Teena wrote: > -----Original Message----- > From: android-beginners@googlegroups.com > [mailto:android-beginn...@googlegroups.com] On Behalf Of Raymond Rodgers > Sent: Sunday, January 04, 2009 11:45 AM > To: android-beginners@googlegroups.com > Subject: [android-beginners] Re: notification > > > Teena wrote: > >> Thanks for the response, Cyril. Is this how I would do it? I'm still >> not seeing any text feedback on the screen when I click the button. >> >> > Log will put strings into a log that's viewable in debug mode in Eclipse > with the Logcat view added to the overall list of views. That's very useful > for debugging purposes [obviously] without displaying anything to the app's > user. However, if you want to display something on screen, you can use the > Toast class > http://code.google.com/android/reference/android/widget/Toast.html to > display a message on screen briefly. The message will fade automatically > after a short amount of time, and could be useful for what you're trying to > accomplish. > > Raymond > > > Thanks Raymond, I really appreciate the help. One more question though, I'm > trying to use the toast widget properly, but cannot figure out the 'context' > that I need to put in as a parameter. Updated code below: > > package test.app; > > import android.app.Activity; > import android.os.Bundle; > import android.view.View; > import android.view.View.OnClickListener; > import android.widget.Button; > import android.widget.Toast; > > public class test_app extends Activity { > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > /* Find the button from our XML-layout. */ > Button b = (Button)this.findViewById(R.id.btn_open_search); > b.setOnClickListener(new OnClickListener() { > public void onClick(View agr0) { > // Place code to handle button click here > Toast.makeText(test_app, "btn-click", 9); > } > }); > } > } > > > The error I'm getting is 'test_app' cannot be resolved, but test_app is my > activity as specified in the AndroidManifest.xml. What am I doing wrong? > > > Instead of "test_app" use "this" in Toast.makeText(). That's a special pointer (ok, Java zealots, I know that's a C/C++ term, but the concept's the same :-) ) to the object in which the function is being referenced: the test_app object of your application. I really think there should be a version of that function that doesn't require the Context parameter, so that using "this" wouldn't be necessary, but at the moment it is required.
Raymond --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
