Head scrolling display view for IOS development

//

Rootviewcontroller.m

Head Scrolling Display view

Head scrolling AD View

#define Screen_size [UIScreen mainscreen].bounds.size

#define KIMAGECNT 5

#define KIMAGE_H 250

#import "RootViewController.h"

@interface Rootviewcontroller () <UIScrollViewDelegate>

@property (nonatomic, Strong) Uiscrollview * ScrollView;

@property (nonatomic, Strong) Uipagecontrol * Pagecontrol;

@property (nonatomic, strong) Nstimer * timer;

@end

@implementation Rootviewcontroller

/**

* ScrollView

*/

-(Uiscrollview *) ScrollView

{

if (_scrollview = = nil) {

_scrollview = [[Uiscrollview alloc] Initwithframe:cgrectmake (0, 0, Screen_size.width, Kimage_h)];

_scrollview.pagingenabled = YES;

_scrollview.showshorizontalscrollindicator = NO;

}

return _scrollview;

}

/**

* Pagecontrol

*/

-(Uipagecontrol *) Pagecontrol

{

if (_pagecontrol = = nil) {

_pagecontrol = [[Uipagecontrol alloc] Initwithframe:cgrectmake (0, self.scrollview.frame.size.height-30, SCREEN_ Size.width, 20)];

_pagecontrol.currentpageindicatortintcolor = [Uicolor colorwithred:65/255.0 green:168/255.0 blue:100/255.0 alpha:1.0 ];

_pagecontrol.pageindicatortintcolor = [Uicolor Graycolor];

}

return _pagecontrol;

}

/**

* Initialize UI

*/

-(void) setupui

{

[Self.view AddSubview:self.scrollView];

[Self.view AddSubview:self.pageControl];

CGFloat imagey = 0;

CGFloat Imagew = screen_size.width;

CGFloat Imageh = Kimage_h;

for (int i = 0; i < kimagecnt; i++) {

Uiimageview * ImageView = [[Uiimageview alloc] Initwithframe:cgrectmake (i * imagew, Imagey, Imagew, Imageh)];

Imageview.image = [UIImage imagenamed:[nsstring stringwithformat:@ "Image_%i.jpg", i+1]];

[Self.scrollview Addsubview:imageview];

}

Setting the ScrollView Property

Self.scrollView.contentSize = Cgsizemake (kimagecnt * imagew, 0);

Self.scrollView.delegate = self;

Self.pageControl.numberOfPages = kimagecnt;

Set auto Play

[Self turnontimer];

}

/**

* Turn on the timer

*/

-(void) Turnontimer

{

Self.timer = [Nstimer scheduledtimerwithtimeinterval:1.0 target:self selector: @selector (playimage) Userinfo:nil Repeats:yes];

To prevent single-threaded defects

[[Nsrunloop Currentrunloop] AddTimer:self.timer formode:nsrunloopcommonmodes];

}

/**

* Turn off the timer

*/

-(void) Turnofftimer

{

[Self.timer invalidate];

Self.timer = nil;

}

/**

* Automatically play pictures

*/

-(void) playimage

{

int i = Self.pageControl.currentPage;

if (i = = KImageCnt-1) {

i =-1;

}

i++;

[Self.scrollview setcontentoffset:cgpointmake (i * self.scrollView.frame.size.width, 0) Animated:yes];

}

-(void) Viewdidload {

[Super Viewdidload];

[Self setupui];

}

#pragma mark-uiscrollviewdelegate

/**

* Close Timer when user is ready to drag and drop

*/

-(void) scrollviewwillbegindragging: (Uiscrollview *) ScrollView

{

[Self turnofftimer];

}

/**

* When the user stops dragging, a new timer is opened.

*/

-(void) scrollviewdidenddragging: (Uiscrollview *) ScrollView willdecelerate: (BOOL) decelerate

{

[Self turnontimer];

}

Determines the scrolling position when the timer is scrolled so that Pagecontrol displays the current page

The width of a half ScrollView is added to the total width to achieve the effect of dragging to the left half of the time

-(void) Scrollviewdidscroll: (Uiscrollview *) ScrollView

{

Self.pageControl.currentPage = (Self.scrollView.frame.size.width * 0.5 + self.scrollview.contentoffset.x)/ Self.scrollView.frame.size.width;

}

-(void) didreceivememorywarning {

[Super didreceivememorywarning];

}

@end

IOS Development Head Scrolling display view (GO)