/// <summary>
/// 此方法在视图View已经创建后返回的，此时view 还没有添加到父级中。
/// 构造View后，计算view的大小，并且调用View的layout方法，完成布局
/// </summary>
/// <param name="view"></param>
/// <param name="savedInstanceState"></param>
public override void OnViewCreated(View view, Bundle savedInstanceState)
{
base.OnViewCreated(view, savedInstanceState);
var size = _contentView.Measure(WindowSize.X / Density, WindowSize.Y / Density).Request;
_contentView.Layout(new Xamarin.Forms.Rectangle(0, 0, size.Width, size.Height));
_dialogViewSize = new Size((int)Math.Ceiling(size.Width * Density)
, (int)Math.Ceiling(size.Height * Density));
}
// Code taken from
// http://www.michaelridland.com/xamarin/creating-native-view-xamarin-forms-viewpage/
public static ViewGroup ConvertFormsToNative(Xamarin.Forms.View view, Xamarin.Forms.Rectangle size)
{
var renderer = Platform.CreateRenderer(view);
var viewGroup = renderer.ViewGroup;
renderer.Tracker.UpdateLayout();
var layoutParams = new ViewGroup.LayoutParams((int)size.Width, (int)size.Height);
viewGroup.LayoutParameters = layoutParams;
view.Layout(size);
viewGroup.Layout(0, 0, (int)view.WidthRequest, (int)view.HeightRequest);
return(viewGroup);
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
if (_dialogElement != null)
{
_dialogElement.OnCreated(_iDialogMsg);
}
var size = new Xamarin.Forms.Size();
var droidView = _xfView.ConvertFormsToNative(_mContext);
_dialogSize = SetDialogSize(ref size);
_xfView.Layout(new Xamarin.Forms.Rectangle(Xamarin.Forms.Point.Zero,
size));
return(droidView);
}
private View ConvertFormsToNative(Xamarin.Forms.View view, Xamarin.Forms.Rectangle size)
{
viewRenderer = Platform.CreateRendererWithContext(view, Context);
var viewGroup = viewRenderer.View;
viewRenderer.Tracker.UpdateLayout();
if (view.HeightRequest > 0)
{
size.Height = view.HeightRequest;
}
var layoutParams = new ViewGroup.LayoutParams((int)(size.Width * Xamarin.Essentials.DeviceDisplay.MainDisplayInfo.Density), (int)(size.Height * Xamarin.Essentials.DeviceDisplay.MainDisplayInfo.Density));
viewGroup.LayoutParameters = layoutParams;
view.Layout(size);
viewGroup.Layout(0, 0, (int)view.Width, (int)view.Height);
return(viewGroup);
}
protected virtual void SetViewAndText(Toast toast)
{
if (_toastView != null)
{
//设定文本
var dialogEle = _toastView as IDialogElement;
dialogEle?.OnCreated(_dialogMsg);
var droidView = _toastView.ConvertFormsToNative(_mContext);
var winWidth = WindowSize.X / Density;
var winHeight = WindowSize.Y / Density;
_toastViewSize = _toastView.Measure(winWidth, winHeight).Request;
_toastView.Layout(new Xamarin.Forms.Rectangle(0, 0, _toastViewSize.Width, _toastViewSize.Height));
var lastView = WrapperViewAndControlSize(droidView);
toast.View = lastView;
}
else
{
toast.SetText(_dialogMsg.Msg);
}
}
