往fragment传值参考代码

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BaseFragment

import java.io.ByteArrayOutputStream;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import com.google.gson.Gson;import android.os.Bundle;import android.os.Handler;import android.support.v4.app.Fragment;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;public abstract class BaseFragment extends Fragment {    protected static final String TAG = "BaseFragment";    protected static final int SUCCESS = 0;    private View view;    private ListView listView;    Handler handler = new Handler() {        public void handleMessage(android.os.Message msg) {            if (msg.what == SUCCESS) {                String json = (String) msg.obj;                Gson gson = new Gson();                final WeiChatInfo fromJson = gson.fromJson(json,                        WeiChatInfo.class);                listView.setAdapter(new BaseAdapter() {                    @Override                    public View getView(int position, View convertView,                            ViewGroup parent) {                        View view2 = View.inflate(getActivity(),                                R.layout.lv_item, null);                        ImageView lv_image = (ImageView) view2                                .findViewById(R.id.lv_image);                        TextView lv_title = (TextView) view2                                .findViewById(R.id.lv_title);                        lv_title.setText(fromJson.result.list.get(position).title);                        ImageUtils imageUtils = new ImageUtils();                        imageUtils.getImage(                                fromJson.result.list.get(position).firstImg,                                lv_image);                        return view2;                    }                    @Override                    public long getItemId(int position) {                        return 0;                    }                    @Override                    public Object getItem(int position) {                        return null;                    }                    @Override                    public int getCount() {                        // TODO Auto-generated method stub                        return fromJson.result.list.size();                    }                });            }        };    };    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,            Bundle savedInstanceState) {        view = inflater.inflate(R.layout.list_layout, container, false);        listView = (ListView) view.findViewById(R.id.listView);        return view;    }    @Override    public void onActivityCreated(Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        // 请求网络数据        getData();    }    private void getData() {        new Thread() {            public void run() {                int pno = getPno();                String path = "http://v.juhe.cn/weixin/query?key=0917c812f187b92e025c9b7c2d4e59b5&pno="                        + pno;                try {                    URL url = new URL(path);                    HttpURLConnection httpURLConnection = (HttpURLConnection) url                            .openConnection();                    httpURLConnection.setConnectTimeout(5000);                    httpURLConnection.setReadTimeout(5000);                    httpURLConnection.setRequestMethod("GET");                    int responseCode = httpURLConnection.getResponseCode();                    if (responseCode == 200) {                        InputStream inputStream = httpURLConnection                                .getInputStream();                        // 读出来---String                        ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();                        byte[] buffer = new byte[1024];                        int len = 0;                        while ((len = inputStream.read(buffer)) != -1) {                            arrayOutputStream.write(buffer, 0, len);                        }                        String string = arrayOutputStream.toString();                        // 解析json                        Log.i(TAG, "string:" + string);                        handler.obtainMessage(SUCCESS, string).sendToTarget();                    }                } catch (Exception e) {                    e.printStackTrace();                }            };        }.start();    }    public abstract int getPno();}

fragment1

import android.annotation.SuppressLint;import android.os.Bundle;import android.support.v4.app.Fragment;public class Fragment0 extends BaseFragment {    private int pno;    @Override    public int getPno() {        // 返回        return pno;    }    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // 获取参数        Bundle arguments = getArguments();        pno = (int) arguments.getInt("pno");    }    // 先获取Fragment实例，顺便传值    public static Fragment getInstance(int pno) {        // 自己创建Fragmnt        Fragment0 fragment0 = new Fragment0();        // 存储参数        Bundle bundle = new Bundle();        bundle.putInt("pno", pno);        // 设置进去        fragment0.setArguments(bundle);        return fragment0;    }}``

调用

viewPager.setAdapter(new FragmentPagerAdapter(                getSupportFragmentManager()) {            @Override            public int getCount() {                return 5;            }            @Override            public Fragment getItem(int position) {                Fragment fragment0 = Fragment0.getInstance(position + 1);                return fragment0;            }        });

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