Question

请问我在让模拟器处理我的代码时遇到问题。我有下面的代码，我希望能够播放声音，当我点击我在模拟器上创建的按钮，但每当我运行代码时，模拟器不弹出，而是媒体播放器弹出，声音播放它自己的。请帮忙。有什么我做错了吗？谢谢你的帮助。

以下是我的代码

public class Sound扩展ActionBarActivity {

MediaPlayer Sound;
private static Button btnsound;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sound);
    Sound = MediaPlayer.create(this, R.raw.coins);
    playsound();
}

public void playSound (View view) {
    Sound.start();
}

public void playsound(){
    btnsound=(Button) findViewById(R.id.button_sound);

    btnsound.setOnClickListener(
            new View.OnClickListener(){
                @Override
            public void onClick (View v){

                    Sound.start();

                }
});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_sound, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

}

activity.xml

<Button
    android:layout_width="175dp"
    android:layout_height="wrap_content"
    android:text="@string/btnsound"
    android:onClick="playSound"
    android:id="@+id/button_sound"
    android:layout_gravity="center_horizontal"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"

    android:layout_marginTop="154dp" />

Answer 1

当声音在它自己的声音上播放时，你在onCreate内部调用方法playsound()，删除该行并在Button Listener中调用此方法，使它保持这样：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sound);
    Sound = MediaPlayer.create(this, R.raw.coins);
    btnsound = (Button) findViewById(R.id.button_sound);

    btnsound.setOnClickListener(
        new View.OnClickListener(){
            @Override
        public void onClick (View v){
                playSound();
            }  
    });
}
public void playSound () {
    Sound.start();
}

你的声明和功能有些混乱，请注意。

让模拟器运行

1 个答案: