[Extraordinary programmer] Countdown uiimage uidatepicker nsdate

Countdown @implementation viewcontroller-  (void) viewdidload {    [super  viewdidload];    [nstimer scheduledtimerwithtimeinterval:1.0f target:self  Selector: @selector (Jishi)  userinfo:nil repeats:yes];} -  (void) didreceivememorywarning {    [super didreceivememorywarning];} -(void) jishi{    //converted to local time     nsdate *begindate = [[ Nsdate alloc]init];    nsstring *[email protected] "2015-11-14 00:00:00  +00 ";     nsdateformatter *format = [[nsdateformatter alloc]init] ;     [format setdateformat:@ "Yyyy-mm-dd hh:mm:ss +hh"];         NSDate *endDate = [format dateFromString:endtime];     nsstring *beg=[format stringfromdate:begindate];     nslog (@ "%@,%@", beg,enddate);         _ Begin.text=beg;    nsmutablestring *string = [[nsmutablestring alloc] init];       nstimeinterval timedif = [enddate  Timeintervalsince1970]-[begindate timeintervalsince1970];       int  shi= timeDif/3600;    int fen=  (timedif-(shi*60*60))/60;     int miao=timedif-(shi*60*60)-(fen*60);     [string appendstring:[ nsstring stringwithformat:@ "%i-%i-%i", Shi,fen,miao]];//    nslog (@ "%@", String);     _countDown.text=string;//    _countDown.text=string;         _end.text=[nsstring stringwithformat:@ "%@", [format stringfromdate: Enddate]];    }//uiimage-  (void) viewdidload {    [super viewdidload];    _i= 20;    //Picture Instantiation method One:     uiimageview  * imageview =  [ [ UIImageView alloc ] init ] ;         //Picture Instantiation Method Two:     uiimageview  * imageviewi = [ [  UIImageView alloc ] initWithFrame: CGRectMake  ( 10, 10, 200,  200 )  ] ;        //Set the content of ImageView      imageviewi.image = [ uiimage imagenamed:@ "0"  ] ;             //Picture Instantiation Method Three:    uiimageview   * imageviewii = [ [ uiimageview alloc ] initwithimage :  [ uiimage imagenamed : @ "4"  ] ] ;        //setting the size of the ImageView     imageViewII.frame = CGRectMake  ( 180, 100, 100, 100  )  ;            //image instantiation Method Four: (Picture two States)     _imageViewIII = [ [ UIImageView alloc ]  initwithimage : [ uiimage imagenamed:@ "1"  ] highlightedImage : [  uiimage imagenamed:@ "2"  ] ] ;    _imageViewIII.frame =  cgrectmake  ( 5,5, 100, 100 )  ;             //add a picture to the page      [ self.view addsubview:_ imageviewiii ] ;            //Add button to control picture status     uibutton  * button = [ [ uibutton alloc ] initwithframe : cgrectmake  (  80, 80, 180, 30 )  ] ;    [ button settitle  : @ "Highlight Toggle"  forState : UIControlStateNormal ] ;     button.backgroundcolor = [ uicolor redcolor ] ;    [  button  addtarget : self action :  @selector (Gaoliang)  forControlEvents :uicontroleventtouchupinside];    [self.view addsubview:button];         // =========    gestures on pictures     ========         _imageviewiiii = [ [ uiimageview alloc  ] initwithimage : [ uiimage imagenamed:@ "4"  ] ];         _imageviewiiii.frame = cgrectmake (10, 150, 100, 100);         _imageviewiiii.backgroundcolor=[uicolor redcolor];//can add a background color to the image to clarify the difference between image and ImageView         //add a picture to the page     [self.view addsubview: _imageviewiiii];        //Images Support Interactive     _ imageviewiiii.userinteractionenabled = yes;    //     Defining gestures     uitapgesturerecognizer *gestur = [ [ uitapgesturerecognizer  alloc ]initwithtarget:self action: @selector (Shoushi)  ];    //      Add a picture gesture     [_imageViewIIII addGestureRecognizer:gestur];         //  ===========   Picture Rotation   ============     _rotationimageview = [[ uiimageview alloc]initwithimage:[ uiimage imagenamed:@ "0"  ] ]  ;    _rotationimageview.frame=cgrectmake (200, 200, 100, 100);     [self.view addSubview:_rotationImageView];         //Add button control Picture status     UIButton  * buttonI = [ [  uibutton alloc ] initwithframe : cgrectmake  ( 200, 150, 80,  30 )  ] ;    [ buttoni settitle : @ "Picture Rotation"  forState  : uicontrolstatenormal ] ;    buttoni.backgroundcolor = [  uicolor redcolor ] ;    [ buttoni  addtarget :  self action :  @selector (Xuanzhuan)  forControlEvents:UIControlEventTouchUpInside];     [self.view addsubview:buttoni];            //   ===========   Picture Indent   ============    _changesizeimageview = [[  uiimageview alloc]initwithimage:[ uiimage imagenamed:@ "2"  ] ] ;     _changesizeimageview.frame=cgrectmake (20, 300, 100, 100);     [self.view addsubview:_changesizeimageview];        // Add button control picture magnification     uibutton  * buttonbig = [ [ uibutton  alloc ] initWithFrame : CGRectMake  ( 110, 320, 80, 30  )  ] ;    [ buttonbig settitle : @ "Picture amplification"  FORSTATE :  UIControlStateNormal ] ;    buttonBig.backgroundColor = [  UICOLOR REDCOLOR ] ;    [ buttonBig  addTarget : self action :  @selector (Fangda)  forControlEvents:UIControlEventTouchUpInside];    [self.view  addsubview:buttonbig];    //Add button control picture reduction     UIButton  *  Buttonsmall = [ [ uibutton alloc ] initwithframe : cgrectmake   ( 110, 360, 80, 30 )  ] ;    [ buttonsmall  settitle : @ "Picture Zoom Out"  forState : UIControlStateNormal ] ;     buttonSmall.backgroundColor = [ UIColor redColor ] ;     [ buttonSmall  addTarget : self action :  @selector (Suoxiao )  forcontrolevents:uicontroleventtouchupinside];    [self.view addsubview: buttonsmall];            //======   using Frame Control zoom   ======     _changeFrameImageView = [[ UIImageView alloc]initWithImage:[  uiimage imagenamed:@ "5"  ] ] ;    _changeframeimageview.frame= CGRectMake (120, 430, 100, 100);     [self.view addsubview:_ changeframeimageview];        //Add button control image magnification      Uibutton  * framebig = [ [ uibutton alloc ] initwithframe  : CGRectMake  ( 110, 600, 50, 30 )  ] ;     [ framebig settitle : @ "Enlarge"  FORSTATE : UICONTROLSTATENORMAL ]  ;    frameBig.backgroundColor = [ UIColor redColor ] ;     [ framebig  addtarget : self action :  @selector (Zengda)  forcontrolevents: uicontroleventtouchupinside];    [self.view addsubview:framebig];     //Add button control picture reduction     UIButton  * frameSmall = [ [  uibutton alloc ] initwithframe : cgrectmake  ( 220, 600,50, 30  )  ] ;    [ framesmall settitle : @ "Zoom Out"  forState  : UIControlStateNormal ] ;    frameSmall.backgroundColor =  [ uicolor redcolor ] ;    [ framesmall  addtarget  : self action :  @selector (Bianxiao)  forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:frameSmall];    //     _imageviewiii.center=cgpointzero;//Set Picture Center location, Cgpointzero is the origin (0,0)//    [self.view bringsubviewtofront:imageviewi];//move the control to the front      //    _imageViewIIII.contentMode=UIViewContentModeCenter;//     _imageviewiii.transform=cgaffinetransformmaketranslation (100, 200);}  //Add button control picture magnification callback method-(void) fangda{    _changesizeimageview.transform= Cgaffinetransformmakescale (2, 5);}    //Add button control Picture Shrink callback Method-(void) suoxiao{    _changesizeimageview.transform= Cgaffinetransformmakescale (0.2, 0.5);} Image magnification callback Method-(void) zengda{    cgrect bonus = _changeframeimageview.bounds;// Image Center for Midpoint     bonus.size.width += 30;    bonus.size.height  += 30;    _changeframeimageview.bounds = bonus;} Picture reduction callback Method-(void) bianxiao{    cgrect frame =  _ changeframeimageview.frame;//The top left corner of the picture is the center     frame.size.height -= 30;    frame.size.width  -= 30;    _changeframeimageview.frame = frame;} method to toggle highlighting added-(void) gaoliang{    if  (_imageviewiii.highlighted==yes)  {         _imageViewIII.highlighted=NO;    }else{         _imageviewiii.highlighted=yes;    }}-(void) Shoushi{    nslog (@ "picture gesture method ... ");} Click on the image Rotation button to invoke the custom method, where you set the picture to rotate how much-(void) xuanzhuan{    _i+=20;    _ Rotationimageview.transform=cgaffinetransformmakerotation (m_pi*_i/180);//     This rotation is centered on the center of the image, the rotation angle is: m_pi*? In the/180? Position}-  (void) didreceivememorywarning {    [super didreceivememorywarning];     // dispose of any resources that can&nbsP;be recreated.} @end//datepicker  (void) viewdidload {    [super viewdidload];     //    UIDatePicker  is a controller class that is a subclass of Uicontrol that is dedicated to accepting input for date, time, and duration. The columns of the date picker are automatically configured according to the style you specify   //    UIDatePicker  depend on  NSDate  class              _datePicker.minuteInterval=6;      //setting the style of the DatePicker     _datepicker.datepickermode=uidatepickermodedate;//      format A string of time as NSDate type     nsstring *[email protected] " 2012-12-22 ";    nsdateformatter *formatter=[[nsdateformatter alloc]init];     [formatter setdateformat:@ "Yyyy-mm-dd"];    nsdate *date=[ formatter datefromstring:string];//     minimum time to set DatePicker     _ Datepicker.minimumdate=date;     //adding events to DatePicker     [_datepicker addtarget:self  action: @selector (datechange:)  forControlEvents:UIControlEventValueChanged];     }//custom method of callback when DatePicker value changes-(void) Datechange: (uidatepicker *) sender{    nsdate  *date=_datepicker.date;    nslog (@ "%@", date);} -  (void) didreceivememorywarning {    [super didreceivememorywarning];     // dispose of any resources that can be recreated.} nsdate        // insert code here...         nslog (@ "hello, world!");         //how to get the current time there are two          Nsdate * date = [ [ nsdate alloc ] init ] ;                nsdate  *  dateI = [ NSDate date ] ;//          Convert NSDate to nsstring                 nsdateformatter  * dateformatter = [  [ nsdateformatter  alloc ]init ] ;                 [ dateformatter setdateformat : @ "Yyyy-MM-dd HH:mm:ss"  ]  ;        nsstring  * nowtime = [ [  NSString alloc ] init ] ;         nowtime = [ dateformatter stringfromdate:datei ] ;         NSLog  (&Nbsp;@ " ==== %@ "  , nowTime );                 NSLog  ( @ " %@ ---- %@ "    date , dateI )  ;//         convert string to date         nsstring  * string = @ "2013-12-25  12:23:57 " ;        nsdate  * dateiii = [  dateFormatter dateFromString:string ] ;         nslog  ( @ "%@"  , dateIII )  ;    }     return 0;}

[Extraordinary programmer] Countdown uiimage uidatepicker nsdate