> I'm trying to develop my first home screen widget for android, but > don't know how to use buttons. I've followed the tutorial > http://android-developers.blogspot.com/2009/04/introducing-home-screen-widgets-and.html > but it doesn't show how to use buttons. Somewhere I read about > RemoteViews, PendingIntents and the setOnClickPendingIntent method, > but I don't really know how to use them. > Therefor, I have some questions: > 1) How do I set an onClickListener (or an OnClickPendingIntent() ) for > the button?
In the tutorial you cite, Jeff Sharkey uses setOnClickPendingIntent() for clicks on the widget as a whole. However, that works just as well for clicks just on a button -- provide the button's ID as the first parameter. > 1,2) where do I set this? There is no onCreate() method.. You would set it wherever you are building your RemoteViews. > 2) This method starts an Intent, but how do I use an Intent to just > run a method? I do not want to start any activity. You can't use an Intent to "just run a method". However, an Intent does not need to start an activity. Jeff's example uses PendingIntent.getActivity() to launch an activity, but you could use PendingIntent.getService() or PendingIntent.getBroadcast() to communicate with other components. I can point you at some source code for an app widget that demonstrates the use of buttons communicating with a back-end service -- visit: http://commonsware.com/AdvAndroid/ and download the source code to my one book. In the ZIP file, you will find an AppWidget/TwitterWidget project. As the name suggests, it is a widget that displays the latest tweet in your friends' timeline. It also has a button to refresh and a button to configure the widget. The configure button pops an activity, but the refresh button triggers the same logic as is invoked when updateTimeMillis elapses. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
