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天气预报_android studio 天气预报app csdn定位摇一摇和风

作者：我家小花儿 | 2024-05-18 21:53:13

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android studio 天气预报app csdn定位摇一摇和风

一、运行效果图





二、核心代码

  1. package com.example.weather;
  2.  
  3. import com.example.weather.R;
  4.  
  5. import android.os.Bundle;
  6. import android.app.Activity;
  7. import android.view.Menu;
  8.  
  9. public class MainActivity extends Activity {
  10.  
  11. 	@Override
  12. 	protected void onCreate(Bundle savedInstanceState) {
  13. 		super.onCreate(savedInstanceState);
  14. 		setContentView(R.layout.activity_main);
  15. 	}
  16.  
  17. 	@Override
  18. 	public boolean onCreateOptionsMenu(Menu menu) {
  19. 		// Inflate the menu; this adds items to the action bar if it is present.
  20. 		getMenuInflater().inflate(R.menu.main, menu);
  21. 		return true;
  22. 	}
  23.  
  24. }

  1. package com.example.weather;
  2.  
  3.  
  4.  
  5.  
  6. import java.io.UnsupportedEncodingException;
  7. import java.net.URLEncoder;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10.  
  11. import com.example.weather.R;
  12. import com.example.weather.adapter.WeatherAdapter;
  13. import com.example.weather.moder.Weather;
  14. import com.example.weather.util.HttpCallbackListener;
  15. import com.example.weather.util.HttpUtil;
  16. import com.google.gson.JsonArray;
  17. import com.google.gson.JsonObject;
  18. import com.google.gson.JsonParser;
  19.  
  20. import android.app.Activity;
  21. import android.os.Bundle;
  22. import android.os.Handler;
  23. import android.os.Message;
  24. import android.view.View;
  25. import android.view.View.OnClickListener;
  26. import android.view.animation.LayoutAnimationController;
  27. import android.view.animation.ScaleAnimation;
  28. import android.widget.EditText;
  29. import android.widget.ImageButton;
  30. import android.widget.ListView;
  31. import android.widget.Toast;
  32.  
  33. public class WeatherActivity extends Activity {
  34. 	private EditText ecCity;
  35. 	private ImageButton btnQuery;
  36. 	private ListView lvFutureWeather;
  37. 	public static final int SHOW_RESPONSE = 1;
  38. 	private List<Weather> data;
  39. 	private Handler handler = new Handler() {
  40. 		public void handleMessage(Message msg) {
  41. 			switch (msg.what) {
  42. 			case SHOW_RESPONSE:
  43. 				String response = (String) msg.obj;
  44. 				if (response != null) {
  45. 					parseWithJSON(response);
  46. 					WeatherAdapter weatherAdapter = new WeatherAdapter(
  47. 							WeatherActivity.this,
  48. 							R.layout.activity_weather_listitem, data);
  49. 					lvFutureWeather.setAdapter(weatherAdapter);
  50. 					ScaleAnimation scaleAnimation = new ScaleAnimation(0, 1, 0,
  51. 							1);
  52. 					scaleAnimation.setDuration(1000);
  53. 					LayoutAnimationController animationController = new LayoutAnimationController(
  54. 							scaleAnimation, 0.6f);
  55. 					lvFutureWeather.setLayoutAnimation(animationController);
  56. 				}
  57. 				break;
  58. 			default:
  59. 				break;
  60. 			}
  61. 		}
  62.  
  63. 		private void parseWithJSON(String response) {
  64. 			// TODO Auto-generated method stub
  65. 			data = new ArrayList<Weather>();
  66. 			JsonParser parser = new JsonParser();// json解析器
  67. 			JsonObject obj = (JsonObject) parser.parse(response);
  68. 			// 获取返回状态吗
  69. 			String resultcode = obj.get("resultcode").getAsString();
  70. 			// 状态码如果是200说明数据返回成功
  71. 			if (resultcode != null && resultcode.equals("200")) {
  72. 				JsonObject resultObj = obj.get("result").getAsJsonObject();
  73. 				JsonArray futureWeatherArray = resultObj.get("future")
  74. 						.getAsJsonArray();
  75. 				for (int i = 0; i < futureWeatherArray.size(); i++) {
  76. 					Weather weather = new Weather();
  77. 					JsonObject weatherObject = futureWeatherArray.get(i)
  78. 							.getAsJsonObject();
  79. 					weather.setDayOfWeek(weatherObject.get("week")
  80. 							.getAsString());
  81. 					weather.setDate(weatherObject.get("date").getAsString());
  82. 					weather.setTemperature(weatherObject.get("temperature")
  83. 							.getAsString());
  84. 					weather.setWeather(weatherObject.get("weather")
  85. 							.getAsString());
  86. 					data.add(weather);
  87. 				}
  88. 			}
  89. 		}
  90. 	};
  91.  
  92. 	@Override
  93. 	protected void onCreate(Bundle savedInstanceState) {
  94. 		super.onCreate(savedInstanceState);
  95. 		setContentView(R.layout.activity_weather);
  96. 		initViews();
  97. 		setListeners();
  98. 	}
  99.  
  100. 	public void initViews() {
  101. 		ecCity = (EditText) findViewById(R.id.etCity);
  102. 		btnQuery = (ImageButton) findViewById(R.id.btnQuery);
  103. 		lvFutureWeather = (ListView) findViewById(R.id.lvFutureWeather);
  104. 		data = new ArrayList<Weather>();
  105. 	}
  106.  
  107. 	private void setListeners() {
  108. 		btnQuery.setOnClickListener(new OnClickListener() {
  109. 			public void onClick(View v) {
  110. 				// TODO Auto-generated method stub
  111. 				String cityName = ecCity.getText().toString();
  112. 				try {
  113. 					cityName = URLEncoder.encode(cityName, "utf-8");
  114. 				} catch (UnsupportedEncodingException e1) {
  115. 					e1.printStackTrace();
  116. 				}
  117. 				System.out.println("lvFutureWeather=" + lvFutureWeather);
  118. 				Toast.makeText(WeatherActivity.this, "success",
  119. 						Toast.LENGTH_LONG).show();
  120. 				String weatherUrl = "http://v.juhe.cn/weather/index?format=2&cityname="
  121. 						+ cityName + "&key=b6683508adf0adc07aa24e5cc0811487";
  122. 				Toast.makeText(WeatherActivity.this, "success" + weatherUrl,
  123. 						Toast.LENGTH_LONG).show();
  124. 				HttpUtil.sendHttpRequest(weatherUrl,
  125. 						new HttpCallbackListener() {
  126. 							public void onFinish(String response) {
  127. 								// TODO Auto-generated method stub
  128. 								Message message = new Message();
  129. 								message.what = SHOW_RESPONSE;
  130. 								// 将服务器返回的结果存放到Message中
  131. 								message.obj = response.toString();
  132. 								handler.sendMessage(message);
  133. 							}
  134.  
  135. 							public void onError(Exception e) {
  136. 								// TODO Auto-generated method stub
  137. 								System.out.println("访问失败");
  138. 							}
  139. 						});
  140. 			}
  141. 		});
  142. 	}
  143. }

