我在 res 文件夹中有 2 首歌曲如何使用其中之一播放mediaplayer
我已将此代码用于 2 首不同的歌曲我如何使用一个媒体播放器播放歌曲
公共类国歌扩展活动{
int songs[]={R.drawable.inno,R.drawable.vandemataram};
MediaPlayer mp;
ImageButton play,stop,b1,b2,back,exit,b3;
//Button back,exit;
MediaPlayer mediaPlayer,mediaplayer1;
RadioGroup rg;
RadioButton van,jana;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.natinal_play);
mp=new MediaPlayer();
back=(ImageButton)findViewById(R.id.imageButton6);
exit=(ImageButton)findViewById(R.id.imageButton5);
b1=(ImageButton)findViewById(R.id.imageButton3);
b2=(ImageButton)findViewById(R.id.imageButton2);
b3=(ImageButton)findViewById(R.id.exitbton);
rg=(RadioGroup)findViewById(R.id.radioGroup1);
van=(RadioButton)findViewById(R.id.radiov);
jana=(RadioButton)findViewById(R.id.Radioja);
//mediaPlayer = MediaPlayer.create(getApplicationContext(),R.drawable.inno);
//mediaplayer1 = MediaPlayer.create(getApplicationContext(),R.drawable.vandemataram);
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
if (mediaPlayer != null)
// mediaPlayer.reset();
switch (checkedId) {
case R.id.radiov:
mediaPlayer = MediaPlayer.create(getApplicationContext(),songs[0]);
mediaPlayer.start();
break;
case R.id.Radioja:
mediaPlayer = MediaPlayer.create(getApplicationContext(),songs[1]);
mediaPlayer.start();
break;
default:
break;
}
}
});
}
});
b2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//mediaPlayer.release();
mediaPlayer.stop();
mediaPlayer = MediaPlayer.create(getApplicationContext(),R.drawable.inno);
}
});
b3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
mediaPlayer.pause();
//mediaplayer1.pause();
}
});
back.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//mediaplayer1.stop();
mediaPlayer.stop();
mediaPlayer = MediaPlayer.create(getApplicationContext(),R.drawable.inno);
Intent i2= new Intent(getApplicationContext(),Second.class);
startActivity(i2);
//finish();
}
});
exit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//mediaplayer1.stop();
AlertDialog.Builder altert =new AlertDialog.Builder(Nationalanthem.this);
altert.setTitle("Exit");
altert.setIcon(R.drawable.ic_launcher);
altert.setMessage("Are you sure want to exit");
altert.setPositiveButton("Yes",new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addCategory(Intent.CATEGORY_HOME);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
finish();
startActivity(intent);
mediaPlayer.stop();
mediaPlayer = MediaPlayer.create(getApplicationContext(),R.drawable.inno);
mediaplayer1.stop();
mediaplayer1 = MediaPlayer.create(getApplicationContext(),R.drawable.vandemataram);
}
});
altert.setNegativeButton("No",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//Toast.makeText(getApplicationContext(), "this is delete",Toast.LENGTH_LONG).show();
}
});
altert.show();
//System.exit(0);
}
});
}
}
我现在无法听歌没有声音