public class ParallaListView extends ListView {
  private static final String TAG = "tag";
  public ParallaListView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
  }
  public ParallaListView(Context context, AttributeSet attrs) {
    this(context, attrs, 0);
  }
  public ParallaListView(Context context) {
    this(context, null);
  }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
  <com.android.imooc.paralla.ParallaListView
    android:id="@+id/lv_paralla"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
  </com.android.imooc.paralla.ParallaListView>
</LinearLayout>

public class ParallaActivity extends Activity {
  private ParallaListView mListView;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_paralla);
    initViews();
  }
  private void initViews() {
    mListView = (ParallaListView) findViewById(R.id.lv_paralla);
    mListView.setAdapter(new ArrayAdapter<String>(ParallaActivity.this, android.R.layout.simple_list_item_1, Cheeses.NAMES));
  }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
  <ImageView
    android:id="@+id/iv_header"
    android:scaleType="centerCrop"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/parallax_img" />
</LinearLayout>

View mHeader = LayoutInflater.from(this).inflate(R.layout.view_paralla_header, null);
mListView = (ParallaListView) findViewById(R.id.lv_paralla);
mListView.addHeaderView(mHeader);

@Override
protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX,
  int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {
    Logger.i(TAG, "deltaY="+deltaY + " scrollX="+scrollX+ " scrollRangeY="+scrollRangeY + " maxOverScrollY=" +maxOverScrollY + " isTouchEvent=" +isTouchEvent);
    return super.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX, scrollRangeY, maxOverScrollX, maxOverScrollY,
        isTouchEvent);
}

ImageView iv = (ImageView) findViewById(R.id.iv_head);
mListView.setParallaImage(iv);

public void setParallaImage(ImageView iv) {
    mImageView = iv;
    //在这个方法里获得高度
    int height = iv.getHeight();
    int measureHeight = iv.getMeasuredHeight();
    int instrinsicHeight = iv.getDrawable().getIntrinsicHeight();
    Logger.i(TAG, "height="+height + " measureHeight="+measureHeight+ " instrinsicHeight="+instrinsicHeight );
}

iv.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
  @Override
  public void onGlobalLayout() {
    //当布局填充完成后，此方法会被调用
    mListView.setParallaImage(iv);
    //移除监听
    iv.getViewTreeObserver().removeGlobalOnLayoutListener(this);
  }
});

if (isTouchEvent && deltaY < 0) {
  mHeight += Math.abs(deltaY);
  if (mHeight <= mBitmapHeight) {
    mImageView.getLayoutParams().height = mHeight;
    mImageView.requestLayout();
  }
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
    switch (ev.getAction()) {
    case MotionEvent.ACTION_UP:
      final int startHeight = mImageView.getHeight();
      final int endHeight = mBitmapHeight;
      //值动画
      //valueAnim(startHeight, endHeight);
      //竖直移动动画
      ResetAnimation anim = new ResetAnimation(mImageView, startHeight, endHeight);
      anim.setInterpolator(new OvershootInterpolator());
      startAnimation(anim);
      break;
    default:
      break;
    }
    return super.onTouchEvent(ev);
}

/**
 * @描述     使用平移动画实现下拉图片后弹射回去
 * @项目名称   App_imooc
 * @包名     com.android.imooc.paralla
 * @类名     ResetAnimation
 * @author   chenlin
 * @date    2016年5月29日 下午12:27:00
 * @version   1.0
 */
public class ResetAnimation extends Animation {
  private ImageView mImageView;
  private int mStartHeight;
  private int mEndHeight;
  public ResetAnimation(ImageView imageView, int startHeight, int endHeight) {
    this.mImageView = imageView;
    this.mStartHeight = startHeight;
    this.mEndHeight = endHeight;
    setDuration(500);
  }
  @Override
  protected void applyTransformation(float interpolatedTime, Transformation t) {
    int newHeight = (int) (ValueUtil.evalute(interpolatedTime, mStartHeight, mEndHeight) + 0.5f);
    mImageView.getLayoutParams().height = newHeight;
    mImageView.requestLayout();
    super.applyTransformation(interpolatedTime, t);
  }
}