package com.org.scroll; 
 
import android.content.Context; 
import android.graphics.Rect; 
import android.util.AttributeSet; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.animation.TranslateAnimation; 
import android.widget.ScrollView; 
 
/** 
 * ScrollView反彈效果的實(shí)現(xiàn) 
 */ 
public class BounceScrollView extends ScrollView { 
 private View inner;// 孩子View 
 
 private float y;// 點(diǎn)擊時(shí)y坐標(biāo) 
 // 矩形(這里只是個(gè)形式，只是用于判斷是否需要?jiǎng)赢?) 
 private Rect normal = new Rect(); 
 
 private boolean isCount = false;// 是否開始計(jì)算 
 
 public BounceScrollView(Context context, AttributeSet attrs) { 
 super(context, attrs); 
 } 
 
 /*** 
 * 根據(jù) XML 生成視圖工作完成.該函數(shù)在生成視圖的最后調(diào)用，在所有子視圖添加完之后. 即使子類覆蓋了 onFinishInflate 
 * 方法，也應(yīng)該調(diào)用父類的方法，使該方法得以執(zhí)行. 
 */ 
 @Override 
 protected void onFinishInflate() { 
 if (getChildCount() > 0) { 
  inner = getChildAt(0); 
 } 
 } 
 
 /*** 
 * 監(jiān)聽touch 
 */ 
 @Override 
 public boolean onTouchEvent(MotionEvent ev) { 
 if (inner != null) { 
  commOnTouchEvent(ev); 
 } 
 
 return super.onTouchEvent(ev); 
 } 
 
 /*** 
 * 觸摸事件 
 * 
 * @param ev 
 */ 
 public void commOnTouchEvent(MotionEvent ev) { 
 int action = ev.getAction(); 
 switch (action) { 
 case MotionEvent.ACTION_DOWN: 
  break; 
 case MotionEvent.ACTION_UP: 
  // 手指松開. 
  if (isNeedAnimation()) { 
  animation(); 
  isCount = false; 
  } 
  break; 
 /*** 
  * 排除出第一次移動(dòng)計(jì)算，因?yàn)榈谝淮螣o法得知y坐標(biāo)， 在MotionEvent.ACTION_DOWN中獲取不到， 
  * 因?yàn)榇藭r(shí)是MyScrollView的touch事件傳遞到到了LIstView的孩子item上面.所以從第二次計(jì)算開始. 
  * 然而我們也要進(jìn)行初始化，就是第一次移動(dòng)的時(shí)候讓滑動(dòng)距離歸0. 之后記錄準(zhǔn)確了就正常執(zhí)行. 
  */ 
 case MotionEvent.ACTION_MOVE: 
  final float preY = y;// 按下時(shí)的y坐標(biāo) 
  float nowY = ev.getY();// 時(shí)時(shí)y坐標(biāo) 
  int deltaY = (int) (preY - nowY);// 滑動(dòng)距離 
  if (!isCount) { 
  deltaY = 0; // 在這里要?dú)w0. 
  } 
 
  y = nowY; 
  // 當(dāng)滾動(dòng)到最上或者最下時(shí)就不會(huì)再滾動(dòng)，這時(shí)移動(dòng)布局 
  if (isNeedMove()) { 
  // 初始化頭部矩形 
  if (normal.isEmpty()) { 
   // 保存正常的布局位置 
   normal.set(inner.getLeft(), inner.getTop(), 
    inner.getRight(), inner.getBottom()); 
  } 
//  Log.e("jj", "矩形：" + inner.getLeft() + "," + inner.getTop() 
//   + "," + inner.getRight() + "," + inner.getBottom()); 
  // 移動(dòng)布局 
  inner.layout(inner.getLeft(), inner.getTop() - deltaY / 2, 
   inner.getRight(), inner.getBottom() - deltaY / 2); 
  } 
  isCount = true; 
  break; 
 
 default: 
  break; 
 } 
 } 
 
 /*** 
 * 回縮動(dòng)畫 
 */ 
 public void animation() { 
 // 開啟移動(dòng)動(dòng)畫 
 TranslateAnimation ta = new TranslateAnimation(0, 0, inner.getTop(), 
  normal.top); 
 ta.setDuration(200); 
 inner.startAnimation(ta); 
 // 設(shè)置回到正常的布局位置 
 inner.layout(normal.left, normal.top, normal.right, normal.bottom); 
 
// Log.e("jj", "回歸：" + normal.left + "," + normal.top + "," + normal.right 
//  + "," + normal.bottom); 
 
 normal.setEmpty(); 
 
 } 
 
 // 是否需要開啟動(dòng)畫 
 public boolean isNeedAnimation() { 
 return !normal.isEmpty(); 
 } 
 
