CODEWITHSUNDEEP
androidxamarinxamarin.androidpopupmenu
nick_green
nick_green

Reputation: 1664

How to share code between activities in xamarin android

So I have some popup menu button in some activities. The problem is that in every activity I have to use the same code to initialize popup menu over and over again...

The code for initialization looks like this:

var button = FindViewById(Resource.Id.moreButton);

button.Click += (s, arg) =>
{
    PopupMenu menu = new PopupMenu(this, button);
    menu.Inflate(Resource.Menu.PopupMenu);
    menu.Show();

    menu.MenuItemClick += (s1, arg1) =>
    {
        switch (arg1.Item.TitleFormatted.ToString())
        {
            case "Profile":
                StartActivity(typeof(ProfileView));
                break;
            case "Prices":
                StartActivity(typeof(PricesView));
                break;
            case "Terms":
                StartActivity(typeof(TermsView));
                break;
            case "Privacy":
                StartActivity(typeof(PrivacyView));
                break;
        }
    };
};

So in every activity that has popup menu button, I have to use this code to make button work.... How could I share this code part through all the activities?

Upvotes: 0

Views: 167

Answers (1)

cvanbeek
cvanbeek

Reputation: 1961

I would create your own class that extends 'PopupMenu' and then add a method to initialize everything and display it. 

public class MyPopupMenu : PopupMenu 
{
    //May need to add constructors

    public void display()
    {
        this.Inflate(Resource.Menu.PopupMenu);
        this.Show();

        //May need to change EventArgs to a valid subclass of EventArgs
        this.MenuItemClicked += (object sender, EventArgs arg1) =>
        {
            switch (arg1.Item.TitleFormatted.ToString())
            {
                case "Profile":
                    break;
                case "Prices":
                    break;
                case "Terms":
                    break;
                case "Privacy":
                    break;
            }
        }
    }
}

Then you can shorten your code on each page to:

var button = FindViewById(Resource.Id.moreButton);

button.Click += (s, arg) => {
    PopupMenu menu = new PopupMenu(this, button); 
    menu.display();
};

Quick disclaimer, I hadn't had a chance to test this. Just my ideas.

Upvotes: 1

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