android - 如何在切换按钮上添加声音？

Question

我在 Activity 上实现了一个 Toggle Botton。我想为该按钮添加声音(开和关)，但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;
}
}

}

在这里，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“开启声音”时，它会被激活，而当我点击“关闭声音”时，它会被停用。

Answer 1

您可以使用切换按钮的 setOnCheckedChangeListener。在此您会得到一个参数，指示按钮是处于打开还是关闭状态。基于它，您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>>>>>>>>>>>>>>>>>>>>>>>>>.");

        }
    });