I have used a switch in my android code. If internet service is available then only allow toggle else show a toast message. How do I achieve this? I am unable to do so using
switch.setOnCheckedChangeListener().
The check is working only if I press the switch button twice.
aSwitch.setEnabled(false);
works only after I click once
First create a boolean that carries a flag :
boolean checkInternetFlag = false;
Then create a method that check if internet is available like this for example:
public final boolean isInternetOn() {
ConnectivityManager connectivityManager
= (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
You will also need to add this permission in your manifest :
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Then you can do what you want in a condition like this :
checkInternetFlag = isInternetOn();
if (!checkInternetFlag) {
Toast.makeText(getActivity(), "Internet not available", Toast.LENGTH_LONG).show();
}
Also you can disable your toggle switch like this :
aSwitch.setEnabled(false);
And to make switch not clickable use :
aSwitch.setClickable(false);
The following method will catch if there is a change occured to networkstate:
1)Add this code to onCreate():
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
NetworkChangeReceiver receiver = new NetworkChangeReceiver();
registerReceiver(receiver, filter);
2) Add OnDestroy() Method:
@Override
protected void onDestroy() {
Log.v(LOG_TAG, "onDestory");
super.onDestroy();
unregisterReceiver(receiver);
}
3) Add the Following Code to your activity:
public class NetworkChangeReceiver extends BroadcastReceiver
{
@Override
public void onReceive(final Context context, final Intent intent)
{
Log.v(LOG_TAG, "Receieved notification about network status");
isNetworkAvailable(context);
}
private boolean isNetworkAvailable(Context context)
{
ConnectivityManager connectivity = (ConnectivityManager)
context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null)
{
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
{
for (int i = 0; i < info.length; i++)
{
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
if(!isConnected)
{
Log.v(LOG_TAG, "Now you are connected to Internet!");
aSwitch.setEnabled(true);
isConnected = true;
}
return true;
}
}
}
}
Toast.makeText(YourActivity.this, "Internet is not available", Toast.LENGTH_SHORT).show();
aSwitch.setEnabled(false);
isConnected = false;
return false;
}
}
4)Add this permission in your manifest file :
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Hopefully this relates to your requirement.
