Auto Network detect using Broadcast receiver
636 views.When using application suddenly if the network is OFF or ON we can detect using the broadcast receiver.
Please refer below code for that
step1: Create one class that extends as an application like below
TestApp.Java
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package com.androindian.raj.test; import android.app.Application; import android.content.IntentFilter; import android.net.ConnectivityManager; public class TestApp extends Application{ NetworkConnectivity listner; private static TestApp mInstance; IntentFilter filter; private boolean isregistered; @Override public void onCreate() { super.onCreate(); mInstance=this; filter=new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION); listner=new NetworkConnectivity(); } public void setConnectivityListener(NetworkConnectivity.ConnectivityReceiverListener listener) { NetworkConnectivity.connectivityReceiverListener = listener; registerReceiver(listner,filter); isregistered=true; } public void resetConnectivityListener(NetworkConnectivity.ConnectivityReceiverListener listener){ if (isregistered) { isregistered=false; NetworkConnectivity.connectivityReceiverListener = null; unregisterReceiver(listner); } } public static TestApp getInstance() { return mInstance; } } |
Step2:
Add that class name in the manifest file within Application tag like below
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<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.androindian.raj.test"> <uses-permission android:name="android.permission.INTERNET"></uses-permission> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" <strong><span style="color: #ff6600;"> android:name="TestApp"</span></strong> 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> |
Step3:
Create one more class on name of NetworkConnectvity.Java that extends as a broadcast receiver
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package com.androindian.raj.test; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkInfo; class NetworkConnectivity extends BroadcastReceiver { public static ConnectivityReceiverListener connectivityReceiverListener; @Override public void onReceive(Context context, Intent intent) { boolean isConnected=isnetworkok(); if (connectivityReceiverListener != null) { connectivityReceiverListener.onNetworkConnectionChanged(isConnected); } } public boolean isnetworkok(){ ConnectivityManager manager= (ConnectivityManager) TestApp.getInstance().getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE); if (manager!=null){ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) { Network[] network = manager.getAllNetworks(); NetworkInfo info=manager.getActiveNetworkInfo(); if (info!=null&&info.isConnectedOrConnecting()){ return true; } /* if (network.length >= 0) { for (Network mntework : network) { info = manager.getNetworkInfo(mntework); if (info.getState().equals(NetworkInfo.State.CONNECTED)) { return true; } } }*/ }else { NetworkInfo[] networkInfos = manager.getAllNetworkInfo(); if (networkInfos != null) { for (NetworkInfo info : networkInfos) { if (info.getState() == NetworkInfo.State.CONNECTED) { return true; } } } } } return false; } public interface ConnectivityReceiverListener { void onNetworkConnectionChanged(boolean isConnected); } } |
Step4:
Finally which class you want to check internet automatically add like below
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package com.androindian.raj.test; import android.content.Context; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkInfo; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity implements NetworkConnectivity.ConnectivityReceiverListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override protected void onStart() { super.onStart(); TestApp.getInstance().setConnectivityListener(this); } @Override protected void onPause() { TestApp.getInstance().resetConnectivityListener(null); super.onPause(); } @Override public void onNetworkConnectionChanged(boolean isConnected) { if(isConnected){ Toast.makeText(getApplicationContext(), "Net is there", Toast.LENGTH_LONG).show(); }else { Toast.makeText(getApplicationContext(), "Net is not there", Toast.LENGTH_LONG).show(); } } } |
