android - 将字符串从 FragmentActivity 传递到 Fragment

Question

我能够从 Activity 获取 FragmentActivity 中的 String。但是，如何将我的数据从 FragmentActivity 传递到 Fragments？不过，我可以在 FragmentActivity 中获取我的数据。

(我不想在 SharedPreferences 中存储数据。)

public class IndividualDetailsActivity extends IndividualBasePager {

    ViewPager mPager;
    IndividualDetailsBaseAdapter mAdapter;
    TitlePageIndicator mIndicator;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.individual_pager);
        mAdapter = new IndividualDetailsBaseAdapter(getSupportFragmentManager());
        mPager = (ViewPager) findViewById(R.id.pager);
        mPager.setOffscreenPageLimit(4);
        mPager.setAdapter(mAdapter);
        mIndicator = (TitlePageIndicator) findViewById(R.id.indicator);
        mIndicator.setViewPager(mPager);
        mIndicator.setCurrentItem(1);
        Intent i = getIntent();
        getSupportActionBar().setTitle(i.getStringExtra("name"));
    }
}

public class IndividualBasePager extends SherlockFragmentActivity {
    IndividualDetailsBaseAdapter mAdapter;
    ViewPager mPager;
    PageIndicator mIndicator;

    @Override
    protected void onCreate(Bundle arg0) {
        super.onCreate(arg0);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setTheme(R.style.Theme_Sherlock_Light_DarkActionBar);
        ActionBar actionbar = getSupportActionBar();
        actionbar.setDisplayHomeAsUpEnabled(true);
        setSupportProgressBarIndeterminateVisibility(true);
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            finish();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}


public class IndividualDetailsBaseAdapter extends FragmentPagerAdapter {
    protected static final String[] CONTENT = new String[] { "Comments",
            "Details", "Screens", "Tutorial" };

    private int mCount = CONTENT.length;

    public IndividualDetailsBaseAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        Log.e("PAGE", "Position " + position);
        switch (position) {
        case 0:
            return new CommentsFragment();
        case 1:
            return new DetailsFragment();
        case 2:
            return new CommentsFragment();
        case 3:
            return new CommentsFragment();
        }
        return null;
    }

    @Override
    public int getCount() {
        return mCount;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return IndividualDetailsBaseAdapter.CONTENT[position % CONTENT.length];
    }

    public void setCount(int count) {
        if (count > 0 && count <= 10) {
            mCount = count;
            notifyDataSetChanged();
        }
    }
}

Answer 1

在您的 fragment 中，您可以通过调用以下方法获取 FragmentActivity getActivity() 。在您的 FragmentActivity 中创建一个类似 getValue() 的方法，它将返回您所需的数据。