTop, 0, 2, 1, 1);
table.Pack(insertAfterTop, 1, 2, 1, 1);
table.Pack(removeTop, 0, 3, 1, 1);
table.Pack(barChange, 0, 4, 1, 1);
table.Pack(barColorDefault, 1, 4, 1, 1);
return(table);
}
EvasObject CreatePage(Window parent)
{
Box box = new Box(parent);
box.Show();
Label label = new Label(parent)
{
Text = string.Format("{0} Page", _sequence++),
WeightX = 1,
AlignmentX = -1,
};
Button push = new Button(parent)
{
Text = "Push",
WeightX = 1,
AlignmentX = -1,
};
Button pop = new Button(parent)
{
Text = "pop",
WeightX = 1,
AlignmentX = -1,
};
Button insertBeforeTop = new Button(parent)
{
Text = "insertBeforeTop",
WeightX = 1,
AlignmentX = -1,
};
Button insertAfterTop = new Button(parent)
{
Text = "insertAfterTop",
WeightX = 1,
AlignmentX = -1,
};
Button removeTop = new Button(parent)
{
Text = "removeTop",
WeightX = 1,
AlignmentX = -1,
};
Button barChange = new Button(parent)
{
Text = "TitleBarColor Change",
WeightX = 1,
AlignmentX = -1,
};
Button barColorDefault = new Button(parent)
{
Text = "TitleBarColor - Default",
WeightX = 1,
AlignmentX = -1,
};
label.Show();
push.Show();
pop.Show();
insertBeforeTop.Show();
insertAfterTop.Show();
removeTop.Show();
barChange.Show();
barColorDefault.Show();
push.Clicked += (s, e) =>
{
_navi.Push(CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
pop.Clicked += (s, e) =>
{
var item = _navi.NavigationStack.LastOrDefault();
int nativePointer = (int)(IntPtr)(item.Content);
Console.WriteLine("----- Before Call _navi.Pop() {0:x} ", nativePointer);
_navi.Pop();
Console.WriteLine("----- After Call _navi.Pop() {0:x} ", nativePointer);
};
insertBeforeTop.Clicked += (s, e) =>
{
_navi.InsertBefore(_navi.NavigationStack.LastOrDefault(), CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
insertAfterTop.Clicked += (s, e) =>
{
_navi.InsertAfter(_navi.NavigationStack.LastOrDefault(), CreatePage(parent), string.Format("{0} Page", _sequence - 1));
};
removeTop.Clicked += (s, e) =>
{
var item = _navi.NavigationStack.LastOrDefault();
int nativePointer = (int)(IntPtr)(item.Content);
Console.WriteLine("----- Before Call NaviItem.Delete() {0:x} ", nativePointer);
item.Delete();
Console.WriteLine("----- After Call NaviItem.Delete() {0:x} ", nativePointer);
};
Random rand = new Random(DateTime.Now.Millisecond);
barChange.Clicked += (s, e) =>
{
int currentIndex = _navi.NavigationStack.Count - 1;
if (currentIndex >= 0)
{
_navi.NavigationStack[currentIndex].TitleBarBackgroundColor = Color.FromHex(string.Format("#{0:X8}", rand.Next()));
}
};
barColorDefault.Clicked += (s, e) =>
{
int currentIndex = _navi.NavigationStack.Count - 1;
if (currentIndex >= 0)
{
_navi.NavigationStack[currentIndex].TitleBarBackgroundColor = Color.Default;
}
};
box.PackEnd(label);
box.PackEnd(push);
box.PackEnd(pop);
box.PackEnd(insertBeforeTop);
box.PackEnd(insertAfterTop);
box.PackEnd(removeTop);
box.PackEnd(barChange);
box.PackEnd(barColorDefault);
return(box);
}