 /*** 
 * 是否需要移動(dòng)布局 inner.getMeasuredHeight():獲取的是控件的總高度 
 * 
 * getHeight()：獲取的是屏幕的高度 
 * 
 * @return 
 */ 
 public boolean isNeedMove() { 
 int offset = inner.getMeasuredHeight() - getHeight(); 
 int scrollY = getScrollY(); 
// Log.e("jj", "scrolly=" + scrollY); 
 // 0是頂部，后面那個(gè)是底部 
 if (scrollY == 0 || scrollY == offset) { 
  return true; 
 } 
 return false; 
 } 
 
} 

package com.org.activity; 
 
import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.Window; 
 
public class MainActivity extends Activity { 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 requestWindowFeature(Window.FEATURE_NO_TITLE); 
 setContentView(R.layout.activity_main); 
 } 
 
 @Override 
 public boolean onCreateOptionsMenu(Menu menu) { 
 // Inflate the menu; this adds items to the action bar if it is present. 
 getMenuInflater().inflate(R.menu.activity_main, menu); 
 return true; 
 } 
 
} 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 xmlns:tools="http://schemas.android.com/tools" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:orientation="vertical" > 
 
 <include layout="@layout/common_title_bg" /> 
 
 <com.org.scroll.BounceScrollView 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:background="@drawable/coversation_bg" 
 android:focusable="true" 
 android:focusableInTouchMode="true" > 
 
 <LinearLayout 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:orientation="vertical" 
  android:paddingTop="10.0dip" > 
 
  <RelativeLayout 
  android:id="@+id/accountSetting" 
  android:layout_width="fill_parent" 
  android:layout_height="63.0dip" 
  android:background="#80ffffff" 
  android:focusable="true" > 
 
  <FrameLayout 
   android:id="@+id/frameLayout1" 
   android:layout_width="54.0dip" 
   android:layout_height="54.0dip" 
   android:layout_centerVertical="true" 
   android:layout_marginLeft="10.0dip" > 
 
   <ImageView 
   android:id="@+id/face" 
   android:layout_width="50.0dip" 
   android:layout_height="50.0dip" 
   android:layout_gravity="center" 
   android:contentDescription="@null" 
   android:src="@drawable/h0" /> 
 
   <ImageView 
   android:id="@+id/statusIcon" 
   android:layout_width="18.0dip" 
   android:layout_height="18.0dip" 
   android:layout_gravity="bottom|right|center" 
   android:contentDescription="@null" /> 
  </FrameLayout> 
 
  <ImageView 
   android:id="@+id/imageView1" 
   android:layout_width="wrap_content" 
   android:layout_height="wrap_content" 
   android:layout_alignParentRight="true" 
   android:layout_centerVertical="true" 
   android:layout_marginRight="10.0dip" 
   android:contentDescription="@null" 
   android:duplicateParentState="true" /> 
 
  <TextView 
   android:id="@+id/status" 
   android:layout_width="wrap_content" 
   android:layout_height="wrap_content" 
   android:layout_alignBottom="@+id/nick" 
   android:layout_marginRight="10.0dip" 
   android:layout_toLeftOf="@id/imageView1" 
   android:duplicateParentState="true" 
   android:text="在線" /> 
 
  <TextView 
   android:id="@+id/nick" 
   android:layout_width="wrap_content" 
   android:layout_height="wrap_content" 
   android:layout_centerVertical="true" 
   android:layout_marginLeft="10.0dip" 
   android:layout_marginRight="69.0dip" 
   android:layout_toRightOf="@id/frameLayout1" 
   android:duplicateParentState="true" 
   android:ellipsize="end" 
   android:singleLine="true" /> 
  </RelativeLayout> 
 
  <LinearLayout 
  android:layout_width="match_parent" 
  android:layout_height="600dp" 
  android:layout_marginTop="16.0dip" 
  android:layout_weight="2.13" 
  android:background="#ffffffff" 
  android:orientation="vertical" > 
 
  <TextView 
   android:id="@+id/my_profile" 
   android:layout_width="fill_parent" 
   android:layout_height="44.0dip" 
   android:background="#800000ff" 
   android:clickable="true" 
   android:gravity="center_vertical" 
   android:paddingLeft="10.0dip" 
   android:paddingRight="10.0dip" 
   android:text="標(biāo)題一" /> 
 
  <LinearLayout 
   android:layout_width="fill_parent" 
   android:layout_height="wrap_content" 
   android:layout_marginTop="16.0dip" 
   android:orientation="vertical" > 
 
   <RelativeLayout 
   android:id="@+id/set_feedback" 
   android:layout_width="fill_parent" 
   android:layout_height="44.0dip" 
   android:background="#8000ffff" 
   android:clickable="true" 
   android:focusable="true" > 
 
   <TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_centerVertical="true" 
    android:layout_marginLeft="12.0dip" 
    android:duplicateParentState="true" 
    android:gravity="center_vertical" 
    android:text="反饋" /> 
   </RelativeLayout> 
  </LinearLayout> 
  </LinearLayout> 
 </LinearLayout> 
 </com.org.scroll.BounceScrollView> 
 
</LinearLayout>