For the compiler error: Replace startActivity(new Intent(this, BroadcastActivity.class)); with startActivity(new Intent(MainMenuActivity.this, BroadcastActivity.class));
The call to startActivity is within the (anonymous) inner-class 'new View.OnClickListener()' and 'this' points to the OnClickListener's instance. Since OnClickListener is not a Context (i.e. it does not implement Context), you get the compiler error. You don't want this inner-class to implement Context. Instead, you want to refer back to the inner-class' outer-class, which is MainMenuActivity. You can tell the compiler to do so, by appending 'MainMenuActivity.' to 'this'. You may want to read up on Java (non-static) inner-classes. Welcome to Android programming :-) On Jan 21, 4:29 pm, LenseOnLife <[email protected]> wrote: > Hi, > > Please bear with me, I am a newbie geriatric who started programming > when computers had discrete transistors and am only now returning > after about a decade of forced retirement. Spent the last year > using .NET and now trying to come to grips with Android/Java. > Evidently, I still need to purchase some more books, but in the > mantime, someone out there might be able to put me back onto the > straight and narrow. > > OVERVIEW: In the manifest I start with 'inthebeginning' activity. > This does nothing more than start another activity called > MainMenuActivity which in turn has three buttons, each of which calls > their own activity. InTheBeginningActivity works fine and amazed me > that I actually got something working so easily. > > InTheBeginningActivity > > package com.cit.BroadcastSim; > > import android.app.Activity; > import android.content.Intent; > import android.os.Bundle; > > public class InTheBeginningActivity extends Activity { > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.splash); // Inflate the > inthebeginning.xml file > > startActivity(new Intent(this, MainMenuActivity.class)); > // Since we wont be coming back to this activity ever again > InTheBeginningActivity.this.finish(); > } > > } > > Now for the troublesome one. Although there are three buttons, I have > only tried coding one adn have come a cropper. > > package com.cit.BroadcastSim; > > import android.app.Activity; > import android.content.Intent; > import android.os.Bundle; > import android.widget.Button; > import android.view.*; > > public class MainMenuActivity extends Activity { > // Launched by InTheBeginningActivity. > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.mainmenu); // Inflate the > mainmenu.xml file > > // Set up listeners for the three menu buttons > // Broadcast, Setup and Exit > // Firstly we have to find the buttons. > // We do this by using their IDs and findViewById() > > Button btnBroadcast = (Button) > this.findViewById(R.id.btnBroadcast); > btnBroadcast.setOnClickListener(new View.OnClickListener(){ > public void onClick(View v){ > // Start Activity Class Broadcast > startActivity(new Intent(this, > BroadcastActivity.class)); > // Since we wont be coming back to this activity ever > again > MainMenuActivity.this.finish(); > } > }); > } > > } > > The line with startActivity has a lightbulb with a red x :-( and teh > error message when I hover over it is: > The constructor Intent(new View.OnClickListener(){},Class > <BroadcastActivity>) is undefined > > Everything within brackets is underlined in red and when I hover it I > get the same as above with a hyperlinked hint > remove arguments to match Intent() > which works, the error goes, but then I am left with > startActivity(new Intent()); > which doesn't do very much! > > Have scratched my head till all the hair has fallen out, so can > someone out there in programming land tell me (gently) what I am doing > wrong. > > Thanks -- You received this message because you are subscribed to the Google Groups "Android Developers" 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-developers?hl=en
