今日头条包含以下模块：

首页 视频 天气 和 我的

其中 首页用于加载实时的新闻频道及内容，可以实现点击图片查看图片详情，并且可以实现内容的收藏与取消收藏

视频模块暂时未加入任何内容

天气模块可以实现天气的实时更新，最多可以显示最近三天的天气情况

我的 模块中 点击收藏，可以查看收藏的新闻内容

              **Activity代码：**

MainActivity

public class MainActivity extends AppCompatActivity {private FragmentTabHost ft;private String[] str = {"首页", "视频", "天气", "我的"};private int[] imgRes = {R.drawable.home, R.drawable.video, R.drawable.topic,R.drawable.my};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ft = (FragmentTabHost) findViewById(R.id.ft);getSupportActionBar().hide();init();}public void init() {//装配ft.setup(this, getSupportFragmentManager(), R.id.fl);Fragment home = new HomeFragment();//TabSpec标签说明TabHost.TabSpec tabSpec0 =ft.newTabSpec(str[0]).setIndicator(getView(0));ft.addTab(tabSpec0, home.getClass(), null);Fragment video = new VideoFragment();TabHost.TabSpec tabSpec1 =ft.newTabSpec(str[1]).setIndicator(getView(1));ft.addTab(tabSpec1, video.getClass(), null);Fragment topic = new TopicFragment();TabHost.TabSpec tabSpec2 =ft.newTabSpec(str[2]).setIndicator(getView(2));ft.addTab(tabSpec2, topic.getClass(), null);Fragment my = new MyFragment();TabHost.TabSpec tabSpec3 =ft.newTabSpec(str[3]).setIndicator(getView(3));ft.addTab(tabSpec3, my.getClass(), null);}public View getView(int i) {View v = getLayoutInflater().inflate(R.layout.tab_layout, null);ImageView iv = (ImageView) v.findViewById(R.id.iv);TextView tv = (TextView) v.findViewById(R.id.tv);iv.setImageResource(imgRes[i]);tv.setText(str[i]);return v;}
}

ContentActivity

public class ContentActivity extends AppCompatActivity {
private WebView wv;
private ImageView back;
private TextView title, collection;
private boolean isExisits;
private NewsDao newsDao;
private String titles;
//全局变量自动赋值 局部变量不可以
private MyNews news;

@Override
protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_content);getSupportActionBar().hide();wv = (WebView) findViewById(R.id.wv);back = (ImageView) findViewById(R.id.back);title = (TextView) findViewById(R.id.title);collection = (TextView) findViewById(R.id.collection);//getIntent()是将该项目中包含的原始intent检索出来//将检索出来的intent赋值给一个Intent类型的变量intentIntent intent = getIntent();String html = "";titles = "";if (intent != null) {news = intent.getParcelableExtra("news");html = news.getHtml();titles = news.getTitle();}title.setText(titles);WebSettings ws = wv.getSettings();//支持放大ws.setSupportZoom(true);//显示放大缩小的控件  一个加号一个减号ws.setDisplayZoomControls(true);ws.setJavaScriptEnabled(true);ws.setDefaultTextEncodingName("utf-8");//放大多少倍//ws.setTextZoom(20);wv.loadDataWithBaseURL("", html, "text/html", "utf-8", "");//设置内容的背景颜色wv.setBackgroundColor(getResources().getColor(R.color.background));newsDao = new NewsDao(this);//判断新闻是否收藏过checkNews(titles);back.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {finish();}});collection.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {if(isExisits){newsDao.deleteNews(news.getTitle());collection.setText("取消收藏");}else {newsDao.addNews(news);collection.setText("收藏");}checkNews(news.getTitle());}});
}public void checkNews(String title) {MyNews myNews = newsDao.searchNews(title);// MyNews myNews = new MyNews();if (myNews == null) {collection.setText("收藏");isExisits = false;} else {collection.setText("取消收藏");isExisits = true;}
}

}

ImgActivity

public class ImgActivity extends AppCompatActivity {private PhotoViewPager pvp;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_img);getSupportActionBar().hide();pvp = (PhotoViewPager) findViewById(R.id.pvp);Intent intent = getIntent();String imgUrls = intent.getStringExtra("img");List<PhotoView> pvList = new ArrayList<>();List imgList = paserImageList(imgUrls);for (int i = 0; i < imgList.size(); i++) {PhotoView pv = new PhotoView(this);pv.setScaleType(ImageView.ScaleType.CENTER_CROP);Glide.with(this).load(imgList.get(i)).into(pv);pvList.add(pv);}pvp.setAdapter(new MyViewPagerAdapter(pvList));}public List paserImageList(String imgList) {List img = new ArrayList();try {JSONArray ja = new JSONArray(imgList);for (int i = 0; i < ja.length(); i++) {JSONObject obj = (JSONObject) ja.get(i);if (obj.has("url")) {img.add(obj.getString("url"));}}} catch (JSONException e) {e.printStackTrace();}return img;}public class MyViewPagerAdapter extends PagerAdapter {private List<PhotoView> myData;public MyViewPagerAdapter(List<PhotoView> myData) {this.myData = myData;}@Overridepublic int getCount() {return myData.size();}@Overridepublic boolean isViewFromObject(View view, Object object) {return view == object;}//自己写的@Overridepublic Object instantiateItem(ViewGroup container, int position) {container.addView(myData.get(position));return myData.get(position);}//自己写的@Overridepublic void destroyItem(ViewGroup container, int position, Object object) {container.removeView(myData.get(position));}}
}

CollectionActivity

public class CollectionActivity extends AppCompatActivity {private ListView lv;private List<MyNews> list;private NewsDao newsDao;private NewsBaseAdapter na;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_collection);lv = (ListView) findViewById(R.id.lv);list = new ArrayList<>();na = new NewsBaseAdapter(list, this);lv.setAdapter(na);newsDao = new NewsDao(this);getList();}public void getList() {//先清空  避免叠加list.clear();//list=List不可用  由于不能触发na.notifyDataSetChanged();所以导致布局加载不出数据来list.addAll(newsDao.searchNews());na.notifyDataSetChanged();}@Overrideprotected void onStart() {super.onStart();getList();}
}

                   **adapter 代码**

MyTabHostAdapter

public class MyTabHostAdapter extends FragmentPagerAdapter {private List<Fragment> list;public MyTabHostAdapter(FragmentManager fm, List<Fragment> list) {super(fm);this.list = list;}@Overridepublic Fragment getItem(int position) {return list.get(position);}@Overridepublic int getCount() {return list.size();}
}

