android - 如何在Fragment中调用Activity的onNewIntent?

Question

最近在做搜索栏相关功能的时候发现onNewIntent只能在activity中重写，如果要把代码放在fragment上要怎么写呢？
fragment中要调用的公共方法 内容是json解析api的数据并动态添加控件
DreamFragment

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.sonny.moocalendar.R;

import org.json.JSONArray;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

public class DreamFragment extends BaseFragment {
    public final String APPKEY = "38940dc501db16addba8af7128a0b0b4";
    public final String DEF_CHATSET = "UTF-8";
    public final int DEF_CONN_TIMEOUT = 30000;
    public final int DEF_READ_TIMEOUT = 30000;
    public String userAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, " +
            "like Gecko) Chrome/29.0.1547.66 Safari/537.36";

    private String TAG = "DreamFragment";
    private LinearLayout dreamLayout;

    @Override
    protected void afterCreate(Bundle savedInstanceState) {

    }

    @Override
    protected int getLayoutId() {
        return R.layout.content_dream;
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setRetainInstance(true);
        setHasOptionsMenu(true);

    }


    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        getActivity().setTitle(R.string.search_title);
        View v = super.onCreateView(inflater, container, savedInstanceState);
        dreamLayout = (LinearLayout) v.findViewById(R.id.dream_layout);
        
        return v;
    }


    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        inflater.inflate(R.menu.options_menu, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.search:
                getActivity().onSearchRequested();
                return true;

            default:
                return super.onOptionsItemSelected(item);
        }
    }

    public void getRequest2() {
        String result = null;
        String url = " http://v.juhe.cn/dream/query";//请求接口地址
        Map params = new HashMap();//请求参数
        params.put("key", APPKEY);//应用APPKEY(应用详细页查询)
        params.put("q", "黄金");//梦境关键字，如：黄金 需要utf8 urlencode
        params.put("cid", "");//指定分类，默认全部
        params.put("full", "");//是否显示详细信息，1:是 0:否，默认0

        try {
            result = net(url, params, "GET");
            JSONObject object = new JSONObject(result);
            if (object.getInt("error_code") == 0) {
                Log.d(TAG,object.get("result").toString());
                JSONArray jsonArray = new JSONArray(object.get("result").toString());
                final JSONObject object1 = (JSONObject) jsonArray.get(0);
                Log.d(TAG, object1.get("title") + ":" + object1.get("des"));
                final TextView titleText = new TextView(getActivity());
                final TextView desText = new TextView(getActivity());
                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            titleText.setText(object1.get("title").toString());
                            desText.setText(object1.get("des").toString());
                            dreamLayout.addView(titleText);
                            dreamLayout.addView(desText);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                });
            } else {
                Log.d(TAG,object.get("error_code") + ":" + object.get("reason"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    
    /**
     * @param strUrl 请求地址
     * @param params 请求参数
     * @param method 请求方法
     * @return 网络请求字符串
     * @throws Exception
     */
    public String net(String strUrl, Map params, String method) throws Exception {
        HttpURLConnection conn = null;
        BufferedReader reader = null;
        String rs = null;
        try {
            StringBuffer sb = new StringBuffer();
            if (method == null || method.equals("GET")) {
                strUrl = strUrl + "?" + urlencode(params);
            }
            URL url = new URL(strUrl);
            conn = (HttpURLConnection) url.openConnection();
            if (method == null || method.equals("GET")) {
                conn.setRequestMethod("GET");
            } else {
                conn.setRequestMethod("POST");
                conn.setDoOutput(true);
            }
            conn.setRequestProperty("User-agent", userAgent);
            conn.setUseCaches(false);
            conn.setConnectTimeout(DEF_CONN_TIMEOUT);
            conn.setReadTimeout(DEF_READ_TIMEOUT);
            conn.setInstanceFollowRedirects(false);
            conn.connect();
            if (params != null && method.equals("POST")) {
                try {
                    DataOutputStream out = new DataOutputStream(conn.getOutputStream());
                    out.writeBytes(urlencode(params));
                } catch (Exception e) {
                    // TODO: handle exception
                }
            }
            InputStream is = conn.getInputStream();
            reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
            String strRead = null;
            while ((strRead = reader.readLine()) != null) {
                sb.append(strRead);
            }
            rs = sb.toString();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                reader.close();
            }
            if (conn != null) {
                conn.disconnect();
            }
        }
        return rs;
    }

