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    <p>You can use <code>runOnUiThread</code> and <code>ConnectivityManager</code> for checking Network Status after a fixed time and show message to user as:</p> <pre><code>private boolean mNetworkRunning=false; private ConnectivityManager connMgr; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView (R.layout.main); mClockRunning=true; NetworkStatusThread(); } @Override protected void onDestroy() { super.onDestroy(); // Stop Thread Here. mNetworkRunning=false; } public void NetworkStatusThread(){ Thread th=new Thread(){ @Override public void run(){ try { while(mNetworkRunning) { Thread.sleep(1000L);// set time here for refresh time in show update to user NetworkActivity.this.runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub if(mNetworkRunning) { boolean statu=isMobileNetworkAvailable(); if(statu==true) Toast.makeText(YourCurrentActivity.this, "Network Available",Toast.LENGTH_LONG).show(); else Toast.makeText(YourCurrentActivity.this, "Network Not Available",Toast.LENGTH_LONG).show(); } }; } }catch (InterruptedException e) { // TODO: handle exception } } }; th.start(); } public boolean isMobileNetworkAvailable(Context con){ if(null == connMgr){ connMgr = (ConnectivityManager)con.getSystemService(Context.CONNECTIVITY_SERVICE); } NetworkInfo wifiInfo = connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI); NetworkInfo mobileInfo = connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); if(wifiInfo.isAvailable()){ return true; }else if(mobileInfo.isAvailable()){ return true; }else{ return false; } } </code></pre> <p>and second option without using Thread then you can register an receiver for <code>CONNECTIVITY_CHANGE</code> Manifest.xml as:</p> <pre><code>&lt; !-- Needed to check when the network connection changes --&gt; &lt; uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt; &lt; receiver android:name="you_package_name.ConnectionChangeReceiver" android:label="NetworkConnection"&gt; &lt; intent-filter&gt; &lt; action android:name="android.net.conn.CONNECTIVITY_CHANGE"/&gt; &lt; /intent-filter&gt; &lt; /receiver&gt; </code></pre> <p>in code:</p> <pre><code>public class ConnectionChangeReceiver extends BroadcastReceiver { private static final String TAG =ConnectionChangeReceiver.class.getSimpleName(); @Override public void onReceive(Context context, Intent intent) { boolean success = false; ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState(); //WIFI if (State.CONNECTED == state) { success = true; } //GPRS state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState(); if (State.CONNECTED != state) { success = true; } if (!success) { Toast.makeText(context, "SHOW STATUS HERE", Toast.LENGTH_LONG).show(); } } </code></pre>
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    1. POHow to monitor network state in activity until onDestroy using a background thread in Android?
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    1. USρяσѕρєя K
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    1. POHow to monitor network state in activity until onDestroy using a background thread in Android?
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    1. COthank you imran.its helped me alot.is there any solution to notify status when the status changed with out using any thread
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    2. CO@srinu : yes see my edit answer using broadcastreceiver
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    3. CO@srinu : i known only these two way i told u.these maybe helpful or solve your issue
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