setBackgroundResourc из соседнего класса

public static String s = null;

RelativeLayout wv = (RelativeLayout)findViewById(R.id.RelativeLayout1);
        wv.setBackgroundResource(s);

public class MyNewClass extends Activity {
 
    Button btn;
//====================================================================================    
    MyClass(Button btn){        
        this.btn = btn; 
    }
    
//====================================================================================  
    public int setBackground(){
            btn.setBackgroundResource(R.drawable.gray);
    }
}
//====================================================================================

public class FirstActivity extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
        final Animation animationFadein = AnimationUtils.loadAnimation(this, R.anim.fade_in);       
        final ImageView aa = (ImageView) findViewById(R.id.imageView1);
        aa.setOnClickListener(new OnClickListener() {
             
            public void onClick(View v) {
                // TODO Auto-generated method stub
                WView.s = "file:///more.html";
\\ На этом этапе я хочу установить в activity_second background1
                aa.startAnimation(animationFadein);
                Intent int1 = new Intent(FirstActivity.this, Second.class);
                startActivity(int1);
            }
        });
        final ImageView ab = (ImageView) findViewById(R.id.imageView2);
        ab.setOnClickListener(new OnClickListener() {
             
            public void onClick(View v) {
                // TODO Auto-generated method stub
                WView.s = "file:///android_asset/psichology/women.html";
\\ На этом этапе я хочу установить в activity_second background2
                ab.startAnimation(animationFadein);
                Intent int1 = new Intent(FirstActivity.this, Second.class);
                startActivity(int1);
            }
        });

Intent int1 = new Intent(FirstActivity.this, Second.class);

public static String s = null;
RelativeLayout wv = (RelativeLayout)findViewById(R.id.RelativeLayout1);
        wv.setBackgroundResource(s);

public static String s = null;
RelativeLayout wv = (RelativeLayout)findViewById(R.id.RelativeLayout1);
        wv.setBackgroundResource(s);

package ua.com.test;
 
public class BlackBox {
    static String homeDir;
}

public class Second extends Activity {
    public static String s = null;
...............................................
WebView my = (WebView)findViewById(R.id.webView1);
        my.loadUrl(s);
        my.setBackgroundColor(0x00000000);

public void onClick(View v) {
                // TODO Auto-generated method stub
                Second.s = "file:///android_asset/first.html";

public static String s = null;
public static String d = null;
    
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
        WebView my = (WebView)findViewById(R.id.webView1);
        my.loadUrl(s);
        my.setBackgroundColor(0x00000000);
        RelativeLayout wv = (RelativeLayout)findViewById(R.id.RelativeLayout1);
        wv.setBackgroundResource(d);
    }

Second.d = "R.drawable.view"

Intent intent = new Intent(this, DisplayMessageActivity.class);

public static int d = (Integer) null;
..
RelativeLayout wv = (RelativeLayout)findViewById(R.id.RelativeLayout1);
        wv.setBackgroundResource(d);

public void onClick(View v) {
                // TODO Auto-generated method stub
                WView.s = "file:///android_asset/first.html";
                WView.d = R.drawable.view;

public static int d = null;

public static int d = R.drawable.view;

WView.d = R.drawable.<нужный drawable>;