感谢阅读这篇文章,我对自己开发的应用程序功能之一有问题,即我在原始文件夹中运行的MediaPlayer。当我尝试同时同时播放2个MediaPlayer时,出现问题,另一个MediaPlayer在另一个MediaPlayer运行时应自动停止,但这不会,即使退出活动,MediaPlayer仍在运行,是否有与此相关的解决方案。这是我的代码
MediaPlayer mediaPlayer1,mediaPlayer2,mediaPlayer3;
ImageButton btn1, btn2, btn3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hukum_ra_tarqiq);
btn1 = findViewById(R.id.play_toggle_ratarqiq1);
btn1.setOnClickListener(this);
mediaPlayer1 = MediaPlayer.create(this,R.raw.madtarqiqc1);
btn2 = findViewById(R.id.play_toggle_ratarqiq2);
btn2.setOnClickListener(this);
mediaPlayer2 = MediaPlayer.create(this,R.raw.madtarqiqc2);
btn3 = findViewById(R.id.play_toggle_ratarqiq3);
btn3.setOnClickListener(this);
mediaPlayer3 = MediaPlayer.create(this,R.raw.madtarqiqc3);
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.play_toggle_ratarqiq1:
setmpFirst();
break;
case R.id.play_toggle_ratarqiq2:
setmpSecond();
break;
case R.id.play_toggle_ratarqiq3:
setmpThird();
break;
}
}
private void setmpFirst(){
if (mediaPlayer1.isPlaying()){
if (mediaPlayer1 != null){
mediaPlayer1.pause();
if (isFinishing()){
mediaPlayer1.stop();
mediaPlayer1.release();
}
}
btn1.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp);
}else {
mediaPlayer1.start();
btn1.setImageResource(R.drawable.ic_play_circle_outline_black_24dp);
}
}
private void setmpSecond(){
if (mediaPlayer2.isPlaying()){
if (mediaPlayer2 != null){
mediaPlayer2.pause();
if (isFinishing()){
mediaPlayer2.stop();
mediaPlayer2.release();
}
}
btn2.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp);
}
else {
mediaPlayer2.start();
btn2.setImageResource(R.drawable.ic_play_circle_outline_black_24dp);
}
}
private void setmpThird(){
if (mediaPlayer3.isPlaying()){
if (mediaPlayer3 != null){
mediaPlayer3.pause();
if (isFinishing()){
mediaPlayer3.stop();
mediaPlayer3.release();
}
}
btn3.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp);
}
else {
mediaPlayer3.start();
btn3.setImageResource(R.drawable.ic_play_circle_outline_black_24dp);
}
}
我想要的是,当上面的MediaPlayer运行时[同时时,首先单击MediaPlayer以运行,并且others stop,以及当我退出活动时,MediaPlayer自动停止,是否存在解决方案还是上面的代码有没有简化?
int[] playList = new int[3];
playList[0] = R.raw.madtarqiqc1;
playList[1] = R.raw.madtarqiqc2;
playList[2] = R.raw.madtarqiqc3;
并在Global Variable
中设置播放位置
int play = 0;
您可以使用mediaPlayer.setOnCompletionListener()
控制>例如,
MediaPlayer mediaPlayer = MediaPlayer.create(this, playList[play]); mediaPlayer.start(); mediaPlayer.setOnCompletionListener(completionListener); MediaPlayer.OnCompletionListener completionListener = new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mediaPlayer) { play++; if (play < playList.length) { mediaPlayer = MediaPlayer.create(BackGroundSound.this, playList[play]); mediaPlayer.start(); } else { play = 0; mediaPlayer = MediaPlayer.create(BackGroundSound.this, playList[play]); mediaPlayer.start(); } } };
以及当您创建下一个按钮(或单击事件)时。只是
mediaPlayer.stop(); mediaPlayer = MediaPlayer.create(this, playList[position]); mediaPlayer.start();
p.s]我修改了您的代码。检查一下。
public class MainActivity extends AppCompatActivity implements View.OnClickListener { MediaPlayer mediaPlayer; ImageButton btn1, btn2, btn3; int[] playList; int play = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btn1 = (ImageButton) findViewById(R.id.play_toggle_ratarqiq1); btn2 = (ImageButton) findViewById(R.id.play_toggle_ratarqiq2); btn3 = (ImageButton) findViewById(R.id.play_toggle_ratarqiq3); int[] playList = new int[3]; playList[0] = R.raw.madtarqiqc1; playList[1] = R.raw.madtarqiqc2; playList[2] = R.raw.madtarqiqc3; mediaPlayer = MediaPlayer.create(this, playList[play]); mediaPlayer.setOnCompletionListener(completionListener); } MediaPlayer.OnCompletionListener completionListener = new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mediaPlayer) { play++; if (play < playList.length) { mediaPlayer = MediaPlayer.create(MainActivity.this, playList[play]); mediaPlayer.start(); } else { play = 0; mediaPlayer = MediaPlayer.create(MainActivity.this, playList[play]); mediaPlayer.start(); } } }; @Override public void onClick(View view) { switch (view.getId()){ case R.id.play_toggle_ratarqiq1: playMusic(0); break; case R.id.play_toggle_ratarqiq2: playMusic(1); break; case R.id.play_toggle_ratarqiq3: playMusic(2); break; } } private void playMusic(int position) { mediaPlayer.stop(); mediaPlayer = MediaPlayer.create(this, playList[position]); mediaPlayer.start(); changeView(position); } private void changeView(int position) { if (position == 0) { btn1.setImageResource(R.drawable.ic_play_circle_outline_black_24dp); btn2.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); btn3.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); } else if (position == 1) { btn1.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); btn2.setImageResource(R.drawable.ic_play_circle_outline_black_24dp); btn3.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); } else if (position == 2) { btn1.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); btn2.setImageResource(R.drawable.ic_pause_circle_outline_black_24dp); btn3.setImageResource(R.drawable.ic_play_circle_outline_black_24dp); } } }