如何在 Xamarin Forms 中按下按钮时关闭键盘 [英] How to dismiss keyboard on button press in Xamarin Forms

问题描述

经过多次寻找，我找到了一种方法，可以在 Xamarin Forms 中的按钮按下时隐藏键盘，适用于 iOS 案例.所以在下面分享.

After much hunting I worked out a way to hide the keyboard on a button press in Xamarin Forms, for the iOS case. So it's shared below.

如果有人可以改进它，或者分享 Android 方面的解决方案，那就太好了.

If anyone can improve it, or share a solution for the Android side, that would be great.

推荐答案

我觉得这很有用:

https://forums.xamarin.com/discussion/comment/172077#Comment_172077

界面:

public interface IKeyboardHelper
{
    void HideKeyboard();
}

iOS:

public class iOSKeyboardHelper : IKeyboardHelper
{
    public void HideKeyboard()
    {
        UIApplication.SharedApplication.KeyWindow.EndEditing(true);
    }
}

机器人:

public class DroidKeyboardHelper : IKeyboardHelper
{
    public void HideKeyboard()
    {
        var context = Forms.Context;
        var inputMethodManager = context.GetSystemService(Context.InputMethodService) as InputMethodManager;
        if (inputMethodManager != null && context is Activity)
        {
            var activity = context as Activity;
            var token = activity.CurrentFocus?.WindowToken;
            inputMethodManager.HideSoftInputFromWindow(token, HideSoftInputFlags.None);

            activity.Window.DecorView.ClearFocus();
        }
    }
}

在 Xamarin 表单中的使用:

DependencyService.Get<IKeyboardHelper>().HideKeyboard();

这篇关于如何在 Xamarin Forms 中按下按钮时关闭键盘的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！