    //将map型转为请求参数型
    public String urlencode(Map<String, Object> data) {
        StringBuilder sb = new StringBuilder();
        for (Map.Entry i : data.entrySet()) {
            try {
                sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue() + "",
                        "UTF-8")).append("&");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }
}

MainActivity.java

import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;

import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;


import com.sonny.moocalendar.R;

import com.sonny.moocalendar.fragment.DreamFragment;
import com.sonny.moocalendar.fragment.MainFragment;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {
    private String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);


        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string
                .navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);

        //Fragment
        MainFragment mainFragment = new MainFragment();
        DreamFragment dreamFragment = new DreamFragment();
        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction transaction = fragmentManager.beginTransaction();
        transaction.replace(R.id.fragment, mainFragment);
        transaction.commit();
//        handleIntent(getIntent());
    }

    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();

        if (id == R.id.nav_calendar) {
            // Handle the camera action
        } else if (id == R.id.nav_reminders) {

        } else if (id == R.id.nav_notes) {

        } else if (id == R.id.nav_setting) {

        } else if (id == R.id.nav_oneiromancy) {
            DreamFragment dreamFragment = new DreamFragment();
            transaction.replace(R.id.fragment, dreamFragment);
            transaction.commit();
        } else if (id == R.id.nav_constellation) {

        } else if (id == R.id.nav_festival) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        handleIntent(intent);
    }

    private void handleIntent(Intent intent) {
        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
            String query = intent.getStringExtra(SearchManager.QUERY);
            //通过某个方法，请求检索你的数据
            Toast.makeText(MainActivity.this, "你要查询的是：" + query, Toast.LENGTH_SHORT).show();
            new Thread(new Runnable() {
                @Override
                public void run() {
                    DreamFragment.getRequest2();
                    //报错：Error:(144, 34) 错误: 无法从静态上下文中引用非静态 方法 getRequest2()
                }
            }).start();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
    }
}

BaseFragment.java 无关紧要

public abstract class BaseFragment extends Fragment {
    protected View mRootView;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        if (null == mRootView) {
            mRootView = inflater.inflate(getLayoutId(), container, false);
        }

        return mRootView;
    }

    @Override
    public void onActivityCreated(@Nullable
                                  Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        afterCreate(savedInstanceState);
    }

    protected abstract int getLayoutId();

    protected abstract void afterCreate(Bundle savedInstanceState);
}

但是如果单单是在activity的onNewIntent中调用的话，android studio就提示我要设置getRequest2为static..设置了之后里面的getActivity又划红线了唉╮(╯▽╰)╭
接口回调也不知道怎么写..想问问这种问题一般怎么解决会比较好，另外这种动态添加View的方式会不会很粗糙？

补充了其他代码..报错实在没看懂

Answer 1

对于提示为static表示奇怪，我自己试着写了个测试，是没有提示的。
会不会是net方法的问题？
麻烦贴更多的代码。

另外，有2个点：

1. Android开发中，用Log代替System.out.println来查看数据输出，至少在功能丰富度上，前者可以有tag。

2. 关于动态添加控件，推荐使用控制visibility属性的方式。因为直接添加的话，要用代码写更多的属性，若是titleText和desText经常要显示，只是要等网络加载完毕后才显示，那么开始为gone，之后为visible的方式是更简单有效。

---

DreamFragment.getRequest2();
报错的原因：DreamFragment是类，不是变量啊。
修改方法：
在onCreate中将DreamFragment声明为一个Activity内部的成员变量。

//DreamFragment dreamFragment = new DreamFragment();
mDreamFragment = new DreamFragment();