<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.kale.seekbar.MainActivity" >    <!--  android:thumb="@drawable/ic_launcher" 设置滑块的图片 -->    <SeekBar        android:id="@+id/seekBar_id"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:max="100"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:thumb="@drawable/ic_launcher"        android:layout_marginTop="74dp" /></RelativeLayout>

package com.kale.seekbar;import android.os.Bundle;import android.support.v7.app.ActionBarActivity;import android.widget.SeekBar;import android.widget.Toast;import android.widget.SeekBar.OnSeekBarChangeListener;public class MainActivity extends ActionBarActivity {    SeekBar sBar;        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                sBar = (SeekBar)findViewById(R.id.seekBar_id);        sBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {            private int progress = 0;            @Override            public void onStopTrackingTouch(SeekBar arg0) {                System.out.println(progress);                Toast.makeText(getApplicationContext(),"当前进度 = "+progress, 0).show();            }                        @Override            public void onStartTrackingTouch(SeekBar arg0) {            }                        @Override            public void onProgressChanged(SeekBar arg0, int p, boolean arg2) {                progress = p;             }        });    }}