Java tutorial
/* * Copyright (c) 2014. Ye Lin Aung * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.yelinaung.android.utils; import android.annotation.TargetApi; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.AsyncTask; import android.os.Build; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpDelete; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.methods.HttpPut; import org.apache.http.impl.client.DefaultHttpClient; import java.io.IOException; import java.util.ArrayList; import java.util.List; /** * Created by Ye Lin Aung on 14/01/20. */ public class NetUtils { // Check the device is connected to the internet public static boolean isOnlineOrNot(Context c) { NetworkInfo netInfo = null; try { ConnectivityManager cm = (ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE); netInfo = cm.getActiveNetworkInfo(); } catch (SecurityException e) { e.printStackTrace(); } return netInfo != null && netInfo.isConnectedOrConnecting(); } @TargetApi(Build.VERSION_CODES.CUPCAKE) public static void getStatus(String weburl, String ways) { try { List<String> httpWays = new ArrayList<String>(); httpWays.add(ways.toUpperCase()); httpWays.add(weburl); new checkWebStatus().execute(httpWays); } catch (NullPointerException ne) { ne.printStackTrace(); } } //Check the website http response code no @TargetApi(Build.VERSION_CODES.CUPCAKE) private static class checkWebStatus extends AsyncTask<List<String>, Void, String> { @Override protected String doInBackground(List<String>... weburl) { Integer httpResponse = 0; HttpClient client = new DefaultHttpClient(); HttpResponse response = null; try { if (weburl[0].get(0).equals("POST")) { HttpPost httptype = new HttpPost(weburl[0].get(1)); try { response = client.execute(httptype); } catch (IOException e) { e.printStackTrace(); } } else if (weburl[0].get(0).equals("GET")) { HttpGet httptype = new HttpGet(weburl[0].get(1)); try { response = client.execute(httptype); } catch (IOException e) { e.printStackTrace(); } } else if (weburl[0].get(0).equals("PUT")) { HttpPut httptype = new HttpPut(weburl[0].get(1)); try { response = client.execute(httptype); } catch (IOException e) { e.printStackTrace(); } } else { HttpDelete httptype = new HttpDelete(weburl[0].get(1)); try { response = client.execute(httptype); } catch (IOException e) { e.printStackTrace(); } } assert response != null; httpResponse = response.getStatusLine().getStatusCode(); } catch (SecurityException se) { se.printStackTrace(); } return httpResponse.toString(); } } }