第一个Mac程序——倒计时v1&v2

先放效果图：

这是我第一次尝试在Mac平台下编程，之前学过几天IOS开发，一直在等MJ老师更新。闲下来不编程不舒服，给自己，也给老婆编了这个以提醒自己好好学习。v2版加入了各种倒计时。改进了界面。把倒计时计算抽成了一个类，提高程序的复用性。

-概览

首先放上xib界面图

 

 

 

-改界面名字

建项目的过程中一开始不小心取了个没有远见的名字“考研倒计时”，后来改成了倒计时。怎么改呢？我是这样改的：（比如程序的window，上面的menuitem类同）

顺手把Resize的钩钩去掉

把Full Screen改成Primary Window蛮有意思的。（试试把Resize勾上再全屏）

 

 

 

-拖入控件

这里我一开始只拖进去这5句话（NSTextField），双击控件先把文字改个样子做个效果。在右边顺便把字体改了。

后来如图又加入了一个NSImageView 以作背景

在Attribute Inspector中改成我事先找好的图，并把Scaling改成AxesIndependently 这样图片就可以适当的放缩了。

 

 

-代码&优化

一开始我的代码是这样的，后来又加了纪念日、软考等，代码是直接“拷贝”复用的。

#pragma mark - 设置 -

NSDateComponents *components=[[NSDateComponents alloc]init];//创建组件

#pragma mark 考研

      [components setMonth:1];

      [components setDay:4];

      [components setYear:2015];

      [components setHour:7];

      NSDate *targetDate = [[NSCalendar currentCalendar] dateFromComponents:components];

      NSTimeInterval targetInteval = [targetDate timeIntervalSinceNow];

    // NSLog(@"%f",KYinteval);

    NSLog(@"%d",(int)targetInteval/60/60/24);

    [_KYLabel setStringValue:[NSString stringWithFormat:@"距离考研还有%d天！",(int)targetInteval/60/60/24]];

.csharpcode, .csharpcode pre

{

font-size: small;

color: black;

font-family: consolas, "Courier New", courier, monospace;

background-color: #ffffff;

/white-space: pre;/

}

.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

.csharpcode .alt

{

background-color: #f4f4f4;

width: 100%;

margin: 0em;

}

.csharpcode .lnum { color: #606060; }

v2版把倒计时计算抽成了一个类，提高程序的复用性。

用法如下：（使用了Delegate思想和静态实例化思想）

ZZYDateCounter*dc=[ZZYDateCounter CounterWithTargetYear:2015mounth:1day:4hour:7andSentence:@"距离考研还有%d天！"];

    dc.textDelegate=_KYLabel;

    [dc say];

.csharpcode, .csharpcode pre

{

font-size: small;

color: black;

font-family: consolas, "Courier New", courier, monospace;

background-color: #ffffff;

/white-space: pre;/

}

.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

.csharpcode .alt

{

background-color: #f4f4f4;

width: 100%;

margin: 0em;

}

.csharpcode .lnum { color: #606060; }

ZZYDateCounter源代码如下：（提供了使用NSDate初始化和直接使用年月日小时直接初始化的两个接口，为以后的扩展预留接口）

//

//  ZZYDateCounter.h

//  考研倒计时

//

//  Created by 张泽阳 on 3/14/14.

//  Copyright (c) 2014 张泽阳. All rights reserved.

//

 #import <Foundation/Foundation.h>

 @interface ZZYDateCounter : NSObject

@property NSTextField* textDelegate;

-(void)say;

+(ZZYDateCounter*)CounterWithTargetDate:(NSDate*)targetDate andTargetSentence:(NSString*)targetSentence;

+(ZZYDateCounter*)CounterWithTargetYear:(int)y mounth:(int)m day:(int)d hour:(int)h andSentence:(NSString*)targetSentence;

@end

//

//  ZZYDateCounter.m

//  考研倒计时

//

//  Created by 张泽阳 on 3/14/14.

//  Copyright (c) 2014 张泽阳. All rights reserved.

