Question

我在Activity上实现了一个Toggle Botton。我想在该按钮上添加声音（开启和关闭），但我无法在其上添加声音。

这是我写的代码。

public class SoundLayout extends Activity implements OnClickListener
{
Button soundBttnOn;
private String _showText;


@Override

protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.sound_layout);

/** Fetched from the MAIN ACTIVITY */
Bundle bundle = getIntent().getExtras();
if(bundle!=null){
    _showText = bundle.getString("button_click");
}
Log.i("btnClick","button clicked is :"+_showText);
soundBttnOn = (Button) findViewById(R.id.togglebutton);
soundBttnOn.setOnClickListener(this);
}


@Override

public void onClick(View view) {
// TODO Auto-generated method stub
/** make a refernce to store the intent when the view has been clicked*/
Intent intent;  
/** Make cases according to the number of buttons you have in screen
 * In this case, I've added one.*/
switch(view.getId()){

case R.id.togglebutton :
    Log.i("btnClick","Result button is clicked whose id is :"+view.getId());
    /** Intent should be fired from this activity to the other activity*/
    intent = new Intent(SoundLayout.this, Main.class);

    /** Start the intent
     * startActivity(intent);
    this.finish();*/

    break;
}
}

}

这里我尝试在切换按钮上添加声音，但我无法在其上添加声音功能。因此，当我点击'声音开启'时，它会被激活，当我点击'声音关闭'时，它会被取消激活。

Answer 1

只需将声音文件放在/ res / raw中（创建文件夹后），然后使用MediaPlayer初始化，启动然后停止播放声音。

MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.AudioFile1); mp.start();

然后你从mp获得所有开始/停止/重置/暂停/释放方法。

Answer 2

你可以使用切换按钮的setOnCheckedChangeListener。在这里你得到一个参数，表明按钮是处于开启状态还是关闭状态。基于此，你可以使用媒体播放器播放所需的声音。

ToggleButton tb = (ToggleButton) findViewById(R.id.toggleButton);
    tb.setOnCheckedChangeListener(new OnCheckedChangeListener() {

        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if(isChecked)
                System.out.println("ischecked>>>>>>>>>>>>>>>>>>>>>>>>>.");
            else
                System.out.println("not checked>>>>>>>>>>>>>>>>>>>>>>>>>.");

        }
    });

Answer 3

public void togglesound(View v) {
    int play;
    boolean on = ((ToggleButton) v).isChecked();

    if (on) {
        play = 1;
        // Enable sound
        if (play == 1) {
            cleanUpMediaPlayer();
            Vibrator vibe = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
            vibe.vibrate(10000);//TIME TO VIBRATE

            mp = MediaPlayer.create(this, R.raw.musicmachine);

            mp.start();
        } else {
            play = 0;
            // Disable sound
            stopMediaPlayer();

        }

    }


}
// Cleans MediaPlayer 
public void cleanUpMediaPlayer() {
    if (mp != null) {
        try {
            mp.stop();
            mp.release();
            mp = null;
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(Displayone.this, "Error", Toast.LENGTH_LONG).show();

        }
    }
}
@Override
protected void onPause() {
    super.onPause();
    stopMediaPlayer();
}

public void stopMediaPlayer()
{
    mp.stop();
}

如何在切换按钮上添加声音？

3 个答案: