1

我希望在创建（或加载页面）时在 viewPager 中的 FragmentStateAdapter 片段中设置我的 TextView 的 setText。我用 setOnPageChangeListener 进行测试，但它不起作用，所以你知道如何做到这一点。贝娄我的适配器以及我如何尝试使用 setOnPageChangeListener，（如果我可以在创建片段时初始化我的字段，那将非常好）。

测试：

.setOnPageChangeListener(new OnPageChangeListener() {
                @Override
                public void onPageScrollStateChanged(int arg0) {}

                @Override
                public void onPageScrolled(int arg0, float arg1, int arg2) {}

                @Override
                public void onPageSelected(int arg0) {
                    pdate=(TextView)myPager.getChildAt(arg0).findViewById(R.id.txtPagerDate);
                    pdate.setText(nextDay.get(arg0).get(KEY_DATE).toString());
                    pmaxmin=(TextView)myPager.getChildAt(arg0).findViewById(R.id.txtPagerMaxMin);
                    pmaxmin.setText("MAX: "+nextDay.get(arg0).get(KEY_HIGH).toString()+"° | Min: "+nextDay.get(arg0).get(KEY_LOW).toString()+"°");
                    pprecip=(TextView)myPager.getChildAt(arg0).findViewById(R.id.txtPagerPrecipitations);
                    pprecip.setText("Précipitation: "+nextDay.get(arg0).get(KEY_PRECIPAMOUNT).toString()+" mm");
                    pvent=(TextView)myPager.getChildAt(arg0).findViewById(R.id.txtPagerVent);
                    pvent.setText("Vent: "+nextDay.get(arg0).get(KEY_WINDSPEED).toString()+" Km/h - "+nextDay.get(arg0).get(KEY_WINDDIRECTION).toString());
                    pneige=(TextView)myPager.getChildAt(arg0).findViewById(R.id.txtPagerNeige);
                    pneige.setText("Neige: "+nextDay.get(arg0).get(KEY_SNOWAMOUNT).toString()+" mm");
                    pweatherIcn=(ImageView)myPager.getChildAt(arg0).findViewById(R.id.imgPagerTemps);
                    pweatherIcn.setImageDrawable(drawable2);
                }
            });

ViewPagerAdapterBis.java

package base.appliMeteo.basemeteo;

import java.util.ArrayList;
import java.util.HashMap;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

public class ViewPagerAdapterBis extends FragmentStatePagerAdapter {


    static ArrayList<HashMap<String, String>> nextDay=MainMeteo.nextDay;


    public ViewPagerAdapterBis(FragmentManager fm) {
        super(fm);
        // TODO Auto-generated constructor stub
    }
    @Override
    public Fragment getItem(int i) {
        Fragment fragment = new ViewPagerAdapterObject();
        Bundle args = new Bundle();
        // Our object is just an integer :-P
        args.putInt(ViewPagerAdapterObject.ARG_OBJECT, i + 1);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public int getCount() {
        return 7;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return "OBJECT " + (position + 1);
    }


}

ViewPageAdapterObject.java

package base.appliMeteo.basemeteo;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class ViewPagerAdapterObject extends Fragment {

    public static final String ARG_OBJECT = "object";

    @Override
    public View onCreateView(LayoutInflater inflater,
            ViewGroup container, Bundle savedInstanceState) {


        View rootView = inflater.inflate(R.layout.meteo_pager, container, false);
        return rootView;
    }
}
4

1 回答 1

2

这是我制定的解决方案，效果很好

ViewPagerAdapterBis.java

public class ViewPagerAdapterBis extends FragmentStatePagerAdapter {
    static int x;
    public ViewPagerAdapterBis(FragmentManager fm) {
        super(fm);
        // TODO Auto-generated constructor stub
    }
    @Override
    public Fragment getItem(int i) {
        x=i;
        Fragment fragment = new ViewPagerAdapterObject();
        Bundle args = new Bundle();
        // Our object is just an integer :-P
        args.putInt(ViewPagerAdapterObject.ARG_OBJECT, i + 1);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public int getCount() {
        return 7;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        if(object != null){
            return ((Fragment)object).getView() == view;
        }else{
            return false;
        }
    }



}

ViewPagerAdapterObject.java

public class ViewPagerAdapterObject extends Fragment {

    public static final String ARG_OBJECT = "object";

    TextView pdate;
    TextView pvent;
    TextView phumidite;
    TextView pmaxmin;
    TextView pprecip;
    TextView pneige;
    ImageView pweatherIcn;

    int x=ViewPagerAdapterBis.x;

    static final String KEY_DAY="day";
    static final String KEY_DAYTIME="daytime";
    static final String KEY_DATE="obsdate";
    static final String KEY_HIGH="hightemperature";
    static final String KEY_LOW="lowtemperature";
    static final String KEY_PRECIPAMOUNT="precipamount";
    static final String KEY_SNOWAMOUNT="snowamount";
    static final String KEY_WINDSPEED="windspeed";
    static final String KEY_WINDDIRECTION="winddirection";

    static ArrayList<HashMap<String, String>> nextDay=MainMeteo.nextDay;
    static ArrayList<HashMap<String, String>> nextDayJourney=MainMeteo.nextDayJourney;
    @Override
    public View onCreateView(LayoutInflater inflater,
            ViewGroup container, Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.meteo_pager, container, false);

        pdate=(TextView)rootView.findViewById(R.id.textPagerDateBis);
        pdate.setText(nextDay.get(x).get(KEY_DATE).toString());
        pmaxmin=(TextView)rootView.findViewById(R.id.txtPagerMaxMin);
        pmaxmin.setText("MAX: "+nextDayJourney.get(x).get(KEY_HIGH).toString()+"° | Min: "+nextDayJourney.get(x).get(KEY_LOW).toString()+"°");
        pprecip=(TextView)rootView.findViewById(R.id.txtPagerPrecipitations);
        pprecip.setText("Précipitation: "+nextDay.get(x).get(KEY_PRECIPAMOUNT).toString()+" mm");
        pvent=(TextView)rootView.findViewById(R.id.txtPagerVent);
        pvent.setText("Vent: "+nextDay.get(x).get(KEY_WINDSPEED).toString()+" Km/h - "+nextDay.get(x).get(KEY_WINDDIRECTION).toString());
        pneige=(TextView)rootView.findViewById(R.id.txtPagerNeige);
        pneige.setText("Neige: "+nextDay.get(x).get(KEY_SNOWAMOUNT).toString()+" mm");

        return rootView;
    }
}

我只是在我的适配器中获取项目编号并将其提供给我的片段以调用匹配值。

于 2013-04-16T11:41:44.040 回答