Android天气预报开发。
16lz
2021-01-26
刚入坑安卓不久，写了个小东西试试手。
工程文件我也找不见了，抱歉各位
在此感谢https://blog.csdn.net/champion0324/article/details/71304567的分享。大的框架就是抄的。(⊙o⊙)…
API这里我并没有用和风天气的，貌似不免费开放了。感谢室友找的api。。。
http://api.map.baidu.com/telematics/v3/weather?location=长沙&output=json&ak=vZlRYC39tTuniYzNcX2zrQmZzblZcXwp
返回的是json数据，解析一下就可以得到数据。
volley框架也不好找，这里直接贴上我zhoa
链接: https://pan.baidu.com/s/1cIUpMY7RJIneUpXZi-4xPg 提取码: d1va
例如
{ "error": 0, "status": "success", "date": "2018-10-08", "results": [ { "currentCity": "长沙", "pm25": "132", "index": [ { "des": "建议着长袖T恤、衬衫加单裤等服装。年老体弱者宜着针织长袖衬衫、马甲和长裤。", "tipt": "穿衣指数", "title": "穿衣", "zs": "舒适" }, { "des": "不宜洗车，未来24小时内有雨，如果在此期间洗车，雨水和路上的泥水可能会再次弄脏您的爱车。", "tipt": "洗车指数", "title": "洗车", "zs": "不宜" }, { "des": "天气转凉，空气湿度较大，较易发生感冒，体质较弱的朋友请注意适当防护。", "tipt": "感冒指数", "title": "感冒", "zs": "较易发" }, { "des": "天气较好，赶快投身大自然参与户外运动，尽情感受运动的快乐吧。", "tipt": "运动指数", "title": "运动", "zs": "适宜" }, { "des": "紫外线强度较弱，建议出门前涂擦SPF在12-15之间、PA+的防晒护肤品。", "tipt": "紫外线强度指数", "title": "紫外线强度", "zs": "弱" } ], "weather_data": [ { "date": "周一 10月08日 (实时：21℃)", "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/duoyun.png", "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/xiaoyu.png", "weather": "多云转小雨", "wind": "北风微风", "temperature": "26 ~ 18℃" }, { "date": "周二", "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/xiaoyu.png", "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/xiaoyu.png", "weather": "小雨", "wind": "北风微风", "temperature": "20 ~ 17℃" }, { "date": "周三", "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/yin.png", "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/yin.png", "weather": "阴", "wind": "北风微风", "temperature": "24 ~ 15℃" }, { "date": "周四", "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/duoyun.png", "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/duoyun.png", "weather": "多云", "wind": "北风微风", "temperature": "23 ~ 13℃" } ] } ]}在此，推荐一个解析的软件，postman，可以让解析更加清晰。
先看看之前的界面。low的一比。。。于是后面优化了一下。
框架大体是一样的。记得在AndroidManifest中添加权限：在
mainactivity代码见下，主要就是调用解析，并将部分数据用intent传入到第二界面。其中解析之后使用的list，可能有点费劲。
package com.example.a_new_start;import android.app.Activity;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.Editable;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;import com.android.volley.Request;import com.android.volley.RequestQueue;import com.android.volley.Response;import com.android.volley.VolleyError;import com.android.volley.toolbox.JsonObjectRequest;import com.android.volley.toolbox.StringRequest;import com.android.volley.toolbox.Volley;import com.google.gson.Gson;import org.json.JSONObject;import java.util.List;public class MainActivity extends Activity implements View.OnClickListener { int flag_right = 0; RequestQueue queue = null; EditText et_city; TextView tv_city, tv_nowtemp, tv_pm25, tv_pm_degree; TextView tv_11, tv_12, tv_13, tv_21, tv_22, tv_23, tv_31, tv_32, tv_33, tv_41, tv_42, tv_43; Button jump; Editable city; String des_1, des_2, des_3, des_4, des_5, tipt_zs_1, tipt_zs_2, tipt_zs_3, tipt_zs_4, tipt_zs_5; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); queue = Volley.newRequestQueue(this); et_city = (EditText) findViewById(R.id.et_city); tv_city = (TextView) findViewById(R.id.id_tv_city); tv_pm25 = (TextView) findViewById(R.id.tv_pm25); tv_pm_degree = (TextView) findViewById(R.id.tv_pm_degree); tv_nowtemp = (TextView) findViewById(R.id.id_tv_nowtemp); jump = (Button) findViewById(R.id.btn_jump); jump.setOnClickListener(this); tv_11 = (TextView) findViewById(R.id.tv_11); tv_12 = (TextView) findViewById(R.id.tv_12); tv_13 = (TextView) findViewById(R.id.tv_13); tv_21 = (TextView) findViewById(R.id.tv_21); tv_22 = (TextView) findViewById(R.id.tv_22); tv_23 = (TextView) findViewById(R.id.tv_23); tv_31 = (TextView) findViewById(R.id.tv_31); tv_32 = (TextView) findViewById(R.id.tv_32); tv_33 = (TextView) findViewById(R.id.tv_33); tv_41 = (TextView) findViewById(R.id.tv_41); tv_42 = (TextView) findViewById(R.id.tv_42); tv_43 = (TextView) findViewById(R.id.tv_43); } public void weatherClick(View view) { city = et_city.getText(); flag_right = 1; String url = "http://api.map.baidu.com/telematics/v3/weather?location=" + city + "&output=json&ak=vZlRYC39tTuniYzNcX2zrQmZzblZcXwp"; JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener() { @Override public void onResponse(JSONObject jsonObject) { System.out.println(jsonObject); Gson gson = new Gson(); WeatherBean jiepanxia = gson.fromJson(jsonObject.toString(), WeatherBean.class); if (jiepanxia.getError() == 0) { // List jiepanxia; String locate = jiepanxia.getResults().get(0).getCurrentCity(); //城市 String date = jiepanxia.getResults().get(0).getWeather_data().get(0).getDate(); //日期 String s_pm = jiepanxia.getResults().get(0).getPm25(); String empty = ""; //一个空的字符串，坑爹api县级市没有pm2.5指数 StringBuffer pm_degree = new StringBuffer(); int flag = 0; if (s_pm.equals(empty) == false) { flag = 1; int pmint = Integer.parseInt(s_pm); if (pmint < 50) //0-50 pm_degree.append("空气质量：优"); else if (pmint < 100) //50-100 pm_degree.append("空气质量：良"); else if (pmint < 150) pm_degree.append("空气质量：轻度污染"); else if (pmint < 200) pm_degree.append("空气质量：中度污染"); else if (pmint < 300) pm_degree.append("空气质量：重度污染"); else pm_degree.append("空气质量：严重污染"); } String tv11 = jiepanxia.getResults().get(0).getWeather_data().get(0).getDate(); //相当于一个行列矩阵。具体看实际图片 String tv12 = jiepanxia.getResults().get(0).getWeather_data().get(0).getWeather(); String tv13 = jiepanxia.getResults().get(0).getWeather_data().get(0).getTemperature(); String tv21 = jiepanxia.getResults().get(0).getWeather_data().get(1).getDate(); String tv22 = jiepanxia.getResults().get(0).getWeather_data().get(1).getWeather(); String tv23 = jiepanxia.getResults().get(0).getWeather_data().get(1).getTemperature(); String tv31 = jiepanxia.getResults().get(0).getWeather_data().get(2).getDate(); String tv32 = jiepanxia.getResults().get(0).getWeather_data().get(2).getWeather(); String tv33 = jiepanxia.getResults().get(0).getWeather_data().get(2).getTemperature(); String tv41 = jiepanxia.getResults().get(0).getWeather_data().get(3).getDate(); String tv42 = jiepanxia.getResults().get(0).getWeather_data().get(3).getWeather(); String tv43 = jiepanxia.getResults().get(0).getWeather_data().get(3).getTemperature(); tipt_zs_1 = jiepanxia.getResults().get(0).getIndex().get(0).getTipt() + ":" + jiepanxia.getResults().get(0).getIndex().get(0).getZs(); tipt_zs_2 = jiepanxia.getResults().get(0).getIndex().get(1).getTipt() + ":" + jiepanxia.getResults().get(0).getIndex().get(1).getZs(); tipt_zs_3 = jiepanxia.getResults().get(0).getIndex().get(2).getTipt() + ":" + jiepanxia.getResults().get(0).getIndex().get(2).getZs(); tipt_zs_4 = jiepanxia.getResults().get(0).getIndex().get(3).getTipt() + ":" + jiepanxia.getResults().get(0).getIndex().get(3).getZs(); tipt_zs_5 = jiepanxia.getResults().get(0).getIndex().get(4).getTipt() + ":" + jiepanxia.getResults().get(0).getIndex().get(4).getZs(); des_1 = jiepanxia.getResults().get(0).getIndex().get(0).getDes(); des_2 = jiepanxia.getResults().get(0).getIndex().get(1).getDes(); des_3 = jiepanxia.getResults().get(0).getIndex().get(2).getDes(); des_4 = jiepanxia.getResults().get(0).getIndex().get(3).getDes(); des_5 = jiepanxia.getResults().get(0).getIndex().get(4).getDes(); char[] data_1 = tv11.toCharArray(); StringBuffer the = new StringBuffer(); the.append(data_1[0]); the.append(data_1[1]); the.append("(本日)"); char[] datearr = date.toCharArray(); StringBuffer now = new StringBuffer(); int k = 0; for (int i = 0; i < date.length(); i++) { if (datearr[i] == '：') { k = i; break; } } for (int i = k + 