读取raw文件夹下的音乐
1.音乐播放简单布局文件:
android:layout_width="match_parent" android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.asus.android_26_mediaplayer.MainActivity">
android:layout_height="wrap_content"
android:id="@+id/seekbar_main"
/>
android:layout_height="wrap_content"
android:src="@android:drawable/ic_media_play"
android:onClick="isPlay"
android:layout_gravity="center_horizontal"
/>
2.MainActivity:
package com.asus.android_26_mediaplayer;
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;
public class MainActivity extends AppCompatActivity {
private MediaPlayer mediaPlayer;
private SeekBar seekbar_main;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
seekbar_main = (SeekBar) findViewById(R.id.seekbar_main);
//给滚动条设置滑动监听事件
seekbar_main.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
//获取拖动结束时的位置
int progress=seekbar_main.getProgress();
//音乐随滚动条进度进行播放
mediaPlayer.seekTo(progress);
}
});
}
public void isPlay(View view){
ImageButton imageButton= (ImageButton) view;
if (mediaPlayer==null){
//实例化MediaPlayer
mediaPlayer = MediaPlayer.create(this, R.raw.flowerdance);
//播放音乐
mediaPlayer.start();
//将播放图标变为暂停图标
imageButton.setImageResource(android.R.drawable.ic_media_pause);
//获取音乐总时长
int duration=mediaPlayer.getDuration();
//设置进度条最大值为音乐总时长
seekbar_main.setMax(duration);
new MyThread().start();
}else if (mediaPlayer.isPlaying()){
//暂停音乐
mediaPlayer.pause();
//将暂停图标变为播放图标
imageButton.setImageResource(android.R.drawable.ic_media_play);
}else {
mediaPlayer.start();
//将播放图标变为暂停图标
imageButton.setImageResource(android.R.drawable.ic_media_pause);
}
}
//写一个线程,让进度条随音乐进度动起来
class MyThread extends Thread{
@Override
public void run() {
super.run();
while (seekbar_main.getProgress()<=seekbar_main.getMax()){
//获取当前音乐播放位置
int currentPosition=mediaPlayer.getCurrentPosition();
//让进度条动起来
seekbar_main.setProgress(currentPosition);
}
}
}
}
读取内存卡音乐
1.读取内存卡需添加权限,在AndroidManifest.xml中添加
2.只需把MediaPlayer音源修改即可,如下:
if (mediaPlayer==null){
//实例化MediaPlayer
//1.播放应用内音乐
//mediaPlayer = MediaPlayer.create(this, R.raw.flowerdance);
//2.播放sd卡内音乐
mediaPlayer = new MediaPlayer();
//设置类型
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
//设置音源
mediaPlayer.setDataSource(this, Uri.parse("file://mnt/sdcard/Music/flowerdance.mp3"));
//准备一下
mediaPlayer.prepare();
} catch (IOException e) {
e.printStackTrace();
}
读取网络音乐
我们用Tomcat模拟网络音乐读取
1.找到Tomcat安装目录下面的bin,双击startup.bat
2.打开命令窗口,执行ipconfig,
找到IPv4 地址
复制IPv4地址,在电脑浏览器和手机浏览器上打开192.168.**.**:8080即可出现Tomcat首页
就说明连接成功<手机和电脑必须连的是同一个局域网>
3.以上成功后,说明环境已搭好,我们就可以写代码了:
只需将以上音乐播放的音源修改,异步准备,设置准备完成的监听即可<注:我的音乐文件是放在webapps/ROOT目录下>:
if (mediaPlayer==null){
//实例化MediaPlayer
//1.播放应用内音乐
//mediaPlayer = MediaPlayer.create(this, R.raw.flowerdance);
//2.播放sd卡内音乐
mediaPlayer = new MediaPlayer();
//设置类型
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
//设置音源
//mediaPlayer.setDataSource(this, Uri.parse("file://mnt/sdcard/Music/flowerdance.mp3"));
//准备一下
//mediaPlayer.prepare();
//播放网络音乐
mediaPlayer.setDataSource(this, Uri.parse("http://192.168.**.**:8080/flowerdance.mp3"));
//异步准备
mediaPlayer.prepareAsync();
} catch (IOException e) {
e.printStackTrace();
}
//监听,准备完成的监听
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
//播放音乐
mediaPlayer.start();
//将播放图标变为暂停图标
imageButton.setImageResource(android.R.drawable.ic_media_pause);
//获取音乐总时长
int duration=mediaPlayer.getDuration();
//设置进度条最大值为音乐总时长
seekbar_main.setMax(duration);
new MyThread().start();
}
});
}
4.添加网络权限即可:
音乐池播放<读取raw目录下的音乐文件>
1.布局文件
android:id="@+id/activity_sound_pool"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.asus.android_26_mediaplayer.SoundPoolActivity">
2.SoundPoolActivity:
package com.asus.android_26_mediaplayer;
import android.media.AudioManager;
import android.media.SoundPool;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class SoundPoolActivity extends AppCompatActivity {
private SoundPool soundPool;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sound_pool);
soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC,0);
//给音频池设置加载完成的监听
soundPool.setOnLoadCompleteListener(new SoundPool.OnLoadCompleteListener() {
@Override
public void onLoadComplete(SoundPool soundPool, int i, int i1) {
soundPool.play(i,1,1,1,-1,1);
}
});
}
public void playOne(View view){
soundPool.load(this,R.raw.rooster,1);
}
public void playTwo(View view){
soundPool.load(this,R.raw.chimp,1);
}
public void playThree(View view){
soundPool.load(this,R.raw.crickets,1);
}
public void playFour(View view){
soundPool.load(this,R.raw.roar,1);
}
public void playDog(View view){
soundPool.load(this,R.raw.dogbark,1);
}
@Override
protected void onDestroy() {
super.onDestroy();
if(soundPool!=null){
//退出时,自动释放资源
soundPool.release();
//将音乐池清空
soundPool=null;
}
}
}