Question

安卓开发 点击一个按钮发出声音 求代码

Answer 1

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {
private MediaPlayer music = null;// 播放器引用
private Button button1 = null;// 按钮引用

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FindView();// 根据id照控件
SetEvent();// 给按钮添加事件
}

/**
* 找到控件
*/
private void FindView() {
button1 = (Button) findViewById(R.id.button1);
}

/**
* 添加事件
*/
private void SetEvent() {
Listener listener = new Listener();
button1.setOnClickListener(listener);

}

/**
* 按钮监听类
*
* @author Administrator
*
*/
private final class Listener implements View.OnClickListener {

@Override
public void onClick(View v) {
switch (v.getId()) {

case R.id.button1:
PlayMusic(R.raw.music);
break;
}

}
}

/**
* 播放音乐，参数是资源id
*
* @param MusicId
*/
private void PlayMusic(int MusicId) {

music = MediaPlayer.create(this, MusicId);
music.start();

}

}