devbox
不正经
这个屌丝很懒，什么也没留下！
关注作者
热门标签
热门文章
当前位置:   article > 正文

Android基础实战之天气实战|完整代码|带实例地址_android天气预报实战演练

作者：不正经 | 2024-05-18 21:51:47

赞

踩

android天气预报实战演练

天气实战

  • 第一步

第一步，注册和风天气控制台 | 和风天气，申请key

08f828b5a3ec4905a29156bf5f29136f

查看郭林的后台天气pai接口

http://guolin.tech/api/china

  • 第二步，建立省市县实体类
  1. /**
  2.  * Description
  3.  * <p>
  4.  * id是每个实体该有的字段
  5.  * provinceName记录省的名字
  6.  * provinceCode记录省的代号
  7.  * @author qricis on 2020/9/3 14:47
  8.  * @version 1.0.0
  9.  */
  10. public class Province extends DataSupport {
  11.  
  12.     private int id;
  13.  
  14.     private String provinceName;
  15.  
  16.     private int provinceCode;
  17.  
  18.     public int getId() {
  19.         return id;
  20.     }
  21.  
  22.     public void setId(int id) {
  23.         this.id = id;
  24.     }
  25.  
  26.     public String getProvinceName() {
  27.         return provinceName;
  28.     }
  29.  
  30.     public void setProvinceName(String provinceName) {
  31.         this.provinceName = provinceName;
  32.     }
  33.  
  34.     public int getProvinceCode() {
  35.         return provinceCode;
  36.     }
  37.  
  38.     public void setProvinceCode(int provinceCode) {
  39.         this.provinceCode = provinceCode;
  40.     }
  41. }
  42.  
  43. /**
  44.  * Description
  45.  * <p>
  46.  * id是每个实体类都应该有的字段
  47.  * cityName记录市的名字
  48.  * cityCode记录市的代码
  49.  * provinceId记录当前市所属省的id值
  50.  * @author qricis on 2020/9/3 14:47
  51.  * @version 1.0.0
  52.  */
  53. public class City extends DataSupport {
  54.  
  55.     private int id;
  56.  
  57.     private String cityName;
  58.  
  59.     private int citycode;
  60.  
  61.     private int provinceId;
  62.  
  63.     public int getId() {
  64.         return id;
  65.     }
  66.  
  67.     public void setId(int id) {
  68.         this.id = id;
  69.     }
  70.  
  71.     public String getCityName() {
  72.         return cityName;
  73.     }
  74.  
  75.     public void setCityName(String cityName) {
  76.         this.cityName = cityName;
  77.     }
  78.  
  79.     public int getCitycode() {
  80.         return citycode;
  81.     }
  82.  
  83.     public void setCitycode(int citycode) {
  84.         this.citycode = citycode;
  85.     }
  86.  
  87.     public int getProvinceId() {
  88.         return provinceId;
  89.     }
  90.  
  91.     public void setProvinceId(int provinceId) {
  92.         this.provinceId = provinceId;
  93.     }
  94. }
  95.  
  96. /**
  97.  * Description
  98.  * <p>
  99.  * id是每个实体类都应该有的字段
  100.  * countyName记录县的名字
  101.  * weatherId记录县的天气代码
  102.  * cityId记录当前县所属市的id
  103.  * @author qricis on 2020/9/3 14:47
  104.  * @version 1.0.0
  105.  */
  106. public class County extends DataSupport {
  107.  
  108.     private int id;
  109.  
  110.     private String countyName;
  111.  
  112.     private int countyCode;
  113.  
  114.     private int cityId;
  115.  
  116.     public int getId() {
  117.         return id;
  118.     }
  119.  
  120.     public void setId(int id) {
  121.         this.id = id;
  122.     }
  123.  
  124.     public String getCountyName() {
  125.         return countyName;
  126.     }
  127.  
  128.     public void setCountyName(String countyName) {
  129.         this.countyName = countyName;
  130.     }
  131.  
  132.     public int getCountyCode() {
  133.         return countyCode;
  134.     }
  135.  
  136.     public void setCountyCode(int countyCode) {
  137.         this.countyCode = countyCode;
  138.     }
  139.  
  140.     public int getCityId() {
  141.         return cityId;
  142.     }
  143.  
  144.     public void setCityId(int cityId) {
  145.         this.cityId = cityId;
  146.     }
  147. }
  • 第三步，配置litepal
  1. <litepal>
  2.  
  3. 		    <!--  设置数据库名为cool_weather，数据库版本1，并将三个实体类映射到列表当中  -->
  4. 		    <dbname value="cool_weather" />
  5.  
  6. 		    <version value="1" />
  7.  
  8. 		    <list>
  9. 		        <mapping class="com.coolweather.android.db.Province" />
  10. 		        <mapping class="com.coolweather.android.db.City" />
  11. 		        <mapping class="com.coolweather.android.db.County" />
  12. 		    </list>
  13.  
  14. </litepal>
  • 第四步，编写与服务端交互的类HttpUtil
  1. /**
  2.  * Description
  3.  * <p>
  4.  * 与服务器进行交互
  5.  * @author qricis on 2020/9/3 15:46
  6.  * @version 1.0.0
  7.  */
  8. public class HttpUtil {
  9.  
  10.     public static void sendOkHttpRequest(String address, okhttp3.Callback callback) {
  11.         OkHttpClient client = new OkHttpClient();
  12.         Request request = new Request.Builder().url(address).build();
  13.         client.newCall(request).enqueue(callback);
  14.     }
  15.  
  16. }
  • 第五步，编写一个工具类用来处理从服务器端获取到的数据Utility
  1. /**
  2.  * Description
  3.  * <p>
  4.  * 解析服务器返回的数据
  5.  * @author qricis on 2020/9/3 15:53
  6.  * @version 1.0.0
  7.  */
  8. public class Utility {
  9.  
  10.     /**
  11.      * 解析和处理服务器返回的省级数据
  12.      * */
  13.     public static boolean handleProvinceResponse(String response) {
  14.         if (!TextUtils.isEmpty(response)) {
  15.             try {
  16.                 JSONArray allProvinces = new JSONArray(response);
  17.                 for (int i = 0; i < allProvinces.length(); i++) {
  18.                     JSONObject provinceObject = allProvinces.getJSONObject(i);
  19.                     Province province = new Province();
  20.                     province.setProvinceName(provinceObject.getString("name"));
  21.                     province.setProvinceCode(provinceObject.getInt("id"));
  22.                     province.save();
  23.                 }
  24.                 return true;
  25.             } catch (JSONException e) {
  26.                 e.printStackTrace();
  27.             }
  28.         }
  29.         return false;
  30.     }
  31.  
  32.     /**
  33.      * 解析和处理服务器返回的市级数据
  34.      * */
  35.     public static boolean handleCityResponse(String response, int provinceId) {
  36.         if (!TextUtils.isEmpty(response)) {
  37.             try {
  38.                 JSONArray allCities = new JSONArray(response);
  39.                 for (int i = 0; i < allCities.length(); i++) {
  40.                     JSONObject cityObject = allCities.getJSONObject(i);
  41.                     City city = new City();
  42.                     city.setCityName(cityObject.getString("name"));
  43.                     city.setCitycode(cityObject.getInt("id"));
  44.                     city.setProvinceId(provinceId);
  45.                     city.save();
  46.                 }
  47.                 return true;
  48.             } catch (JSONException e) {
  49.                 e.printStackTrace();
  50.             }
  51.         }
  52.         return false;
  53.     }
  54.  
  55.     /**
  56. 	 * 解析和处理服务器返回的县级数据
  57. 	 * */
  58.     public static boolean handleCountyResponse(String response, int cityId) {
