如何使用Androidfragmentmanager传递变量 [英] How to pass variables with Android fragmentmanager

问题描述

我有以下简单的代码可以在内容框架中从一个片段切换到另一个片段.有没有一种简单的方法可以在以下代码中传递变量?

I have the following simple code to switch from one fragment to another in the content frame. Is there a simple way to pass variables in the following code?

FragmentManager fm = getActivity().getFragmentManager();

fm.beginTransaction().replace(R.id.content_frame, new TransactionDetailsFragment()).commit();

推荐答案

您可以使用Bundle:

You can use Bundle:

FragmentManager fm = getActivity().getFragmentManager();
Bundle arguments = new Bundle();
arguments.putInt("VALUE1", 0);
arguments.putInt("VALUE2", 100);

MyFragment myFragment = new Fragment();
fragment.setArguments(arguments);

fm.beginTransaction().replace(R.id.content_frame, myFragment).commit();

然后，您按以下方式检索:

Then, you retrieve as follows:

public class MyFragment extends Fragment {

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Bundle bundle = this.getArguments();
        if (bundle != null) {
            int value1 = bundle.getInt("VALUE1", -1);
            int value2 = bundle.getInt("VALUE2", -1);
        }
    }
}

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