NewsBaseAdapter

public class NewsBaseAdapter extends BaseAdapter {private List<MyNews> myNews;private Context context;//常量必须从0开始  并且不能跳着来不能0,2,4...private final int TYPE0 = 0;private final int TYPE1 = 1;private final int TYPE2 = 2;private final int TYPE3 = 3;public NewsBaseAdapter(List<MyNews> myNews, Context context) {this.myNews = myNews;this.context = context;}@Overridepublic int getCount() {return myNews.size();}@Overridepublic Object getItem(int position) {return myNews.get(position);}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {final ViewHolder vh;int type = getItemViewType(position);if (convertView == null) {vh = new ViewHolder();if (type == 3) {convertView = LayoutInflater.from(context).inflate(R.layout.my_news_layout3, null);vh.title = (TextView) convertView.findViewById(R.id.title);vh.pubDate = (TextView) convertView.findViewById(R.id.pubDate);vh.source = (TextView) convertView.findViewById(R.id.source);vh.img = (ImageView) convertView.findViewById(R.id.img);vh.img2 = (ImageView) convertView.findViewById(R.id.img2);vh.img3 = (ImageView) convertView.findViewById(R.id.img3);vh.img.setOnClickListener(new ClickLisner(position));vh.img2.setOnClickListener(new ClickLisner(position));vh.img3.setOnClickListener(new ClickLisner(position));convertView.setTag(vh);} else if (type == 2) {convertView = LayoutInflater.from(context).inflate(R.layout.my_news_layout2, null);vh.title = (TextView) convertView.findViewById(R.id.title);vh.pubDate = (TextView) convertView.findViewById(R.id.pubDate);vh.source = (TextView) convertView.findViewById(R.id.source);vh.img = (ImageView) convertView.findViewById(R.id.img);vh.img2 = (ImageView) convertView.findViewById(R.id.img2);vh.img.setOnClickListener(new ClickLisner(position));vh.img2.setOnClickListener(new ClickLisner(position));convertView.setTag(vh);} else if (type == 1) {convertView = LayoutInflater.from(context).inflate(R.layout.my_news_layout1, null);vh.title = (TextView) convertView.findViewById(R.id.title);vh.pubDate = (TextView) convertView.findViewById(R.id.pubDate);vh.source = (TextView) convertView.findViewById(R.id.source);vh.img = (ImageView) convertView.findViewById(R.id.img);vh.img.setOnClickListener(new ClickLisner(position));convertView.setTag(vh);} else {convertView = LayoutInflater.from(context).inflate(R.layout.my_news_layout, null);vh.title = (TextView) convertView.findViewById(R.id.title);vh.pubDate = (TextView) convertView.findViewById(R.id.pubDate);vh.source = (TextView) convertView.findViewById(R.id.source);convertView.setTag(vh);}} else {vh = (ViewHolder) convertView.getTag();}//通过这一句知道要加载哪个频道的newsMyNews news = myNews.get(position);if (type == 3) {vh.title.setText(news.getTitle());vh.source.setText(news.getSource());vh.pubDate.setText(news.getPubDate());List list = paserImageList(news.getImageurls());if (list.size() == 3) {Glide.with(context).load(list.get(0)).into(vh.img);Glide.with(context).load(list.get(1)).into(vh.img2);Glide.with(context).load(list.get(2)).into(vh.img3);}} else if (type == 2) {vh.title.setText(news.getTitle());vh.source.setText(news.getSource());vh.pubDate.setText(news.getPubDate());List list = paserImageList(news.getImageurls());if (list.size() == 2) {Glide.with(context).load(list.get(0)).into(vh.img);Glide.with(context).load(list.get(1)).into(vh.img2);}} else if (type == 1) {vh.title.setText(news.getTitle());vh.source.setText(news.getSource());vh.pubDate.setText(news.getPubDate());List list = paserImageList(news.getImageurls());if (list.size() == 1) {Glide.with(context).load(list.get(0)).into(vh.img);}} else {vh.title.setText(news.getTitle());vh.source.setText(news.getSource());vh.pubDate.setText(news.getPubDate());}convertView.setOnClickListener(new ClickLisner(position));return convertView;}public class ClickLisner implements View.OnClickListener {private int position;//在类里生成构造 把position传进来public ClickLisner(int position) {this.position = position;}@Overridepublic void onClick(View v) {int id=v.getId();if(id==R.id.img||id==R.id.img2||id==R.id.img3){Intent intent=new Intent(context, ImgActivity.class);intent.putExtra("img",myNews.get(position).getImageurls());context.startActivity(intent);}else{MyNews news = myNews.get(position);// Log.d("======", news.getHtml());Intent intent = new Intent(context, ContentActivity.class);//MyNews要实现序列化intent.putExtra("news", news);context.startActivity(intent);}}}public class ViewHolder {TextView pubDate;TextView title;ImageView img;TextView source;ImageView img2;ImageView img3;}@Overridepublic int getItemViewType(int position) {List list = paserImageList(myNews.get(position).getImageurls());if (list.size() == 3) {return TYPE3;} else if (list.size() == 1) {return TYPE1;} else if (list.size() == 2) {return TYPE2;} else {return TYPE0;}}@Overridepublic int getViewTypeCount() {return 4;}public List paserImageList(String imgList) {List img = new ArrayList();try {JSONArray ja = new JSONArray(imgList);for (int i = 0; i < imgList.length(); i++) {JSONObject obj = (JSONObject) ja.get(i);if (obj.has("url")) {img.add(obj.getString("url"));}}} catch (JSONException e) {e.printStackTrace();}return img;}}

NewsFragmentAdapter

public class NewsFragmentAdapter extends FragmentPagerAdapter {private List<Fragment> fragmentList;private List<String> titles;public NewsFragmentAdapter(FragmentManager fm, List<Fragment> fragmentList, List<String> titles) {//public NewsFragmentAdapter(List<News> fm,FragmentActivity fragmentList) {super(fm);this.fragmentList = fragmentList;this.titles = titles;}@Overridepublic Fragment getItem(int position) {return fragmentList.get(position);}@Overridepublic int getCount() {return fragmentList.size();}@Overridepublic CharSequence getPageTitle(int position) {return titles.get(position);}
}

                             **dao文件**

NewsDao

public class NewsDao {private MyDbHelper myDbHelper;public NewsDao(Context context) {myDbHelper = new MyDbHelper(context);}//收藏新闻public void addNews(MyNews myNews) {SQLiteDatabase db = myDbHelper.getWritableDatabase();ContentValues cv = new ContentValues();cv.put("title", myNews.getTitle());cv.put("pubDate", myNews.getPubDate());cv.put("source", myNews.getSource());cv.put("html", myNews.getHtml());cv.put("imageurls", myNews.getImageurls());db.insert("news", null, cv);db.close();}//查询所有收藏public List searchNews() {SQLiteDatabase db = myDbHelper.getReadableDatabase();Cursor cs = db.query("news", null, null, null, null, null, null);MyNews myNews = null;List<MyNews> list = new ArrayList<>();while (cs.moveToNext()) {myNews = new MyNews();// cs.getColumnIndex("_id")   id 这一列结果中的下标myNews.setTitle(cs.getString(cs.getColumnIndex("title")));myNews.setSource(cs.getString(cs.getColumnIndex("source")));myNews.setPubDate(cs.getString(cs.getColumnIndex("pubDate")));myNews.setHtml(cs.getString(cs.getColumnIndex("html")));myNews.setImageurls(cs.getString(cs.getColumnIndex("imageurls")));list.add(myNews);}cs.close();db.close();return list;}//查询一条收藏public MyNews searchNews(String title) {SQLiteDatabase db = myDbHelper.getWritableDatabase();Cursor cs = db.query("news", null, "title = ? ", new String[]{title}, null, null, null);MyNews myNews = null;if (cs.moveToNext()) {myNews = new MyNews();// cs.getColumnIndex("_id")   id 这一列结果中的下标myNews.setTitle(cs.getString(cs.getColumnIndex("title")));myNews.setSource(cs.getString(cs.getColumnIndex("source")));myNews.setPubDate(cs.getString(cs.getColumnIndex("pubDate")));myNews.setHtml(cs.getString(cs.getColumnIndex("html")));myNews.setImageurls(cs.getString(cs.getColumnIndex("imageurls")));}cs.close();db.close();return myNews;}// 取消收藏public void deleteNews(String title) {SQLiteDatabase db = myDbHelper.getWritableDatabase();db.delete("news", "title= ? ", new String[]{title});db.close();}}

