Android SeekBar进度条

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

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

    <TextView
        android:id="@+id/tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/tv2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

my_thumb.xml

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

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

</selector>

MainActivity.java

package com.imooc.android_seekbar;

import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.os.Build;

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.main);
        seekBar=(SeekBar) findViewById(R.id.seekBar);
        tv1=(TextView) findViewById(R.id.tv1);
        tv2=(TextView) findViewById(R.id.tv2);
        seekBar.setOnSeekBarChangeListener(this);
        
    
    }
    
    //数值改变
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress,
            boolean fromUser) {
        // TODO Auto-generated method stub
        tv1.setText("正在拖动");
        tv2.setText("当前数值："+progress);
    }
    
    //开始拖动
    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        // TODO Auto-generated method stub
        tv1.setText("开始拖动");
    }
    
    //停止拖动
    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        // TODO Auto-generated method stub
        tv1.setText("停止拖动");
    }


}

演示效果：

seekbar.gif