仿淘宝倒计时

 一下是自定义视图， 下面还有布局和使用方法。

@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.time, 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();
starTop.starTops();
              }
            }
          }
        }
      }
    }
  }

/**
*
* @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;
    }

  }
private StarTop starTop;
public void setStarTop(StarTop starTop){
this.starTop=starTop;
  }
public interface  StarTop{
void starTops();

  }
}

 资源布局    在layout 中创建 time.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/tv_hour_decade"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"

        android:text="0"
        android:textColor="#333333"
         />

    <TextView
        android:id="@+id/tv_hour_unit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="2dp"
        android:gravity="center"
        android:text="0"
        android:textColor="#333333"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text=":"
        android:textColor="#333333"
       />

    <TextView
        android:id="@+id/tv_min_decade"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="0"
        android:textColor="#333333"
       />

    <TextView
        android:id="@+id/tv_min_unit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="1dp"

        android:gravity="center"
        android:text="0"
        android:textColor="#333333"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text=":"
        android:textColor="#333333"
       />


    <TextView
        android:id="@+id/tv_sec_decade"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        android:gravity="center"
        android:text="0"
        android:textColor="#333333"
       />

    <TextView
        android:id="@+id/tv_sec_unit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="1dp"
        android:gravity="center"
        android:text="0"
        android:textColor="#333333"
         />

</LinearLayout>

 

使用方法  在布局中引用

  

 <com.example.jing.candies.view.RushBuyCountDownTimerView
                    android:layout_width="wrap_content"
                    android:layout_marginTop="6dp"
                    android:id="@+id/star_time"        
                    android:layout_height="wrap_content"></com.example.jing.candies.view.RushBuyCountDownTimerView>

在代码中进行设置 倒计时和启动

 star_time.setTime(时,分,秒);
star_time.start();