How to change button color when it is clicked in Xamarin

Question

I am quite new in xamarin and I am trying to add a click events to my buttons. So here are my 4 buttons:

<StackLayout HorizontalOptions="Center" VerticalOptions="Center">
                    <Button Text="Page 1" TextColor="#EEF2FF" FontSize="20" HorizontalOptions="Center" BackgroundColor="#FF5959" />
                </StackLayout>
                <StackLayout Grid.Column="1" HorizontalOptions="Center" VerticalOptions="Center">
                    <Button Text="Page 2" Clicked="Handle_Page" TextColor="#676FA3" FontSize="20" HorizontalOptions="Center" BackgroundColor="#EEF2FF"/>
                </StackLayout>
                <StackLayout Grid.Column="2" HorizontalOptions="Center" VerticalOptions="Center">
                    <Button Text="Page 3" TextColor="#676FA3" FontSize="20" HorizontalOptions="Center" BackgroundColor="#EEF2FF"/>
                </StackLayout>
                <StackLayout Grid.Column="3" HorizontalOptions="Center" VerticalOptions="Center">
                    <Button Text="Page 4" TextColor="#676FA3" FontSize="20" HorizontalOptions="Center" BackgroundColor="#EEF2FF"/>
                </StackLayout>

So the colour of the buttons are #EEF2FF but when I click on the button I want it to be changed to #FF5959. But if there is another button clicked already, then it should also change to the main colour, #EEF2FF. So we can cay synchronized click event.

I am quite new, so any help would be appreciated.

Jason · Accepted Answer · 2022-03-21 13:36:25Z

1

add a clicked handler

<Button Clicked="ButtonClicked" ... />

then in the handler

protected void ButtonClicked(object sender, EventArgs args)
{
  // set the other buttons back to the base color
  // you will need to assign each button an x:Name in xaml
  btn1.BackgroundColor = Color.FromHex("EEF2FF");
  ...
  btn10.BackgroundColor = Color.FromHex("EEF2FF");

  // then change the color of only the selected button
  var btn = (Button)sender;
  btn.BackgroundColor = Color.FromHex("FF5959");
}

edited Mar 21, 2022 at 13:36

answered Mar 21, 2022 at 13:07

Jason

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4 Comments

magic bean Over a year ago

Thanks for your answer but when I clicked one button, the other button stays clicked also, how can I fix it?

Jason Over a year ago

see my last edit

magic bean Over a year ago

Sorry I am quite new in xamarin but how can I give a name to the button?

Jason Over a year ago

<Button x:Name="btn1" ... />

Areg Nikoghosyan · Accepted Answer · 2022-03-21 13:10:07Z

1

protected override void OnCreate(Bundle savedInstanceState)
{   
    ScreenClickButton.Click += ChangeColorToRed;
}

private void ChangeColorToRed(object sender, EventArgs e)
{
    ScreenClickButton.SetBackgroundColor(color: Color.Red);
}

answered Mar 21, 2022 at 13:10

Areg Nikoghosyan

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1 Comment

the Tin Man Over a year ago

See "Explaining entirely code-based answers". While this might be technically correct, it doesn't explain why it solves the problem or should be the selected answer. We should educate along with helping solve the problem.

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