/** * 新数据Toast提示控件(带音乐播放) * @author liux (http://my.oschina.net/liux) * @version 1.0 * @created 2012-8-30 */public class NewDataToast extends Toast{        private MediaPlayer mPlayer;    private boolean isSound;        public NewDataToast(Context context) {        this(context, false);    }        public NewDataToast(Context context, boolean isSound) {        super(context);                this.isSound = isSound;        mPlayer = MediaPlayer.create(context, R.raw.newdatatoast); 　　//播放结束后立即释放播放器资源        mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){            @Override            public void onCompletion(MediaPlayer mp) {                mp.release();            }                    });    }    @Override    public void show() {        super.show();                if(isSound){            mPlayer.start();        }    }        /**     * 设置是否播放声音     */    public void setIsSound(boolean isSound) {        this.isSound = isSound;    }        /**     * 获取控件实例     * @param context     * @param text 提示消息     * @param isSound 是否播放声音     * @return     */    public static NewDataToast makeText(Context context, CharSequence text, boolean isSound) {        NewDataToast result = new NewDataToast(context, isSound);                LayoutInflater inflate = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);                DisplayMetrics dm = context.getResources().getDisplayMetrics();        //自定义toast布局          View v = inflate.inflate(R.layout.new_data_toast, null);        v.setMinimumWidth(dm.widthPixels);//设置控件最小宽度为手机屏幕宽度                TextView tv = (TextView)v.findViewById(R.id.new_data_toast_message);        tv.setText(text);                result.setView(v);         result.setDuration(600);//设置显示时间        result.setGravity(Gravity.TOP, 0, (int)(dm.density*75));//设置toast显示位置        return result;    }    }