<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"

    tools:context="com.example.android_seekbar.MainActivity"

    android:orientation="vertical" >

    <SeekBar

        android:id="@+id/SeekBar01"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

           android:max="100"

           android:thumb="@drawable/mythumb"

        android:progress="50"/>

    <TextView

        android:id="@+id/text01"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

     />

     <TextView

        android:id="@+id/text02"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

     />

</LinearLayout>

package com.example.android_seekbar;

import android.app.Activity;

import android.os.Bundle;

import android.widget.SeekBar;

import android.widget.SeekBar.OnSeekBarChangeListener;

import android.widget.TextView;

/**

 * SeekBar:滚动条

 *         与ProgressBar的区别在与：拖动条允许用户拖动滑块来改变进度条的大小

 *

 *SeekBar 的主要属性个方法

 *        SetMax—设置SeekBar的最大数值

 *        setProgress—设置SeekBar当前的数值

 *        setSecondaryProgress—设置SeekBar的第二数值，即当前拖动条推荐的数值

 *

 *SeekBar的事件

 *        实现接口：SeekBar.OnSeekBarChangeListerer

 *        数值改变：onProgressChanged

 *        开始拖动：onStartTrackingTouch

 *        停止拖动：onStopTrackingTouch

 *

 * 自定义进度条：

 * android:progressDrawable="@drawable/seekBar.img"(改变进度条的样式)

 * android:thumb="@drawable/thumb"(改变滑块的样式)

 *

 * @author Administrator

 */

public class MainActivity extends Activity implements OnSeekBarChangeListener{

    private SeekBar seekBar;

    private TextView tv1;

    private TextView tv2;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        seekBar = (SeekBar) findViewById(R.id.SeekBar01);

        tv1 = (TextView) findViewById(R.id.text01);

        tv2 = (TextView) findViewById(R.id.text02);

        seekBar.setOnSeekBarChangeListener(this);

    }

    @Override

    public void onProgressChanged(SeekBar seekBar, int progress,

            boolean fromUser) {

        // TODO Auto-generated method stub

        tv1.setText("正在拖动");

        tv2.setText("进度："+progress);

    }

    @Override

    public void onStartTrackingTouch(SeekBar seekBar) {

        // TODO Auto-generated method stub

        tv1.setText("开始拖动");

    }

    @Override

    public void onStopTrackingTouch(SeekBar seekBar) {

        // TODO Auto-generated method stub

        tv1.setText("结束拖动");

    }

}