  1. package com.example.weather.adapter;
  2.  
  3. import java.util.List;
  4. import android.content.Context;
  5. import android.view.LayoutInflater;
  6. import android.view.View;
  7. import android.view.ViewGroup;
  8. import android.widget.ArrayAdapter;
  9. import android.widget.TextView;
  10.  
  11. import com.example.weather.R;
  12. import com.example.weather.moder.Weather;
  13.  
  14. public class WeatherAdapter extends ArrayAdapter<Weather> {
  15. 	private int resourceId;
  16.  
  17. 	public WeatherAdapter(Context context, int textViewResourceId,
  18. 			List<Weather> objects) {
  19. 		super(context, textViewResourceId, objects);
  20. 		resourceId = textViewResourceId;
  21. 	}
  22.  
  23. 	@Override
  24. 	public View getView(int position, View convertView, ViewGroup viewgroup) {
  25. 		Weather weather = getItem(position);
  26. 		ViewHolder viewHolder = null;
  27. 		if (convertView == null) {
  28. 			viewHolder = new ViewHolder();
  29. 			convertView = LayoutInflater.from(getContext()).inflate(resourceId,
  30. 					null);
  31. 			viewHolder.tvDayOfWeek = (TextView) convertView
  32. 					.findViewById(R.id.tvDayofWeek);
  33. 			viewHolder.tvDate = (TextView) convertView
  34. 					.findViewById(R.id.tvDate);
  35. 			viewHolder.tvTemperature = (TextView) convertView
  36. 					.findViewById(R.id.tvTemperature);
  37. 			viewHolder.tvWeather = (TextView) convertView
  38. 					.findViewById(R.id.tvWeather);
  39. 			convertView.setTag(viewHolder);
  40. 		} else {
  41. 			viewHolder = (ViewHolder) convertView.getTag();
  42. 		}
  43. 		viewHolder.tvDayOfWeek.setText(weather.getDayOfWeek());
  44. 		viewHolder.tvDate.setText(weather.getDate());
  45. 		viewHolder.tvTemperature.setText(weather.getTemperature());
  46. 		viewHolder.tvWeather.setText(weather.getWeather());
  47. 		return convertView;
  48. 	}
  49.  
  50. 	private class ViewHolder {
  51. 		TextView tvDayOfWeek;
  52. 		TextView tvDate;
  53. 		TextView tvTemperature;
  54. 		TextView tvWeather;
  55. 	}
  56. }