  59.         if (!TextUtils.isEmpty(response)) {
  60.             try {
  61.                 JSONArray allCounties = new JSONArray(response);
  62.                 for (int i = 0; i < allCounties.length(); i++) {
  63.                     JSONObject countyObject = allCounties.getJSONObject(i);
  64.                     County county = new County();
  65.                     county.setCountyName(countyObject.getString("name"));
  66.                     county.setCountyCode(countyObject.getInt("id"));
  67.                     county.setCityId(cityId);
  68.                     county.save();
  69.                 }
  70.                 return true;
  71.             } catch (JSONException e) {
  72.                 e.printStackTrace();
  73.             }
  74.         }
  75.         return false;
  76.     }
  77.  
  78. }
  • 第六步，编写选择布局choose_area
  1. <!-- 定义一个展示所有省市县的碎片 -->
  2. <LinearLayout
  3. 		    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 		    android:layout_width="match_parent"
  5. 		    android:layout_height="match_parent"
  6. 		    android:orientation="vertical"
  7. 		    android:background="#fff">
  8.  
  9.     <RelativeLayout
  10. 		        android:layout_width="match_parent"
  11. 		        android:layout_height="?attr/actionBarSize"
  12. 		        android:background="?attr/colorPrimary">
  13.  
  14. 	        <TextView
  15. 		            android:id="@+id/area_tv_title"
  16. 		            android:layout_width="wrap_content"
  17. 		            android:layout_height="wrap_content"
  18. 		            android:layout_centerInParent="true"
  19. 		            android:textColor="#fff"
  20. 		            android:textSize="20sp"/>
  21.  
  22.         	<Button
  23. 		            android:id="@+id/area_btn_back"
  24. 		            android:layout_width="25dp"
  25. 		            android:layout_height="25dp"
  26. 		            android:layout_marginLeft="10dp"
  27. 		            android:layout_marginStart="10dp"
  28. 		            android:layout_alignParentLeft="true"
  29. 		            android:layout_alignParentStart="true"
  30. 		            android:layout_centerVertical="true"
  31. 		            android:background="@drawable/area_btn_back"
  32. 		             />
  33.     </RelativeLayout>
  34.  
  35. 	<ListView
  36. 		        android:id="@+id/area_list_view"
  37. 		        android:layout_width="match_parent"
  38. 		        android:layout_height="match_parent" />
  39. </LinearLayout>
  • 第七步，编写用于遍历省市县数据的碎片ChooseAreaFragment
  1. /**
  2.  * Description
  3.  * <p>
  4.  * 用于遍历省市县数据的碎片ChooseAreaFragment
  5.  * @author qricis on 2020/9/3 17:25
  6.  * @version 1.0.0
  7.  */
  8. public class ChooseAreaFragment extends Fragment {
  9.  
  10.     public static final int LEVEL_PROVINCE = 0;
  11.  
  12.     public static final int LEVEL_CITY = 1;
  13.  
  14.     public static final int LEVEL_COUNTY = 2;
  15.  
  16.     private ProgressDialog mProgressDialog;
  17.  
  18.     private TextView mTitleText;
  19.  
  20.     private Button mBackButton;
  21.  
  22.     private ListView mListView;
  23.  
  24.     private ArrayAdapter<String> mStringArrayAdapter;
  25.  
  26.     private List<String> mDataList = new ArrayList<>();
  27.  
  28.     /**
  29.      * 省列表
  30.      * */
  31.     private List<Province> mProvinceList;
  32.  
  33.     /**
  34.      * 市列表
  35.      * */
  36.     private List<City> mCityList;
  37.  
  38.     /**
  39.      * 县列表
  40.      * */
  41.     private List<County> mCountyList;
  42.  
  43.     /**
  44.      * 选中的省份
  45.      * */
  46.     private Province mSelectedProvince;
  47.  
  48.     /**
  49.      * 选中的城市
  50.      * */
  51.     private City mSelectedCity;
  52.  
  53.     /**
  54.      * 当前选中的级别
  55.      * */
  56.     private int mCurrentLevel;
  57.  
  58.     /**
  59.      * 获取控件实例，初始化mStringArrayAdapter，并将之设置为ListView的适配器
  60.      * */
  61.     @Nullable
  62.     @Override
  63.     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
  64.         View view = inflater.inflate(R.layout.choose_area,container,false);
  65.         mTitleText = view.findViewById(R.id.area_tv_title);
  66.         mBackButton = view.findViewById(R.id.area_btn_back);
  67.         mListView = view.findViewById(R.id.area_list_view);
  68.         mStringArrayAdapter = new ArrayAdapter<>(getContext(),android.R.layout.simple_list_item_1,mDataList);
  69.         mListView.setAdapter(mStringArrayAdapter);
  70.         return view;
  71.     }
  72.  
  73.     /**
  74.      * 给ListView和Button设置点击事件
  75.      * */
  76.     @Override
  77.     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
  78.         super.onActivityCreated(savedInstanceState);
  79.         mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  80.             @Override
  81.             public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
  82.                 if (mCurrentLevel == LEVEL_PROVINCE) {
  83.                     mSelectedProvince = mProvinceList.get(position);
  84.                     queryCities();
  85.                 } else if (mCurrentLevel == LEVEL_CITY) {
  86.                     mSelectedCity = mCityList.get(position);
  87.                     queryCounties();
  88.                 }
  89.             }
  90.         });
  91.         mBackButton.setOnClickListener(new View.OnClickListener() {
  92.             @Override
  93.             public void onClick(View view) {
  94.                 if (mCurrentLevel == LEVEL_COUNTY) {
  95.                     queryCities();
  96.                 } else if (mCurrentLevel == LEVEL_CITY) {
  97.                     queryProvinces();
  98.                 }
  99.             }
  100.         });
  101.         queryProvinces();
  102.     }
  103.  
  104.     /**
  105.      * 查询全国所有的省，优先从数据库查询，如果没有查询到再去服务器查询
  106.      * */
  107.     private void queryProvinces() {
  108.         mTitleText.setText("中国");
  109.         mBackButton.setVisibility(View.GONE);
  110.         mProvinceList = DataSupport.findAll(Province.class);
  111.         if (mProvinceList.size() > 0) {
  112.             mDataList.clear();
  113.             for (Province province : mProvinceList) {
  114.                 mDataList.add(province.getProvinceName());
  115.             }
  116.             mStringArrayAdapter.notifyDataSetChanged();
  117.             mListView.setSelection(0);
  118.             mCurrentLevel = LEVEL_PROVINCE;
  119.         } else {
  120.             String address = "http://guolin.tech/api/china";
  121.             queryFromServer(address,"province");
  122.         }
  123.     }
  124.  
  125.     /**
  126.      * 查询全国所有的市，优先从数据库查询，如果没有查询到再去服务器查询
  127.      * */
  128.     private void queryCities() {
  129.         mTitleText.setText(mSelectedProvince.getProvinceName());
  130.         mBackButton.setVisibility(View.VISIBLE);
  131.         mCityList = DataSupport.where("provinceid = ?", String.valueOf(mSelectedProvince.getId())).find(City.class);
