Android App: Display Network Unavailable Warning with AlertDialog

This code demonstrates how to check for network availability and display a warning message using an AlertDialog in an Android app.

public void run() {
    if (!isNetworkAvailable()) {
        LogHelper.d(TAG, 'Network is not available.');
        
        return;
    }
    
    // Display the warning message
    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setTitle('Network Warning')
           .setMessage('Network is not available.')
           .setPositiveButton('Ok', new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                   // User clicked OK button
               }
           });
    AlertDialog alert = builder.create();
    alert.show();
}

Explanation:

1. Network Check: The isNetworkAvailable() method (not shown here) checks if a network connection is available.
2. Alert Creation: An AlertDialog.Builder is used to construct the warning message.
3. Title and Message: The dialog's title is set to 'Network Warning', and the message displays 'Network is not available.'
4. Positive Button: A 'Ok' button is added to dismiss the dialog.
5. Display Alert: The alert.show() method displays the AlertDialog to the user.