Android - counter&count down

2일차에 사용되었던 count에 대해 코드만 포스팅하겠습니다.

실직적으로 눈으로 보기 위하여 textView를 이용하였습니다.

그리고 사용하다 느꼈는데 딜레이가 발생합니다.

package com.example.testcount; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.os.CountDownTimer; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.TextView; public class MainActivity extends ActionBarActivity { private TextView timecount; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); timecount=(TextView)findViewById(R.id.timecount); CountDownTimer mCountDown = null; mCountDown = new CountDownTimer(20000,1000) { @Override public void onTick(long millisUntilFinished) { timecount.setText("" + millisUntilFinished / 1000); } @Override public void onFinish() { //끝났을때 하는거 } }; //mCountDown.cancel(); 도중 취소 mCountDown.start(); } }

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.testcount.MainActivity" > <TextView android:id="@+id/timecount" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hello_world" /> </RelativeLayout>