Question

如果我实现OnClickListener，声音效果将在单击按钮时起作用。在实施OnTouchListener时，声音效果无法触及它。那么如何在实现OnTouchListener？

时启用声音效果

修改

如果我使用点击方法，这是代码：

public class CalculatorActivity extends Activity implements OnClickListener
{
    //...
    private Button btn1;
    private EditText edLCD;
    //...

    public void onCreate(Bundle savedInstanceState)
    {
        //...
        btn1 = (Button) findViewById(R.id.d1);
        btn1.setOnClickListener(this);

        edLCD = (EditText) findViewById(R.id.edLCD);
    }

    //...

    public void onClick(View v)
    {
        edLCD.setText(edLCD.getText().toString() + "1");
    }
}

如果我使用触摸式方法，这是代码：

public class CalculatorActivity extends Activity implements OnTouchListener
{
    //...
    private Button btn1;
    private EditText edLCD;
    //...

    public void onCreate(Bundle savedInstanceState)
    {
        //...
        btn1 = (Button) findViewById(R.id.d1);
        btn1.setOnTouchListener(this);

        edLCD = (EditText) findViewById(R.id.edLCD);
    }

    //...

    public boolean onTouch(View v, MotionEvent event)
    {
        if(event.getAction() == MotionEvent.ACTION_DOWN)
        {
            edLCD.setText(edLCD.getText().toString() + "1");
        }
        return true;
    }
}

Answer 1

...试

public boolean onTouch(View v, MotionEvent event)
{
    if(event.getAction() == MotionEvent.ACTION_DOWN)
    {
        v.playSoundEffect(SoundEffectConstants.CLICK);
        edLCD.setText(edLCD.getText().toString() + "1");
    }
    return true;
}

如何在触摸按钮时启用声音效果？

1 个答案: