CONNECTIVITY_CHANGE is not a broadcast about the setting. You said: > > > It all works except that when WiFi is enabled the BroadcastReceiver does > not get a notification when the user turns on mobile data from Settings. If > there is a way around this limitation i would appreciate hearing about it.
This broadcast is instead telling you when the device establishes and loses a data connection. See the docs <http://developer.android.com/reference/android/net/ConnectivityManager.html>. So if you're on wifi and turn cell data on or off, nothing will happen and a CONNECTIVITY_CHANGE bcast shouldn't be received. Maybe try something like this <http://stackoverflow.com/questions/16866438/getting-what-has-changed-in-contentobserver> to watch for Settings changes? R On Sun, Dec 27, 2015 at 4:13 PM, Mick Dawdy <[email protected]> wrote: > For the many threads, blogs, examples and tutorials on the topic of > Broadcast Receivers and mobile data connectivity I have not seen this > question asked or answered. > > I believe, based on experimenting with one of my Apps, that the answer to > this question is a distinct NO, that while WiFi is enabled, a Broadcast > Receiver listening for Mobile Data CONNECTIVITY_CHANGE does not receive a > broadcast notification when that event occurs. If I am wrong and have > missed something or if you can confirm this independently please let me > know. > > My App is a home screen Widget with two classes, ActiveMobileData is the > AppWidgetProvider and ConnectivityChangeReceiver is the BroadcastReceiver. > There is no App just the home screen widget. It simply toggles a home > screen icon between red and green to indicate the current mobile data > state. It has worked perfectly for several months with about 100 users. > > I decided to add the BroadcastReceiver to pick up clicks from Settings. > This code is also straight forward - it determines the current state of > mobile data, and uses a global boolean variable set by AppWidgetProvider to > determine if the home screen icon is red or green. Then it simply ensures > that the icon color matches the mobile data state. > > It all works except that when WiFi is enabled the BroadcastReceiver does > not get a notification when the user turns on mobile data from Settings. If > there is a way around this limitation i would appreciate hearing about it. > > I do think that the code will not help to answer the question as my > assertion is either true or false regardless and i hope that someone has > knowledge of this, but here is the code for the widget and then for the > receiver. I left out some details to keep it somewhat brief.* > iconEnabled* is the global boolean variable shared between > the AppWidgetProvider and BroadcastReceiver classes ... > > *public class ActiveMobileData extends AppWidgetProvider {* > *static boolean iconEnabled;* > *@Override* > *public void onReceive(Context context, Intent intent) {* > * if (intent.getAction() != null)* > * super.onReceive(context, intent);* > * else {* > * context.startService(new Intent(context, ToggleService.class));* > * }* > *}* > *@Override* > *public void onUpdate(Context context, AppWidgetManager appWidgetManager, > int[]appWidgetIds) {* > * context.startService(new Intent(context, ToggleService.class));* > *}* > *public static class ToggleService extends IntentService {* > * public ToggleService() {* > * super("ActiveMobileData$ToggleService");* > * }* > * @Override* > * protected void onHandleIntent(Intent intent) {* > * ComponentName cn = new ComponentName(this, > ActiveMobileData.class);* > * AppWidgetManager mgr = AppWidgetManager.getInstance(this);* > * mgr.updateAppWidget(cn, buildUpdate(this));* > * }* > * private RemoteViews buildUpdate(Context context) {* > * RemoteViews updateViews = new > RemoteViews(context.getPackageName(), R.layout.widget);* > * if (!isMobileDataEnabled(getApplicationContext())) {* > * updateViews.setImageViewResource(R.id.mobileDataState, > R.mipmap.ic_launcher_g);* > * enableMobileData(getApplicationContext(), true);* > * iconEnabled = true;* > * } else {* > * updateViews.setImageViewResource(R.id.mobileDataState, > R.mipmap.ic_launcher_r);* > * enableMobileData(getApplicationContext(), false);* > * iconEnabled = false;* > * }* > * Intent i = new Intent(this, ActiveMobileData.class);* > * PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);* > * updateViews.setOnClickPendingIntent(R.id.mobileDataState, pi);* > * return updateViews;* > * }* > * public boolean isMobileDataEnabled(Context context) {* > * // ... the code here is the one that uses Java reflection* > * }* > * private void enableMobileData(Context context, boolean enabled) {* > * // ... the code here is the one that uses Java reflection* > * }* > > * } // public static class ToggleService* > *} // public class ActiveMobileData* > > Following is the code for the BroadcastReceiver ... > > *public class ConnectivityChangeReceiver extends BroadcastReceiver {* > * @Override* > * public void onReceive (Context context, Intent intent) {* > * handleIntent(context);* > * }* > * protected void handleIntent(Context context) {* > * ComponentName cn = new ComponentName(context, > ActiveMobileData.class);* > * AppWidgetManager mgr = AppWidgetManager.getInstance(context);* > * mgr.updateAppWidget(cn, buildUpdate(context));* > * }* > * private RemoteViews buildUpdate(Context context) {* > * RemoteViews updateViews = new > RemoteViews(context.getPackageName(), R.layout.widget);* > * if (!ActiveMobileData.iconEnabled && > isMobileDataEnabled(context)) {* > * ActiveMobileData.iconEnabled = true;* > * updateViews.setImageViewResource(R.id.mobileDataState, > R.mipmap.ic_launcher_g);* > * Intent i = new Intent(context, ActiveMobileData.class);* > * PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, > 0);* > * updateViews.setOnClickPendingIntent(R.id.mobileDataState, > pi);* > * } else* > * if (ActiveMobileData.iconEnabled && > !isMobileDataEnabled(context)) {* > * ActiveMobileData.iconEnabled = false;* > * updateViews.setImageViewResource(R.id.mobileDataState, > R.mipmap.ic_launcher_r);* > * Intent i = new Intent(context, ActiveMobileData.class);* > * PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, > 0);* > * updateViews.setOnClickPendingIntent(R.id.mobileDataState, > pi);* > * }* > * return updateViews;* > * }* > * private boolean isMobileDataEnabled(Context context) {* > * // ... Identical code to that in the AppWidgetProvider* > * }* > *} // class ConnectivityChangeReceiver* > > *Mick* > > -- > You received this message because you are subscribed to the Google Groups > "Android Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/android-developers. > To view this discussion on the web visit > https://groups.google.com/d/msgid/android-developers/94e80d48-bedf-4ba0-b82f-b29d687981da%40googlegroups.com > <https://groups.google.com/d/msgid/android-developers/94e80d48-bedf-4ba0-b82f-b29d687981da%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/CABrF01BW8nbuMQPTf2OrSCsqVy7wu1Yq5TrnbJsMk5pg37t31Q%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
