如何播放和停止MP3文件在一个Android应用程序

本文介绍了如何播放和停止MP3文件在一个Android应用程序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我已经创建了Eclipse的一个应用程序来播放和停止MP3文件。一切的一切都正常，只是，当我播放的音频文件，并阻止它，我想重播，剧中BTN不麦汁！我想知道是否有人能帮助我吗？提前致谢。 这里谈到的code：

包ir.polyglotcenter.childrenmostfrequentwords; 进口android.app.Activity; 进口android.media.MediaPlayer; 进口android.os.Bundle; 进口android.view.View; 进口android.view.View.OnClickListener; 进口android.widget.Button; 公共类主要扩展活动{ / **第一次创建活动时调用。 * / @覆盖 公共无效的onCreate（包savedInstanceState）{     super.onCreate（savedInstanceState）;     的setContentView（R.layout.main）;     //相关的媒体播放器     最后的MediaPlayer myMediaPlayer = MediaPlayer.create（Main.this，R.raw.audio）;     //按钮相关的播放BTN     按钮myButtonOne =（按钮）findViewById（R.id.btn_audio）;     myButtonOne.setOnClickListener（新OnClickListener（）{         @覆盖         公共无效的onClick（视图v）{             myMediaPlayer.start（）;         }     }）;     //按钮与停止BTN     按钮myButtonTwo =（按钮）findViewById（R.id.btn_stop）;     myButtonTwo.setOnClickListener（新OnClickListener（）{         @覆盖         公共无效的onClick（视图v）{             myMediaPlayer.stop（）;         }     }）; } }

解决方案

如果你想启动按钮/停止发声点击然后用 MediaPlayer.start（）和 MediaPlayer.pause（）暂停正在播放的声音，开始按钮点击重新开始。并覆盖活动的onPause 终于停下来，免费的MediaPlayer。作出改变你的code：

的onStop按钮点击：

myButtonTwo.setOnClickListener（新OnClickListener（）{         @覆盖         公共无效的onClick（视图v）{             myMediaPlayer.pause（）; //＆GT;＆GT;暂停当前的声音             myMediaPlayer.seekTo（0）; //＆GT;＆GT;寻求再次启动它         }     }）;

和覆盖的onPause活动的方式：

@覆盖    保护无效的onPause {       super.onPause（）;        myMediaPlayer.stop（）; //＆GT;＆GT;＆GT;停止myMediaPlayer        myMediaPlayer.release（）; //＆GT;＆GT;＆GT;免费myMediaPlayer      }

I have created an app in eclipse to play and stop an mp3 file. Everything is just fine except that when I play the audio file and stop it and I want to replay it, the play btn does not wort! I was wondering if anybody can help me? Thanks in advance. Here comes the code:

package ir.polyglotcenter.childrenmostfrequentwords; import android.app.Activity; import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class Main extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //Related to the media player final MediaPlayer myMediaPlayer = MediaPlayer.create(Main.this, R.raw.audio); //Button related to play btn Button myButtonOne = (Button) findViewById(R.id.btn_audio); myButtonOne.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myMediaPlayer.start(); } }); //Button related to stop btn Button myButtonTwo = (Button) findViewById(R.id.btn_stop); myButtonTwo.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myMediaPlayer.stop(); } }); } }

解决方案

if you want to start /stop sound on Button Click then use MediaPlayer.start() and MediaPlayer.pause() to pause currently playing sound which start again on start button click . and override Activity onPause to finally stop and free MediaPlayer. make changes in your code as :

onStop Button Click :

myButtonTwo.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myMediaPlayer.pause(); //>>pause current sound myMediaPlayer.seekTo(0); //>> seek to start it again } });

and override onPause method of Activity :

@Override protected void onPause{ super.onPause(); myMediaPlayer.stop(); //>>> stop myMediaPlayer myMediaPlayer.release(); //>>> free myMediaPlayer }