Android服装：在FragmentGridPagerAdapter中运行时更新卡片textview

Question

我希望能够在使用FragmentGridPagerAdapter课程创建的片段中更新TextView的值，但我真的不知道如何实现这一点。< / p>

这是我打电话给我的班级创建片段的地方。

 final GridViewPager pager = (GridViewPager) findViewById(R.id.pager);
    pager.setAdapter(new SGridPagerAdapter(this, getFragmentManager(), data));
    DotsPageIndicator dotsPageIndicator = (DotsPageIndicator) findViewById(R.id.page_indicator);
    dotsPageIndicator.setPager(pager);

这是我的课程，扩展了FragmentGridPagerAdapter。

public class SGridPagerAdapter extends FragmentGridPagerAdapter {

String[] mData;
private final Context mContext;
private static final String TAG = SGridPagerAdapter.class.getSimpleName();


public SGridPagerAdapter(Context ctx, FragmentManager fm, String[] data) {
    super(fm);
    mData = data;
    mContext = ctx;
}

@Override
public Fragment getFragment(int row, int column) {
    Log.d(TAG, "row : " + row + "/columns : " + column);
    Fragment f = null;
    switch(column) {
        case 0 :
            f = cardFragment(R.string.welcome_title, R.string.welcome_text);
            break;
        case 1 :
            f = SelectionFragment.newInstance("secondFragment");
            break;
    }
    return f;
}

private Fragment cardFragment(int titleRes, int textRes) {
    Resources res = mContext.getResources();
    CardFragment fragment = CardFragment.create(res.getText(titleRes), res.getText(textRes));
    // Add some extra bottom margin to leave room for the page indicator
    //fragment.setCardMarginBottom(
    //        res.getDimensionPixelSize(R.dimen.card_margin_bottom));
    return fragment;
}


@Override
public int getRowCount() {
    return 1;//mData.length;
}

@Override
public int getColumnCount(int row) {
    return mData.length;
}
}