// 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 static FrameworkElement ConvertFormsToNative(Xamarin.Forms.View view, Rectangle size)
{
//var vRenderer = RendererFactory.GetRenderer (view);
if (Platform.GetRenderer(view) == null)
Platform.SetRenderer(view, Platform.CreateRenderer(view));
var vRenderer = Platform.GetRenderer(view);
view.Layout(new Rectangle(0, 0, size.Width, size.Height));
//vRenderer.ContainerElement.Arrange(new Rect(0, 0, size.Width, size.Height));
return vRenderer.ContainerElement;
}
public static ViewGroup ConvertFormsToNative(Xamarin.Forms.View view, Rectangle size)
{
//var vRenderer = RendererFactory.GetRenderer (view);
if (Platform.GetRenderer(view) == null)
Platform.SetRenderer(view, Platform.CreateRenderer(view));
var vRenderer = Platform.GetRenderer(view);
var viewGroup = vRenderer.ViewGroup;
vRenderer.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 IXFPopupCtrl CreateDialog(Xamarin.Forms.Page page, Xamarin.Forms.View content, bool cancelable)
{
CustomDialog dlg = null;
if (content != null)
{
var render = Convert(content, page);
if (render != null)
{
var size = content.GetSizeRequest(XFPopupConst.SCREEN_WIDTH, XFPopupConst.SCREEN_HEIGHT);
var width = (int)size.Request.Width;
var height = (int)size.Request.Height;
if (width > XFPopupConst.SCREEN_WIDTH)
{
width = (int)(XFPopupConst.SCREEN_WIDTH * 3 / 4);
}
if (height > (XFPopupConst.SCREEN_HEIGHT * 3 / 4))
{
height = (int)(XFPopupConst.SCREEN_HEIGHT * 3 / 4);
}
content.WidthRequest = width;
content.HeightRequest = height;
//important
content.Layout(new Rectangle(0, 0, width, height));
dlg = new CustomDialog(content, cancelable);
}
}
return dlg;
}
public void ShowTopNoti(Xamarin.Forms.Page page, Xamarin.Forms.View noti, int ttl = 1500)
{
if (noti != null && page != null) {
var render = Convert(noti, page);
if (render != null) {
nfloat width = XFPopupConst.SCREEN_WIDTH;
var size = noti.GetSizeRequest(XFPopupConst.SCREEN_WIDTH - 4, XFPopupConst.SCREEN_HEIGHT * 0.2f);
nfloat height = (int)size.Request.Height;
if (height > (XFPopupConst.SCREEN_HEIGHT * 0.2f))
{
height = (int)(XFPopupConst.SCREEN_HEIGHT * 0.2f);
}
//important
noti.Layout(new Xamarin.Forms.Rectangle(0, 0, width, height));
var win = new UIWindow(new CGRect(0,0,width,height));
win.WindowLevel = UIKit.UIWindowLevel.Alert;
var native = render as UIKit.UIView;
win.AddSubview (native);
win.Alpha = 0;
win.MakeKeyAndVisible ();
native.Frame = new CGRect(1, 0 , width - 2, 0) ;
win.Alpha = 1;
UIView.Animate (
duration: 1f,
delay: 0f,
options: UIViewAnimationOptions.TransitionNone,
animation: () => {
native.Frame = new CoreGraphics.CGRect (1, 20, width - 2, height - 2);
},
completion: () => {
UIView.Animate(
duration: ttl/1000,
delay: 0f,
options: UIViewAnimationOptions.CurveEaseInOut,
animation: () => { win.Alpha = 0; },
completion: () => {
native.RemoveFromSuperview();
native = null;
win.RemoveFromSuperview();
win = null;
}
);
}
);
}
}
}
public IXFPopupCtrl CreateDropDown(Xamarin.Forms.View anchor, Xamarin.Forms.View drop)
{
CustomPopup dlg = null;
//first try to get the PopupHolderRenderer
//first try to get the PopupHolderRenderer
if(anchor == null || drop == null){
return null;
}
var anchorRender = anchor.GetValue(RendererProperty) as UIView;
if (anchorRender == null) {
return null;
}
var render = Convert(drop, anchor);
if (render == null) {
return null;
}
if (render != null) {
var size = drop.GetSizeRequest(anchorRender.Bounds.Width, XFPopupConst.SCREEN_HEIGHT);