  132.         if (mCityList.size() > 0) {
  133.             mDataList.clear();
  134.             for (City city : mCityList) {
  135.                 mDataList.add(city.getCityName());
  136.             }
  137.             mStringArrayAdapter.notifyDataSetChanged();
  138.             mListView.setSelection(0);
  139.             mCurrentLevel = LEVEL_CITY;
  140.         } else {
  141.             int provinceCode = mSelectedProvince.getProvinceCode();
  142.             String address = "http://guolin.tech/api/china/" + provinceCode;
  143.             queryFromServer(address,"city");
  144.         }
  145.     }
  146.  
  147.     /**
  148.      * 查询全国所有的县，优先从数据库查询，如果没有查询到再去服务器查询
  149.      * */
  150.     private void queryCounties() {
  151.         mTitleText.setText(mSelectedCity.getCityName());
  152.         mBackButton.setVisibility(View.VISIBLE);
  153.         mCountyList = DataSupport.where("cityid = ?", String.valueOf(mSelectedCity.getId())).find(County.class);
  154.         if (mCountyList.size() > 0) {
  155.             mDataList.clear();
  156.             for (County county : mCountyList) {
  157.                 mDataList.add(county.getCountyName());
  158.             }
  159.             mStringArrayAdapter.notifyDataSetChanged();
  160.             mListView.setSelection(0);
  161.             mCurrentLevel = LEVEL_COUNTY;
  162.         } else {
  163.             int provinceCode = mSelectedProvince.getProvinceCode();
  164.             int cityCode = mSelectedCity.getCitycode();
  165.             String address = "http://guolin.tech/api/china/" + provinceCode + "/" + cityCode;
  166.             queryFromServer(address,"county");
  167.         }
  168.     }
  169.  
  170.     /**
  171.      * 根据传入的地址和类型从服务器上查询省市县数据
  172.      * */
  173.     private void queryFromServer(String address, final String type) {
  174.         showProgressDialog();
  175.         HttpUtil.sendOkHttpRequest(address, new Callback() {
  176.             @Override
  177.             public void onFailure(@NotNull Call call, @NotNull IOException e) {
  178.                 // 通过runOnUiThread回到主线程处理逻辑
  179.                 getActivity().runOnUiThread(new Runnable() {
  180.                     @Override
  181.                     public void run() {
  182.                         closeProgressDialog();
  183.                         Toast.makeText(getContext(),"加载失败",Toast.LENGTH_SHORT).show();
  184.                     }
  185.                 });
  186.             }
  187.  
  188.             @Override
  189.             public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
  190.                 String responseText = response.body().string();
  191.                 boolean result = false;
  192.                 if ("province".equals(type)) {
  193.                     result = Utility.handleProvinceResponse(responseText);
  194.                 } else if ("city".equals(type)) {
  195.                     result = Utility.handleCityResponse(responseText,mSelectedProvince.getId());
  196.                 } else if ("county".equals(type)) {
  197.                     result = Utility.handleCountyResponse(responseText,mSelectedCity.getId());
  198.                 }
  199.                 if (result) {
  200.                     getActivity().runOnUiThread(new Runnable() {
  201.                         @Override
  202.                         public void run() {
  203.                             closeProgressDialog();
  204.                             switch (type) {
  205.                                 case "province":
  206.                                     queryProvinces();
  207.                                     break;
  208.                                 case "city":
  209.                                     queryCities();
  210.                                     break;
  211.                                 case "county":
  212.                                     queryCounties();
  213.                                     break;
  214.                             }
  215.                         }
  216.                     });
  217.                 }
  218.             }
  219.         });
  220.     }
  221.  
  222.     /**
  223.      * 显示对话框
  224.      * */
  225.     private void showProgressDialog() {
  226.         if (mProgressDialog == null) {
  227.             mProgressDialog = new ProgressDialog(getActivity());
  228.  
  229.             // 这里的话参数依次为,上下文,标题,内容,是否显示进度(flase表示显示进度),是否可以用取消按钮关闭
  230.             // ProgressDialog.show(getActivity(), "资源加载中", "资源加载中,请稍后...",false,false);
  231.             // setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)这里是设置进度条的风格,HORIZONTAL是水平进度条,SPINNER是圆形进度条
  232.             mProgressDialog.setTitle("资源加载中");
  233.             mProgressDialog.setMessage("正在加载，请稍后...");
  234.             mProgressDialog.setCanceledOnTouchOutside(false);
  235.         }
  236.         mProgressDialog.show();
  237.     }
  238.  
  239.     /**
  240.      * 关闭进度对话框
  241.      * */
  242.     private void closeProgressDialog() {
  243.         if (mProgressDialog != null) {
  244.             mProgressDialog.dismiss();
  245.         }
  246.     }
  247. }
  • 第八步，修改activity_main，使得碎片依附于活动显示
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3. 		    xmlns:tools="http://schemas.android.com/tools"
  4. 		    android:layout_width="match_parent"
  5. 		    android:layout_height="match_parent"
  6. 		    tools:context=".activity.MainActivity">
  7.  
  8. 		<fragment
  9. 		        android:id="@+id/area_fragment_choose"
  10. 		        android:name="com.coolweather.android.activity.ChooseAreaFragment"
  11. 		        android:layout_width="match_parent"
  12. 		        android:layout_height="match_parent"/>
  13.  
  14. </FrameLayout>
  • 第九步，设置http的访问权限，新建xml/network_security_config
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <network-security-config>
  3. 	<base-config cleartextTrafficPermitted="true" />
  4. </network-security-config>
  • 第十步，修改Manifest
  1. <!-- 配置LitePalApplication -->
  2. 	    <application
  3. 	        android:name="org.litepal.LitePalApplication"
  4. 	        android:networkSecurityConfig="@xml/network_security_config"
  5. 	        android:allowBackup="true"
  6. 	        android:icon="@mipmap/ic_launcher"
  7. 	        android:label="@string/app_name"
  8. 	        android:roundIcon="@mipmap/ic_launcher_round"
  9. 	        android:supportsRtl="true"
  10. 	        android:theme="@style/AppTheme"
  11. 	        tools:targetApi="n">
  12. 	        <activity android:name=".activity.MainActivity">
  13. 	            <intent-filter>
  14. 	                <action android:name="android.intent.action.MAIN" />
  15.  
  16. 	                <category android:name="android.intent.category.LAUNCHER" />
  17. 	            </intent-filter>
  18. 	        </activity>
  19. 	    </application>
  • 第十一步，查看天气json数据

