<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent">

    <ScrollView

        android:id="@+id/sc"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:fillViewport="true">

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="vertical">

            <ImageView

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:src="@drawable/ad1" />

            <ImageView

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:layout_margin="10dp"

                android:src="@drawable/ad2" />

        </LinearLayout>

    </ScrollView>

    <ImageView

        android:id="@+id/btn_toTop"

        android:layout_width="25dp"

        android:layout_height="25dp"

        android:layout_gravity="bottom|right"

        android:background="@drawable/top" />

    <ImageView

        android:id="@+id/btn_toBottom"

        android:layout_width="25dp"

        android:layout_height="25dp"

        android:background="@drawable/bottom" />

</FrameLayout>

package com.jabony.fastscrolltop;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ImageView;

import android.widget.ScrollView;

public class MainActivity extends Activity {

   private ImageView topBtn, bottomBtn;

   private ScrollView sc;

   @Override

   protected void onCreate(Bundle savedInstanceState) {

      super.onCreate(savedInstanceState);

      setContentView(R.layout.main);

      sc = (ScrollView) findViewById(R.id.sc);

      topBtn = (ImageView) findViewById(R.id.btn_toTop);

      bottomBtn = (ImageView) findViewById(R.id.btn_toBottom);

      topBtn.setOnClickListener(new OnClickListener() {

         @Override

         public void onClick(View v) {

            sc.post(new Runnable() {

               @Override

               public void run() {

                  sc.post(new Runnable() {

                     public void run() {

                        // 滚动至顶部

                        sc.fullScroll(ScrollView.FOCUS_UP);

                     }

                  });

               }

            });

         }

      });

      bottomBtn.setOnClickListener(new OnClickListener() {

         @Override

         public void onClick(View v) {

            sc.post(new Runnable() {

               @Override

               public void run() {

                  sc.post(new Runnable() {

                     public void run() {

                        // 滚动到底部

                        sc.fullScroll(ScrollView.FOCUS_DOWN);

                     }

                  });

               }

            });

         }

      });

   }

}