03 SeekBar 音频播放拖拽进度条

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八, SeekBar 音频播放拖拽进度条
   >

        android:progress="40"   第一进度
        android:secondaryProgress="50" 第二进度
   >使用: setOnSeekBarChangeListener

<span style="font-size:18px;">package com.fmy.a;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.SeekBar;import android.widget.SeekBar.OnSeekBarChangeListener;import android.widget.Toast;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.demo_textview);SeekBar sb = (SeekBar) findViewById(R.id.sb);//用户点击不会触发此回调接口sb.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Toast.makeText(MainActivity.this, "嘿嘿", 0).show();}});sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {//停止拖动音频条@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stubSystem.out.println("停止拖动");}//开发拖动音频条@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stubSystem.out.println("开始拖动音频条");}//音频条改变  fromUser是否是用户改变的状态  progress 当前进度@Overridepublic void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {// TODO Auto-generated method stubSystem.out.println("音频条改变"+fromUser);}});}}</span>

<span style="font-size:18px;"><span style="display: none; width: 0px; height: 0px;" id="transmark"></span><?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" >    <!--         android:progress="100"  设当前进度     android:max="100"        最大进度           >缺省为100android:secondaryProgress="40"   第二进度条位置     --><SeekBar     android:id="@+id/sb"    android:layout_width="match_parent"    android:layout_height="wrap_content"android:max="100"android:progress="10" android:secondaryProgress="40"       /></LinearLayout></span>

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