getting buttons to work

[KanedaSyndrome]

Hey

I am now at a stage where I need buttons to work so that I can get my code to react to a button press, for the time being, what I want to do is to have my layout view change once a button is pushed.

So as like in a menu, you push a button and you are taken to another screen. Like that.

I read somewhere that you have to create some way for the system to recognize button presses, found something short about it on this site:

http://code.google.com/android/devel...fications.html

But my java knowledge is still a bit lacking, I got along ok'ish on the xml now, but now I need a way to connect different layouts together so I can have a branching menu like system.

I imagine it would be something like creating a new class designed for this specifically and then that is called or something?

Hope someone can point me in the right direction.

[jmejiaa]

I havent looked much into the layouts and how to change them, but for a button press you need to create an event listener,, see below:

final Button ButtonName= (Button) findViewById(R.id.buttonID);

ButtonName.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
// Your code here

}
});

[KanedaSyndrome]

Thanks, will look into this.

[KanedaSyndrome]

I havent looked much into the layouts and how to change them, but for a button press you need to create an event listener,, see below:

final Button ButtonName= (Button) findViewById(R.id.buttonID);

ButtonName.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
// Your code here

}
});

Ok to specify my question a bit more based on this:

Take this code here, taken from a standard hello world project that I have continued to build on, if I wanted to make buttons work with this, where would I put the code that you wrote? I have buttons and such made in xml graphics files, and they have been given ids that are present in the R.id.name


Also another question, in the code you write you write "final Button Buttonname=(Button) findViewById(R.id.buttonID);"

What does the "final" mean and do?

package xxxx.xxxx.hello;

import android.app.Activity;
import android.os.Bundle;

public class HelloAndroid extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstances) {
        super.onCreate(savedInstances);
        setContentView(R.layout.main);
    }
}

[segfault]

What does the "final" mean and do?

http://java.sun.com/docs/books/jls/t...es.html#4.12.4

similar meaning to "const"

I would take a shot at your first question too, but i can't guarantee it. I think you want to put that button code in your OnCreate function.