Android button monitoring methods

------------------- First, all buttons are listened.
Package gongzibai. co. cc;

Import android. app. Activity;
Import android. OS. Bundle;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;
Import android. widget. TextView;
Import android. widget. Toast;

Public class RE1Activity extends Activity implements

OnClickListener {

/** Called when the activity is first created .*/
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
Button mButton = (Button) findViewById

(R. id. button1 );
Button mButton2 = (Button) findViewById

(R. id. button2 );
TextView mTextView = (TextView) findViewById

(R. id. textView1 );
MButton. setOnClickListener (this );
MButton2.setOnClickListener (this );

}

@ Override
Public void onClick (View v ){
// TODO Auto-generated method stub
Toast. makeText (RE1Activity. this, "1000 ",

2000). show ();

}

}

---------------- Internal listener
Public class AnonymousListener extends Activity
{
EditText show;
Button bn;
@ Override
Public void onCreate (Bundle savedInstanceState)
{
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
Show = (EditText) findViewById (R. id. show );
Bn = (Button) findViewById (R. id. bn );
// Directly use Activity as the event listener
Bn. setOnClickListener (new OnClickListener ()
{
// Implement the event processing method www.2cto.com
@ Override
Public void onClick (View v)
{
// TODO Auto-generated method

Stub
Show. setText ("bn button clicked! ");
}
});
}
}

----------- Rely on XML
<Button
Android: id = "@ + id/button5"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"
Android: onClick = "button5"
Android: text = "Button"/>

Public void button5 (View v)
{
 
Toast. makeText (RE1Activity. this, "button5 ",

2000). show ();
}

------------- External listener
MButton4.setOnClickListener (LOVEYOU);} created outside brackets

OnClickListener LOVEYOU = new Button. OnClickListener (){

@ Override
Public void onClick (View v ){
// TODO Auto-generated method stub
Toast. makeText (RE1Activity. this, "50000 ",

2000). show ();

}

};

 

 

--------------------- Listener Method

OnClickListener LOVEYOU;

 
 

LOVEYOU = new Button. OnClickListener (){

@ Override
Public void onClick (View v ){
// TODO Auto-generated method stub
Toast. makeText (RE1Activity. this, "50000", 2000). show ();

}
};
MButton4.setOnClickListener (LOVEYOU );

 

 

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