问题是我在使用recorder的时候 程序没有响应，recorder.start() 的功能是 录音+ 画声纹。

原本当使用多线程的调用，用runnable，暂停按钮是没有反应的（延迟好几秒），不能及时结束线程。估计是在UI更新上的问题（可是不是已经用新线程了嘛？）

然后现在用的handler的switch 来写，也是延迟的问题

错误依然是 主线程要处理太多东西、、

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

        case R.id.receive_activity_back:
            finish();
            break;

        case R.id.btn_receive_activity_play:
            Message msg = Message.obtain();
            msg.what = IS_REC;
            Log.i("MSG",msg.what + "");
            mhandler.sendMessage(msg);
            break;

        case R.id.btn_receive_activity_replay:
            msg = Message.obtain();
            msg.what = STOP_REC;
            Log.i("MSG",msg.what + "");
            mhandler.sendMessage(msg);
            break;
    }
}

 Handler  mhandler = new Handler() {
        public void handleMessage(Message msg) {
            tv.append("ing///....." + msg.what);
            switch (msg.what){
                case 1:
                    Calendar c = Calendar.getInstance();
                    String ss = c.get(Calendar.YEAR) + "-" + (c.get(Calendar.MONTH) + 1) + "-" + c.get(Calendar.DAY_OF_MONTH) + "-"
                            + c.get(Calendar.HOUR_OF_DAY) + "-" + c.get(Calendar.MINUTE) + "-" + c.get(Calendar.SECOND);
                    ss = path + "/" + ss + ".arm";
                    Log.i("MSG", ss);
                    mRecorder.setOutputFile(ss);
                    mRecorder.prepare();
                    mRecorder.start();
                    Log.i("MSG", "start to recorder");
                    break;
                case 0:
                    mRecorder.stop();
                    mRecorder.release();
                    break;
            }
        }
    };

}