Solucionado
Caros, nao consigo resolver o problema abaixo:
System.InvalidOperationException: Master and Detail must be set before adding MasterDetailPage to a container
Obs.: Estou chamando a MasterPage de uma pagina de Login.
void Handle_Clicked(object sender, System.EventArgs e)
{
var masterDetail = new MenuPage();
var navigationPage = new NavigationPage(masterDetail);
Application.Current.MainPage = navigationPage;
}
Voce precisa jogar a sua MasterDetailPage no Application.Current.MainPage
e não um navigationPage
Ja tentei isso, tb não funcionou, acho que falta algo no meu Xaml.
<?xml version="1.0" encoding="utf-8" ?>
<MasterDetailPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="TestDrive.MenuPage">
<MasterDetailPage.Master>
<ContentPage Title="Menu" BackgroundColor="#e8e8e8">
<StackLayout Orientation="Vertical">
<StackLayout BackgroundColor="#e74c3c" HeightRequest="75">
<Label Text="EcoMotive Europe" FontSize="20"
VerticalOptions="CenterAndExpand"
TextColor="White"
HorizontalOptions="Center"/>
</StackLayout>
<ListView x:Name="navigationDrawerList" RowHeight="60"
SeparatorVisibility="None" BackgroundColor="#e8e8e8"
ItemSelected="OnMenuItemSelected">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout VerticalOptions="FillAndExpand"
Orientation="Horizontal"
Padding="20,10,0,10" Spacing="20">
<Image Source="{Binding Icon}"
WidthRequest="40" HeightRequest="40"
VerticalOptions="Center" />
<Label Text="{Binding Titulo}"
FontSize="Medium"
VerticalOptions="Center"
TextColor="Black"/>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</ContentPage>
</MasterDetailPage.Master>
<MasterDetailPage.Detail>
<NavigationPage>
<x:Arguments>
<ContentPage Title="Tste"></ContentPage>
</x:Arguments>
</NavigationPage>
</MasterDetailPage.Detail>
</MasterDetailPage>Nao funciona se voce fizer:
Application.Current.MainPage = new MenuPage();???
Isso, nao funciona. Parece que falta algo relacionado a propriedade Master e Detail no xaml. Vc saberia dizer?
Application.Current.MainPage = new MenuPage();Só peguei seu codigo e fiz :
Application.Current.MainPage = new MenuPage();Ps: Removi o ItemSelected pq nao quis implementar o metodo, mas foi só isso que mudei e foi.
ItemSelected="OnMenuItemSelected"Então, mudei o código, faltava definir a propriedade Master
Certo =) Qualquer duvida, só postar de novo =D Bom fim de semana =D