//

 #import "ZZYDateCounter.h"

 @implementation ZZYDateCounter{

    NSDateComponents *components;

    NSString* counterSentence;

    NSTimeInterval targetInteval;

    NSDate *targetDate ;

    }

-(id)init{

    if (self=[super init]) {

        components=[[NSDateComponentsalloc]init];//创建组件

    }

    returnself;

}

-(id)initWithDate:(NSDate*)date andSentence:(NSString*)sentence{

    if ((self=self.init)) {

//        form http://blog.sina.com.cn/s/blog_8732f19301010fxd.html

//        NSDate 相互转换

//        

//        NSDateComponents *comps = [[NSDateComponents alloc] init];

//        

//        [comps setDay:6];

//        

//        [comps setMonth:5];

//        

//        [comps setYear:2004];

//        

//        NSCalendar *gregorian = [[NSCalendar alloc]

//                                 

//                                 initWithCalendarIdentifier:NSGregorianCalendar];

//        

//        NSDate *date = [gregorian dateFromComponents:comps];

//        

//        [comps release];

//        

//        NSDateComponents *weekdayComponents =

//        

//        [gregorian components:NSWeekdayCalendarUnit fromDate:date];

//        

//        int weekday = [weekdayComponents weekday];

        NSCalendar *gregorian = [[NSCalendar alloc]

                                initWithCalendarIdentifier:NSGregorianCalendar];

        components=[gregorian components:NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit |NSHourCalendarUnitfromDate:date];

        counterSentence=[NSString stringWithString:sentence];

            } ;

    returnself;

}

-(void)say{

    targetDate = [[NSCalendarcurrentCalendar] dateFromComponents:components];

    targetInteval = [targetDatetimeIntervalSinceNow];

    if (targetInteval<0) {

        targetInteval=-targetInteval;

    }

    [_textDelegatesetStringValue:[NSStringstringWithFormat:counterSentence,(int)targetInteval/60/60/24]];

 }

-(id)initWithYear:(int)y mounth:(int)m day:(int)d hour:(int)hour andSentence:(NSString*)sentence{

     if ((self=self.init)) {

         [components setMonth:m];

             [components setDay:d];

            [components setYear:y];

         [components setHour:hour];

          counterSentence=[NSString stringWithString:sentence];

     }

    returnself;

}

+(ZZYDateCounter *)CounterWithTargetDate:(NSDate *)targetDate andTargetSentence:(NSString *)targetSentence{

        ZZYDateCounter* counter = [[ZZYDateCounteralloc] init];

    return [counter initWithDate:targetDate andSentence:targetSentence];

 }

+(ZZYDateCounter*)CounterWithTargetYear:(int)y mounth:(int)m day:(int)d hour:(int)h andSentence:(NSString *)targetSentence{

    ZZYDateCounter* counter = [[ZZYDateCounteralloc] init];

    return [counter initWithYear:y mounth:m day:d hour:h andSentence:targetSentence];

     }

@end

.csharpcode, .csharpcode pre

{

font-size: small;

color: black;

font-family: consolas, "Courier New", courier, monospace;

background-color: #ffffff;

/white-space: pre;/

}

.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

.csharpcode .alt

{

background-color: #f4f4f4;

width: 100%;

margin: 0em;

}

.csharpcode .lnum { color: #606060; }

 

在AppDelegate中添加下面两个方法：

//关闭Window后退出程序

-(BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender{

    NSLog(@"ttt");

    returnYES;

}

 //当然少不了彩蛋了！

- (IBAction)onAboutClicked:(NSMenuItem *)sender {

    NSAlert *alert = [NSAlertalertWithMessageText:@"关于这个软件"defaultButton:@"我也爱你" alternateButton:nilotherButton:nilinformativeTextWithFormat:@"为我家亲爱的编写，祝我们都能考上好研究生，一辈子在一起！\n永远爱我家文儿！"];

    [alert beginSheetModalForWindow:_windowcompletionHandler:nil];

}

.csharpcode, .csharpcode pre

{

font-size: small;

color: black;

font-family: consolas, "Courier New", courier, monospace;

background-color: #ffffff;

/white-space: pre;/

}

.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

.csharpcode .alt

{

background-color: #f4f4f4;

width: 100%;

margin: 0em;

}

.csharpcode .lnum { color: #606060; }

最后，别忘了

设置为开机自启:)

 

 

心得体会：

Mac下开发果然特别舒服，和IOS一脉相承。了解了NSImageView和NSTextView和NSWindow 等控件。

计划以后继续深入了解如：

改变部分字体颜色和文字大小、

改进NSWindow的外观、

使用快捷键进出全屏

等。

还有，感觉排版很渣。。。MarsEdit还不是很熟。。继续努力！