如何在活动之间传递对象 [英] How to pass Objects between activities
本文介绍了如何在活动之间传递对象的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个feed对象，其中填充了反序列化的json数据.我正在尝试在2个xamarin android活动之间传递feed对象.
I have a feed object, that is filled with deserialized json data. I am trying to pass a feed object between 2 xamarin android activities.
我该怎么做?
我知道putseriazable，但是我不确定如何实现.
I am aware of putseriazable but i'm not sure how to implement this.
public class Feed
{
public class Author
{
public int id { get; set; }
public string slug { get; set; }
public string name { get; set; }
public string first_name { get; set; }
public string last_name { get; set; }
public string nickname { get; set; }
public string url { get; set; }
public string description { get; set; }
}
public class CustomFields
{
public List<string> sno_headline { get; set; }
public List<string> sno_deck { get; set; }
public List<string> sno_format { get; set; }
public List<string> sno_longform_order { get; set; }
public List<string> sno_longform_title { get; set; }
public List<string> sno_sr_tag { get; set; }
public List<string> sno_sr_cat { get; set; }
public List<string> sno_sr_title { get; set; }
public List<string> sno_longform_main_title { get; set; }
public List<string> sno_rails_number { get; set; }
public List<string> sno_rails_writer { get; set; }
public List<string> sno_rails_type { get; set; }
public List<string> sno_rails_stories { get; set; }
public List<string> sno_longform_image { get; set; }
public List<string> sno_longform_image_master { get; set; }
public List<string> sno_teaser { get; set; }
public List<string> writer { get; set; }
public List<string> jobtitle { get; set; }
public List<string> featureimage { get; set; }
public List<string> video { get; set; }
public List<string> videographer { get; set; }
public List<string> videolocation { get; set; }
public List<string> related { get; set; }
public List<string> audio { get; set; }
public List<string> customlink { get; set; }
public List<string> story_sport { get; set; }
public List<string> teasertitle { get; set; }
public List<string> teaser { get; set; }
public List<string> grade { get; set; }
public List<string> showratings { get; set; }
public List<string> date { get; set; }
public List<string> ourscore { get; set; }
public List<string> theirscore { get; set; }
public List<string> opponent { get; set; }
public List<string> sport { get; set; }
}
public class Full
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Thumbnail
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Medium
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Large
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Carouselthumb
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Tsmediumblock
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Tsbigblock
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class Small
{
public string url { get; set; }
public int width { get; set; }
public int height { get; set; }
}
public class ThumbnailImages
{
public Full full { get; set; }
public Thumbnail thumbnail { get; set; }
public Medium medium { get; set; }
public Large large { get; set; }
public Carouselthumb carouselthumb { get; set; }
public Tsmediumblock tsmediumblock { get; set; }
public Tsbigblock tsbigblock { get; set; }
public Small small { get; set; }
}
public class Post
{
public int id { get; set; }
public string type { get; set; }
public string slug { get; set; }
public string url { get; set; }
public string status { get; set; }
public string title { get; set; }
public string title_plain { get; set; }
public string content { get; set; }
public string excerpt { get; set; }
public string date { get; set; }
public string modified { get; set; }
public List<object> categories { get; set; }
public List<object> tags { get; set; }
public Author author { get; set; }
public List<object> comments { get; set; }
public List<object> attachments { get; set; }
public int comment_count { get; set; }
public string comment_status { get; set; }
public CustomFields custom_fields { get; set; }
public string thumbnail { get; set; }
public string thumbnail_size { get; set; }
public ThumbnailImages thumbnail_images { get; set; }
}
public class Query
{
public bool ignore_sticky_posts { get; set; }
}
public class RootObject
{
public string status { get; set; }
public int count { get; set; }
public int count_total { get; set; }
public int pages { get; set; }
public List<Post> posts { get; set; }
public Query query { get; set; }
}
}
推荐答案
您可以使用Newtonsoft Json将类转换为json字符串，然后传递该字符串，然后在新活动中将其反序列化.
You could use Newtonsoft Json to convert the class to a json string, and pass the string, then deserialize it in the new activity.
确保您引用了Newtonsoft JSON
Make sure you reference Newtonsoft JSON
var MySerializedObject = JsonConvert.SerializeObject(MyComplexObject);
MyIntent.PutExtra("MyComplexObject", MySerializedObject);
然后，将其返回给对象...
Then, to get it back to the object...
var MyJsonString = Intent.GetStringExtra("MyComplexObject");
var MyObject = JsonConvert.DeserializeObject<ObjectType>(MyJsonString);
只需确保MyJsonString正是您所期望的并且在反序列化之前不为null，否则它可能引发异常.
Just be sure that MyJsonString is exactly what you're expecting and is not null before deserializing, otherwise it can throw an exception.
这篇关于如何在活动之间传递对象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！
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