By using the connectivity service, we can check if the device is hooked to the network or not. If network connection is present then we can detect if it is of type Wifi or mobile data.
Android Manifest file
<? xml version = "1.0" encoding = "utf-8" ?> < manifest xmlns:android = "http://schemas.android.com/apk/res/android" package = "com.checknetwork" android:versionCode = "1" android:versionName = "1.0" > < uses-sdk android:minSdkVersion = "8" android:targetSdkVersion = "17" /> < uses-permission android:name = "android.permission.ACCESS_NETWORK_STATE" /> < application android:allowBackup = "true" android:icon = "@drawable/ic_launcher" android:label = "@string/app_name" android:theme = "@style/AppTheme" > < activity android:name = "com.checknetwork.MainActivity" android:label = "@string/app_name" > < intent-filter > < action android:name = "android.intent.action.MAIN" /> < category android:name = "android.intent.category.LAUNCHER" /> </ intent-filter > </ activity > </ application > </ manifest > |
Java Code
Let’s now see the java code for this:
MainActivity.java
package com.checknetwork; import android.app.Activity; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); ConnectivityManager cmanager = (ConnectivityManager)getSystemService( this .CONNECTIVITY_SERVICE); NetworkInfo info = cmanager.getActiveNetworkInfo(); if (info!= null && info.isConnected()) { if (info.getType() == ConnectivityManager.TYPE_WIFI) { Toast.makeText(MainActivity. this , "Wifi" , Toast.LENGTH_LONG).show(); } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) { Toast.makeText(MainActivity. this , "mobile" , Toast.LENGTH_LONG).show(); } } else { Toast.makeText(MainActivity. this , "Not connected" , Toast.LENGTH_LONG).show(); } } } |