Android实现淘宝倒计时功能

本文实例为大家分享了Android实现淘宝倒计时的具体代码,供大家参考,具体内容如下

一、效果图(这里为了方便我就没弄gif图了,功能是能动的)

二、实现步骤

1.自定义倒计时控件、

package com.cqxxny.myapplication;

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 java.util.Timer;

import java.util.TimerTask;

/**

* 功 能: 倒计时工具类

* 所属模块:

* 创建时间: 2018/11/15

* 功能描述:

*/

@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();

}

}

}

}

}

}

}

/**

*

* @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;

}

}

}

2.自定义控件xml、

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

android:orientation="horizontal">

<TextView

android:id="@+id/tv_hour_decade"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/sousuo"

android:gravity="center"

android:padding="5dp"

android:text="0"

android:textColor="#ffffff"

android:textSize="20dp" />

<TextView

android:id="@+id/tv_hour_unit"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="2dp"

android:background="@drawable/sousuo"

android:gravity="center"

android:padding="5dp"

android:text="0"

android:textColor="#ffffff"

android:textSize="20dp" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="center"

android:text=":"

android:padding="5dp"

android:textColor="#454545"

android:textSize="20dp" />

<TextView

android:id="@+id/tv_min_decade"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/sousuo"

android:gravity="center"

android:text="0"

android:padding="5dp"

android:textColor="#ffffff"

android:textSize="20dp"/>

<TextView

android:id="@+id/tv_min_unit"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="1dp"

android:background="@drawable/sousuo"

android:gravity="center"

android:padding="5dp"

android:text="0"

android:textColor="#ffffff"

android:textSize="20dp"/>

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="center"

android:text=":"

android:padding="5dp"

android:textColor="#454545"

android:textSize="20dp" />

<TextView

android:id="@+id/tv_sec_decade"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/sousuo"

android:gravity="center"

android:text="0"

android:padding="5dp"

android:textColor="#ffffff"

android:textSize="20dp"/>

<TextView

android:id="@+id/tv_sec_unit"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="1dp"

android:background="@drawable/sousuo"

android:gravity="center"

android:padding="5dp"

android:text="0"

android:textColor="#ffffff"

android:textSize="20dp" />

</LinearLayout>

3.自定义控件转圆角、

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android">

<!-- 背景颜色 -->

<solid android:color="#454545" />

<!-- 控制边界线颜色和大小 -->

<stroke

android:width="1dp"

android:color="#454545" />

<!-- 控制圆角大小 -->

<corners android:radius="5dp" />

</shape>

4.activity代码

package com.cqxxny.myapplication;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

/**

* 功 能: 倒计时

* 所属模块:

* 创建时间: 2018/11/15

* 功能描述:

*/

private RushBuyCountDownTimerView timerView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

timerView = (RushBuyCountDownTimerView) findViewById(R.id.timerView);

// 设置时间(hour,min,sec)

timerView.setTime(10, 0, 10);

// 开始倒计时

timerView.start();

}

}

5.activity的xml布局

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 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:gravity="center"

tools:context=".MainActivity">

<com.cqxxny.myapplication.RushBuyCountDownTimerView

android:id="@+id/timerView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"></com.cqxxny.myapplication.RushBuyCountDownTimerView>

</LinearLayout>

源码下载:Android实现淘宝倒计时

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