Xamarin.forms Listview在iOS上滚动,但在Android上不滚动

Xamarin.forms Listview在iOS上滚动,但在Android上不滚动,xamarin.forms,xamarin.android,xamarin.ios,Xamarin.forms,Xamarin.android,Xamarin.ios,在iOS上运行良好,但在Android上不会滚动。你能不能检查一下我做错了什么,或者有什么想法可能导致这种情况,或者检查什么? 我尝试添加scrollview,添加heightRequest,并将verticalOptions更改为FillAndExpand,但似乎没有任何效果 <ContentView.Content> <AbsoluteLayout Margin="0,0,30,0"> <Entry

在iOS上运行良好,但在Android上不会滚动。你能不能检查一下我做错了什么,或者有什么想法可能导致这种情况,或者检查什么? 我尝试添加scrollview,添加heightRequest,并将verticalOptions更改为FillAndExpand,但似乎没有任何效果

<ContentView.Content>
        <AbsoluteLayout Margin="0,0,30,0">
            <Entry
                x:Name="searchBar"
                AbsoluteLayout.LayoutBounds="0,0,1,AutoSize"
                AbsoluteLayout.LayoutFlags="WidthProportional"
                BackgroundColor="White"
                HeightRequest="40"
                Placeholder="Enter sensor"
                TextChanged="SearchBar_OnTextChanged"
                TextColor="{DynamicResource RelogixDarkGray}"
                VerticalOptions="Center" />
            <ListView
                x:Name="dataListView"
                AbsoluteLayout.LayoutBounds="5,40,.98,.4"
                AbsoluteLayout.LayoutFlags="SizeProportional"
                BackgroundColor="White"
                CachingStrategy="RecycleElement"
                HasUnevenRows="True"
                IsVisible="False"
                ItemTapped="ListView_OnItemTapped">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ViewCell>

                            <StackLayout Margin="5" Padding="0">
                                <Label
                                    BackgroundColor="White"
                                    FontFamily="{StaticResource NormalFont}"
                                    FontSize="16"
                                    Text="{Binding .}"
                                    TextColor="#FF464859"
                                    VerticalOptions="Center"
                                    VerticalTextAlignment="Center" />
                            </StackLayout>

                        </ViewCell>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </AbsoluteLayout>

首先,我不知道您对
TextColor=“{DynamicResource RelogixDarkGray}”和
fontfamine=“{StaticResource NormalFont}”
使用了什么,所以我将其删除以进行测试

然后在
列表视图中设置
IsVisible=“False”
,如果将该值设置为False,则无法看到该值,运行时,我将其设置为True

您没有为您的
列表视图设置
项资源=“{Binding myModels}”
。你应该设置它,这是我的布局代码

<AbsoluteLayout Margin="0,0,30,0">
                <Entry
                x:Name="searchBar"
                AbsoluteLayout.LayoutBounds="0,0,1,AutoSize"
                AbsoluteLayout.LayoutFlags="WidthProportional"
                BackgroundColor="White"
                HeightRequest="40"
                Placeholder="Enter sensor"
                TextChanged="searchBar_TextChanged"

                VerticalOptions="Center" />
                <ListView
                    ItemsSource="{Binding myModels}"
                x:Name="dataListView"
                AbsoluteLayout.LayoutBounds="5,40,.98,.4"
                AbsoluteLayout.LayoutFlags="SizeProportional"
                BackgroundColor="White"
                CachingStrategy="RecycleElement"
                HasUnevenRows="True"
                IsVisible="True"
                ItemTapped="dataListView_ItemTapped">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <ViewCell>

                                <StackLayout Margin="5" Padding="0">
                                    <Label
                                    BackgroundColor="White"

                                    FontSize="16"
                                    Text="{Binding .}"
                                    TextColor="#FF464859"
                                    VerticalOptions="Center"
                                    VerticalTextAlignment="Center" />
                                </StackLayout>

                            </ViewCell>
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
            </AbsoluteLayout>
这里是MyModelView.cs

    public class MyModelView
    {
        public ObservableCollection<MyModel> myModels { get; set; }
        public MyModelView()
        {

            myModels = new ObservableCollection<MyModel>();
            myModels.Add(new MyModel() { Prop0="xxx",Prop1="xxx1",Prop2="xxxx2",Prop3=true,Prop4="xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
            myModels.Add(new MyModel() { Prop0 = "xxx", Prop1 = "xxx1", Prop2 = "xxxx2", Prop3 = true, Prop4 = "xxxx4" });
        }
    }
这里是运行GIF

如果我为
标签设置绑定值

<Label
                                    BackgroundColor="White"

                                    FontSize="16"
                                    Text="{Binding Prop0}"
                                    TextColor="#FF464859"
                                    VerticalOptions="Center"
                                    VerticalTextAlignment="Center" />

这里是运行GIF

    public class MyModel
    {
        public string Prop0 { get; set; }
        public string Prop1 { get; set; }
        public string Prop2 { get; set; }
        public bool Prop3 { get; set; }
        public string Prop4 { get; set; }
    }
<Label
                                    BackgroundColor="White"

                                    FontSize="16"
                                    Text="{Binding Prop0}"
                                    TextColor="#FF464859"
                                    VerticalOptions="Center"
                                    VerticalTextAlignment="Center" />