@Robert Greenwalt Thank you very much. First because you got me to think in the right way, that changing the setting does not trigger a CONNECTIVITY_CHANGE; and second for the suggestion to use the ContentObserver. That enabled me to find this on StackOverflow ...
boolean mobileDataAllowed = Settings.Secure.getInt(getContentResolver(), "mobile_data", 1) == 1; Now, if i can get a content observer notification for this change, or for any change and then filter this one, i will have exactly what i want. I may be back with another question :) *Mick* On Monday, December 28, 2015 at 2:18:47 PM UTC-5, Robert Greenwalt wrote: > > 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://www.google.com/url?q=http%3A%2F%2Fstackoverflow.com%2Fquestions%2F16866438%2Fgetting-what-has-changed-in-contentobserver&sa=D&sntz=1&usg=AFQjCNFRKRMpQNwF22FdD8-LzIlBNaTltA> > to > watch for Settings changes? > > R > > On Sun, Dec 27, 2015 at 4:13 PM, Mick Dawdy <[email protected] > <javascript:>> 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/a1f02c8c-7863-46a5-bfd9-06b813b79773%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
