Question

如何为处于禁用状态的条目添加click事件？

我尝试使用如下手势识别器：

  <Entry
            TextColor="Black"
            x:Name="phone">
        <Entry.GestureRecognizers>
            <TapGestureRecognizer
                Tapped="StartCall"
                NumberOfTapsRequired="1">
            </TapGestureRecognizer>
        </Entry.GestureRecognizers> 
    </Entry>

 void StartCall(object sender,EventArgs args)
    {
        DisplayAlert("Alert","Hi","ok");
    }

点击输入时，ui上没有显示任何警告。

提前致谢

Answer 1

将您的条目放在布局中，并为GestureRecognizers布局。 e.g

<StackLayout>
    <Entry
        Placeholder="Enter Phone Number"
        IsEnabled="False"
        TextColor="Black"
        x:Name="phone"/>
    <StackLayout.GestureRecognizers>
        <TapGestureRecognizer
            Tapped="StartCall"
            NumberOfTapsRequired="1">
        </TapGestureRecognizer>
    </StackLayout.GestureRecognizers>
</StackLayout>

Answer 2

正如@Diego Rafael Souza所说进入聚焦事件时，用户点击条目

将触发

<强> XAML：

<Entry Placeholder="Phone number" TextColor="Black" x:Name="phone" Focused="StartCall"/>

<强>的.cs：

 void StartCall(object sender, EventArgs args){
        DisplayAlert("Alert", "Hi", "ok");
    }

Answer 3

只需将按钮放在处理事件的布局（例如StackLayout）

中

<StackLayout>  
    <StackLayout.GestureRecognizers>
            <TapGestureRecognizer
                Tapped="StartCall">
            </TapGestureRecognizer>
    </StackLayout.GestureRecognizers> 
   <!-- InputTransparent="True" to avoid conflicts -->
    <Entry InputTransparent="True"
            TextColor="Black"
            x:Name="phone"/>
<StackLayout>

Xamarin表单：单击事件以进入禁用状态？

3 个答案: