Android:VideoView以及MediaPlayer撥放音訊

音訊檔以及影片檔要放置專案 res/raw 中

package com.mediaplayer;

import ...

public class mediaPlayer extends Activity {

ListView lv;

Spinner sp;

CharSequence[] activity = { "播放影片", "播放音樂從專案", "播放音樂從SD卡" };

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

lv = (ListView) findViewById(R.id.listView1);

                //建立以及設定接口

ArrayAdapter ada = new ArrayAdapter(this,

android.R.layout.simple_list_item_1, activity);

lv.setAdapter(ada);

                //建立監聽物件

lv.setOnItemClickListener(new OnItemClickListener() {

public void onItemClick(AdapterView<?> arg0, View arg1,

int position, long id) {

// TODO Auto-generated method stub

switch (position) {

case 0:

Intent vintent = new Intent(mediaPlayer.this,

video.class);

startActivity(vintent);

break;

case 1:

Intent aintent = new Intent(mediaPlayer.this, Audio.class);

startActivity(aintent);

break;

case 2:

Intent a2intent = new Intent(mediaPlayer.this, Audio2.class);

startActivity(a2intent);

break;

}

}

});

}

}

package com.mediaplayer;

import ...

//使用VideoView撥放影片

public class video extends Activity {

VideoView vv;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.videoview);

vv=(VideoView)findViewById(R.id.videoView1);

//影片檔在SD Card寫法

//Uri uri=Uri.parse("file:///sdcard/navy.3gp");

//影片在專案檔中

Uri uri=Uri.parse("android.resource://com.mediaplayer/" + R.raw.navy);

//設定路徑

vv.setVideoURI(uri);

//建立媒體控制器

MediaController mc=new  MediaController(this);

//將媒體控制器設給VideoView

vv.setMediaController(mc);

vv.requestFocus();

//播放

vv.start();

}

}

package com.mediaplayer;

import android.app.Activity;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.widget.TextView;

//撥放於專案內之音訊檔

public class Audio extends Activity {

// 宣告MediaPlayer類別變數

MediaPlayer medi;

String path;

TextView tex;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.audio);

tex = (TextView) findViewById(R.id.textView1);

//撥放音訊檔來自於專案內較簡單，只要使用MediaPlayer.create(Content, 

                 R.raw.XX)建立物件

//再start()播放即可

medi = MediaPlayer.create(this, R.raw.aa);

medi.start();

tex.setText("playing...");

}

@Override

//記得要在 onDestroy()時將MediaPlayer物件給release掉

protected void onDestroy() {

// TODO Auto-generated method stub

super.onDestroy();

medi.release();

}

}

package com.mediaplayer;

import ...

public class Audio2 extends Activity {

TextView tex;

// SD卡上音訊檔的路徑

final private String path = "/sdcard/song11.mp3";

MediaPlayer mp;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.audio2);

tex = (TextView) findViewById(R.id.textView1);

// 建立物件，方法與音訊檔在專案內不同

mp = new MediaPlayer();

try {

// 設定路徑

mp.setDataSource(path);

// 狀態由Initialized到Prepare狀態

mp.prepare();

// 狀態由prepare狀態到start狀態

mp.start();

tex.setText("playing...");

} catch (Exception e) {

Toast.makeText(this, "無法撥放音訊", Toast.LENGTH_SHORT).show();

}

}

@Override

// 記得release MediaPlayer

protected void onDestroy() {

// TODO Auto-generated method stub

super.onDestroy();

mp.release();

}

}