Android Compatibility packageで2.x系でもマルチサイズ対応

Display display = wm.getDefaultDisplay();
int width = display.getWidth();
 
if (width < 800) {
    setContentView(R.layout.bookmark);
} else {
    BookmarkFragment.withFragment = true;
    setContentView(R.layout.main);
}

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    Log.d(TAG, "onListItemClick");
    if (withFragment) {
        if (position == 0) {
            getFragmentManager().popBackStack();
        } else {
            String url = BOOKMARKS[position][1];
            WebFragment web = new WebFragment(url);
            FragmentTransaction ft = getFragmentManager().beginTransaction();
            ft.replace(R.id.fragment2, web);
            ft.addToBackStack(null);
            ft.commit();
        }
    } else {
        if (position == 0) {
            getActivity().finish();
        } else {
            Intent intent = new Intent(getActivity(), WebActivity.class);
            intent.putExtra("url", BOOKMARKS[position][1]);
            getActivity().startActivity(intent);
        }
    }
}

package com.example.android.fragment;
 
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.Window;
 
public class WebActivity extends FragmentActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
 
        setContentView(R.layout.web);
        String url = getIntent().getStringExtra("url");
        WebFragment wf = (WebFragment)getSupportFragmentManager().findFragmentById(R.id.fragment2);
        wf.getWebView().loadUrl(url);
    }
}