项目代码结构：

1：MainActivity.java

package com.example.fgtest;import android.app.Activity;import android.os.Bundle;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);            }}

layout/activity_main.xml

layout-sw600dp/activity_main.xml

 

2：实体对象Notice.java

package com.wzh.bean;public class Notice {    private String title;    private String content;        public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }        }

3：NoticeAdapter.java

package com.wzh.adapter;import java.util.List;import com.example.fgtest.R;import com.wzh.bean.Notice;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.TextView;public class NoticeAdapter extends ArrayAdapter
     
      {    int resourceId;        public NoticeAdapter(Context context, int resourceId, List
      
        list){        super(context, resourceId, list);        this.resourceId = resourceId;    }        @Override    public View getView(int position, View convertView, ViewGroup parent) {        Notice notice = getItem(position);        ViewHolder viewHolder;                if(convertView==null){            convertView = LayoutInflater.from(getContext()).inflate(this.resourceId, null);                        viewHolder = new ViewHolder();                        viewHolder.tvNoticeTitle = (TextView)convertView.findViewById(R.id.tvNoticeTitle);                        convertView.setTag(viewHolder);        }else{
                viewHolder = (ViewHolder)convertView.getTag();        } 　　　　 viewHolder.tvNoticeTitle.setText(notice.getTitle());                return convertView;    }            class ViewHolder{        TextView tvNoticeTitle;    }}
      
     

fragment_notice_content.xml

4：NoticeContentActivity.java

package com.example.fgtest;import com.wzh.fragment.NoticeContentFragment;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.os.Bundle;public class NoticeContentActivity extends Activity{        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);                setContentView(R.layout.activity_notice_content);                String title = getIntent().getStringExtra("title");        String content = getIntent().getStringExtra("content");                NoticeContentFragment noticeContentFragment = (NoticeContentFragment)                getFragmentManager().findFragmentById(R.id.fgNoticeContent);        noticeContentFragment.refreshNoticeContent(title, content);        }        public static void openActivity(Context context, String title, String content){        Intent intent = new Intent(context, NoticeContentActivity.class);        intent.putExtra("title", title);        intent.putExtra("content", content);        context.startActivity(intent);    }}

activity_notice_content.xml

5：NoticeContentFragment.java

package com.wzh.fragment;import com.example.fgtest.R;import android.app.Fragment;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;public class NoticeContentFragment extends Fragment{    View view;        @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,            Bundle savedInstanceState) {        view = inflater.inflate(R.layout.fragment_notice_content, container, false);                return view;    }        public  void refreshNoticeContent(String title,String content){        TextView tvNoticeTitle = (TextView)view.findViewById(R.id.tvNoticeTitle);        TextView tvNoticeContent = (TextView)view.findViewById(R.id.tvNoticeContent);                tvNoticeTitle.setText(title);        tvNoticeContent.setText(content);    }}

fragment_notice_content.xml

6：NoticeTitleFragment.java

package com.wzh.fragment;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.app.Fragment;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ListView;import com.example.fgtest.NoticeContentActivity;import com.example.fgtest.R;import com.wzh.adapter.NoticeAdapter;import com.wzh.bean.Notice;public class NoticeTitleFragment extends Fragment{        NoticeAdapter noticeAdapter;    ListView lvNoticeTitle;    List
     
       noticeList;    boolean isTwoPanel = false;    int curClickPosition = -1;    NoticeContentFragment noitceContentFragment;        @Override    public void onAttach(Activity activity) {        super.onAttach(activity);        getNoticeTestData();        noticeAdapter = new NoticeAdapter(activity,R.layout.list_notice_title_item,noticeList);    }            @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,            Bundle savedInstanceState) {                View view = inflater.inflate(R.layout.fragment_notice_title, container, false);                lvNoticeTitle = (ListView)view.findViewById(R.id.lvNoticeTitle);        lvNoticeTitle.setAdapter(noticeAdapter);        lvNoticeTitle.setOnItemClickListener(itemClickListener());                return view;    }        @Override    public void onActivityCreated(Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);                if(getActivity().findViewById(R.id.flNoticeContent)!=null){            isTwoPanel = true;            noitceContentFragment = (NoticeContentFragment)                    getActivity().getFragmentManager().findFragmentById(R.id.fgNoticeContent);            if(noticeList.size()>0){                Notice notice = noticeList.get(0);                noitceContentFragment.refreshNoticeContent(notice.getTitle(), notice.getContent());            }        }else{            isTwoPanel = false;        }    }            OnItemClickListener itemClickListener(){        return new OnItemClickListener(){            @Override            public void onItemClick(AdapterView
       arg0, View arg1, int arg2,                    long arg3) {                Notice notice = noticeList.get(arg2);                String title = notice.getTitle();                String content = notice.getContent();                if(isTwoPanel){                    if(curClickPosition!=arg2){                        noitceContentFragment.refreshNoticeContent(title, content);                    }                    curClickPosition = arg2;                }else{                    NoticeContentActivity.openActivity(getActivity(), title, content);                }            }                    };    }                void getNoticeTestData(){        noticeList = new ArrayList
      
       ();        Notice notice = new Notice();        notice.setTitle("测试标题1");        notice.setContent("测试标题内容1");        noticeList.add(notice);        notice = new Notice();        notice.setTitle("测试标题2");        notice.setContent("测试标题内容2");        noticeList.add(notice);        notice = new Notice();        notice.setTitle("测试标题3");        notice.setContent("测试标题内容3");        noticeList.add(notice);    }}
      
     

fragment_notice_title.xml