1; datearr[i] != ')'; i++) { now.append(datearr[i]); } tv_11.setText(the.toString()); tv_12.setText(tv12); tv_13.setText(tv13); tv_21.setText(tv21); tv_22.setText(tv22); tv_23.setText(tv23); tv_31.setText(tv31); tv_32.setText(tv32); tv_33.setText(tv33); tv_41.setText(tv41); tv_42.setText(tv42); tv_43.setText(tv43); tv_city.setText(locate); tv_nowtemp.setText(now.toString()); if (flag == 1) tv_pm25.setText("pm2.5值:" + s_pm); tv_pm_degree.setText(pm_degree.toString()); } else { Toast.makeText(getApplicationContext(), "城市名称错误，请重试", Toast.LENGTH_SHORT).show(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError volleyError) { System.out.println(volleyError); } }); queue.add(request); } @Override public void onClick(View v) { if (v.getId() == R.id.btn_jump) { if (flag_right == 1) { //非空 Intent intent = new Intent(this, second.class); intent.putExtra("t1", tipt_zs_1); intent.putExtra("t2", tipt_zs_2); intent.putExtra("t3", tipt_zs_3); intent.putExtra("t4", tipt_zs_4); intent.putExtra("t5", tipt_zs_5); intent.putExtra("d1", des_1); intent.putExtra("d2", des_2); intent.putExtra("d3", des_3); intent.putExtra("d4", des_4); intent.putExtra("d5", des_5); startActivity(intent); } else { Toast.makeText(getApplicationContext(), "请先查询城市天气", Toast.LENGTH_SHORT).show(); } } }} 主界面代码。
<?xml version="1.0" encoding="utf-8"?> 附上实际图。
视图第二界面java代码
package com.example.a_new_start;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView;public class second extends Activity { TextView t_1,t_2,t_3,t_4,t_5,d_1,d_2,d_3,d_4,d_5; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.line_second); Intent intent =getIntent(); String t1=intent.getStringExtra("t1"); String t2=intent.getStringExtra("t2"); String t3=intent.getStringExtra("t3"); String t4=intent.getStringExtra("t4"); String t5=intent.getStringExtra("t5"); String d1=intent.getStringExtra("d1"); String d2=intent.getStringExtra("d2"); String d3=intent.getStringExtra("d3"); String d4=intent.getStringExtra("d4"); String d5=intent.getStringExtra("d5"); t_1=(TextView)findViewById(R.id.tv_tipt_zs_1); t_2=(TextView)findViewById(R.id.tv_tipt_zs_2); t_3=(TextView)findViewById(R.id.tv_tipt_zs_3); t_4=(TextView)findViewById(R.id.tv_tipt_zs_4); t_5=(TextView)findViewById(R.id.tv_tipt_zs_5); d_1=(TextView)findViewById(R.id.tv_des_1); d_2=(TextView)findViewById(R.id.tv_des_2); d_3=(TextView)findViewById(R.id.tv_des_3); d_4=(TextView)findViewById(R.id.tv_des_4); d_5=(TextView)findViewById(R.id.tv_des_5); t_1.setText(t1); t_2.setText(t2); t_3.setText(t3); t_4.setText(t4); t_5.setText(t5); d_1.setText(d1); d_2.setText(d2); d_3.setText(d3); d_4.setText(d4); d_5.setText(d5); }}最后是xml代码
<?xml version="1.0" encoding="utf-8"?> 还有自动生成的json代码
package com.example.a_new_start;import java.util.List;public class WeatherBean{ /** * error : 0 * status : success * date : 2018-10-02 * results : [{"currentCity":"changsha","pm25":"55","index":[{"des":"天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。","tipt":"穿衣指数","title":"穿衣","zs":"热"},{"des":"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。","tipt":"洗车指数","title":"洗车","zs":"较适宜"},{"des":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。","tipt":"感冒指数","title":"感冒","zs":"少发"},{"des":"天气较好，户外运动请注意防晒，推荐您在室内进行低强度运动。","tipt":"运动指数","title":"运动","zs":"较适宜"},{"des":"紫外线辐射强，建议涂擦SPF20左右、PA++的防晒护肤品。避免在10点至14点暴露于日光下。","tipt":"紫外线强度指数","title":"紫外线强度","zs":"强"}],"weather_data":[{"date":"周二 10月02日 (实时：24℃)","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/duoyun.