package?com.example.xiaoluo.myapplication;

import?android.annotation.TargetApi;
import?android.content.Context;
import?android.graphics.Canvas;
import?android.graphics.Color;
import?android.graphics.Paint;
import?android.os.Build;
import?android.util.AttributeSet;
import?android.view.View;

import?java.util.Calendar;

/**
?*?Created?by?xiaoluo?on?2016/1/11.
?*/
public?class?TimerView?extends?View?{

????private?int?mWidthmHeight;

????public?TimerView（Context?context）{
????????super（context）;
????}
????public?TimerView（Context?contextAttributeSet?attrs）{
????????super（contextattrs）;
????}
????public?TimerView（Context?context?AttributeSet?attrs?int?defstyleAttr）?{
????????super（context?attrs?defstyleAttr）;
????}

????@TargetApi（Build.VERSION_CODES.LOLLIPOP）
????@Override
????protected?void?onDraw（Canvas?canvas）?{

????????//設(shè)置畫(huà)布背景
????????canvas.drawColor（Color.GRAY）;

????????//獲取屏幕寬度
????????mWidth=getMeasuredWidth（）;
????????//獲取屏幕高度
????????mHeight=getMeasuredHeight（）;

????????//獲取系統(tǒng)時(shí)間
????????//Calendar里面月份的值是從0~11，對(duì)應(yīng)1~12
????????//星期幾是從星期天開(kāi)始算的
????????Calendar?calendar=Calendar.getInstance（）;
????????int?year=calendar.get（Calendar.YEAR）;
????????int?month=calendar.get（Calendar.MONTH）;
????????int?day=calendar.get（Calendar.DAY_OF_MONTH）;
????????int?week=calendar.get（Calendar.DAY_OF_WEEK）;
????????String?sYearsMonthsDaysWeek;
????????sYear=String.valueOf（year）;
????????sMonth=String.valueOf（month+1）;
????????sDay=String.valueOf（day）;
????????sWeek=String.valueOf（week）;
????????if?（week==1）{
????????????sWeek=“日“;
????????}else?if（week==2）{
????????????sWeek=“一“;
????????}else?if（week==3）{
????????????sWeek=“二“;
????????}else?if（week==4）{
????????????sWeek=“三“;
????????}else?if（week==5）{
????????????sWeek=“四“;
????????}else?if（week==6）{
????????????sWeek=“五“;
????????}else?if（week==7）{
????????????sWeek=“六“;
????????}
????????int?hour=calendar.get（Calendar.HOUR_OF_DAY）;
????????if?（hour>12）{
????????????hour=hour-12;
????????}
????????int?minute=calendar.get（Calendar.MINUTE）;
????????int?second=calendar.get（Calendar.SECOND）;

????????//顯示時(shí)間
????????Paint?paintTime=new?Paint（）;
????????paintTime.setColor（Color.BLUE）;
????????//要先設(shè)置畫(huà)筆顏色后，設(shè)置透明度才有效果
????????paintTime.setAlpha（100）;
????????paintTime.setStrokeWidth（25）;
????????paintTime.setTextSize（50）;
????????String?mHour=String.valueOf（hour）;
????????canvas.drawText（mHour?mWidth?/?2-80?mHeight?/?2-130?paintTime）;
????????canvas.drawText（“:“?mWidth?/?2-20?mHeight?/?2-130?paintTime）;
????????String?mMinute=String.valueOf（minute）;
????????canvas.drawText（mMinute?mWidth?/?2?mHeight?/?2-130?paintTime）;
????????canvas.drawText（“:“?mWidth?/?2+60?mHeight?/?2-130?paintTime）;
????????String?mSecond=String.valueOf（second）;
????????canvas.drawText（mSecondmWidth/2+80mHeight/2-130paintTime）;

????????canvas.drawText（sYear+“.“+sMonth+“.“+sDay+“-----星期“+sWeekmWidth/2-200mHeight/2+180paintT