http://guolin.tech/api/weather?cityid=CN101010100&key=08f828b5a3ec4905a29156bf5f29136fhttp://guolin.tech/api/weather?cityid=CN101010100&key=08f828b5a3ec4905a29156bf5f29136f

  • 返回值
  1. {"HeWeather":[{
  2. 				"basic":{"cid":"CN101010100","location":"北京","parent_city":"北京","admin_area":"北京","cnty":"中国","lat":"25.04060936","lon":"102.71224976","tz":"+8.00","city":"北京","id":"CN101010100","update":{"loc":"2020-09-04 10:52","utc":"2020-09-04 02:52"}},
  3. 				"update":{"loc":"2020-09-04 10:52","utc":"2020-09-04 02:52"},
  4. 				"status":"ok",
  5. 				"now":{"cloud":"0","cond_code":"100","cond_txt":"晴","fl":"19","hum":"34","pcpn":"0.0","pres":"1018","tmp":"21","vis":"16","wind_deg":"149","wind_dir":"东南风","wind_sc":"2","wind_spd":"10","cond":{"code":"100","txt":"晴"}},
  6. 				"daily_forecast":[
  7. 					{"date":"2020-09-05","cond":{"txt_d":"晴"},"tmp":{"max":"24","min":"7"}},
  8. 					{"date":"2020-09-06","cond":{"txt_d":"晴"},"tmp":{"max":"26","min":"8"}},
  9. 					{"date":"2020-09-07","cond":{"txt_d":"多云"},"tmp":{"max":"25","min":"10"}},
  10. 					{"date":"2020-09-08","cond":{"txt_d":"阴"},"tmp":{"max":"27","min":"7"}},
  11. 					{"date":"2020-09-09","cond":{"txt_d":"晴"},"tmp":{"max":"28","min":"9"}},
  12. 					{"date":"2020-09-10","cond":{"txt_d":"多云"},"tmp":{"max":"26","min":"11"}}],
  13. 				"aqi":{"city":{"aqi":"47","pm25":"28","qlty":"优"}},
  14. 				"suggestion":{
  15. 					"comf":{"type":"comf","brf":"舒适","txt":"白天不太热也不太冷，风力不大，相信您在这样的天气条件下，应会感到比较清爽和舒适。"},
  16. 					"sport":{"type":"sport","brf":"较适宜","txt":"天气较好，户外运动请注意防晒。推荐您进行室内运动。"},
  17. 					"cw":{"type":"cw","brf":"较适宜","txt":"较适宜洗车，未来一天无雨，风力较小，擦洗一新的汽车至少能保持一天。"}},
  18. 				"msg":"所有天气数据均为模拟数据，仅用作学习目的使用，请勿当作真实的天气预报软件来使用。"
  19. 			}]}
  • 简化版

basic、now、daily_forecast、aqi、suggestion的内部又有其他的内容，因此我们可以将这5个部分定义成5个实体类

  1. {
  2.     "HeWeather":[
  3.         {
  4.             "basic":{},
  5.             "status":"ok",
  6.             "now":{},
  7.             "daily_forecast":[],
  8.             "aqi":{},
  9.             "suggestion":{},
  10.         }
  11.     ]
  12. }

basic中，city表示城市名，id表示城市对应的天气update表示天气更新时间

  1. "basic":{
  2.     "city":"北京",
  3.     "id":"CN101010100",
  4.     "update":{
  5.         "loc":"2020-09-04 10:52",
  6.         "utc":"2020-09-04 02:52"
  7.         }
  8. }
  • 实体类
  1. public class Basic {
  2.  
  3.     @SerializedName("city")
  4.     public String cityName;
  5.  
  6.     @SerializedName("id")
  7.     public String weatherId;
  8.  
  9.     @SerializedName("update")
  10.     public Update update;
  11.  
  12.     public class Update {
  13.  
  14.         @SerializedName("loc")
  15.         public String updateTime;
  16.     }
  17.  
  18. }
  • aqi中
  1. "aqi":{
  2.     "city":{
  3.         "aqi":"47",
  4.         "pm25":"28",
  5.         "qlty":"优"
  6.         }
  7. }
  • 实体类
  1. public class AQI {
  2.  
  3.     @SerializedName("city")
  4.     public AQICity mAQICity;
  5.  
  6.     public class AQICity {
  7.  
  8.         public String aqi;
  9.  
  10.         public String pm25;
  11.  
  12.     }
  13. }

now

  1. "now":{
  2.     "tmp":"21",
  3.     "cond":{
  4.         "code":"100",
  5.         "txt":"晴"
  6.         }
  7. }

实体类

  1. public class Now {
  2.  
  3.     @SerializedName("tmp")
  4.     public String temperature;
  5.  
  6.     @SerializedName("cond")
  7.     public More more;
  8.  
  9.     public class More {
  10.  
  11.         @SerializedName("txt")
  12.         public String info;
  13.     }
  14. }

suggestipon

"suggestion":{ "comf":{ "type":"comf", "brf":"舒适", "txt":"白天不太热也不太冷，风力不大，相信您在这样的天气条件下，应会感到比较清爽和舒适。" }, "sport":{ "type":"sport", "brf":"较适宜", "txt":"天气较好，户外运动请注意防晒。推荐您进行室内运动。" }, "cw":{ "type":"cw", "brf":"较适宜", "txt":"较适宜洗车，未来一天无雨，风力较小，擦洗一新的汽车至少能保持一天。" } }

实体类

  1. public class Suggestion {
  2.  
  3.     @SerializedName("comf")
  4.     public Comfort mComfort;
  5.  
  6.     @SerializedName("cw")
  7.     public CarWash mCarWash;
  8.  
  9.     @SerializedName("sport")
  10.     public Sport mSport;
  11.  
  12.     public static class Comfort {
  13.  
  14.         @SerializedName("txt")
  15.         public String info;
  16.  
  17.     }
  18.  
  19.     public static class CarWash {
  20.  
  21.         @SerializedName("txt")
  22.         public String info;
  23.  
  24.     }
  25.  
  26.     public static class Sport {
  27.  
  28.         @SerializedName("txt")
  29.         public String info;
  30.  
  31.     }
  32.  
  33. }

daily_forecast

  1. "daily_forecast":[
  2.     {
  3.         "date":"2020-09-05",
  4.         "cond":{
  5.             "txt_d":"晴"
  6.             },
  7.         "tmp":{
  8.             "max":"24",
  9.             "min":"7"
  10.             }
  11.     },
  12.     {
  13.         "date":"2020-09-06",
  14.         "cond":{
  15.             "txt_d":"晴"
  16.             },
  17.         "tmp":{
  18.             "max":"26",
  19.             "min":"8"
  20.             }
  21.     },
  22.     ...
  23. ]

实体类

  1. public class Forecast {
  2.  
  3.     public String date;
  4.  
  5.     @SerializedName("tmp")
  6.     public Temperature mTemperature;
  7.  
  8.     @SerializedName("cond")
  9.     public More mMore;
  10.  
  11.     public static class Temperature {
  12.  
  13.         public String max;
  14.  
  15.         public String min;
  16.  
  17.     }
  18.  
  19.     public static class More {
  20.  
  21.         @SerializedName("txt")
  22.         public String info;
  23.     }
  24.  
  25. }

weather

  1. public class Weather {
  2.  
  3.     public String status;
  4.  
  5.     @SerializedName("basic")
  6.     public Basic mBasic;
  7.  
  8.     @SerializedName("aqi")
  9.     public AQI mAQI;
  10.  
  11.     @SerializedName("now")
  12.     public Now mNow;
  13.  
  14.     @SerializedName("suggestion")
  15.     public Suggestion mSuggestion;
  16.  
  17.     @SerializedName("daily_forecast")
  18.     public List<Forecast> mForecastList;
  19. }

