Question

我必须将我的第一个片段的变量的值传递给我的第三个片段，但是，我使用的方法仅转到第二个片段。有谁知道我怎么能为我的第三个片段传递变量的值??

我的第一个碎片：

package com.example.android.dungeonsanddragons;

import android.app.Activity;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View; 
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.AdapterView.OnItemSelectedListener;

public class Fragmente_Ficha_Parte01 extends Fragment {
    OnInformaçõesSetListener onInformaçõesSetListener;

@Nullable
@Override
   public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup    container, @Nullable Bundle savedInstanceState) {
       View view = inflater.inflate(R.layout.fragmente_ficha_parte01, container, false);
       return view;
   }

@Override
    public void onResume() {
        super.onResume();
        ...
        ...
        onInformaçõesSetListener.setInformações(Classe, Experiencia);

    }

    public interface OnInformaçõesSetListener {
        void setInformações(String classe, String experiencia);
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            onInformaçõesSetListener = (OnInformaçõesSetListener) activity;
        }   catch (Exception e) {}
    }

我的主要活动：

package com.example.android.dungeonsanddragons;

import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import java.util.List;

public class MainActivity extends AppCompatActivity implements Fragmente_Ficha_Parte01.OnInformaçõesSetListener {
   ...
   ...
@Override
    public void setInformações(String classe, String experiencia) {

        List<Fragment> allFragments = getSupportFragmentManager().getFragments();
        for (Fragment fragmento : allFragments) {
            if (fragmento instanceof Fragmente_Ficha_Parte02) {
                ((Fragmente_Ficha_Parte02) fragmento).updateInfo(classe, experiencia);
            }
        }
    }
}

我的第二篇片段：

package com.example.android.dungeonsanddragons;

import android.app.Activity;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class Fragmente_Ficha_Parte02 extends Fragment {
    String TextClasse = "", ExperienciaString;
    int Experiencia = 0, cont = 5;

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragmente_ficha_parte02, container, false);

    return view;
}

public void updateInfo(String classe, String experiencia) {
    TextClasse = classe;
    if (experiencia == null || experiencia.equals("")) {
        Experiencia = 0;
    } else {
        ExperienciaString = experiencia;
        Experiencia = Integer.valueOf(experiencia);
    }
    onResume();
}

@Override
public void onResume() {
    super.onResume();
...
...
}

我的第三篇片段：

package com.example.android.dungeonsanddragons;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class Fragmente_Ficha_Parte03 extends Fragment {
   String TextClasse = "";
    int Experiencia = 0;

    @Nullable
    @Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragmente_ficha_parte03, container, false);

    return view;
}
public void updateInfo(String classe, String experiencia) {
    TextClasse = classe;
    if (experiencia == null || experiencia.equals("")) {
        Experiencia = 0;
    } else {
        Experiencia = Integer.valueOf(experiencia);
    }
    onResume();
}

@Override
public void onResume() {
    super.onResume();

   final  TextView TextHabilidadeConjuração = (TextView) getActivity().findViewById(R.id.habilidadeConjuração);

    if(TextClasse != null){
        if(TextClasse.equals("Monge")){
            TextHabilidadeConjuração.setText("Monge");
        }
    }
}

}

在主要活动中，“List allFragments = getSupportFragmentManager（）。getFragments（）;”总是保持2的大小，我不知道怎么解决这个

我不能为一个以上的片段发送变量（Android Studio）

0 个答案: