• 第一个Mac程序——倒计时v1&v2


    先放效果图:

    Screen Shot 2014 03 14 at 3 48 56 PM

    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

    Screen Shot 2014 03 14 at 4 06 33 PM

     

     

    -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)

    Screen Shot 2014 03 14 at 4 26 30 PM

    顺手把Resize的钩钩去掉

    Screen Shot 2014 03 14 at 4 28 44 PM

    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。

    Screen Shot 2014 03 14 at 4 20 23 PM

    Screen Shot 2014 03 14 at 4 14 59 PM

    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]];


    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];

    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

     

    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];
     
    }

    最后,别忘了Screen Shot 2014 03 14 at 5 08 58 PM

    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!

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  • 原文地址:https://www.cnblogs.com/zeyang/p/3601340.html
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