第十二步，编写天气界面，由于模块较多，分开写，最后include进来

  1. <?xml version="1.0" encoding="utf-8"?>
  2. 		<!--将所有的子布局加载进来显示-->
  3. 		<FrameLayout
  4. 		    xmlns:android="http://schemas.android.com/apk/res/android"
  5. 		    xmlns:app="http://schemas.android.com/apk/res-auto"
  6. 		    xmlns:tools="http://schemas.android.com/tools"
  7. 		    android:layout_width="match_parent"
  8. 		    android:layout_height="match_parent"
  9. 		    tools:context=".activity.WeatherActivity"
  10. 		    android:background="@color/colorPrimary">
  11.  
  12. 		    <ScrollView
  13. 		        android:id="@+id/weather_layout"
  14. 		        android:layout_width="match_parent"
  15. 		        android:layout_height="match_parent"
  16. 		        android:scrollbars="none"
  17. 		        android:overScrollMode="never">
  18.  
  19. 		        <LinearLayout
  20. 		            android:layout_width="match_parent"
  21. 		            android:layout_height="wrap_content"
  22. 		            android:orientation="vertical">
  23.  
  24. 		            <include layout="@layout/weather_title"/>
  25.  
  26. 		            <include layout="@layout/weather_now"/>
  27.  
  28. 		            <include layout="@layout/weather_forecast"/>
  29.  
  30. 		            <include layout="@layout/weather_aqi"/>
  31.  
  32. 		            <include layout="@layout/weather_suggestion"/>
  33. 		        </LinearLayout>
  34. 		    </ScrollView>
  35. 		</FrameLayout>

weather_title

  1. <?xml version="1.0" encoding="utf-8"?>
  2. 			<!--头布局，用于居中显示城市名，居右显示更新时间-->
  3. 			<RelativeLayout
  4. 			    xmlns:android="http://schemas.android.com/apk/res/android"
  5. 			    android:layout_width="match_parent"
  6. 			    android:layout_height="?attr/actionBarSize">
  7.  
  8.  
  9. 			    <TextView
  10. 			        android:id="@+id/weather_title_city"
  11. 			        android:layout_width="wrap_content"
  12. 			        android:layout_height="wrap_content"
  13. 			        android:layout_centerInParent="true"
  14. 			        android:textColor="#fff"
  15. 			        android:textSize="20sp"/>
  16.  
  17. 			    <TextView
  18. 			        android:id="@+id/weather_title_update_time"
  19. 			        android:layout_width="wrap_content"
  20. 			        android:layout_height="wrap_content"
  21. 			        android:layout_marginRight="10dp"
  22. 			        android:layout_marginEnd="10dp"
  23. 			        android:layout_alignParentRight="true"
  24. 			        android:layout_alignParentEnd="true"
  25. 			        android:layout_centerVertical="true"
  26. 			        android:textColor="#fff"
  27. 			        android:textSize="16sp" />
  28. 			</RelativeLayout>

weather_now

  1. <!--当前天气信息的布局，用于显示当前气温和天气概况-->
  2. 			<LinearLayout
  3. 			    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 			    android:layout_width="match_parent"
  5. 			    android:layout_height="wrap_content"
  6. 			    android:orientation="vertical"
  7. 			    android:layout_margin="15dp">
  8.  
  9. 			    <TextView
  10. 			        android:id="@+id/weather_now_degree_text"
  11. 			        android:layout_width="wrap_content"
  12. 			        android:layout_height="wrap_content"
  13. 			        android:layout_gravity="end"
  14. 			        android:textColor="#fff"
  15. 			        android:textSize="60sp"/>
  16.  
  17. 			    <TextView
  18. 			        android:id="@+id/weather_now_info_text"
  19. 			        android:layout_width="wrap_content"
  20. 			        android:layout_height="wrap_content"
  21. 			        android:layout_gravity="end"
  22. 			        android:textColor="#fff"
  23. 			        android:textSize="20sp"/>
  24. 			</LinearLayout>

weather_forecast

  1. <!--未来几天天气的布局,用于显示未来几天天气，包含一个标题和用于显示未来几天天气信息的布局，无任何内容，因为要动态添加-->
  2. 			<LinearLayout
  3. 			    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 			    android:layout_width="match_parent"
  5. 			    android:layout_height="wrap_content"
  6. 			    android:orientation="vertical"
  7. 			    android:layout_margin="15dp"
  8. 			    android:background="#8000">
  9.  
  10. 			    <TextView
  11. 			        android:id="@+id/weather_forecast_title"
  12. 			        android:layout_width="wrap_content"
  13. 			        android:layout_height="wrap_content"
  14. 			        android:layout_marginLeft="15dp"
  15. 			        android:layout_marginStart="15dp"
  16. 			        android:layout_marginTop="15dp"
  17. 			        android:text="@string/weather_forecast_text_view"
  18. 			        android:textColor="#fff"
  19. 			        android:textSize="20sp" />
  20.  
  21. 			    <LinearLayout
  22. 			        android:id="@+id/weather_forecast_layout"
  23. 			        android:layout_width="match_parent"
  24. 			        android:layout_height="wrap_content"
  25. 			        android:orientation="vertical"/>
  26. 			</LinearLayout>

item_forecast

  1. <!--用于显示天气预报日期、天气概况、最高温、最低温-->
  2. 				<LinearLayout
  3. 				    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 				    android:layout_width="match_parent"
  5. 				    android:layout_height="wrap_content"
  6. 				    android:layout_margin="15dp">
  7.  
  8. 				    <TextView
  9. 				        android:id="@+id/item_forecast_data_text"
  10. 				        android:layout_width="0dp"
  11. 				        android:layout_height="wrap_content"
  12. 				        android:layout_weight="2"
  13. 				        android:layout_gravity="center_vertical"
  14. 				        android:textColor="#fff"/>
  15.  
  16. 				    <TextView
  17. 				        android:id="@+id/item_forecast_info_text"
  18. 				        android:layout_width="0dp"
  19. 				        android:layout_height="wrap_content"
  20. 				        android:layout_weight="1"
  21. 				        android:layout_gravity="center_vertical"
  22. 				        android:gravity="center"
  23. 				        android:textColor="#fff" />
  24.  
  25. 				    <TextView
  26. 				        android:id="@+id/item_forecast_max_text"
  27. 				        android:layout_width="0dp"
  28. 				        android:layout_height="wrap_content"
  29. 				        android:layout_weight="1"
  30. 				        android:layout_gravity="center_vertical"
  31. 				        android:gravity="right"
  32. 				        android:textColor="#fff" />
  33.  
  34. 				    <TextView
  35. 				        android:id="@+id/item_forecast_min_text"
  36. 				        android:layout_width="0dp"
  37. 				        android:layout_height="wrap_content"
  38. 				        android:layout_weight="1"
  39. 				        android:layout_gravity="center_vertical"
  40. 				        android:gravity="right"
  41. 				        android:textColor="#fff" />
  42. 				</LinearLayout>