NewsCacheDao

public class NewsCacheDao {private Context context;private Dao<MyNews, Integer> newsDao;private DatabaseHelper helper;public NewsCacheDao(Context context) {this.context = context;helper = (DatabaseHelper) DatabaseHelper.getHelper(context);try {newsDao = helper.getDao(MyNews.class);} catch (SQLException e) {e.printStackTrace();}}public void addNews(MyNews news) {try {//根据主键来判断是更新还是修改  因此一定要有主键newsDao.createOrUpdate(news);} catch (SQLException e) {e.printStackTrace();}}//根据id查找新闻public ArrayList<MyNews> searchNews(String chId) {try {return (ArrayList<MyNews>) newsDao.queryBuilder().where().eq("channelId", chId).query();} catch (SQLException e) {e.printStackTrace();}return null;}
}

WeatherCacheDao

public class WeatherCacheDao {private Context context;private Dao<Weather, Integer> weatherDao;private DatabaseHelper helper;public WeatherCacheDao(Context context) {this.context = context;helper = (DatabaseHelper) DatabaseHelper.getHelper(context);try {weatherDao = helper.getDao(Weather.class);} catch (SQLException e) {e.printStackTrace();}}public void addWeather(Weather weather) {try {//根据主键来判断是更新还是修改  因此一定要有主键weatherDao.createOrUpdate(weather);} catch (SQLException e) {e.printStackTrace();}}//查询所有public List<Weather> searchWeather() {try {return weatherDao.queryForAll();} catch (SQLException e) {e.printStackTrace();}return null;}public  void deleteAll(){try {weatherDao.deleteBuilder().delete();} catch (SQLException e) {e.printStackTrace();}}
}

                     **dataBaseHelper文件**

DatabaseHelper

public  class DatabaseHelper extends OrmLiteSqliteOpenHelper {private static final String TABLE_NAME = "ormtest.db";private Map<String, Dao> daos = new HashMap<String, Dao>();private static DatabaseHelper instance;private DatabaseHelper(Context context) {super(context, TABLE_NAME, null, 2);}@Override  public void onCreate(SQLiteDatabase database,  ConnectionSource connectionSource) {try {TableUtils.createTable(connectionSource, MyNews.class);TableUtils.createTable(connectionSource, Weather.class);} catch (SQLException e) {e.printStackTrace();  }  }@Override  public void onUpgrade(SQLiteDatabase database,  ConnectionSource connectionSource, int oldVersion, int newVersion) {try {//匹配User.class类TableUtils.dropTable(connectionSource, MyNews.class, true);TableUtils.dropTable(connectionSource, Weather.class, true);onCreate(database, connectionSource);} catch (SQLException e) {e.printStackTrace();  }  }/** * 单例获取该Helper *  * @param context * @return */  public static synchronized DatabaseHelper getHelper(Context context) {context = context.getApplicationContext();  if (instance == null) {synchronized (DatabaseHelper.class) {if (instance == null)  {instance = new DatabaseHelper(context);}}  }return instance;  }public synchronized Dao getDao(Class clazz) throws SQLException {Dao dao = null;String className = clazz.getSimpleName();if (daos.containsKey(className)) {dao = daos.get(className);  }  if (dao == null) {dao = super.getDao(clazz);  daos.put(className, dao);  }  return dao;  }/** * 释放资源 */  @Override  public void close() {super.close();for (String key : daos.keySet()) {Dao dao = daos.get(key);dao = null;  }  }
}  

MyDbHelper

public class MyDbHelper extends SQLiteOpenHelper {private final String DBNAME = "MyNews.db";private final String TABLE_NAME = "news";//在SQLite里用作特殊标识的要加下划线(主键)private final String INFO_COLUM_ID = "nid";private final String INFO_COLUM_TITLE = "title";private final String INFO_COLUM_HTML = "html";private final String INFO_COLUM_PUBDATE = "pubDate";private final String INFO_COLUM_SOURCE = "source";private final String INFO_COLUM_IMG = "imageurls";public MyDbHelper(Context context) {//版本号不能为0super(context, "MyNews.db", null, 1);}public MyDbHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {super(context, name, factory, version);}@Overridepublic void onCreate(SQLiteDatabase db) {//如果没有数据库及数据表 就会在OnCreate里自动创建StringBuilder sql = new StringBuilder();sql.append("Create table if not exists ");sql.append(TABLE_NAME + " ( ");// autoincrement 这一行自动增长//sql.append(INFO_COLUM_ID + " varchar(50) primary key ,");sql.append(INFO_COLUM_TITLE + " varchar(100)  primary key ,");sql.append(INFO_COLUM_HTML + " varchar(5000),");sql.append(INFO_COLUM_PUBDATE + " varchar(20),");sql.append(INFO_COLUM_SOURCE + " varchar(20),");sql.append(INFO_COLUM_IMG + " varchar(500)");sql.append(" ) ");//执行SQLdb.execSQL(sql.toString());}//数据库更新升级// 通过版本号Version 删除以前的表  然后重新调用OnCreate@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {//删除表（delete是删除表里的数据）String sql = " drop table if exists " + TABLE_NAME;db.execSQL(sql);onCreate(db);}
}

