Android -- 简单的图片浏览器

public class MainActivity extends Activity {

    int[] images = new int[] { R.drawable.pic, R.drawable.pic2,
            R.drawable.pic3, R.drawable.pic4, R.drawable.pic5 };
    int currentImg = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        LinearLayout main =(LinearLayout) findViewById(R.id.root);
        final ImageView image = new ImageView(this);
        main.addView(image);
        
        image.setImageResource(images[0]);
        image.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
                image.setImageResource(images[++currentImg % images.length]);
            }
        });
        
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}