如何防止 Xamarin Forms 条目中的文本建议？

Question

Is it possible to disable text suggestions for a Xamarin.Forms entry? I expected that this is done by IsTextPredictionEnabled = false , but this value seems to have no affect on the Entry, at least as of Xamarin Forms 5.0.0.2291.

I have created a test screen with the following code:

var entry1 = new Entry();
entry1.Text = "Default";
entry1.WidthRequest = 300;
entry1.IsSpellCheckEnabled = true;
entry1.IsTextPredictionEnabled = true;
absoluteLayout.Children.Add(entry1);

var entry2 = new Entry();
entry2.IsSpellCheckEnabled = false;
entry2.IsTextPredictionEnabled = false;
entry2.Text = "No SpellCheck/Prediction";
entry2.WidthRequest = 300;
entry2.Margin = new Thickness (0, 60, 0, 0);
absoluteLayout.Children.Add(entry2);

This produces the following behavior. Notice that both entries behave the same regardless of the IsSpellCheckEnabled or IsTextPredictionEnabled values.

According to the documentation here, this should work: https://learn.microsoft.com/en-us/do.net/api/xamarin.forms.entry.istextpredictionenabled?view=xamarin.forms

Also here: https://learn.microsoft.com/en-us/xamarin/xamarin.forms/user-interface/text/entry

Nothing came up in my searches to indicate that this is broken, so maybe I'm doing something wrong?

Answer 1

Use custom renderer and try to set InputTypes as TextVariationVisiblePassword,this works well on my side.Below is the code snippets for your reference.

        Content = new StackLayout
        {
            Children = {

            new MyEntry {
                Text = "No SpellCheck/Prediction",
                IsSpellCheckEnabled= false,
                IsTextPredictionEnabled = false,
                WidthRequest=300
                }
        },
            VerticalOptions = LayoutOptions.CenterAndExpand,
            HorizontalOptions = LayoutOptions.CenterAndExpand,
        };

MyRenderer class:

[assembly: ExportRenderer(typeof(Entry), typeof(MyRenderer))]
namespace AppTestEntry.Droid
{
class MyRenderer : EntryRenderer
{
    public MyRenderer(Context context) : base(context)
    {

    }
    protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
    {
        base.OnElementChanged(e);
        if (Control != null)
        {
            Control.InputType = Android.Text.InputTypes.TextVariationVisiblePassword;
        }
      }
    }
}    

Document for custom renderer for your reference: https://learn.microsoft.com/en-us/xamarin/xamarin.forms/app-fundamentals/custom-renderer/entry