Question

I have two button b1 and b2 .If button b1 is pressed then perform a query q1 else if button b2 is pressed then perform an another query q2.

if(b1_click)
{
  mCursor=//query
}
else if(b2_click)
{
  mCursor=//query
}

Please tell me how can i implement this.How to implement b1_click method or any inbuilt method which tell that button is pressed.I tried

Cursor c;
c=//querys

    if(b1.isPressed())
    {
        next.setOnClickListener
        (
            new View.OnClickListener()
            {
                @Override public void onClick(View v) {
                    c=db.getData1(); (getData1 method return cursor)
                }
            }
        );
    } 
   tv.append(c.getString(column_number) (tv=TextView)

   "Same as above for b2"

It is saying that cursor (c) should be final
Help?

Answer 1

First of all I would recommend going through some tutorials Hello Android and you could also follow the code and samples in Common Tasks and How to do them in Android.

If you would read this carefully you would know that is very simple, something like this:

public class MyActiviy extends Activity implements OnClickListener{

     protected void onCreate(Bundle savedInstance){
          super.onCreate(savedInstance);
          setContentView(R.layout.myLayout);
          findViewById(R.id.Button1).setOnClickListener(this);
          findViewById(R.id.Button2).setOnClickListener(this);
          //more code...
     }

     public void onClick(View v){
          switch(v.getId()){
              case R.id.Button1:
                  //Button1 pressedd...do stuff
                  break;
              case R.id.Button2:
                  //Button2 pressed...do some other stuff
                  break;
              default:
                  break;
          }
     }
}