weather_aqi

  1. <!--空气质量信息的布局，这里用于显示AQI指数和PM25指数-->
  2. 			<LinearLayout
  3. 			    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 			    android:layout_width="match_parent"
  5. 			    android:layout_height="wrap_content"
  6. 			    android:layout_margin="15dp"
  7. 			    android:background="#8000"
  8. 			    android:orientation="vertical">
  9.  
  10. 			    <TextView
  11. 			        android:id="@+id/weather_aqi_title"
  12. 			        android:layout_width="wrap_content"
  13. 			        android:layout_height="wrap_content"
  14. 			        android:layout_marginLeft="15dp"
  15. 			        android:layout_marginStart="15dp"
  16. 			        android:layout_marginTop="15dp"
  17. 			        android:text="@string/weather_aqi_title"
  18. 			        android:textColor="#fff"
  19. 			        android:textSize="20sp" />
  20.  
  21. 			    <LinearLayout
  22. 			        android:layout_width="match_parent"
  23. 			        android:layout_height="wrap_content"
  24. 			        android:orientation="horizontal"
  25. 			        android:layout_margin="15dp"
  26. 			        android:baselineAligned="false">
  27.  
  28. 			            <LinearLayout
  29. 			                android:layout_width="0dp"
  30. 			                android:layout_weight="1"
  31. 			                android:layout_height="wrap_content"
  32. 			                android:orientation="vertical">
  33.  
  34. 			                <TextView
  35. 			                    android:id="@+id/weather_aqi_aqi_text"
  36. 			                    android:layout_width="wrap_content"
  37. 			                    android:layout_height="wrap_content"
  38. 			                    android:layout_gravity="center"
  39. 			                    android:textColor="#fff"
  40. 			                    android:textSize="40sp"/>
  41.  
  42. 			                <TextView
  43. 			                    android:id="@+id/weather_aqi_aqi_info"
  44. 			                    android:layout_width="wrap_content"
  45. 			                    android:layout_height="wrap_content"
  46. 			                    android:layout_gravity="center"
  47. 			                    android:textColor="#fff"
  48. 			                    android:text="@string/weather_aqi_aqi_info" />
  49. 			            </LinearLayout>
  50.  
  51. 			            <LinearLayout
  52. 			                android:layout_width="0dp"
  53. 			                android:layout_weight="1"
  54. 			                android:layout_height="wrap_content"
  55. 			                android:orientation="vertical">
  56.  
  57. 			                <TextView
  58. 			                    android:id="@+id/weather_aqi_pm25_text"
  59. 			                    android:layout_width="wrap_content"
  60. 			                    android:layout_height="wrap_content"
  61. 			                    android:layout_gravity="center"
  62. 			                    android:textColor="#fff"
  63. 			                    android:textSize="40sp" />
  64.  
  65. 			                <TextView
  66. 			                    android:id="@+id/weather_aqi_pm25_info"
  67. 			                    android:layout_width="wrap_content"
  68. 			                    android:layout_height="wrap_content"
  69. 			                    android:layout_gravity="center"
  70. 			                    android:textColor="#fff"
  71. 			                    android:text="@string/weather_aqi_pm25_info" />
  72. 			            </LinearLayout>
  73. 			    </LinearLayout>
  74.  
  75. 			</LinearLayout>

weather_suggestion

  1. <!--生活建议的布局，用于显示标题、舒适度、洗车指数和运动指数-->
  2. 			<LinearLayout
  3. 			    xmlns:android="http://schemas.android.com/apk/res/android"
  4. 			    android:layout_width="match_parent"
  5. 			    android:layout_height="wrap_content"
  6. 			    android:orientation="vertical"
  7. 			    android:layout_margin="15dp"
  8. 			    android:background="#8000">
  9.  
  10. 			    <TextView
  11. 			        android:id="@+id/weather_suggestion_title"
  12. 			        android:layout_width="wrap_content"
  13. 			        android:layout_height="wrap_content"
  14. 			        android:layout_marginLeft="15dp"
  15. 			        android:layout_marginStart="15dp"
  16. 			        android:layout_marginTop="15dp"
  17. 			        android:text="@string/weather_suggestion_title"
  18. 			        android:textColor="#fff"
  19. 			        android:textSize="20sp" />
  20.  
  21. 			    <TextView
  22. 			        android:id="@+id/weather_suggestion_comfort_text"
  23. 			        android:layout_width="wrap_content"
  24. 			        android:layout_height="wrap_content"
  25. 			        android:layout_margin="15dp"
  26. 			        android:textColor="#fff"/>
  27.  
  28. 			    <TextView
  29. 			        android:id="@+id/weather_suggestion_car_wash_text"
  30. 			        android:layout_width="wrap_content"
  31. 			        android:layout_height="wrap_content"
  32. 			        android:layout_margin="15dp"
  33. 			        android:textColor="#fff" />
  34.  
  35. 			    <TextView
  36. 			        android:id="@+id/weather_suggestion_sport_text"
  37. 			        android:layout_width="wrap_content"
  38. 			        android:layout_height="wrap_content"
  39. 			        android:layout_margin="15dp"
  40. 			        android:textColor="#fff" />
  41. 			</LinearLayout>

- 第十三步，在Utility里添加一个用于解析天气Json数据的方法

  1. /**
  2.  * 将返回的Json数据解析成Weather实体类
  3.  * */
  4. public static Weather handleWeatherResponse(String response) {
  5.     try {
  6.         JSONObject jsonObject = new JSONObject(response);
  7.         JSONArray jsonArray = jsonObject.getJSONArray("HeWeather");
  8.         String weatherContent = jsonArray.getJSONArray(0).toString();
  9.         return new Gson().fromJson(weatherContent,Weather.class);
  10.     } catch (Exception e) {
  11.         e.printStackTrace();
  12.     }
  13.     return null;
  14. }