                          **entity文件**

MyNews

@DatabaseTable(tableName = "newsCache")
public class MyNews implements Parcelable{@DatabaseFieldprivate String pubDate;@DatabaseField(id=true)private String title;private String channelName;private String desc;@DatabaseFieldprivate String source;@DatabaseFieldprivate String channelId;private String link;@DatabaseFieldprivate String html;private List<String> allList;@DatabaseFieldprivate String imageurls;private  String nid;public MyNews() {}protected MyNews(Parcel in) {pubDate = in.readString();title = in.readString();channelName = in.readString();desc = in.readString();source = in.readString();channelId = in.readString();link = in.readString();html = in.readString();allList = in.createStringArrayList();imageurls = in.readString();nid = in.readString();}public static final Creator<MyNews> CREATOR = new Creator<MyNews>() {@Overridepublic MyNews createFromParcel(Parcel in) {return new MyNews(in);}@Overridepublic MyNews[] newArray(int size) {return new MyNews[size];}};@Overridepublic int describeContents() {return 0;}@Overridepublic void writeToParcel(Parcel dest, int flags) {dest.writeString(pubDate);dest.writeString(title);dest.writeString(channelName);dest.writeString(desc);dest.writeString(source);dest.writeString(channelId);dest.writeString(link);dest.writeString(html);dest.writeStringList(allList);dest.writeString(imageurls);dest.writeString(nid);}public String getPubDate() {return pubDate;}public String getTitle() {return title;}public String getChannelName() {return channelName;}public String getDesc() {return desc;}public String getSource() {return source;}public String getChannelId() {return channelId;}public String getLink() {return link;}public String getHtml() {return html;}public List<String> getAllList() {return allList;}public String getImageurls() {return imageurls;}public String getNid() {return nid;}public static Creator<MyNews> getCREATOR() {return CREATOR;}public void setPubDate(String pubDate) {this.pubDate = pubDate;}public void setTitle(String title) {this.title = title;}public void setChannelName(String channelName) {this.channelName = channelName;}public void setDesc(String desc) {this.desc = desc;}public void setSource(String source) {this.source = source;}public void setChannelId(String channelId) {this.channelId = channelId;}public void setLink(String link) {this.link = link;}public void setHtml(String html) {this.html = html;}public void setAllList(List<String> allList) {this.allList = allList;}public void setImageurls(String imageurls) {this.imageurls = imageurls;}public void setNid(String nid) {this.nid = nid;}
}

Weather

@DatabaseTable
public class Weather implements Parcelable{@DatabaseField(id=true)private String date;                          //日期@DatabaseFieldprivate String text_day;                     //白天天气现象文字@DatabaseFieldprivate String code_day;                     //白天天气现象代码@DatabaseFieldprivate String text_night;                   //晚间天气现象文字@DatabaseFieldprivate String code_night;                  //晚间天气现象代码private String high;                         //当天最高温度private String low;                          //当天最低温度private String precip;                       //降水概率，范围0~100，单位百分比private String wind_direction;              //风向文字private String wind_direction_degree;      //风向角度，范围0~360private String wind_speed;                  //风速，单位km/h（当unit=c时）、mph（当unit=f时）private String wind_scale;                  //风力等级public Weather() {}protected Weather(Parcel in) {date = in.readString();text_day = in.readString();code_day = in.readString();text_night = in.readString();code_night = in.readString();high = in.readString();low = in.readString();precip = in.readString();wind_direction = in.readString();wind_direction_degree = in.readString();wind_speed = in.readString();wind_scale = in.readString();}public static final Creator<Weather> CREATOR = new Creator<Weather>() {@Overridepublic Weather createFromParcel(Parcel in) {return new Weather(in);}@Overridepublic Weather[] newArray(int size) {return new Weather[size];}};public String getDate() {return date;}public String getText_day() {return text_day;}public String getCode_day() {return code_day;}public String getText_night() {return text_night;}public String getCode_night() {return code_night;}public String getHigh() {return high;}public String getLow() {return low;}public String getPrecip() {return precip;}public String getWind_direction() {return wind_direction;}public String getWind_direction_degree() {return wind_direction_degree;}public String getWind_speed() {return wind_speed;}public String getWind_scale() {return wind_scale;}public void setDate(String date) {this.date = date;}public void setText_day(String text_day) {this.text_day = text_day;}public void setCode_day(String code_day) {this.code_day = code_day;}public void setText_night(String text_night) {this.text_night = text_night;}public void setCode_night(String code_night) {this.code_night = code_night;}public void setHigh(String high) {this.high = high;}public void setLow(String low) {this.low = low;}public void setPrecip(String precip) {this.precip = precip;}public void setWind_direction(String wind_direction) {this.wind_direction = wind_direction;}public void setWind_direction_degree(String wind_direction_degree) {this.wind_direction_degree = wind_direction_degree;}public void setWind_speed(String wind_speed) {this.wind_speed = wind_speed;}public void setWind_scale(String wind_scale) {this.wind_scale = wind_scale;}@Overridepublic int describeContents() {return 0;}@Overridepublic void writeToParcel(Parcel dest, int flags) {dest.writeString(date);dest.writeString(text_day);dest.writeString(code_day);dest.writeString(text_night);dest.writeString(code_night);dest.writeString(high);dest.writeString(low);dest.writeString(precip);dest.writeString(wind_direction);dest.writeString(wind_direction_degree);dest.writeString(wind_speed);dest.writeString(wind_scale);}@Overridepublic String toString() {return "Weather{" +"date='" + date + '\'' +", text_day='" + text_day + '\'' +", code_day='" + code_day + '\'' +", text_night='" + text_night + '\'' +", code_night='" + code_night + '\'' +", high='" + high + '\'' +", low='" + low + '\'' +", precip='" + precip + '\'' +", wind_direction='" + wind_direction + '\'' +", wind_direction_degree='" + wind_direction_degree + '\'' +", wind_speed='" + wind_speed + '\'' +", wind_scale='" + wind_scale + '\'' +'}';}
}

            **fragment文件**

HomeFragment

public class HomeFragment extends Fragment {private PagerSlidingTabStrip pst;private ViewPager vp;private List<Fragment> fragmentList;private List<Map<String, String>> channelList;private List<String> titles;private NewsFragmentAdapter nfa;public HomeFragment() {// Required empty public constructor}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragmentreturn inflater.inflate(R.layout.home_layout, container, false);}@Overridepublic void onActivityCreated(@Nullable Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);fragmentList = new ArrayList<>();titles = new ArrayList<>();pst = (PagerSlidingTabStrip) getView().findViewById(R.id.pst);vp = (ViewPager) getView().findViewById(R.id.vp);nfa = new NewsFragmentAdapter(getChildFragmentManager(), fragmentList, titles);vp.setAdapter(nfa);vp.setOffscreenPageLimit(2);pst.setViewPager(vp);pst.setIndicatorHeight(0);pst.setUnderlineHeight(0);pst.setShouldExpand(true);//读取文件   文件名String fileName = "channel.txt";//获得文件所在的包名String pn = getActivity().getPackageName();//如果存在频道文件则读取   否则 从网络获取if (FileUitlity.fileExists(pn + "/" + fileName)) {String ja = FileUitlity.readFileFromSdcard(pn + "/" + fileName);try {Log.d("=====", "读取文件成功");Log.d("====1=", ja);initFragment(new JSONArray(ja));} catch (JSONException e) {e.printStackTrace();}} else {new GetChannel().execute(UrlUtil.channelUrl);}}//获取频道的异步任务类public class GetChannel extends AsyncTask<String, Void, String> {@Overrideprotected String doInBackground(String... strings) {return HttpUtil.HttpGet(strings[0]);}@Overrideprotected void onPostExecute(String s) {super.onPostExecute(s);//解析频道json数据try {JSONObject jsonObject = new JSONObject(s);JSONObject body = jsonObject.getJSONObject("showapi_res_body");JSONArray ja = body.getJSONArray("channelList");if (ja.length() > 0) {String pn = getActivity().getPackageName();FileUitlity.getInstance(getActivity(), pn);String result = FileUitlity.saveFileToSdcard(pn + "/channel.txt",ja.toString());if (result.equals("ok")) {Log.d("=====", "文件保存成功");} else {Log.d("=====", "文件保存失败");}}initFragment(ja);} catch (JSONException e) {e.printStackTrace();}}}//初始化fragmentpublic void initFragment(JSONArray ja) throws JSONException {//解析完频道数据后  放入channelList中channelList = new ArrayList<>();for (int i = 0; i < ja.length(); i++) {JSONObject obj = (JSONObject) ja.get(i);String id = obj.getString("channelId");String name = obj.getString("name");HashMap map = new HashMap();map.put("id", id);map.put("name", name);channelList.add(map);titles.add(name);}//根据频道数新建fragmentfor (int i = 0; i < channelList.size(); i++) {Fragment fragment = new NewsFragment();Bundle bundle = new Bundle();//获取频道的id和name   并把他们传到NewsFragment中去bundle.putString("id", channelList.get(i).get("id"));bundle.putString("name", channelList.get(i).get("name"));//把频道的id和name放入相应的fragment中去fragment.setArguments(bundle);fragmentList.add(fragment);}pst.notifyDataSetChanged();nfa.notifyDataSetChanged();}
}

