刷新片段数据 [英] Refresh Fragment data

问题描述

我需要刷新片段中的oncreateview，以便将textview写入另一个片段中，当我单击保存按钮时，它返回片段开头的值，但不会更新它们

I need refresh oncreateview in fragment , for get textview writed in another fragment, when I click on save button, it returns the values ​​of the beginning of the fragment, it does not update them

片段保存:

public class Save extends Fragment implements View.OnClickListener {

public Save() {
        // Required empty public constructor
    }

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
  View v5 = inflater.inflate(R.layout.fragment_five, container, false);
  View v4 = inflater.inflate(R.layout.fragment_first, container, false);

save.setOnClickListener((View.OnClickListener) this);

 pla = (TextView) v4.findViewById(R.id.textView5);
 pla1 = (TextView) v4.findViewById(R.id.textView11);


        return v5;

}


@Override
    public void onClick(View v5) {

            String pem = pla.getText().toString();
           String count = pla1.getText().toString();


}

}

变量pem和count，返回null，我需要刷新片段以将新值写入此变量中

The variables pem and count , return null, i need refresh fragment for new value write text in this variables

PageAdapter:

PageAdapter:

 public PagerAdapter(@NonNull FragmentManager fm, int behavior, int tabs) {
        super(fm, behavior);
       // this.tabsNumber = tabs;
        this.tabsNumber = 5;
    }

    @NonNull
    @Override
public Fragment getItem(int position) {
        switch (position){
            case 0:
                return new Pla();
            case 1:
                return new Enf();
            case 2:
                return new Ben();
            case 3:
                return new Man();
            case 4:
                return new Save();
            default:
                return null;
        }
    }

类调用片段:

 adapter = new PagerAdapter(getSupportFragmentManager(), FragmentPagerAdapter.BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT,mTabLayout.getTabCount());

        pager.setAdapter(adapter);

        mTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                pager.setCurrentItem(tab.getPosition());
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {

            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

        pager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout));


    }

推荐答案

您可以重新加载当前片段

you can reload current fragment

Fragment frg = null;
frg = getSupportFragmentManager().findFragmentByTag("Your_Fragment_TAG");
final FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.detach(frg);
ft.attach(frg);
ft.commit();

这篇关于刷新片段数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！