Xamarin Forms Entry调用Completed事件 [英] Xamarin Forms Entry invoke Completed event

问题描述

我目前正在Xamarin Forms中的登录和注册页面上工作，将键盘的完成"按钮更改为下一步"并继续进行最后一个操作后，我不再在Android上收到Completed事件(在iOS上运行正常) .在自定义渲染器中，我可以捕获Control.EditorAction事件，该事件现在的行为与Completed事件相同，但是我似乎无法在条目本身上调用Completed事件.

I'm currently working on a login and registration page within Xamarin Forms and after changing the done button of the keyboard to next and go on the last one I am no longer receiving the Completed event on Android (working fine on iOS). In the custom renderer I can catch the Control.EditorAction event which now acts the same as the Completed event but I can't seem to invoke the Completed event on the entry itself.

在EntryRenderer中

Within the EntryRenderer

Control.EditorAction += (object sender, TextView.EditorActionEventArgsargs) =>
{
    if (entryExt.ReturnKeyType != ReturnKeyTypes.Next)
        entryExt.Unfocus();

    // Call all the methods attached to base_entry event handler Completed
    entryExt.InvokeCompleted();
};

在EntryExt内(直接扩展Entry)

And within the EntryExt (which extends the Entry directly)

public void InvokeCompleted()
{
    Completed?.Invoke(this, null);
}

但是由于错误，无法调用Completed事件

But the Completed event cannot be invoked due to the error

Error CS0070: The event `Xamarin.Forms.Entry.Completed' can only appear on the left hand side of += or -= when used outside of the type `Xamarin.Forms.Entry'

有没有一种方法可以调用Completed事件?我宁愿在视图中没有单独的事件处理程序.

Is there a way to invoke the Completed event? I'd rather not have a separate event handler for this within my views.

推荐答案

通过更改

entryExt.InvokeCompleted(); 

在EditorAction内

inside the EditorAction to

((IEntryController)Element).SendCompleted(); 

会将完成的事件发送回Entry基类.

which sends out the completed event back to the Entry base class.

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