NewsFragment

public class NewsFragment extends Fragment {private PullToRefreshListView prlv;private NewsBaseAdapter nba;private List<MyNews> newsList;private NewsCacheDao newsCacheDao;private String url;private TextView tv;private int page = 1;private String id, name;//Handler要用OS包里的  Handler的声明方式不同 大括号后面要加分号private Handler handler = new Handler() {//handleMessag在主线程中运行  相当于异步任务类里的OnPostExcute()@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);//判断属于哪个线程进行实现if (msg.what == 1) {Bundle bundle = msg.getData();List list = bundle.getParcelableArrayList("cache");newsList.addAll(list);nba.notifyDataSetChanged();//tv.setText("读取缓存成功");new GetNews().execute(url);}}};public NewsFragment() {// Required empty public constructor}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragmentreturn inflater.inflate(R.layout.fragment_news, container, false);}@Overridepublic void onActivityCreated(@Nullable Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);newsCacheDao = new NewsCacheDao(getActivity());newsList = new ArrayList<>();tv = (TextView) getView().findViewById(R.id.tv);prlv = (PullToRefreshListView) getView().findViewById(R.id.prlv);nba = new NewsBaseAdapter(newsList,getActivity());prlv.setAdapter(nba);//设置上下都可以刷新prlv.setMode(PullToRefreshBase.Mode.BOTH);//注册监听prlv.setOnRefreshListener(new prlvLisen());Bundle bundle = getArguments();//接收HomeFragment中传过来的数据   这样才能知道现在处于哪个频道下  然后根据频道的id和name加载不同的数据id = bundle.getString("id");name = bundle.getString("name");url = UrlUtil.newsUrl + "?channelId=" + id+ "&channelName=" + name + "&needHtml=1";//执行线程要用run//new GetCache(id).run();new Thread(new GetCache()).start();//getCache(id);//new GetNews().execute(url);（这一句转去 getCache里写）}//读取数据库缓存 线程public class GetCache implements Runnable {//run()在子线程中运行@Overridepublic void run() {Bundle bundle = new Bundle();ArrayList<MyNews> list = newsCacheDao.searchNews(id);bundle.putParcelableArrayList("cache", list);//tv.setText("读取缓存成功");//nba.notifyDataSetChanged();//new GetNews().execute(url);Message message = new Message();//如果有需要的话先把数据放入bundle里  再放入message里//message.setData();message.setData(bundle);message.what = 1;//告诉它子线程已经执行完了  要返回子线程中去handler.sendMessage()handler.sendMessage(message);}}//加载网络数据 异步任务类public class GetNews extends AsyncTask<String, Void, String> {@Overrideprotected String doInBackground(String... strings) {return HttpUtil.HttpGet(strings[0]);}@Overrideprotected void onPostExecute(String s) {super.onPostExecute(s);//解析 新闻数据try {JSONObject obj = new JSONObject(s);JSONObject body = obj.getJSONObject("showapi_res_body");JSONObject pageBean = body.getJSONObject("pagebean");JSONArray contentList = pageBean.getJSONArray("contentlist");if (page == 1) {newsList.clear();}//在获取网络的时候清空list（防止重复） 不是清空数据库for (int i = 0; i < contentList.length(); i++) {JSONObject jo = (JSONObject) contentList.get(i);//MyNews要有一个空的构造  不然这句话报错MyNews myNews = new MyNews();myNews.setTitle(jo.getString("title"));myNews.setPubDate(jo.getString("pubDate"));myNews.setImageurls(jo.getString("imageurls"));myNews.setSource(jo.getString("source"));myNews.setHtml(jo.getString("html"));myNews.setChannelId(jo.getString("channelId"));newsCacheDao.addNews(myNews);newsList.add(myNews);}nba.notifyDataSetChanged();prlv.onRefreshComplete();} catch (JSONException e) {e.printStackTrace();}}}//    public void getCache(String id) {//        //读本地缓存
//        newsList.addAll(newsCacheDao.searchNews(id));
//        nba.notifyDataSetChanged();
//        //如果没有加载网络
//        if (newsList.size() == 0) {//            new GetNews().execute(url);
//        }
//    }//下拉上拉 监听 内部类public class prlvLisen implements PullToRefreshBase.OnRefreshListener2 {@Overridepublic void onPullDownToRefresh(PullToRefreshBase refreshView) {page = 1;url = UrlUtil.newsUrl + "?channelId=" + id+ "&channelName=" + name + "&page=" + page + "&needHtml=1";new GetNews().execute(url);}@Overridepublic void onPullUpToRefresh(PullToRefreshBase refreshView) {page++;url = UrlUtil.newsUrl + "?channelId=" + id+ "&channelName=" + name + "&page=" + page + "&needHtml=1";new GetNews().execute(url);}}

MyFragment

public class MyFragment extends Fragment {private KenBurnsView img;private ImageView collection;public MyFragment() {// Required empty public constructor}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragmentreturn inflater.inflate(R.layout.my_layout, container, false);}@Overridepublic void onActivityCreated(Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);img= (KenBurnsView) getView().findViewById(R.id.img);collection= (ImageView) getView().findViewById(R.id.collection);collection.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Intent intent=new Intent(getActivity(), CollectionActivity.class);startActivity(intent);}});}

