模仿淘宝客户端倒计时控件

/* * Copyright (c) 2014, 青岛司通科技有限公司 All rights reserved. * File Name：RushBuyCountDownTimerView.java * Version：V1.0 * Author：zhaokaiqiang * Date：2014-9-26 */ package com.qust.widght; import java.util.Timer; import java.util.TimerTask; import android.annotation.SuppressLint; import android.content.Context; import android.os.Handler; import android.os.Message; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; import com.qust.rushbuycountdowntimerview.R; @SuppressLint("HandlerLeak") public class RushBuyCountDownTimerView extends LinearLayout { // 小时，十位 private TextView tv_hour_decade; // 小时，个位 private TextView tv_hour_unit; // 分钟，十位 private TextView tv_min_decade; // 分钟，个位 private TextView tv_min_unit; // 秒，十位 private TextView tv_sec_decade; // 秒，个位 private TextView tv_sec_unit; private Context context; private int hour_decade; private int hour_unit; private int min_decade; private int min_unit; private int sec_decade; private int sec_unit; // 计时器 private Timer timer; private Handler handler = new Handler() { public void handleMessage(Message msg) { countDown(); }; }; public RushBuyCountDownTimerView(Context context, AttributeSet attrs) { super(context, attrs); this.context = context; LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = inflater.inflate(R.layout.view_countdowntimer, this); tv_hour_decade = (TextView) view.findViewById(R.id.tv_hour_decade); tv_hour_unit = (TextView) view.findViewById(R.id.tv_hour_unit); tv_min_decade = (TextView) view.findViewById(R.id.tv_min_decade); tv_min_unit = (TextView) view.findViewById(R.id.tv_min_unit); tv_sec_decade = (TextView) view.findViewById(R.id.tv_sec_decade); tv_sec_unit = (TextView) view.findViewById(R.id.tv_sec_unit); } /** * * @Description: 开始计时 * @param * @return void * @throws */ public void start() { if (timer == null) { timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { handler.sendEmptyMessage(0); } }, 0, 1000); } } /** * * @Description: 停止计时 * @param * @return void * @throws */ public void stop() { if (timer != null) { timer.cancel(); timer = null; } } /** * @throws Exception * * @Description: 设置倒计时的时长 * @param * @return void * @throws */ public void setTime(int hour, int min, int sec) { if (hour >= 60 || min >= 60 || sec >= 60 || hour < 0 || min < 0 || sec < 0) { throw new RuntimeException("Time format is error,please check out your code"); } hour_decade = hour / 10; hour_unit = hour - hour_decade * 10; min_decade = min / 10; min_unit = min - min_decade * 10; sec_decade = sec / 10; sec_unit = sec - sec_decade * 10; tv_hour_decade.setText(hour_decade + ""); tv_hour_unit.setText(hour_unit + ""); tv_min_decade.setText(min_decade + ""); tv_min_unit.setText(min_unit + ""); tv_sec_decade.setText(sec_decade + ""); tv_sec_unit.setText(sec_unit + ""); } /** * * @Description: 倒计时 * @param * @return boolean * @throws */ private void countDown() { if (isCarry4Unit(tv_sec_unit)) { if (isCarry4Decade(tv_sec_decade)) { if (isCarry4Unit(tv_min_unit)) { if (isCarry4Decade(tv_min_decade)) { if (isCarry4Unit(tv_hour_unit)) { if (isCarry4Decade(tv_hour_decade)) { Toast.makeText(context, "时间到了", Toast.LENGTH_SHORT).show(); stop(); } } } } } } } /** * * @Description: 变化十位，并判断是否需要进位 * @param * @return boolean * @throws */ private boolean isCarry4Decade(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 5; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } /** * * @Description: 变化个位，并判断是否需要进位 * @param * @return boolean * @throws */ private boolean isCarry4Unit(TextView tv) { int time = Integer.valueOf(tv.getText().toString()); time = time - 1; if (time < 0) { time = 9; tv.setText(time + ""); return true; } else { tv.setText(time + ""); return false; } } }