- 第十四步，修改WeatherActivity的代码，在其中去请求天气数据，以及将数据展示在界面上

  1. public class WeatherActivity extends AppCompatActivity {
  2.  
  3.     private ScrollView weatherLayout;
  4.  
  5.     private TextView weatherTitleCity;
  6.  
  7.     private TextView weatherTitleUpdateTime;
  8.  
  9.     private TextView weatherNowDegreeText;
  10.  
  11.     private TextView weatherNowInfoText;
  12.  
  13.     private LinearLayout weatherForecastLayout;
  14.  
  15.     private TextView weatherAQIText;
  16.  
  17.     private TextView weatherPM25Text;
  18.  
  19.     private TextView weatherSuggestionComfortText;
  20.  
  21.     private TextView weatherSuggestionCarWashText;
  22.  
  23.     private TextView weatherSuggestionSportText;
  24.  
  25.     @Override
  26.     protected void onCreate(Bundle savedInstanceState) {
  27.         super.onCreate(savedInstanceState);
  28.         setContentView(R.layout.activity_weather);
  29.         //初始化各控件
  30.         weatherLayout = findViewById(R.id.weather_layout);
  31.         weatherTitleCity = findViewById(R.id.weather_title_city);
  32.         weatherTitleUpdateTime = findViewById(R.id.weather_title_update_time);
  33.         weatherNowDegreeText = findViewById(R.id.weather_now_degree_text);
  34.         weatherNowInfoText = findViewById(R.id.weather_now_info_text);
  35.         weatherForecastLayout = findViewById(R.id.weather_forecast_layout);
  36.         weatherAQIText = findViewById(R.id.weather_aqi_aqi_text);
  37.         weatherPM25Text = findViewById(R.id.weather_aqi_pm25_text);
  38.         weatherSuggestionComfortText = findViewById(R.id.weather_suggestion_comfort_text);
  39.         weatherSuggestionCarWashText = findViewById(R.id.weather_suggestion_car_wash_text);
  40.         weatherSuggestionSportText = findViewById(R.id.weather_suggestion_sport_text);
  41.  
  42.         SharedPreferences prefs  = PreferenceManager.getDefaultSharedPreferences(this);
  43.         String weatherString = prefs.getString("weather",null);
  44.         if (weatherString != null) {
  45.             //有缓存时直接解析天气数据
  46.             Weather weather = Utility.handleWeatherResponse(weatherString);
  47.             showWeatherInfo(weather);
  48.         } else {
  49.             //无缓存时去服务器查询天气
  50.             String weatherId = getIntent().getStringExtra("weather_id");
  51.             weatherLayout.setVisibility(View.INVISIBLE);
  52.             requestWeather(weatherId);
  53.         }
  54.  
  55.     }
  56.  
  57.     /**
  58. 		     * 根据天气id请求城市天气信息
  59. 		     * */
  60.     public void requestWeather(final String weatherId) {
  61.  
  62.         String weatherUrl = "http://guolin.tech/api/weather?cityid=" + weatherId + "&key=08f828b5a3ec4905a29156bf5f29136f";
  63.  
  64.         HttpUtil.sendOkHttpRequest(weatherUrl, new Callback() {
  65.             @Override
  66.             public void onFailure(@NotNull Call call, @NotNull IOException e) {
  67.                 runOnUiThread(new Runnable() {
  68.                     @Override
  69.                     public void run() {
  70.                         Toast.makeText(WeatherActivity.this,"获取天气信息失败",Toast.LENGTH_SHORT).show();
  71.                     }
  72.                 });
  73.             }
  74.  
  75.             @Override
  76.             public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
  77.                 final String responseText = response.body().string();
  78.                 final Weather weather = Utility.handleWeatherResponse(responseText);
  79.                 runOnUiThread(new Runnable() {
  80.                     @Override
  81.                     public void run() {
  82.                         if (weather != null && "ok".equals(weather.status)) {
  83.                             SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(WeatherActivity.this).edit();
  84.                             editor.putString("weather",responseText);
  85.                             editor.apply();
  86.                             showWeatherInfo(weather);
  87.                         } else {
  88.                             Toast.makeText(WeatherActivity.this,"获取天气信息失败",Toast.LENGTH_SHORT);
  89.                         }
  90.                     }
  91.                 });
  92.             }
  93.         });
  94.  
  95.  
  96.  
  97.     }
  98.  
  99.     /**
  100. 		     * 处理并展示Weather实体类中的数据
  101. 		     * */
  102.     private void showWeatherInfo(Weather weather) {
  103.         String cityName = weather.mBasic.cityName;
  104.         String updateTime = weather.mBasic.mUpdate.updateTime.split( " ")[1];
  105.         String degree = weather.mNow.temperature + "℃";
  106.         String weatherInfo = weather.mNow.mMore.info;
  107.         weatherTitleCity.setText(cityName);
  108.         weatherTitleUpdateTime.setText(updateTime);
  109.         weatherNowDegreeText.setText(degree);
  110.         weatherNowInfoText.setText(weatherInfo);
  111.         weatherForecastLayout.removeAllViews();
  112.         for (Forecast forecast : weather.mForecastList) {
  113.             View view = LayoutInflater.from(this).inflate(R.layout.item_forecast,weatherForecastLayout,false);
  114.             TextView dateText = view.findViewById(R.id.item_forecast_data_text);
  115.             TextView infoText = view.findViewById(R.id.item_forecast_info_text);
  116.             TextView maxText = view.findViewById(R.id.item_forecast_max_text);
  117.             TextView minText = view.findViewById(R.id.item_forecast_min_text);
  118.             dateText.setText(forecast.date);
  119.             infoText.setText(forecast.mMore.info);
  120.             maxText.setText(forecast.mTemperature.max);
  121.             minText.setText(forecast.mTemperature.min);
  122.             weatherForecastLayout.addView(view);
  123.         }
  124.         if (weather.mAQI != null) {
  125.             weatherAQIText.setText(weather.mAQI.mAQICity.aqi);
  126.             weatherPM25Text.setText(weather.mAQI.mAQICity.pm25);
  127.         }
  128.         String comfort = "舒适度：" + weather.mSuggestion.mComfort.info;
  129.         String carWash = "洗车指数：" + weather.mSuggestion.mCarWash.info;
  130.         String sport = "运动指数：" + weather.mSuggestion.mSport.info;
  131.         weatherSuggestionComfortText.setText(comfort);
  132.         weatherSuggestionCarWashText.setText(carWash);
  133.         weatherSuggestionSportText.setText(sport);
  134.         weatherLayout.setVisibility(View.VISIBLE);
  135.  
  136.     }
  137. }
  • 第十五步，修改ChooseAreaFragment的onActivityCreated()代码
  1. mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  2.     @Override
  3.     public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
  4.         if (mCurrentLevel == LEVEL_PROVINCE) {
  5.             mSelectedProvince = mProvinceList.get(position);
  6.             queryCities();
  7.         } else if (mCurrentLevel == LEVEL_CITY) {
  8.             mSelectedCity = mCityList.get(position);
  9.             queryCounties();
  10.         } else if (mCurrentLevel == LEVEL_COUNTY) {
  11.             String weatherId = mCountyList.get(position).getWeatherId();
  12.             Intent intent = new Intent(getActivity(),WeatherActivity.class);
  13.             intent.putExtra("weather_id",weatherId);
  14.             startActivity(intent);
  15.             getActivity().finish();
  16.         }
  17.     }
  18. });
  • 第十六步，修改MainActivity中的代码，判断是否已经请求过数据
  1. protected void onCreate(Bundle savedInstanceState) {
  2.     super.onCreate(savedInstanceState);
  3.     setContentView(R.layout.activity_main);
  4.     SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  5.     if (prefs.getString("weather",null) != null) {
  6.         Intent intent = new Intent(this,WeatherActivity.class);
