发送字符串从活动到另一个活动一个片段 [英] Send String from an Activity to a Fragment of another Activity

问题描述

我有两个活动（A和B）和一个片f 该片段F被包含在b活动 我想从活动一字符串发送到片f 如何才能做到这一点？ 谢谢！

I have two Activities (A and B) and a Fragment F The Fragment F is contained in the Activity B I'd like to send Strings from Activity A to Fragment F How can do that? Thanks!

推荐答案

首先，你实际上发送串到你的活动B.例如：

First, you'll actually send that string to your activity B. For example:

Intent intent = new Intent(this, YourActivityClass.class);
intent.putExtra("myString", "this is your string");
startActivity(intent);

然后再读取该字符串从你的活动B和执行片段交易之前注入到您的片段。例如：

then later read that string from your activity B and inject into your fragment before executing the fragment-transaction. For example:

Bundle args = new Bundle();
args.putString("myString", getIntent().getExtras().getString("myString"))
yourFragment.setArguments(args);

后来，使用 getArguments（）在你的片段来检索包。

Later, use getArguments() in your fragment to retrieve that bundle.

或者，使用下面的在你的片段直接访问该活动意图并获取您需要的值：

Or alternatively, use the following in your fragment to directly access the activity intent and fetch your required value:

String str = getActivity().getIntent().getStringExtra("myString");

有关详细信息，请参阅这。

For more info, read this.

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