TopicFragment（里面为天气）

public class TopicFragment extends Fragment {private RequestQueue queue;private SwipeRefreshLayout swip;private CardView card1, card2, card3;private WeatherCacheDao weatherCacheDao;public TopicFragment() {// Required empty public constructor}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragmentreturn inflater.inflate(R.layout.weather_layout, container, false);}@Overridepublic void onActivityCreated(Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);card1 = (CardView) getView().findViewById(R.id.card1);card2 = (CardView) getView().findViewById(R.id.card2);card3 = (CardView) getView().findViewById(R.id.card3);weatherCacheDao = new WeatherCacheDao(getActivity());queue = Volley.newRequestQueue(getActivity());swip = (SwipeRefreshLayout) getView().findViewById(R.id.swip);//进度条背景色swip.setProgressBackgroundColorSchemeColor(getResources().getColor(R.color.colorPrimary));swip.setColorSchemeResources(R.color.colorAccent);swip.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {@Override//下拉刷新时执行此方法   可以写加载网络。。。等命令public void onRefresh() {//.......//收起刷新进度条//swip.setRefreshing(false);//new Thread(new GetCache()).start();getWeather();}});readDatabase();}public void readDatabase() {List<Weather> list = weatherCacheDao.searchWeather();//去生成Weather的toString方法paraseList(list);}//获取天气public void getWeather() {String url = UrlUtil.weatherUrl + "?location=yantai";StringGetRequest sgr = new StringGetRequest(Request.Method.GET, url, newResponse.Listener<String>() {@Overridepublic void onResponse(String s) {if (!s.equals("")) {try {JSONObject obj = new JSONObject(s);JSONArray results = obj.getJSONArray("results");JSONArray ja1 = ((JSONObject) (results.get(0))).getJSONArray("daily");Gson gson = new Gson();List<Weather> list = gson.fromJson(ja1.toString(), new TypeToken<List<Weather>>() {}.getType());//只要一刷新就把缓存的清空掉weatherCacheDao.deleteAll();paraseList(list);//                for (int i = 0; i < results.length(); i++) {//                    JSONObject jo = results.getJSONObject(i);
//                    Weather weather = new Weather();
//                    weather.setDate(jo.getString("date"));
//                    weather.setText_day(jo.getString("text_day"));
//                    weather.setCode_day(jo.getString("code_day"));
//                    weather.setText_night(jo.getString("text_night"));
//                    weather.setCode_night(jo.getString("code_nigh"));
//                    weather.setHigh(jo.getString("high"));
//                    weather.setLow(jo.getString("low"));
//                    weather.setPrecip(jo.getString("precip"));
//                    weather.setWind_direction(jo.getString("wind_direction"));
//                    weather.setWind_direction_degree(jo.getString("wind_direction_degree"));
//                    weather.setWind_speed(jo.getString("wind_speed"));
//                    weather.setWind_scale(jo.getString("wind_scale"));
//                    weatherList.add(weather);
//                }} catch (JSONException e) {e.printStackTrace();}}swip.setRefreshing(false);}}, new Response.ErrorListener() {@Overridepublic void onErrorResponse(VolleyError volleyError) {swip.setRefreshing(false);}});sgr.putHeaders("apikey", "3f37b44e3115841957414d7c4bf6c0f5");queue.add(sgr);}//解析weatherpublic void paraseList(List<Weather> list) {for (int i = 0; i < list.size(); i++) {View view = LayoutInflater.from(getActivity()).inflate(R.layout.weather_content, null);Weather day = list.get(i);weatherCacheDao.addWeather(day);TextView date = (TextView) view.findViewById(R.id.date);TextView text_day = (TextView) view.findViewById(R.id.text_day);TextView code_day = (TextView) view.findViewById(R.id.code_day);TextView text_night = (TextView) view.findViewById(R.id.text_night);TextView code_night = (TextView) view.findViewById(R.id.code_night);TextView high = (TextView) view.findViewById(R.id.high);TextView low = (TextView) view.findViewById(R.id.low);TextView precip = (TextView) view.findViewById(R.id.precip);TextView wind_direction = (TextView) view.findViewById(R.id.wind_direction);TextView wind_direction_degree = (TextView) view.findViewById(R.id.wind_direction_degree);TextView wind_speed = (TextView) view.findViewById(R.id.wind_speed);TextView wind_scale = (TextView) view.findViewById(R.id.wind_scale);date.setText(day.getDate());text_day.setText(day.getText_day());code_day.setText(day.getCode_day());text_night.setText(day.getText_night());code_night.setText(day.getCode_night());high.setText(day.getHigh());low.setText(day.getLow());precip.setText(day.getPrecip());wind_direction.setText(day.getWind_direction());wind_direction_degree.setText(day.getWind_direction_degree());wind_scale.setText(day.getWind_scale());wind_speed.setText(day.getWind_speed());if (i == 0) {if (card1.getChildCount() > 0) {card1.removeAllViews();}card1.addView(view);}if (i == 1) {if (card2.getChildCount() > 0) {card2.removeAllViews();}card2.addView(view);}if (i == 2) {if (card3.getChildCount() > 0) {card3.removeAllViews();}card3.addView(view);}}}
}

                       **util工具类**

public class HttpUtil {public static String HttpGet(String uri){HttpURLConnection con = null;BufferedReader reader = null;InputStream is = null;StringBuilder sbd = new StringBuilder();try {URL url = new URL(uri);con = (HttpURLConnection) url.openConnection();con.setConnectTimeout(5*1000);con.setReadTimeout(5*1000);con.setRequestProperty("apikey","5b46143955a4b1ff1b470a94315625cd");con.connect();if(con.getResponseCode()==200){is = con.getInputStream();reader = new BufferedReader(new InputStreamReader(is));String strRead = null;while ((strRead = reader.readLine()) != null) {sbd.append(strRead);sbd.append("\r\n");}return sbd.toString();}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if(reader!=null){try {reader.close();} catch (IOException e) {e.printStackTrace();}}}return "";}}

public class FileUitlity {private static String ROOT_CACHE;private static FileUitlity instance = null;private FileUitlity() {}//创建文件夹public static FileUitlity getInstance(Context context, String root_dir) {if (instance == null) {if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {ROOT_CACHE = (Environment.getExternalStorageDirectory() + "/"+ root_dir + "/");} else {ROOT_CACHE = (context.getFilesDir().getAbsolutePath() + "/" + root_dir + "/");}File dir = new File(ROOT_CACHE);if (!dir.exists()) {dir.mkdirs();}instance = new FileUitlity();}return instance;}public File makeDir(String dir) {File fileDir = new File(ROOT_CACHE + dir);if (fileDir.exists()) {return fileDir;} else {fileDir.mkdirs();return fileDir;}}//判断文件是否存在SD卡public static boolean fileExists(String fileName) {String state = Environment.getExternalStorageState();if (!state.equals(Environment.MEDIA_MOUNTED)) {return false;} else {File root = Environment.getExternalStorageDirectory();File file = new File(root, fileName);return file.exists();}}//保存文件到SD卡public static String saveFileToSdcard(String fileName, String content) {String state = Environment.getExternalStorageState();if (!state.equals(Environment.MEDIA_MOUNTED)) {return "SD卡未就绪";}File root = Environment.getExternalStorageDirectory();FileOutputStream fos = null;try {fos = new FileOutputStream(root + "/" + fileName);fos.write(content.getBytes());return "ok";} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if (fos != null) {try {fos.close();} catch (IOException e) {e.printStackTrace();}}}return "";}//读取SD卡文件public static String readFileFromSdcard(String fileName) {String statue = Environment.getExternalStorageState();if (!statue.equals(Environment.MEDIA_MOUNTED)) {return "";} else {File root = Environment.getExternalStorageDirectory();BufferedReader reader = null;FileInputStream fis = null;StringBuilder sbd = new StringBuilder();try {fis = new FileInputStream(root + "/" + fileName);reader = new BufferedReader(new InputStreamReader(fis));String row = "";while ((row = reader.readLine()) != null) {sbd.append(row);}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if (reader != null) {try {reader.close();} catch (IOException e) {e.printStackTrace();}}}return sbd.toString();}}
}

