在 android 应用程序中播放背景声音 [英] Play Background Sound in android applications

问题描述

我想在我制作的应用中播放背景声音.帮助我我该怎么做?...这是完整的代码.

I want to play background sound in my app which I made. Help me how can I do this?...Here is the entire code.

public class Numbers extends Activity {
    public static MediaPlayer mp = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_numbers);
        ViewPager viewPager = (ViewPager)findViewById(R.id.view_pager);
        ImagePagerAdapter adapter = new ImagePagerAdapter();
        viewPager.setAdapter(adapter);
    }

    private class ImagePagerAdapter extends PagerAdapter {
        private int[] mImages = new int[]{R.drawable.no1,R.drawable.no2,R.drawable.no3,R.drawable.no4,R.drawable.no5,R.drawable.no6,R.drawable.no7,R.drawable.no8,R.drawable.no9};

        @Override
        public int getCount() {
            return mImages.length;
        }
        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == ((ImageView) object);
        }
        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            Context context = Numbers.this;
            ImageView imageView = new ImageView(context);
            int padding =context.getResources().  
            getDimensionPixelSize(R.dimen.activity_vertical_margin);
            imageView.setPadding(padding, padding, padding, padding);
            imageView.setScaleType(ImageView.ScaleType.CENTER);
            imageView.setImageResource(mImages[position]);
            ((ViewPager) container).addView(imageView, 0);

            @Override
            public void destroyItem(ViewGroup container, int position, Object object) {
                ((ViewPager) container).removeView((ImageView) object);
            }
        }
    }//end of sub-class ImagePagerAdapter
}//End of Numbers class

告诉我我需要在此代码中添加什么来播放背景音乐，该背景音乐将处于循环模式，直到应用程序运行.

Just tell me what I need to add in this code to play background music which will be in loop mode till the app runs.

推荐答案

最好将您的媒体代码投入使用.这是在后台播放媒体的最佳方式.

Better to put your media code in service. It is best way to play media in background.

public class serv extends Service{

    MediaPlayer mp;
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
    public void onCreate()
    {   
        mp = MediaPlayer.create(this, R.raw.b);
        mp.setLooping(false);
    }
    public void onDestroy()
    {       
        mp.stop();
    }
    public void onStart(Intent intent,int startid){

        Log.d(tag, "On start");
        mp.start();
    }
}

其中 raw 是在资源中创建的文件夹.R.raw.b 是一个 mp3 文件.

where raw is folder created in resources. and R.raw.b is an mp3 file.

这篇关于在 android 应用程序中播放背景声音的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！