  1. package com.example.weather.moder;
  2.  
  3. public class Weather {
  4. 	private String dayOfWeek;// 星期几
  5. 	private String date;// 日期
  6. 	private String temperature;// 温度
  7. 	private String weather;// 天气
  8.  
  9. 	public Weather() {
  10. 	}
  11.  
  12. 	public Weather(String dayOfWeek, String date, String temperature,
  13. 			String weather) {
  14. 		super();
  15. 		this.dayOfWeek = dayOfWeek;
  16. 		this.date = date;
  17. 		this.temperature = temperature;
  18. 		this.weather = weather;
  19. 	}
  20.  
  21. 	public String getDayOfWeek() {
  22. 		return dayOfWeek;
  23. 	}
  24.  
  25. 	public void setDayOfWeek(String dayOfWeek) {
  26. 		this.dayOfWeek = dayOfWeek;
  27. 	}
  28.  
  29. 	public String getDate() {
  30. 		return date;
  31. 	}
  32.  
  33. 	public void setDate(String date) {
  34. 		this.date = date;
  35. 	}
  36.  
  37. 	public String getTemperature() {
  38. 		return temperature;
  39. 	}
  40.  
  41. 	public void setTemperature(String temperature) {
  42. 		this.temperature = temperature;
  43. 	}
  44.  
  45. 	public String getWeather() {
  46. 		return weather;
  47. 	}
  48.  
  49. 	public void setWeather(String weather) {
  50. 		this.weather = weather;
  51. 	}
  52.  
  53. 	@Override
  54. 	public String toString() {
  55. 		return "Weather [dayOfWeek=" + dayOfWeek + ", date=" + date
  56. 				+ ", temperature=" + temperature + ", weather=" + weather + "]";
  57. 	}
  58.  
  59. }

  1. package com.example.weather.test;
  2.  
  3. import java.io.UnsupportedEncodingException;
  4. import java.net.URLEncoder;
  5.  
  6. import com.example.weather.util.HttpCallbackListener;
  7. import com.example.weather.util.HttpUtil;
  8.  
  9. import android.test.AndroidTestCase;
  10.  
  11. public class WeatherGetTest extends AndroidTestCase {
  12. 	public void testGetData() {
  13. 		String cityName = null;
  14. 		try {
  15. 			cityName = URLEncoder.encode(cityName, "utf-8");
  16. 			String weatherUrl = "http://v.juhe.cn/weather/index?format=2&cityname="
  17. 					+ cityName + "&key=b6683508adf0adc07aa24e5cc0811487";
  18.  
  19. 			HttpUtil.sendHttpRequest(weatherUrl, new HttpCallbackListener() {
  20.  
  21. 				public void onFinish(String response) {
  22. 					// TODO Auto-generated method stub
  23. 					System.out.println(response);
  24. 				}
  25.  
  26. 				public void onError(Exception e) {
  27. 					// TODO Auto-generated method stub
  28.  
  29. 				}
  30. 			});
  31. 		} catch (Exception e) {
  32. 			// TODO: handle exception
  33. 		}
  34.  
  35. 	}
  36. }

  1. package com.example.weather.util;
  2.  
  3. public interface HttpCallbackListener {
  4. 	void onFinish(String response);
  5.  
  6. 	void onError(Exception e);
  7. }

  1. package com.example.weather.util;
  2.  
  3. import java.io.BufferedReader;
  4. import java.io.InputStream;
  5. import java.io.InputStreamReader;
  6. import java.net.HttpURLConnection;
  7. import java.net.URL;
  8. import android.util.Log;
  9.  
  10. public class HttpUtil {
  11. 	public static void sendHttpRequest(final String address,
  12. 			final HttpCallbackListener listener) {
  13. 		new Thread(new Runnable() {
  14. 			public void run() {
  15. 				HttpURLConnection connection = null;
  16. 				try {
  17. 					URL url = new URL(address);
  18. 					connection = (HttpURLConnection) url.openConnection();
  19. 					connection.setRequestMethod("GET");
  20. 					connection.setConnectTimeout(8000);
  21. 					connection.setReadTimeout(8000);
  22. 					connection.setDoInput(true);
  23. 					connection.setDoOutput(true);
  24. 					InputStream in = connection.getInputStream();
  25. 					BufferedReader reader = new BufferedReader(
  26. 							new InputStreamReader(in));
  27. 					StringBuilder response = new StringBuilder();
  28. 					String line;
  29. 					while ((line = reader.readLine()) != null) {
  30. 						response.append(line);
  31. 					}
  32. 					if (listener != null) {
  33. 						// 回调 onFinish()方法
  34. 						listener.onFinish(response.toString());
  35. 					}
  36. 				} catch (Exception e) {
  37. 					if (listener != null) {
  38. 						// 回调 onError()方法
  39. 						listener.onError(e);
  40. 					}
  41. 				} finally {
  42. 					if (connection != null) {
  43. 						connection.disconnect();
  44. 					}
  45. 				}
  46. 			}
  47. 		}).start();
  48. 	}
  49. }

