Fragment在Activity中跳转,实现相仿新闻标题跳转新闻内容功能

package com.example.zps.fourfragmentbestpractice;/** * Created by zps on 2015/9/1. */public class News {    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;    }}

package com.example.zps.fourfragmentbestpractice;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.TextView;import java.util.List;/** * Created by zps on 2015/9/1. */public class NewsAdapter extends ArrayAdapter<News>{    private  int resourceId;    public NewsAdapter(Context context, int resource, List<News> objects) {        super(context, resource, objects);        resourceId = resource;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        //实际上就是获取适配器的布局,不过要通过其他类实例化使用

        News news = getItem(position);        View view;        if(convertView==null){            view = LayoutInflater.from(getContext()).inflate(resourceId,null);        }else {            view = convertView;        }

        //适配器布局中的TextView获取到news的数据;        TextView newsTitleText = (TextView)view.findViewById(R.id.news_item_news_title);        newsTitleText.setText(news.getTitle());        return view;    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <TextView        android:id="@+id/news_item_news_title"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:ellipsize="end"        android:paddingBottom="15dp"        android:paddingLeft="10dp"        android:paddingRight="10dp"        android:paddingTop="15dp"        android:singleLine="true"        android:textSize="18sp"        /></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <ListView        android:id="@+id/news_title_list_view"        android:layout_width="match_parent"        android:layout_height="match_parent"></ListView></LinearLayout>

package com.example.zps.fourfragmentbestpractice;import android.app.Activity;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.ListView;import java.util.ArrayList;import java.util.List;/** * Created by zps on 2015/9/1. */public class NewsTitleFragment extends Fragment implements AdapterView.OnItemClickListener {    private List<News> listNews;    private ListView newsTitleListView;    private NewsAdapter adapter;    private boolean isTwoPane;//首先执行onAttach()对数据初始化    @Override    public void onAttach(Activity activity) {        super.onAttach(activity);        //获取模拟新闻数据        listNews = getNews();        //设置适配器的数据,适配器加载news_item.xml布局        adapter = new NewsAdapter(activity, R.layout.news_adapter, listNews);    }//再执行onCreateView()对布局界面初始化    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.news_title_fragment, container, false);        newsTitleListView = (ListView) view.findViewById(R.id.news_title_list_view);        //取得适配器的数据,为news_title_frag.xml布局下的ListView视图的子视图设置适配器;        newsTitleListView.setAdapter(adapter);        newsTitleListView.setOnItemClickListener(this);        return view;    }    @Override    public void onActivityCreated(Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        if (getActivity().findViewById(R.id.news_content_layout)!=null) {            isTwoPane = true;        }else {            isTwoPane = false;        }    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {       News news = listNews.get(position);        if(isTwoPane){            NewsContentFragment newsContentFragment = (NewsContentFragment)getFragmentManager()                    .findFragmentById(R.id.news_content_fragment);            newsContentFragment.refresh(news.getTitle(),news.getContent());        }else {         NewsContentActivity.actionStart(getActivity(),news.getTitle(),news.getContent());        }    }    private List<News> getNews() {        listNews = new ArrayList<>();        News news1 = new News();        news1.setTitle("会见连战等出席抗战胜利纪念活动的台湾各界代表人士");        news1.setContent("新华网快讯：中共中央总书记１日上午在人民大会堂会见出席抗战胜利７０周年纪念活动的连战等台湾各界代表人士。");        listNews.add(news1);        News news2 = new News();        news2.setTitle("9月2日-4日256条公交绕行或停驶");        news2.setContent("北京市交通委表示，北京市公共交通运行将严格执行通告措施，按时尽快恢复公共交通运行，尽量减少对市民出行的影响。同时，在北京火车站等重点地区加大地面公交和出租保障措施，自9月2日20:00起至阅兵活动结束，公交、出租启动专项保障方案。\n" +                "\n" +                "地面公交方面，日班线路20路、25路、29路、39路、52路等5条日班线路，配车147部，每条线路增加5部机动车辆。可接驳地铁4号线、5号线、7号线和10号线四条地铁线路，确保抵京客流的及时疏散。\n" +                "\n" +                "夜班线夜17路、夜19路等2条夜班线路，配车8部，每条线路增加5部机动车辆，共配车18部。可接驳北京站东、北京焦化厂方向");        listNews.add(news2);        return listNews;    }}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <fragment        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/news_title_fragment"        android:name="com.example.zps.fourfragmentbestpractice.NewsTitleFragment"/></LinearLayout>

package com.example.zps.fourfragmentbestpractice;import android.os.Bundle;import android.support.v4.app.FragmentActivity;import android.view.Window;public class NewsTitleActivity extends FragmentActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.news_title);    }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <LinearLayout        android:id="@+id/visibility_layout"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical"        android:visibility="invisible">        <TextView            android:id="@+id/news_content_news_title"            android:layout_width="match_parent"            android:layout_height="wrap_content" />        <ImageView            android:layout_width="match_parent"            android:layout_height="1dp"            android:scaleType="fitXY"            android:src="@drawable/spilt_line_line" />        <TextView            android:id="@+id/news_content_news_content"            android:layout_width="match_parent"            android:layout_height="0dp"            android:layout_weight="1"            android:padding="15dp"            android:textSize="18sp"/>    </LinearLayout>        <ImageView            android:layout_width="1dp"            android:layout_height="match_parent"            android:scaleType="fitXY"            android:src="@drawable/split_line_vertical"/></RelativeLayout>

package com.example.zps.fourfragmentbestpractice;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;/** * Created by zps on 2015/9/1. */public class NewsContentFragment extends Fragment {    private View view;    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        view = inflater.inflate(R.layout.news_content_fragment, container, false);        return view;    }    //将新闻标题和内容显示在界面上    public void refresh(String newsTitle, String newsContent) {        View visibilityLayout = view.findViewById(R.id.visibility_layout);        visibilityLayout.setVisibility(View.VISIBLE);        TextView newsTitleText = (TextView) view.findViewById(R.id.news_content_news_title);        TextView newsContentText = (TextView) view.findViewById(R.id.                news_content_news_content);        newsTitleText.setText(newsTitle);        newsContentText.setText(newsContent);    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"><fragment    android:id="@+id/news_content_fragment"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:name="com.example.zps.fourfragmentbestpractice.NewsContentFragment"/></LinearLayout>

package com.example.zps.fourfragmentbestpractice;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.support.v4.app.FragmentActivity;import android.view.Window;/** * Created by zps on 2015/9/1. */public class NewsContentActivity extends FragmentActivity {    public static void actionStart(Context context, String newsTitle, String newsContent) {        Intent intent = new Intent(context, NewsContentActivity.class);        intent.putExtra("news_title", newsTitle);        intent.putExtra("news_content", newsContent);        context.startActivity(intent);    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.news_content);        String newsTitle = getIntent().getStringExtra("news_title");        String newsContent = getIntent().getStringExtra("news_content");        NewsContentFragment newsContentFragment = (NewsContentFragment) getSupportFragmentManager()                .findFragmentById(R.id.news_content_fragment);        newsContentFragment.refresh(newsTitle,newsContent);    }}