pass from one fragment to an activity, to another fragment

fragmentAtoFragmentB.java

ANDROID
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=================================================================================================================================
FRAGMENT ADAPTER
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package dsbmobile.com.drokasa.liquidacion.adapter;

import android.content.Context;
import android.content.res.Resources;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

import org.apache.commons.net.bsd.RExecClient;

import dsbmobile.com.drokasa.R;
import dsbmobile.com.drokasa.liquidacion.fragment.ClientFragment;
import dsbmobile.com.drokasa.liquidacion.fragment.LiquidationFragment;
import dsbmobile.com.drokasa.liquidacion.fragment.TotalFragment;

public class FragmentPagerAdapter extends FragmentStatePagerAdapter {

    private String[] liqTabList;
    private Context context;
    final int PAGE_COUNT = 3;
    private ClientFragment clientFragment;
    private LiquidationFragment liquidationFragment;
    private TotalFragment totalFragment;

    public FragmentPagerAdapter(FragmentManager fm, Context context) {
        super(fm);
        this.context = context;
        liqTabList = context.getResources().getStringArray(R.array.liqTabArray);
    }

    public ClientFragment getClientFragment() {
        return clientFragment;
    }

    public LiquidationFragment getLiquidationFragment() {
        return liquidationFragment;
    }

    public TotalFragment getTotalFragment() {
        return totalFragment;
    }

    @Override
    public Fragment getItem(int position) {
            switch (position) {
                case 0:
                    if (liquidationFragment == null) {
                        liquidationFragment = LiquidationFragment.newInstance(position + 1);
                    }
                    return liquidationFragment;
                case 1:
                    if (clientFragment == null) {
                        clientFragment = ClientFragment.newInstance(position + 1);
                    }
                    return clientFragment;
                default :
                    if (totalFragment == null) {
                        totalFragment = TotalFragment.newInstance(position + 1);
                    }
                    return totalFragment;
            }

    }

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

    @Override
    public CharSequence getPageTitle(int position) {
        return liqTabList[position];
    }
}

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FRAGMENT DESTINE
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public void addClient(ClienteBean client){
        boolean found = false;

        for (ClienteBean clientVerify : clientAdapter.getClienteList()){
            if (client.getCodigo().equals(clientVerify.getCodigo())){
                found = true;
                break;
            }
        }
        if (found){
            Toast.makeText(getActivity(), "Este cliente ya ha sido agregado", Toast.LENGTH_SHORT ).show();
        }else{
            clientAdapter.addClient(client);
        }
    }
    
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  FRAGMENT ORIGIN
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 @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == ClientFragment.CLIENT_CODE && resultCode == RESULT_OK) {
            ClienteBean clienteBean = (ClienteBean) data.getSerializableExtra("client");
            LiquidationMenuActivity activity = (LiquidationMenuActivity) getActivity();
            activity.addClient(clienteBean);
        }
    }
    
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ACTIVITY
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 private FragmentPagerAdapter fragmentPagerAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.liquidation_menu_layout);
        ButterKnife.bind(this);
        preCargar();
    }

    private void preCargar() {
        fragmentPagerAdapter = new FragmentPagerAdapter(getSupportFragmentManager(), getBaseContext());
        viewpager.setAdapter(fragmentPagerAdapter);
        slidingTabs.setupWithViewPager(viewpager);
        tvHeaderDate.setText(getIntent().getStringExtra("dateLiq"));
    }

    public void addClient(ClienteBean client){
            fragmentPagerAdapter.getClientFragment().addClient(client);
            viewpager.setCurrentItem(1);
    }