我使用意图将数据从一个activity1传递给activity2。我在activity1中安慰了我的数据,我能够看到我发送给activity2的数据。但是,当我在activity2中接收数据时,我没有收到任何数据。我基本上遵循了使用意图的正确程序,但技巧不起作用。
问题:异步过程会影响意图的使用吗?
活性1
private async Task GetData()
{
var firebase = new FirebaseClient(FirebaseUrl);
var items = await firebase.Child("TableName").OnceAsync<Person>();
foreach (var item in items)
{
Person details = new Person();
details.Name = item.Object.Name;
person.Add(details);
}
void OnItemClick(object sender, int position)
{
Intent peaceHeroDetail = new Intent(this, typeof(PersonDetailActivity));
Intent.PutExtra(PersonDetailActivity.EXTRA_NAME, person[position].Name.ToString());
// the value of what is being sent is seen
Console.WriteLine("This is selected person " +person[position].Name);
}
}
活性2
public const string EXTRA_NAME = "Person Name";
string PName = Intent.GetStringExtra(EXTRA_NAME);
//it is empty
Console.WriteLine("This is the received detail "+ PName);
答案 0 :(得分:1)
由于您的评论显示这是一个错误,我删除了旧答案,并为您提供了此更新。
<强>更新强>:
请查看以下文章:Pass data between activities
在您的第一项活动中,您应该更改此内容:
Intent peaceHeroDetail = new Intent(this, typeof(PersonDetailActivity));
Intent.PutExtra(PersonDetailActivity.EXTRA_NAME, person[position].Name.ToString());
到此:
Intent peaceHeroDetail = new Intent(this, typeof(PersonDetailActivity));
peaceHeroDetail.PutExtra(PersonDetailActivity.EXTRA_NAME, person[position].Name.ToString());
然后使用:StartActivity(peaceHeroDetail);