public class StringGetRequest extends StringRequest {private Map<String, String> header;public StringGetRequest(int method, String url, Response.Listener<String> listener, Response.ErrorListener errorListener) {super(method, url, listener, errorListener);header = new HashMap<>();}public void putHeaders(String key, String value) {header.put(key, value);}public Map<String, String> getHeaders() throws AuthFailureError {return header;}}

public class StringPostRequest extends StringRequest {private Map<String, String> params;private Map<String, String> header;public StringPostRequest(String url, Listener<String> listener,ErrorListener errorListener) {//super实际调用了StringRequest的四参构造super(Method.POST, url, listener, errorListener);params = new HashMap<String, String>();header = new HashMap<String, String>();}@Override//回调方法   用的时候往Map里放值就可以protected Map<String, String> getParams() throws AuthFailureError {return params;}public void putParams(String key, String value) {this.params.put(key, value);}public Map<String, String> getHeaders() throws AuthFailureError {return header;}public void putHeaders(String key, String value) {this.header.put(key, value);}
}

public class UrlUtil {//获取频道的网络接口public static String channelUrl = "http://apis.baidu.com/showapi_open_bus/channel_news/channel_news";/*/获取频道对应新闻的网络接口get请求参数：channelId   ：新闻频道id，必须精确匹配channelName ：新闻频道名称，可模糊匹配title       ：新闻标题，模糊匹配page        ：页数，默认1。每页最多20条记needContent：是否需要返回正文，1为需要needHtml：是否需要返回正文的html格式，1为需要*///获取新闻的网络接口public static String newsUrl = "http://apis.baidu.com/showapi_open_bus/channel_news/search_news";/*参数名 类型  必填  参数位置    描述           默认值location   string  是       urlParam    所查询的位置     beijinglanguage  string   否       urlParam    语言             zh-Hansunit      string   否       urlParam    单位             cstart     string   否       urlParam    起始时间         0days      string   否       urlParam    天数             3*///获取天气的网络接口public static String weatherUrl = "http://apis.baidu.com/thinkpage/weather_api/suggestion";
}

public class PhotoViewPager extends ViewPager
{private float mTrans;private float mScale;/*** 最大的缩小比例*/private static final float SCALE_MAX = 0.0f;/*** 保存position与对于的View*/private HashMap<Integer, View> mChildrenViews = new LinkedHashMap<Integer, View>();/*** 滑动时左边的元素*/private View mLeft;/*** 滑动时右边的元素*/private View mRight;public PhotoViewPager(Context context, AttributeSet attrs){super(context, attrs);}@Overridepublic void onPageScrolled(int position, float positionOffset,int positionOffsetPixels){//      Log.e(TAG, "position=" + position+", positionOffset = "+positionOffset+" ,positionOffsetPixels =  " + positionOffsetPixels+" , currentPos = " + getCurrentItem());//滑动特别小的距离时，我们认为没有动，可有可无的判断float effectOffset = isSmall(positionOffset) ? 0 : positionOffset;//获取左边的ViewmLeft = findViewFromObject(position);//获取右边的ViewmRight = findViewFromObject(position + 1);// 添加切换动画效果animateStack(mLeft, mRight, effectOffset, positionOffsetPixels);super.onPageScrolled(position, positionOffset, positionOffsetPixels);}public void setObjectForPosition(View view, int position){mChildrenViews.put(position, view);}/*** 通过过位置获得对应的View* * @param position* @return*/public View findViewFromObject(int position){return mChildrenViews.get(position);}private boolean isSmall(float positionOffset){return Math.abs(positionOffset) < 0.0001;}protected void animateStack(View left, View right, float effectOffset,int positionOffsetPixels){if (right != null){/*** 缩小比例 如果手指从右到左的滑动（切换到后一个）：0.0~1.0，即从一半到最大* 如果手指从左到右的滑动（切换到前一个）：1.0~0，即从最大到一半*/mScale = (1 - SCALE_MAX) * effectOffset + SCALE_MAX;/*** x偏移量： 如果手指从右到左的滑动（切换到后一个）：0-720 如果手指从左到右的滑动（切换到前一个）：720-0*/mTrans = -getWidth() - getPageMargin() + positionOffsetPixels;right.setScaleX(mScale);right.setScaleY(mScale);right.setTranslationX(mTrans);}if (left != null){left.bringToFront();}}@Overridepublic boolean onTouchEvent(MotionEvent ev) {try {return super.onTouchEvent(ev);} catch (IllegalArgumentException ex) {ex.printStackTrace();}return false;}@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {try {return super.onInterceptTouchEvent(ev);} catch (IllegalArgumentException ex) {ex.printStackTrace();}return false;}
}

                     **布局文件**

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"tools:context="com.edu.jereh.mynews.MainActivity"><FrameLayout
        android:id="@+id/fl"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"></FrameLayout><android.support.v4.app.FragmentTabHost
        android:id="@+id/ft"android:layout_width="match_parent"android:layout_height="wrap_content"android:background="#f7f0f0"></android.support.v4.app.FragmentTabHost></LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.edu.jereh.mynews.ContentActivity"><LinearLayout
        android:id="@+id/linearLayout"android:layout_width="match_parent"android:layout_height="50dp"android:orientation="horizontal"><ImageView
            android:id="@+id/back"android:layout_width="30dp"android:layout_height="match_parent"android:layout_weight="0.1"android:src="@mipmap/back" /><TextView
            android:id="@+id/title"android:layout_width="wrap_content"android:layout_height="match_parent"android:background="@color/webViewTopBg"android:gravity="center"android:text="AAA"android:layout_weight="1"android:textSize="15sp"android:textStyle="bold" /><TextView
            android:id="@+id/collection"android:layout_width="wrap_content"android:layout_height="match_parent"android:gravity="center"android:layout_weight="1"android:text="收藏" /></LinearLayout><WebView
        android:id="@+id/wv"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_below="@+id/linearLayout"></WebView>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.edu.jereh.mynews.CollectionActivity">
<ListView
    android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/lv"></ListView>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.edu.jereh.mynews.ImgActivity">
<com.edu.jereh.mynews.view.PhotoViewPagerandroid:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/pvp">
</com.edu.jereh.mynews.view.PhotoViewPager>
</RelativeLayout

