SeekBar

activity_mian.xml 部分

<SeekBar
        android:thumb="@drawable/seek"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/seekBar"
        android:max="100"
        android:progress="50"/>

seek.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="true"
          android:state_window_focused="true"
          android:drawable="@drawable/select" />

    <item android:state_focused="true"
          android:state_window_focused="true"
          android:drawable="@drawable/select" />

    <item android:state_selected="true"
          android:state_window_focused="true"
          android:drawable="@drawable/select" />

    <item android:drawable="@drawable/normal" />

</selector>

package com.example.administrator.seekbar;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.SeekBar;
import android.widget.TextView;


public class MainActivity extends ActionBarActivity {
    private SeekBar seekBar;
    private TextView text1;
    private TextView text2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        seekBar = (SeekBar)findViewById(R.id.seekBar);
        text1 = (TextView)findViewById(R.id.text1);
        text2 = (TextView)findViewById(R.id.text2);

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                text1.setText("正在拖動");
                text2.setText("當前數值："+progress);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                text1.setText("開始拖動");
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                text1.setText("停止拖動");
            }
        });
    }
}