Android仿音乐播放器功能

本文实例为大家分享了android仿音乐播放器功能的具体代码，供大家参考，具体内容如下

读取本地音乐文件

源代码：

import android.media.mediaplayer;
import android.support.v7.app.appcompatactivity;
import android.os.bundle;
import android.view.view;
import android.widget.imagebutton;
import android.widget.seekbar;
import android.widget.textview;

public class mainactivity extends appcompatactivity {

  private mediaplayer mediaplayer;
  private seekbar seekbar;
  private textview tv_mian_stop;
  private textview tv_mian_start;
  private int musicaction;
  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_main);
    tv_mian_start = (textview) findviewbyid(r.id.tv_mian_start);
    tv_mian_stop = (textview) findviewbyid(r.id.tv_mian_stop);
    seekbar = (seekbar) findviewbyid(r.id.seekbar);


    //进度条的监听事件
    seekbar.setonseekbarchangelistener(new seekbar.onseekbarchangelistener() {
      @override
      public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser) {
          //改变
         //每当进度条发生改变时tv_mian_start的值发生变化
         //new timeutil().sectotime()一个外部类（时间格式转化）
         tv_mian_start.settext(new timeutil().sectotime(mediaplayer.getcurrentposition()/1000)+"");
      }
      @override
      public void onstarttrackingtouch(seekbar seekbar) {
          //开始
      }

      @override
      public void onstoptrackingtouch(seekbar seekbar) {
          //结束
          //获取拖动结束之后的位置
        int progrss=seekbar.getprogress();
        mediaplayer.seekto(progrss);
      }
    });
  }

  public void isplay(view view){
    imagebutton imagebutton= (imagebutton) view;
    if (mediaplayer==null){
      mediaplayer = mediaplayer.create(this, r.raw.seve);
      mediaplayer.start();
      //把图标修改为暂停的图标
      imagebutton.setimageresource(android.r.drawable.ic_media_pause);
      //获取音乐的总时长
      int muiscsum=mediaplayer.getduration();
      //设置进度条的最大值为总时长
       seekbar.setmax(muiscsum);

       //执行一个多线程的耗时操作
       new mythread().start();

       tv_mian_stop.settext(new timeutil().sectotime(muiscsum/1000)+"");
    }else if (mediaplayer.isplaying()){
      mediaplayer.pause();
      imagebutton.setimageresource(android.r.drawable.ic_media_play);
    }else{
      mediaplayer.start();
      imagebutton.setimageresource(android.r.drawable.ic_media_pause);
    }
  }


  class mythread extends thread{
    @override
    public void run() {
      super.run();
      //当进度条的当前值小于最大值时进度条发生改变
      while(seekbar.getprogress()<=seekbar.getmax()){

      //获取当前音乐播放的位置
      musicaction = mediaplayer.getcurrentposition();
      //让进度条动起来
     seekbar.setprogress(musicaction);

      }

    }
  }


}

时间格式转化类：

public class timeutil {

  public static string sectotime(int time) {
    string timestr = null;
    int hour = 0;
    int minute = 0;
    int second = 0;
    if (time <= 0)
      return "00:00";
    else {
      minute = time / 60;
      if (minute < 60) {
        second = time % 60;
        timestr = unitformat(minute) + ":" + unitformat(second);
      } else {
        hour = minute / 60;
        if (hour > 99)
          return "99:59:59";
        minute = minute % 60;
        second = time - hour * 3600 - minute * 60;
        timestr = unitformat(hour) + ":" + unitformat(minute) + ":" + unitformat(second);
      }
    }
    return timestr;
  }

  private static string unitformat(int i) {
    string retstr = null;
    if (i >= 0 && i < 10)
      retstr = "0" + integer.tostring(i);
    else
      retstr = "" + i;
    return retstr;
  }

} 

真机效果图：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。