import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.TextView;

public final class MultiRes extends Activity {

    private int mCurrentPhotoIndex = 0;

    private int[] mPhotoIds = new int[] { R.drawable.sample_0,

            R.drawable.sample_1, R.drawable.sample_2, R.drawable.sample_3,

            R.drawable.sample_4, R.drawable.sample_5, R.drawable.sample_6,

            R.drawable.sample_7 };

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        showPhoto(mCurrentPhotoIndex);

        // Handle clicks on the 'Next' button.

        Button nextButton = (Button) findViewById(R.id.next_button);

        nextButton.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                mCurrentPhotoIndex = (mCurrentPhotoIndex + 1)

                        % mPhotoIds.length;

                showPhoto(mCurrentPhotoIndex);

            }

        });

    }

    @Override

    protected void onSaveInstanceState(Bundle outState) {

        outState.putInt("photo_index", mCurrentPhotoIndex);

        super.onSaveInstanceState(outState);

    }

    @Override

    protected void onRestoreInstanceState(Bundle savedInstanceState) {

        mCurrentPhotoIndex = savedInstanceState.getInt("photo_index");

        showPhoto(mCurrentPhotoIndex);

        super.onRestoreInstanceState(savedInstanceState);

    }

    private void showPhoto(int photoIndex) {

        ImageView imageView = (ImageView) findViewById(R.id.image_view);

        imageView.setImageResource(mPhotoIds[photoIndex]);

        TextView statusText = (TextView) findViewById(R.id.status_text);

        statusText.setText(String.format("%d/%d", photoIndex + 1,

                mPhotoIds.length));

    }

}