<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.krishanandroid.openweatherproject">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
// actvity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.krishanandroid.openweatherproject.MainActivity">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter zipcode"
android:textSize="16sp"
android:textColor="@color/colorAccent"
android:id="@+id/et_zipcode"
android:padding="12dp"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Check Weather"
android:textSize="16sp"
android:id="@+id/button_weather"
android:padding="12dp"/>
<TextView
android:id="@+id/tv_main"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Main"
android:padding="12dp"/>
<TextView
android:id="@+id/tv_Description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Description"
android:padding="12dp"/>
<TextView
android:id="@+id/tv_temp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Temperature"
android:padding="12dp"/>
<TextView
android:id="@+id/tv_humidity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Humidity"
android:padding="12dp"/>
<TextView
android:id="@+id/tv_country"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Country"
android:padding="12dp" />
<TextView
android:id="@+id/tv_location"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Location"
android:padding="12dp"/>
</LinearLayout>
// MainActivity.java
package com.krishanandroid.openweatherproject;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class MainActivity extends AppCompatActivity {
TextView mHumidity, mTemp, mCountry, mLocation, mMain, mDesc;
EditText mZipCode;
Button mCheckWeather;
MyTask myTask;
private class MyTask extends AsyncTask<String, Void, String>{
URL url;
HttpURLConnection con;
InputStream i;
InputStreamReader ir;
BufferedReader br;
String s;
StringBuilder sb;
@Override protected String doInBackground(String... strings) {
try {
url=new URL(strings[0]);
con= (HttpURLConnection) url.openConnection();
i=con.getInputStream();
ir=new InputStreamReader(i);
br=new BufferedReader(ir);
sb=new StringBuilder();
s=br.readLine();
while (s!=null){
sb.append(s);//add each json line to string builder
s=br.readLine();//read each line from buffered reader }
//return json to onpost return sb.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
Log.d("OWP","URL IS WRONG" + e);
} catch (IOException e) {
e.printStackTrace();
Log.d("OWP","NETWORK PROBLEM" + e);
}
return null;
}
@Override protected void onPostExecute(String s) {
super.onPostExecute(s);
if (s==null)
{
Toast.makeText(MainActivity.this,"No data found",Toast.LENGTH_LONG).show();
return;
}
try {
JSONObject jsonObject = new JSONObject(s); // Getting data in json object JSONArray jsonArray = jsonObject.getJSONArray("weather");
for(int i=0;i<jsonArray.length();i++){
JSONObject obj=jsonArray.getJSONObject(i);
String main=obj.getString("main");
String description=obj.getString("description");
mMain.setText("Main: "+main);
mDesc.setText("Description: "+description);
}
JSONObject main=jsonObject.getJSONObject("main");
String temp=main.getString("temp");
String humidity=main.getString("humidity");
mTemp.setText("Temp: "+temp); // temperature
mHumidity.setText("Humidity: "+humidity); // humidity
JSONObject sys=jsonObject.getJSONObject("sys");
String country=sys.getString("country"); // set country name
mCountry.setText("Country: "+country);
String name=jsonObject.getString("name");
mLocation.setText("Name: "+name); // set location name
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this, "Disconnect", Toast.LENGTH_SHORT).show();
}
}
}
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// initialize variables mHumidity = findViewById(R.id.tv_humidity);
mTemp = findViewById(R.id.tv_temp);
mCountry = findViewById(R.id.tv_country);
mLocation = findViewById(R.id.tv_location);
mMain = findViewById(R.id.tv_main);
mDesc = findViewById(R.id.tv_Description);
mZipCode = findViewById(R.id.et_zipcode);
mCheckWeather = findViewById(R.id.button_weather);
myTask = new MyTask();
// button click listener
mCheckWeather.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
if (checkInternet()==true)
{
String zipcode = mZipCode.getText().toString();
myTask.execute("http://api.openweathermap.org/data/2.5/weather?
zip="+zipcode+",in&appid=bae1ba8dfee48b1");
mCheckWeather.setEnabled(false);
}else {
Toast.makeText(MainActivity.this,"No internet",Toast.LENGTH_LONG).show();
}
}
});
}
public boolean checkInternet(){
ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
if (networkInfo!=null && networkInfo.isConnected()== true){
return true; // internet available }else{
return false;//means no internet }
}
}
Live Demo: https://www.youtube.com/watch?v=5neuwaL-09Y
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