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"多云转晴","wind":"北风3-4级","temperature":"28 ~ 18℃"},{"date":"周三","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"无持续风向微风","temperature":"29 ~ 18℃"},{"date":"周四","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"无持续风向微风","temperature":"29 ~ 18℃"},{"date":"周五","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"北风微风","temperature":"28 ~ 18℃"}]}] */ private int error; private String status; private String date; private List results; public int getError() { return error; } public void setError(int error) { this.error = error; } public String getStatus() { return status; } public void setStatus(String status) { this.status = status; } public String getDate() { return date; } public void setDate(String date) { this.date = date; } public List getResults() { return results; } public void setResults(List results) { this.results = results; } public static class ResultsBean { /** * currentCity : changsha * pm25 : 55 * index : [{"des":"天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。","tipt":"穿衣指数","title":"穿衣","zs":"热"},{"des":"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。","tipt":"洗车指数","title":"洗车","zs":"较适宜"},{"des":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。","tipt":"感冒指数","title":"感冒","zs":"少发"},{"des":"天气较好，户外运动请注意防晒，推荐您在室内进行低强度运动。","tipt":"运动指数","title":"运动","zs":"较适宜"},{"des":"紫外线辐射强，建议涂擦SPF20左右、PA++的防晒护肤品。避免在10点至14点暴露于日光下。","tipt":"紫外线强度指数","title":"紫外线强度","zs":"强"}] * weather_data : [{"date":"周二 10月02日 (实时：24℃)","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/duoyun.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"多云转晴","wind":"北风3-4级","temperature":"28 ~ 18℃"},{"date":"周三","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"无持续风向微风","temperature":"29 ~ 18℃"},{"date":"周四","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"无持续风向微风","temperature":"29 ~ 18℃"},{"date":"周五","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"北风微风","temperature":"28 ~ 18℃"}] */ private String currentCity; private String pm25; private List index; private List weather_data; public String getCurrentCity() { return currentCity; } public void setCurrentCity(String currentCity) { this.currentCity = currentCity; } public String getPm25() { return pm25; } public void setPm25(String pm25) { this.pm25 = pm25; } public List getIndex() { return index; } public void setIndex(List index) { this.index = index; } public List getWeather_data() { return weather_data; } public void setWeather_data(List weather_data) { this.weather_data = weather_data; } public static class IndexBean { /** * des : 天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。 * tipt : 穿衣指数 * title : 穿衣 * zs : 热 */ private String des; private String tipt; private String title; private String zs; public String getDes() { return des; } public void setDes(String des) { this.des = des; } public String getTipt() { return tipt; } public void setTipt(String tipt) { this.tipt = tipt; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getZs() { return zs; } public void setZs(String zs) { this.zs = zs; } } public static class WeatherDataBean { /** * date : 周二 10月02日 (实时：24℃) * dayPictureUrl : http://api.map.baidu.com/images/weather/day/duoyun.png * nightPictureUrl : http://api.map.baidu.com/images/weather/night/qing.png * weather : 多云转晴 * wind : 北风3-4级 * temperature : 28 ~ 18℃ */ private String date; private String dayPictureUrl; private String nightPictureUrl; private String weather; private String wind; private String temperature; public String getDate() { return date; } public void setDate(String date) { this.date = date; } public String getDayPictureUrl() { return dayPictureUrl; } public void setDayPictureUrl(String dayPictureUrl) { this.dayPictureUrl = dayPictureUrl; } public String getNightPictureUrl() { return nightPictureUrl; } public void setNightPictureUrl(String nightPictureUrl) { this.nightPictureUrl = nightPictureUrl; } public String getWeather() { return weather; } public void setWeather(String weather) { this.weather = weather; } public String getWind() { return wind; } public void setWind(String wind) { this.wind = wind; } public String getTemperature() { return temperature; } public void setTemperature(String temperature) { this.temperature = temperature; } } }} 有任何问题，欢迎留言~
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