<?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"android:weightSum="1"><TextView
        android:id="@+id/title"android:layout_marginTop="5dp"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"android:text="标题" /><LinearLayout
    android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
        android:id="@+id/source"android:layout_width="match_parent"android:layout_height="50dp"android:text="新浪"android:layout_weight="1"android:gravity="center"android:layout_above="@+id/content"android:layout_toEndOf="@+id/img" /><TextView
        android:id="@+id/pubDate"android:layout_width="match_parent"android:layout_height="50dp"android:text="刚刚"android:layout_weight="1"android:gravity="center"android:layout_alignBottom="@+id/content" />
</LinearLayout>
</LinearLayout>

<?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"android:weightSum="1"><TextView
        android:id="@+id/title"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center"android:text="标题"android:layout_marginTop="5dp"android:layout_alignEnd="@+id/pubDate"android:layout_toEndOf="@+id/img"android:layout_alignParentTop="true" /><ImageView
            android:id="@+id/img"android:layout_width="100dp"android:layout_height="100dp"android:src="@mipmap/ic_launcher"android:layout_alignParentTop="true"android:layout_alignParentStart="true" /><TextView
            android:id="@+id/source"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="新浪"android:layout_alignBottom="@+id/img"android:layout_centerHorizontal="true" /><TextView
            android:id="@+id/pubDate"android:layout_width="wrap_content"android:layout_height="50dp"android:text="刚刚"android:layout_alignTop="@+id/source"android:layout_alignParentEnd="true"android:layout_alignBottom="@+id/source" />
</RelativeLayout>

<?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"android:weightSum="1"><TextView
        android:id="@+id/title"android:layout_marginTop="5dp"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"android:text="标题" />
<LinearLayout
    android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/ll1"android:orientation="horizontal"><ImageView
        android:layout_width="90dp"android:layout_height="90dp"android:layout_weight="1"android:id="@+id/img"android:src="@mipmap/ic_launcher"/><ImageView
        android:layout_width="90dp"android:layout_height="90dp"android:id="@+id/img2"android:layout_weight="1"android:src="@mipmap/ic_launcher"/></LinearLayout><LinearLayout
    android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/ll2"android:orientation="horizontal"><TextView
        android:id="@+id/source"android:layout_width="match_parent"android:layout_height="50dp"android:text="新浪"android:layout_weight="1"android:gravity="center"android:layout_above="@+id/content"android:layout_toEndOf="@+id/img" /><TextView
        android:id="@+id/pubDate"android:layout_width="match_parent"android:layout_height="50dp"android:text="刚刚"android:layout_weight="1"android:gravity="center"android:layout_alignBottom="@+id/content" />
</LinearLayout>
</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"android:weightSum="1"><TextView
        android:id="@+id/title"android:layout_marginTop="5dp"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"android:text="标题" />
<LinearLayout
    android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/ll1"android:orientation="horizontal"><ImageView
        android:layout_width="90dp"android:layout_height="90dp"android:id="@+id/img"android:layout_weight="1"android:src="@mipmap/ic_launcher"/><ImageView
        android:layout_width="90dp"android:layout_height="90dp"android:id="@+id/img2"android:layout_weight="1"android:src="@mipmap/ic_launcher"/><ImageView
        android:layout_width="90dp"android:layout_height="90dp"android:id="@+id/img3"android:layout_weight="1"android:src="@mipmap/ic_launcher"/></LinearLayout><LinearLayout
    android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/ll2"android:orientation="horizontal"><TextView
        android:id="@+id/source"android:layout_width="match_parent"android:layout_height="50dp"android:text="新浪"android:layout_weight="1"android:gravity="center"android:layout_above="@+id/content"android:layout_toEndOf="@+id/img" /><TextView
        android:id="@+id/pubDate"android:layout_width="match_parent"android:layout_height="50dp"android:text="刚刚"android:layout_weight="1"android:gravity="center"android:layout_alignBottom="@+id/content" />
</LinearLayout>
</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"><TextView
        android:id="@+id/date"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_marginTop="10dp"android:gravity="center"android:textSize="18sp"android:textStyle="bold" /><LinearLayout
        android:id="@+id/ll1"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:id="@+id/text_day"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /><TextView
            android:id="@+id/code_day"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll2"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:id="@+id/text_night"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /><TextView
            android:id="@+id/code_night"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll3"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:text="最高气温："android:textSize="14sp" /><TextView
            android:id="@+id/high"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll4"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:text="最低气温:"android:textSize="14sp" /><TextView
            android:id="@+id/low"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll5"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:text="降水概率:"android:textSize="14sp" /><TextView
            android:id="@+id/precip"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll6"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:id="@+id/wind_direction"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /><TextView
            android:id="@+id/wind_direction_degree"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll7"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:text="风速为："android:textSize="14sp" /><TextView
            android:id="@+id/wind_speed"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout><LinearLayout
        android:id="@+id/ll8"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextView
            android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:text="风力等级："android:textSize="14sp" /><TextView
            android:id="@+id/wind_scale"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:layout_weight="1"android:gravity="center"android:textSize="14sp" /></LinearLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"android:layout_width="match_parent"android:layout_height="match_parent">
<android.support.v4.widget.SwipeRefreshLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/swip"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><android.support.v7.widget.CardViewandroid:layout_width="match_parent"android:layout_height="match_parent"android:layout_marginTop="30dp"android:layout_weight="1"android:layout_margin="5dp"app:cardCornerRadius="10dp"app:cardElevation="10dp"app:contentPadding="10dp"app:cardBackgroundColor="#98e79a"android:clickable="true"android:foreground="?android:selectableItemBackground"android:id="@+id/card1"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="今日天气"/></android.support.v7.widget.CardView><android.support.v7.widget.CardViewandroid:layout_width="match_parent"android:layout_height="match_parent"android:layout_marginTop="30dp"android:layout_weight="1"android:layout_margin="5dp"app:cardCornerRadius="10dp"app:cardElevation="10dp"app:contentPadding="10dp"app:cardBackgroundColor="#7897ed"android:clickable="true"android:foreground="?android:selectableItemBackground"android:id="@+id/card2"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="明日天气"/></android.support.v7.widget.CardView><android.support.v7.widget.CardViewandroid:layout_width="match_parent"android:layout_height="match_parent"android:layout_marginTop="30dp"android:layout_weight="1"android:layout_margin="5dp"app:cardCornerRadius="10dp"app:cardElevation="10dp"app:contentPadding="10dp"app:cardBackgroundColor="#f5f562"android:clickable="true"android:foreground="?android:selectableItemBackground"android:id="@+id/card3"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="后日天气"/></android.support.v7.widget.CardView></LinearLayout>
</android.support.v4.widget.SwipeRefreshLayout>
</FrameLayout>

运行效果展示：

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