var width = anchorRender.Bounds.Width;
var height = (int)size.Request.Height;
if (height > (XFPopupConst.SCREEN_HEIGHT * 3/ 4))
{
height = (int)(XFPopupConst.SCREEN_HEIGHT * 3/ 4);
}
//important
drop.Layout(new Xamarin.Forms.Rectangle(0, 0, width - 2*padding, height));
var native = render as UIKit.UIView;
native.Frame = new CoreGraphics.CGRect (padding, padding, width - 2*padding, height);
dlg = new CustomPopup(native, true, width, height + 2*padding, ShowType.DropDown,anchorRender);
}
return dlg;
}
public IXFPopupCtrl CreateDialog(Page page, Xamarin.Forms.View content,bool cancelable)
{
CustomPopup dlg = null;
if (content != null) {
var render = Convert(content, page);
if (render != null) {
var size = content.GetSizeRequest(XFPopupConst.SCREEN_WIDTH, XFPopupConst.SCREEN_HEIGHT);
var width = (int)size.Request.Width;
var height = (int)size.Request.Height;
if (width > XFPopupConst.SCREEN_WIDTH)
{
width = (int)(XFPopupConst.SCREEN_WIDTH * 3 / 4);
}
if (height > (XFPopupConst.SCREEN_HEIGHT * 3/ 4))
{
height = (int)(XFPopupConst.SCREEN_HEIGHT * 3/ 4);
}
//important
content.Layout(new Xamarin.Forms.Rectangle(0, 0, width, height));
var native = render as UIKit.UIView;
native.Frame = new CoreGraphics.CGRect (padding, padding, width, height);
dlg = new CustomPopup(native,cancelable,width + 2*padding,height + 2*padding,ShowType.Dialog);
}
}
return dlg;
}
public IXFPopupCtrl CreateDialog(Page page, Xamarin.Forms.View content,bool cancelable)
{
CustomDialog dlg = null;
//first try to get the PopupHolderRenderer
if (content != null) {
var render = Convert(content, page);
if (render != null) {
var size = content.GetSizeRequest(XFPopupConst.SCREEN_WIDTH, XFPopupConst.SCREEN_HEIGHT);
var width = (int)size.Request.Width;
var height = (int)size.Request.Height;
if (width > XFPopupConst.SCREEN_WIDTH)
{
width = (int)(XFPopupConst.SCREEN_WIDTH * 3 / 4);
}
if (height > (XFPopupConst.SCREEN_HEIGHT * 3/ 4))
{
height = (int)(XFPopupConst.SCREEN_HEIGHT * 3/ 4);
}
//important
content.Layout(new Rectangle(0, 0, width, height));
float density = Forms.Context.Resources.DisplayMetrics.Density;
width = (int)(width * density);
height = (int)(height * density);
var native = render as Android.Views.View;
native.LayoutParameters = new ViewGroup.LayoutParams(width, height);
LinearLayout ll = new LinearLayout(Forms.Context);
ll.SetBackgroundResource(Resource.Layout.rounded_rectangle_bgr);
ll.LayoutParameters = new ViewGroup.LayoutParams(width + 4, height + 4);
ll.AddView(native);
dlg = new CustomDialog(ll,cancelable);
}
}
return dlg;
}
public IXFPopupCtrl CreateDropDown(Xamarin.Forms.View anchor, Xamarin.Forms.View drop)
{
CustomDropDown dropctr = null;
//get the renderer of anchor
if (anchor != null) {
var ar = anchor.GetValue(RendererProperty);
if (ar != null) {
var dropView = Convert(drop, anchor);
if (dropView == null) {
return null;
}
double w = (int)anchor.Width;
double h = XFPopupConst.SCREEN_HEIGHT/2;
drop.WidthRequest = w;
var size = drop.GetSizeRequest(w, XFPopupConst.SCREEN_HEIGHT / 2);
if (size.Request.Height < h) {
h = size.Request.Height;
}
drop.Layout(new Rectangle(0, 0, w, h));
float density = Forms.Context.Resources.DisplayMetrics.Density;
w = w * density;
h = h * density;
var native = dropView as Android.Views.View;
native.LayoutParameters = new ViewGroup.LayoutParams((int)w, (int)h);
dropctr = new CustomDropDown(ar as Android.Views.View, native, (int)w + 4, (int)h+10);
}
}
return dropctr;
}