[英]How to stop already playing sound and immediately start another
當播放用戶先前選擇的聲音時,如何停止播放該聲音並立即播放新選擇的聲音? 到目前為止,我擁有的代碼只能停止新聲音,但是用戶必須再次選擇聲音才能播放。
public class MainActivity extends Activity {
public MediaPlayer mediaPlayer = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button a = (Button) findViewById(R.id.First);
a.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mediaPlayer == null) {
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.firstsound);
mediaPlayer.stop();
}
else {
mediaPlayer.start();
mediaPlayer = null;
}
}
}
);
Button b = (Button) findViewById(R.id.Second);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mediaPlayer == null) {
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.secondsound);
mediaPlayer.stop();
}
else {
mediaPlayer.start();
mediaPlayer = null;
}
}
}
);
我正在制作具有30多種聲音的音板,如果有幫助的話。 我需要對代碼進行哪些更改(我認為是輕微的)? 任何幫助將不勝感激!
public class MainActivity extends Activity {
public MediaPlayer mediaPlayer = null;
public Boolean playing=false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button a = (Button) findViewById(R.id.First);
a.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
(playing)mediaPlayer.stop();
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.firstsound);
mediaPlayer.start();
playing=true;
}
});
Button b = (Button) findViewById(R.id.Second);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
(playing)mediaPlayer.stop();
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.firstsound);
mediaPlayer.start();
playing=true;
}
});
}
}
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