android - how to prevent webview to load when no internet connection

Question

I have an Android app which has a webview. When there\'s no internet connection, webview will display page not available. I want to make this look like an app as much as pos

Answer 1

You can check device is connect to internet through data or wifi by following code

ConnectivityManager manager = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo i = manager.getActiveNetworkInfo();
boolean hasConnect = (i!= null && i.isConnected() && i.isAvailable());

if(hasConnect)
                    {
                       // show the webview
                    }
else
 {
    // do what ever you need when when no internet connection
 }

After user go to webview , then if the connect is lost you can capture that event from following code

 webView.setWebViewClient(new Callback());

 public class Callback extends WebViewClient{
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl){
        Toast.makeText(getApplicationContext(), "Failed loading app!, No Internet Connection found.", Toast.LENGTH_SHORT).show();


    }
}  

following permissions need to give