Android 基于百度定位sdk ，获取城市，使用json解析天气

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我是靠谱客的博主温柔鸡翅，最近开发中收集的这篇文章主要介绍Android 基于百度定位sdk ，获取城市，使用json解析天气，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

关于百度定位sdk的使用参考官方文档 https://lbsyun.baidu.com/index.php?title=android-locsdk

JSON 解析参考了 https://blog.csdn.net/double2hao/article/details/68482900

使用的天气接口 http://wthrcdn.etouch.cn/weather_mini?city=北京

demo下载：https://download.csdn.net/download/weixin_42447313/10483975

实现后的效果

布局代码

<?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:id="@+id/activity_main"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.yazz.yaweather.MainActivity">


<TextView

android:id="@+id/location_view"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:gravity="center"

android:textSize="16dp" />


<EditText

android:id="@+id/et1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_alignParentStart="true"

android:layout_below="@+id/location_view"

android:hint="请输入城市名称:" />


<RelativeLayout

android:id="@+id/rl1"

android:layout_width="match_parent"

android:layout_height="100dp"

android:layout_below="@id/et1"

android:layout_marginTop="20dp">


<TextView

android:id="@+id/weather_view"

android:layout_width="192dp"

android:layout_height="match_parent"

android:gravity="center"

android:textSize="16dp" />


<ImageView

android:id="@+id/iv1"

android:layout_width="192dp"

android:layout_height="match_parent"

android:layout_toRightOf="@+id/weather_view"

/>


</RelativeLayout>


<RelativeLayout

android:id="@+id/rl2"

android:layout_width="match_parent"

android:layout_height="100dp"

android:layout_below="@id/rl1"

android:layout_marginTop="20dp">


<TextView

android:id="@+id/weather1_view"

android:layout_width="192dp"

android:layout_height="match_parent"

android:gravity="center"

android:textSize="16dp" />

<ImageView

android:id="@+id/iv2"

android:layout_width="192dp"

android:layout_height="match_parent"

android:layout_toRightOf="@+id/weather1_view"

/>


</RelativeLayout>


<RelativeLayout

android:layout_width="match_parent"

android:layout_height="100dp"

android:layout_below="@id/rl2"

android:layout_marginTop="20dp">


<TextView

android:id="@+id/weather2_view"

android:layout_width="192dp"

android:layout_height="match_parent"

android:gravity="center"

android:textSize="16dp" />


<ImageView

android:id="@+id/iv3"

android:layout_width="192dp"

android:layout_height="match_parent"

android:layout_toRightOf="@+id/weather2_view"

/>

</RelativeLayout>



<Button

android:id="@+id/start_location"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentBottom="true"

android:layout_alignParentStart="true"

android:text="定位并获取天气" />


<Button

android:id="@+id/start_weather"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentEnd="true"

android:layout_alignTop="@+id/start_location"

android:text="获取指定位置天气" />


</RelativeLayout>

定位代码

public Context context;
public static String City= "";
public LocationClient mLocationClient = null;
//LocationClient类是定位SDK的核心类
public BDLocationListener myListener = new MyLocationListener();
public BDLocationUtils(Context context){
this.context = context;
}
public void doLocation(){
//声明LocationClient类

mLocationClient = new LocationClient(context.getApplicationContext());

//注册监听函数

mLocationClient.registerLocationListener( myListener );

//初始化定位

initLocation(); //调用initLocation方法
}
private void initLocation(){
LocationClientOption option = new LocationClientOption();

option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy);

//可选，默认高精度，设置定位模式，高精度，低功耗，仅设备

option.setIsNeedAddress(true);

//可选，设置是否需要地址信息，默认不需要

option.setOpenGps(true);

//可选，默认false,设置是否使用gps

mLocationClient.setLocOption(option);
}
private class MyLocationListener implements BDLocationListener {
@Override

public void onReceiveLocation(BDLocation location) {
//获取定位结果

StringBuffer sb = new StringBuffer(256);

sb.append(location.getCity()); //获取城市

City = location.getCity().replace("市","");//replace 切割字符 去掉“市”

}
}
}

解决安卓6.0以上权问题：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED ||
checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED ||
checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// 申请一个（或多个）权限，并提供用于回调返回的获取码（用户定义）

requestPermissions(new String[]{
Manifest.permission.READ_PHONE_STATE,

Manifest.permission.ACCESS_COARSE_LOCATION,

Manifest.permission.ACCESS_FINE_LOCATION,

Manifest.permission.READ_EXTERNAL_STORAGE,

Manifest.permission.WRITE_EXTERNAL_STORAGE,}, BAIDU_READ_PHONE_STATE);

}
bdLocationUtils.doLocation();//开启定位

bdLocationUtils.mLocationClient.start();//开始定位

textView.setText("当前位置:"+BDLocationUtils.City);

} else {
Log.e("Permissions", "已经有权限了");
}

@Override
public void onRequestPermissionsResult(int requestCode,String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions,grantResults);

switch(requestCode) {
//requestCode即所声明的权限获取码，在checkSelfPermission时传入

case 1:
BAIDU_READ_PHONE_STATE:
if(grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//获取到权限，做相应处理

//调用定位SDK应确保相关权限均被授权，否则会引起定位失败

bdLocationUtils.doLocation();//开启定位

bdLocationUtils.mLocationClient.start();//开始定位

} else{
//没有获取到权限，做特殊处理

Log.e("Permissions","没有权限定位失败");

}
break;

default:
break;

}
}

JSON解析

mRequestQueue = Volley.newRequestQueue(this);
final String city = BDLocationUtils.City;
String city_encode = null;
try {
city_encode = URLEncoder.encode(city,"utf-8");//城市名转为中文

} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
JsonObjectRequest mJsonObjectRequest = new JsonObjectRequest(
"http://wthrcdn.etouch.cn/weather_mini?city="+city_encode,// 根据城市名获取天气JSon


null,

new Response.Listener< JSONObject>() {
@Override

public void onResponse(JSONObject response) {
try {
JSONObject data = new JSONObject(response.getString("data"));

JSONArray forecast = data.getJSONArray("forecast");

JSONObject todayWeather = forecast.getJSONObject(0);



String wendu = data.getString("wendu") + "n";

//String ganmao = data.getString("ganmao") + "n";

String high = todayWeather.getString("high") + "n";

String low = todayWeather.getString("low") + "~";

String date = todayWeather.getString("date") + "";

String type = todayWeather.getString("type")+"n";

String city = data.getString("city") + "n";

textView1.setText(city+date+type+"实时温度:"+wendu + low + high );

天气图标：

if (todayWeather.getString("type").toString().contains("多云")){
imageView1.setImageResource(R.drawable.duoyun1);
}else if(todayWeather.getString("type").toString().contains("晴")){
imageView1.setImageResource(R.drawable.qingtian);
}else if(todayWeather.getString("type").toString().contains("阴")){
imageView1.setImageResource(R.drawable.yintian);