如何向SwipeView活动中的片段发送/接收附加信息

Question

我正在尝试使用Android中的Swipe with Tabs，我需要将一些变量传递给选项卡的片段，以显示自定义的内容，我的问题是，我总是将包绑定到0，所以我认为从片段容器页面发送额外的内容是错误的。这是片段的代码和包含选项卡的主片段页的代码。

public Fragment getItem(int position) {
        // getItem is called to instantiate the fragment for the given page.
        // Return a PlaceholderFragment (defined as a static inner class
        // below).

        prof = getIntent().getIntExtra("prof", 0);
        id = getIntent().getIntExtra("id", 0);
        bund = new Bundle();
        bund.putInt("prof", prof);
        bund.putInt("id", id);

        switch (position) {
            case 0:
                // Text fragment activity
                FragmentOne fragment = new FragmentOne();
                fragment.setArguments(bund);
                return fragment;
            case 1:
                // Gallery fragment activity
                FragmentTwo fragment2 = new FragmentTwo();
                fragment2.setArguments(bund);
                return fragment2;
            case 2:
                 //Audio fragment
                FragmentThree fragment3 = new FragmentThree();
                fragment3.setArguments(bund);
                return fragment3;
            }

            return null;
    }

当片段代码放在onCreateView方法中时

Bundle bundle = getArguments();
    if (bundle!=null){ 
    prof = bundle.getInt("prof");
     id = bundle.getInt("id");
    }

我可以读取进入片段容器中的参数，但是在片段中我不能读取它们，我忘记了什么？

Answer 1

您可以在这里尝试使用SharedPreference而不是Bundle：

在SharedPreference中实例化FragmentStatePagerAdapter：

SharedPreference mPref = mContext.getSharedPreferences("myPreference",
            Context.MODE_PRIVATE);

将prof和id存储到mPref：

public Fragment getItem(int position) {
    // getItem is called to instantiate the fragment for the given page.
    // Return a PlaceholderFragment (defined as a static inner class
    // below).

    prof = getIntent().getIntExtra("prof", 0);
    id = getIntent().getIntExtra("id", 0);
    // store value in mPref
    mPref.putInt("prof", prof);
    mPref.putInt("id", id);

    // commit changes
    mPref.commit();

switch (position) {
    case 0:
        // Text fragment activity
        FragmentOne fragment = new FragmentOne();

        return fragment;
    case 1:
        // Gallery fragment activity
        FragmentTwo fragment2 = new FragmentTwo();

        return fragment2;
    case 2:
         //Audio fragment
        FragmentThree fragment3 = new FragmentThree();

        return fragment3;
    }

    return null;
}

检索任何片段的onCreateView()中的值：

SharedPreference mPrefFrag = getActivity().getSharedPreferences("myPreference",
        Context.MODE_PRIVATE);    
int prof = mPrefFrag.getInt("prof",0);
int id = mPrefFrag.getInt("id",0);