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="wrap_content"
  5.     android:layout_margin="10dp"
  6.     android:background="@drawable/list_item_shape"
  7.     android:padding="10dp" >
  8.  
  9.     <TextView
  10.         android:id="@+id/tvDayofWeek"
  11.         android:layout_width="wrap_content"
  12.         android:layout_height="wrap_content"
  13.         android:layout_alignParentLeft="true"
  14.         android:layout_alignParentTop="true"
  15.         android:layout_marginLeft="15dp"
  16.         android:text="星期日" />
  17.  
  18.     <TextView
  19.         android:id="@+id/tvDate"
  20.         android:layout_width="wrap_content"
  21.         android:layout_height="wrap_content"
  22.         android:layout_alignBaseline="@+id/tvDayofWeek"
  23.         android:layout_alignBottom="@+id/tvDayofWeek"
  24.         android:layout_alignParentRight="true"
  25.         android:text="20160207" />
  26.  
  27.     <TextView
  28.         android:id="@+id/tvTemperature"
  29.         android:layout_width="wrap_content"
  30.         android:layout_height="wrap_content"
  31.         android:layout_alignLeft="@+id/tvDayofWeek"
  32.         android:layout_below="@+id/tvDayofWeek"
  33.         android:layout_marginTop="15dp"
  34.         android:text="temperature" />
  35.  
  36.     <TextView
  37.         android:id="@+id/tvWeather"
  38.         android:layout_width="wrap_content"
  39.         android:layout_height="wrap_content"
  40.         android:layout_alignLeft="@+id/tvTemperature"
  41.         android:layout_below="@+id/tvTemperature"
  42.         android:layout_marginTop="15dp"
  43.         android:text="weather" />
  44.  
  45. </RelativeLayout>

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2.     xmlns:tools="http://schemas.android.com/tools"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="match_parent"
  5.     android:background="@drawable/city"
  6.     tools:context=".WeatherActivity" >
  7.  
  8.     <LinearLayout
  9.         android:id="@+id/linearLayout1"
  10.         android:layout_width="match_parent"
  11.         android:layout_height="wrap_content"
  12.         android:orientation="horizontal" >
  13.  
  14.         <EditText
  15.             android:id="@+id/etCity"
  16.             android:layout_width="0dp"
  17.             android:layout_height="wrap_content"
  18.             android:layout_marginLeft="10dp"
  19.             android:layout_marginTop="20dp"
  20.             android:layout_weight="1"
  21.             android:background="@android:drawable/edit_text"
  22.             android:drawableLeft="@drawable/etcity"
  23.             android:drawablePadding="5dp"
  24.             android:ems="10"
  25.             android:hint="@string/etCity" >
  26.  
  27.             <requestFocus />
  28.         </EditText>
  29.  
  30.         <ImageButton
  31.             android:id="@+id/btnQuery"
  32.             android:layout_width="50dp"
  33.             android:layout_height="50dp"
  34.             android:layout_marginTop="20dp"
  35.             android:background="@null"
  36.             android:src="@drawable/serch" />
  37.     </LinearLayout>
  38.  
  39.     <ListView
  40.         android:id="@+id/lvFutureWeather"
  41.         android:layout_width="match_parent"
  42.         android:layout_height="wrap_content"
  43.         android:layout_below="@+id/linearLayout1"
  44.         android:layout_centerHorizontal="true"
  45.         android:layout_marginLeft="10dp"
  46.         android:layout_marginRight="10dp"
  47.         android:dividerHeight="10dp"
  48.         android:layoutAnimation="@anim/weather_list_layout_animation" >
  49.     </ListView>
  50.  
  51. </RelativeLayout>

三、运行中遇到的问题

刚开始运行的时候显示成功但是不出来天气预报，后来询问过同学之后，修改了代码解决了。


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