/**
 * @描述 TODO
 * @项目名称 App_imooc
 * @包名 com.android.imooc.imagescale
 * @类名 ScaleActivity
 * @author chenlin
 * @date 2013年6月10日 下午10:17:16
 * @version 1.0
 */

public class ScaleActivity extends Activity {
    // private ScaleView mScaleView;
    private ViewPager mPager;
    private ScalePagerAdapter mAdapter;

    private int resIds[] = new int[] { R.drawable.pic_1, R.drawable.pic_2, R.drawable.pic_3, R.drawable.pic_4,
            R.drawable.pic_5, R.drawable.pic_6 };
    private ScaleView[] mScaleViews;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_scale);
        // mScaleView = (ScaleView) findViewById(R.id.scaleView);
        // mScaleView.setImageResource(R.drawable.pic_1);
        mScaleViews = new ScaleView[resIds.length];
//      for (int i = 0; i < resIds.length; i++) {
//          mScaleViews[i] = new ScaleView(this);
//          mScaleViews[i].setImageResource(resIds[i]);
//      }

        mPager = (ViewPager) findViewById(R.id.viewPager);
        mAdapter = new ScalePagerAdapter();
        mPager.setAdapter(mAdapter);

    }

    private class ScalePagerAdapter extends PagerAdapter {

        @Override
        public int getCount() {
            return resIds.length;
        }

        @Override
        public boolean isViewFromObject(View arg0, Object arg1) {
            return arg0 == arg1;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
//          if (object instanceof ScaleView) {
//              ScaleView scaleView = (ScaleView) object;
//              container.removeView(scaleView);
//          }
            container.removeView(mScaleViews[position]);
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {

            ScaleView scaleView = new ScaleView(getApplicationContext());
            scaleView.setImageResource(resIds[position]);
            mScaleViews[position] = scaleView;
            container.addView(scaleView);
            return scaleView;
        }

    }
}