Scrollview is not working in Xamarin Forms

问题

I have following layout in my xamarin forms application:

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
             xmlns:telerikPrimitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"
             x:Class="DMGMobile.UserDetailPage">
    <ContentPage.ToolbarItems>
        <ToolbarItem Name="Save" Icon="settings.png" Clicked="Save"></ToolbarItem>
    </ContentPage.ToolbarItems>

    <ContentPage.Content>
        <ScrollView 
            Orientation="Vertical" 
            VerticalScrollBarVisibility="Always"
            VerticalOptions="FillAndExpand">
            <StackLayout
                VerticalOptions="FillAndExpand"
                Padding="10,0,10,0">

                <Label 
                    Text="Name"/>
                <telerikInput:RadEntry 
                    x:Name="User_Name"
                    BackgroundColor="White" 
                    WatermarkText="Name"
                    TextColor="Black"
                    WatermarkTextColor="#C0C0C0">
                    <telerikInput:RadEntry.Padding>
                        <OnPlatform x:TypeArguments="Thickness">
                            <On Platform="Android,UWP" Value="10,10,0,10" />
                            <On Platform="iOS" Value="10,10,0,20" />
                        </OnPlatform>
                    </telerikInput:RadEntry.Padding>
                    <telerikInput:RadEntry.BorderStyle>
                        <telerikInput:BorderStyle 
                            CornerRadius="8"
                            BorderColor="#257cc1"
                            BorderThickness="1" />
                    </telerikInput:RadEntry.BorderStyle>
                </telerikInput:RadEntry>

                <Label 
                    Text="Surname"/>
                <telerikInput:RadEntry 
                    x:Name="User_Vorname"
                    BackgroundColor="White" 
                    WatermarkText="Surname"
                    TextColor="Black"
                    WatermarkTextColor="#C0C0C0">
                    <telerikInput:RadEntry.Padding>
                        <OnPlatform x:TypeArguments="Thickness">
                            <On Platform="Android,UWP" Value="10,10,0,10" />
                            <On Platform="iOS" Value="10,10,0,20" />
                        </OnPlatform>
                    </telerikInput:RadEntry.Padding>
                    <telerikInput:RadEntry.BorderStyle>
                        <telerikInput:BorderStyle 
                        CornerRadius="8"
                        BorderColor="#257cc1"
                        BorderThickness="1" />
                    </telerikInput:RadEntry.BorderStyle>
                </telerikInput:RadEntry>

                <Label 
                    Text="Login"/>
                <telerikInput:RadEntry 
                    x:Name="User_Login"
                    BackgroundColor="White" 
                    WatermarkText="Login"
                    TextColor="Black"
                    WatermarkTextColor="#C0C0C0"
                    TextChanged="User_Login_TextChanged">
                    <telerikInput:RadEntry.Padding>
                        <OnPlatform x:TypeArguments="Thickness">
                            <On Platform="Android,UWP" Value="10,10,0,10" />
                            <On Platform="iOS" Value="10,10,0,20" />
                        </OnPlatform>
                    </telerikInput:RadEntry.Padding>
                    <telerikInput:RadEntry.BorderStyle>
                        <telerikInput:BorderStyle 
                        CornerRadius="8"
                        BorderColor="#257cc1"
                        BorderThickness="1" />
                    </telerikInput:RadEntry.BorderStyle>
                </telerikInput:RadEntry>

                <Label 
                    Text="Pass"/>
                <telerikInput:RadEntry 
                    x:Name="User_Password"
                    BackgroundColor="Transparent" 
                    WatermarkText="Pass"
                    TextColor="Black"
                    WatermarkTextColor="#C0C0C0"
                    TextChanged="User_Login_TextChanged">
                    <telerikInput:RadEntry.Padding>
                        <OnPlatform x:TypeArguments="Thickness">
                            <On Platform="Android,UWP" Value="10,10,0,10" />
                            <On Platform="iOS" Value="10,10,0,20" />
                        </OnPlatform>
                    </telerikInput:RadEntry.Padding>
                    <telerikInput:RadEntry.BorderStyle>
                        <telerikInput:BorderStyle 
                        CornerRadius="8"
                        BorderColor="#257cc1"
                        BorderThickness="1" />
                    </telerikInput:RadEntry.BorderStyle>
                </telerikInput:RadEntry>

                <telerikPrimitives:RadCheckBox 
                    x:Name="User_IsAdmin" />
                <Label 
                    Text="Is admin}"/>

            </StackLayout>
        </ScrollView>
    </ContentPage.Content>
</ContentPage>

The problem is that ScrollView is not working. I can't even see vertical scrollbar although VerticalScrollBarVisibility is set to Always. The page looks nice without keyboard, but if keyboard shown then some inputs placed on the bottom of the page are hidden and I can't scroll to reach them.

Am I missing something obious here?

回答1:

If you are using Android, you can add this, after LoadApplication in MainActivity:

Xamarin.Forms.Application.Current.On<Xamarin.Forms.PlatformConfiguration.Android>().UseWindowSoftInputModeAdjust(WindowSoftInputModeAdjust.Resize);

来源：https://stackoverflow.com/questions/54309188/scrollview-is-not-working-in-xamarin-forms