  7.         startActivity(intent);
  8.         finish();
  9.     }
  10. }
  • 第十七步，获取必应的每日一图，修改activity_weather、weatherActivity
  1. <ImageView
  2. 	        android:id="@+id/bing_pic_img"
  3. 	        android:layout_width="match_parent"
  4. 	        android:layout_height="match_parent"
  5. 	        android:scaleType="centerCrop"
  6. 	        android:contentDescription="@string/bing_pic_img" />
  7. /**
  8. 	     * 加载必应每日一图
  9. 	     * */
  10. 	    private void loadBingPic() {
  11. 	        String requestBingPic = "http://guolin.tech/api/bing_pic";
  12. 	        HttpUtil.sendOkHttpRequest(requestBingPic, new Callback() {
  13. 	            @Override
  14. 	            public void onFailure(@NotNull Call call, @NotNull IOException e) {
  15. 	                e.printStackTrace();
  16. 	            }
  17.  
  18. 	            @Override
  19. 	            public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
  20. 	                final String bingPic = response.body().string();
  21. 	                SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(WeatherActivity.this).edit();
  22. 	                editor.putString("bing_pic",bingPic);
  23. 	                editor.apply();
  24. 	                runOnUiThread(new Runnable() {
  25. 	                    @Override
  26. 	                    public void run() {
  27. 	                        Glide.with(WeatherActivity.this).load(bingPic).into(bingPicImg);
  28. 	                    }
  29. 	                });
  30. 	            }
  31. 	        });
  32. 	    }
  • 第十八步，修改activity_weather，实现手动更新天气，切换城市
  1. <!--使用DrawerLayout实现菜单布局，其中第一个子控件用于作为主屏幕显示的内容，第二个字控件用于作为滑动菜单中显示的内容
  2.         layout_gravity指定了菜单所处的方向，且必须指定-->
  3. 	    <androidx.drawerlayout.widget.DrawerLayout
  4. 	        android:id="@+id/drawer_layout"
  5. 	        android:layout_width="match_parent"
  6. 	        android:layout_height="match_parent">
  7.  
  8. 	        <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
  9. 	            android:id="@+id/swipe_refresh"
  10. 	            android:layout_width="match_parent"
  11. 	            android:layout_height="match_parent">
  12. 	            <ScrollView
  13. 	                android:id="@+id/weather_layout"
  14. 	                android:layout_width="match_parent"
  15. 	                android:layout_height="match_parent"
  16. 	                android:scrollbars="none"
  17. 	                android:overScrollMode="never">
  18.  
  19. 	                <!--为状态看留出空间fitsSystemWindows="true"-->
  20. 	                <LinearLayout
  21. 	                    android:layout_width="match_parent"
  22. 	                    android:layout_height="wrap_content"
  23. 	                    android:orientation="vertical"
  24. 	                    android:fitsSystemWindows="true">
  25.  
  26. 	                    <include layout="@layout/weather_title"/>
  27.  
  28. 	                    <include layout="@layout/weather_now"/>
  29.  
  30. 	                    <include layout="@layout/weather_forecast"/>
  31.  
  32. 	                    <include layout="@layout/weather_aqi"/>
  33.  
  34. 	                    <include layout="@layout/weather_suggestion"/>
  35. 	                </LinearLayout>
  36. 	            </ScrollView>
  37. 	        </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
  38.  
  39. 	        <fragment
  40. 	            android:id="@+id/choose_area_fragment"
  41. 	            android:name="com.coolweather.android.activity.ChooseAreaFragment"
  42. 	            android:layout_width="match_parent"
  43. 	            android:layout_height="match_parent"
  44. 	            android:layout_gravity="start"/>
  45.  
  46. 	    </androidx.drawerlayout.widget.DrawerLayout>
  47. mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
  48.     @Override
  49.     public void onRefresh() {
  50.         requestWeather(weatherId);
  51.     }
  52. });
  53. String bingPic = prefs.getString("bing_pic",null);
  54. if (bingPic != null) {
  55.     Glide.with(this).load(bingPic).into(bingPicImg);
  56. } else {
  57.     loadBingPic();
  58. }
  • 第十九步，新建AutoUpdateService，实现自动更新天气与城市
  1. public class AutoUpdateService extends Service {
  2.     public AutoUpdateService() {
  3.     }
  4.  
  5.     @Override
  6.     public IBinder onBind(Intent intent) {
  7.         return null;
  8.     }
  9.  
  10.     @Override
  11.     public int onStartCommand(Intent intent, int flags, int startId) {
  12.         updateWeather();
  13.         updateBingPic();
  14.         AlarmManager manager = (AlarmManager) getSystemService(ALARM_SERVICE);
  15.         // 八小时更新一次
  16.         int anHour = 8 * 60 * 60 * 1000;
  17.         long triggerAtTime = SystemClock.elapsedRealtime() + anHour;
  18.         Intent intentOne = new Intent(this,AutoUpdateService.class);
  19.         PendingIntent pendingIntent = PendingIntent.getService(this,0,intentOne,0);
  20.         manager.cancel(pendingIntent);
  21.         manager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,triggerAtTime,pendingIntent);
  22.         return super.onStartCommand(intent, flags, startId);
  23.     }
  24.  
  25.     /**
  26.      * 更新天气信息
  27.      * */
  28.     private void updateWeather() {
  29.         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  30.         String weatherString = prefs.getString("weather",null);
  31.         if (weatherString != null) {
  32.             // 有缓存时直接解析天气数据
  33.             Weather weather = Utility.handleWeatherResponse(weatherString);
  34.             String weatherId = weather.mBasic.weatherId;
  35.  
  36.             String weatherUrl = "http://guolin.tech/api/weather?cityid=" + weatherId + "&key=08f828b5a3ec4905a29156bf5f29136f";
  37.             HttpUtil.sendOkHttpRequest(weatherUrl, new Callback() {
  38.                 @Override
  39.                 public void onFailure(@NotNull Call call, @NotNull IOException e) {
  40.                     e.printStackTrace();
  41.                 }
  42.  
  43.                 @Override
  44.                 public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
  45.                     String responseText = response.body().string();
  46.                     Weather weather = Utility.handleWeatherResponse(responseText);
  47.                     if (weather != null && "ok".equals(weather.status)) {
  48.                         SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(AutoUpdateService.this).edit();
  49.                         editor.putString("weather",responseText);
  50.                         editor.apply();
  51.                     }
  52.                 }
  53.             });
  54.         }
  55.     }
  56.  
  57.     /**
  58.      * 更新必应每日一图
  59.      * */
  60.     private void updateBingPic() {
  61.         String requestBingPic = "http://guolin.tech/api/bing_pic";
  62.         HttpUtil.sendOkHttpRequest(requestBingPic, new Callback() {
  63.             @Override
  64.             public void onFailure(@NotNull Call call, @NotNull IOException e) {
  65.                 e.printStackTrace();
  66.             }
  67.  
  68.             @Override
  69.             public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
  70.                 String bingPic = response.body().string();
  71.                 SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(AutoUpdateService.this).edit();
  72.                 editor.putString("bing_pic",bingPic);
  73.                 editor.apply();
  74.             }
  75.         });
  76.     }
  77. }
  • 下载地址

https://github.com/qricis/DoSomeAndroidTest/tree/main/CoolWeather

声明：本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：https://www.wpsshop.cn/w/不正经/article/detail/590044
推荐阅读
相关标签

Copyright © 2003-2013 www.wpsshop.cn 版权所有，并保留所有权利。

  

闽ICP备14008679号