如何将数据从Activity发送到Fragment?(Android) [英] How to send data from Activity to Fragment?(Android)

问题描述

我想利用片段中的一些TextViews(cityField，updatedField).我知道在活动中使用它们会更容易，但是问题是由于要获取一些JSON数据，我不得不在Fragment上加入一些代码

I want to make use of some TextViews(cityField, updatedField) I have in my activity inside my fragment. I know it would have been easier to make use of them in the activity instead, but the problem is that I have to join in with some codes on Fragment due to getting some JSON data

我已经获得了活动代码的ID

Already I've gotten the id for the codes on activity

cityField = findViewById(R.id.textView4);
updatedField = findViewById(R.id.textView9);

现在我想在片段中使用它们所以问题是-可能吗?如果可能的话，怎么办?

Now I want to make use of them in my fragment So the question is - is it possible? if it's possible, how?

我已经在此网站上检查了一些答案-从活动在Android中进行分段如何使用捆绑包将数据从活动"传递到片段

Already, I checked some answers on this site - Send data from activity to fragment in Android How to pass data from Activity to Fragment using bundle

但是他们直接不能解决我的问题.

but they directly didn't solve my problem.

推荐答案

您可以像这样从片段中访问这些实例:

You can access these instances from your fragment like this:

字符串cityFieldFragment =(活动为YourActivity).cityField;

字符串updatedFieldFragment =(活动为YourActivity).updatedField;

如果我理解这一权利，则该片段存在于您的活动中，因此您可以从中访问数据，只需确保实例是公共的即可.

If I understood this right, the fragment lives in your activity, so you are able to access the data from it, just make sure that the instances are public.

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