保存文本时，我关闭活动 [英] Save text when I close activity

问题描述

我写的Andr​​oid应用程序在Xamarin并有篮子的活动。

I writing Android app in Xamarin and have basket activity.

我有篮子的活动时，我从产品列表中添加产品。

I have basket activity when I add products from list of products.

code添加属性

add.Click += delegate {
            var intent = new Intent (this, typeof(CartActivity));
            intent.PutExtra ("title", (string)(firstitem ["post_title"]));
            intent.PutExtra ("price", (string)(firstitem ["price"] + " грн"));
            intent.PutExtra ("weight", (string)(firstitem ["weight"] + "г"));
            StartActivity (intent);
        };

code接收的属性。

Code of receiving attributes

productname.Text = Intent.GetStringExtra("title");
        price.Text = Intent.GetStringExtra("price");
        weight.Text = Intent.GetStringExtra("weight");

但是，当我回去，我所有的产品附加值删除。我怎么可以节省产品在篮子里，当我切换到另一个活动？

But when I go back, all my added products deleted. How I can save products in basket when i switch to another activity?

推荐答案

您可以覆盖将OnPause 。它被称为每次活动 / 片段走进后台。

You can override OnPause. It is called every time the Activity/ Fragment went into background.

在code就应该是这样的：

In code it would look like this:

protected override void OnPause()
{
    base.OnPause();

    //Your code here
}

这篇关于保存文本时，我关闭活动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！