DialogFragmentを使って、汎用的に使えそうなAlertDialogをつくってみた

CommonDialogFragment

/**
 * Created by togu on 2013/07/25.
 */
public class CommonDialogFragment extends DialogFragment {
    private DialogListener listener = null;

    public static CommonDialogFragment newInstance(String title, String message) {
        return setCommonDialogFragment(0, title, message);
    }

    public static CommonDialogFragment newInstance(int iconId, String title, String message) {
        return setCommonDialogFragment(iconId, title, message);
    }

    private static CommonDialogFragment setCommonDialogFragment(int iconId, String title, String message) {
        CommonDialogFragment frag = new CommonDialogFragment();
        Bundle bundle = new Bundle();
        bundle.putInt("icon", iconId == 0 ? R.drawable.status_icon : iconId);
        bundle.putString("title", title);
        bundle.putString("message", message);
        frag.setArguments(bundle);
        return frag;
    }


    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        Bundle bundle = getArguments();
        int iconId = bundle.getInt("icon");
        String title = bundle.getString("title");
        String message = bundle.getString("message");

        return new AlertDialog.Builder(getActivity())
                .setIcon(iconId)
                .setTitle(title)
                .setMessage(message)
                .setPositiveButton(android.R.string.ok,
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int whichButton) {
                                listener.onPositiveClick(getDialogTag());
                            }
                        }
                )
                .setNegativeButton(android.R.string.cancel,
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int whichButton) {
                                listener.onNegativeClick(getDialogTag());
                            }
                        }
                )
                .create();
    }

    public String getDialogTag() {
        return getTag() != null ? getTag() : "";
    }

    /**
     * DialogListener
     *
     * @param listener
     */
    public void setDialogListener(DialogListener listener) {
        this.listener = listener;
    }

    /**
     * DialogListener
     */
    public void removeDialogListener() {
        this.listener = null;
    }
}

DialogListener

/**
 * Created by togu on 2013/07/25.
 */
public interface DialogListener extends EventListener {

    public void onPositiveClick(String tag);

    public void onNegativeClick(String tag);
}

MainActivity

public class MainActivity extends FragmentActivity implements OnClickListener, DialogListener {

    /*
        Alert Tag
        どこのボタンでアラートでたか分かるようにしたくて、ただ...逢いたくて
     */
    private static final String TAG_MISAKA_20001 = "sisters_misaka_20001_last_order";

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate();
        //適当、アラートを出したいボタンを定義とか
    }

    public void onResume() {
        super.onResume();
        //適当
    }

    public void onClick(View v) {
        switch (v.getId()) {
            //ボタンをタップした時にアラートを出す
            case R.id.hoge:
                CommonDialogFragment alertDialogFragment = CommonDialogFragment.newInstance(
                        "夏だし・・・・", //alert dialog title
                        "(　ﾟ∀ﾟ)o彡°おっぱい！おっぱい！"; //alert dialog message
                alertDialogFragment.setDialogListener(this);
                alertDialogFragment.show(getSupportFragmentManager(), TAG_MISAKA_20001);
                break;
        }
    }

    /**
     * DialogListener
     */
    @Override
    public void onPositiveClick(String tag) {
        if (TAG_MISAKA_20001.equals(tag)) {
            Toast.makeText(cxt, "okてことで", Toast.LENGTH_SHORT).show();
        }
    }

    /**
     * DialogListener
     */
    @Override
    public void onNegativeClick(String tag) {
        if (TAG_MISAKA_20001.equals(tag)) {
            Toast.makeText(cxt, "cancelしちゃうわ", Toast.LENGTH_SHORT).show();
        }
    }
}